US 5,698,169 AGranted

Methods and agents for the extraction of cesium and strontium from nuclear waste

AssigneeCoremetals Research, Inc.

InventorsM. Frederick Hawthorne, Gary B. Dunks

Life of this patent

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Abstract

Methods and agents for extracting cesium and strontium ions from aqueous solutions, including aqueous fission product waste solutions, are disclosed using substituted metal dicarbollide and/or dicarbaextranide ions containing one or more chemical groups that increase solubility of the substituted metal dicarbollide or dicarbaextranide ions in non-nitrated, non-chlorinated solvents, or using metal dicarbollide or dicarbaextranide ion-substituted silicones.

Claims41

Dependent claims

A substituted dicarbaextranide comprising a compound selected from the group consisting of:

a) metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
10 where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and;
each R is independently selected from R.sub.1 and R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

31 more elements

The conjugate acid of a substituted dicarbaextranide, wherein the substituted dicarbaextranide comprises:

a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'" )(R')--O--!.sub.e ----!Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5 and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro- substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl,
provided that at least one R must be R.sub.1.

29 more elements

An extraction agent comprising a metal dicarbaextranide ion-substituted organosiloxane of the formula:

(R').sub.3 Si--O--{Si(R').sub.2--O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')---O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
wherein
M is a transition metal capable of forming a trivalent oxidation state;
W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

28 more elements

A method for selectively extracting cesium ions from an aqueous phase, comprising:

forming an aqueous-nonaqueous liquid combination by contacting a pregnant aqueous phase containing cesium ions with a first nonaqueous phase comprising at least one extraction agent, wherein the extraction agent is a substituted metal dicarbaextranide;
and
separating the liquid combination into a stripped aqueous phase and a pregnant nonaqueous phase, wherein the pregnant nonaqueous phase contains cesium ions extracted from the pregnant aqueous phase;
wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

34 more elements

A method for selectively extracting strontium ions from a substantially cesium-free aqueous solution, comprising:

adding a polyethylene glycol or p-nonylphenyl-nonaethylene glycol to a pregnant aqueous phase containing strontium ions;
forming an aqueous-nonaqueous liquid combination by contacting the pregnant aqueous phase with a first nonaqueous phase comprising at least one extraction agent, wherein the extraction agent is a substituted dicarbaextranide;
and
separating the liquid combination into a stripped aqueous phase and a pregnant nonaqueous phase, wherein the pregnant nonaqueous phase contains strontium ions extracted from the pregnant aqueous phase;
wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub. ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms;
and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5 and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0to 4, b, d, f, and h are 0to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl 1 of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10 and R', R", R'", b, c, and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

35 more elements

A method for selectively extracting cesium and strontium ions from an aqueous solution, comprising:

forming a first aqueous-nonaqueous liquid combination by contacting a pregnant aqueous phase containing cesium and strontium ions with a first nonaqueous phase comprising at least one extraction agent, wherein the extraction agent is a substituted dicarbaextranide;
separating the first liquid combination into a stripped aqueous phase and a pregnant nonaqueous phase, wherein the pregnant nonaqueous phase contains cesium ions extracted from the pregnant aqueous phase;
modifying the stripped aqueous phase by adding a polyethylene glycol or p-nonylphenylnonaethylene glycol;
forming a second aqueous-nonaqueous liquid combination by contacting the modified, stripped aqueous phase with a fresh nonaqueous phase comprising at least one extraction agent, wherein the extraction agent is a substituted dicarbaextranide;
and
separating the second liquid combination into a second stripped aqueous phase and a second pregnant nonaqueous phase, wherein the second pregnant nonaqueous phase contains strontium ions;
wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10 and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

36 more elements

A method for extracting cesium ions from an aqueous solution, comprising contacting the cesium ions with at least one extraction agent comprising a substituted dicarbaextranide;

wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3 ', --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

30 more elements

A method for extracting strontium ions from an aqueous solution, comprising contacting the strontium ions, in the presence of a polyethylene glycol or p-nonaphenylnonaethylene glycol, with at least one an extraction agent comprising a substituted dicarbaextranide;

wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'-1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula;
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluorormethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to have 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro- substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro- substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

30 more elements

A semipermeable membrane, comprising a silicone elastomer or microporous polymer film wherein the elastomer or film comprises at least one substituted dicarbaextranide:

wherein the substituted dicarbaextranide comprises:
a) a metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.1'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and each R is independently selected from R.sub.1 or R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

31 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/459,618Filed 2 Jun 1995 · continuation in part
Priority: 21 Apr 1995
Granted: 16 Dec 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

C01D 17/00
Rubidium, caesium or francium compounds
C01F 11/005
Compounds of calcium, strontium, or barium: preparation involving liquid-liquid extraction, absorption or ion-exchange
C08G 77/398
Containing atoms other than carbon, hydrogen, oxygen or silicon: containing boron or metal atoms
C22B 3/37
By liquid-liquid extraction using organic compounds: containing boron, silicon, selenium or tellurium

Family

Serial427,007Parent of this continuation-in-part · filed 21 Apr 1995
US 5,698,169 AThis patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

A substituted dicarbaextranide comprising a compound selected from the group consisting of:

a) metal dicarbaextranide ion of the formula:
M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1).sub.2.sup.- ;
or
b) a metal dicarbaextranide ion-substituted organosiloxane of the formula:
(R').sub.3 Si--O--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d ----Si(R'")(R')--O--!.sub.e ----Si(R').sub.2 --O--!.sub.f SiR'R"--O--!.sub.g Si(R').sub.2 --O--!.sub.h }.sub.i Si(R').sub.3 ;
wherein
M is a transition metal capable of forming a trivalent oxidation state;
R' is methyl or trifluoromethyl;
R" is phenyl or fluoro-substituted phenyl;
R'" is a metal dicarbaextranide ion moiety of the formula:
--W--M(B.sub.10 C.sub.2 H.sub.11-a' R.sub.a'+1 Z).sub.2.sup.- !
where W is oxygen or alkylene having from 2 to about 10 carbon atoms, and each Z is independently selected from hydrogen, alkyl having from about 1 to about 10 carbon atoms;
fluoro-substituted alkyl having from 1 to about 10 carbon atoms;
phenyl or substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
10 where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
a' is 0 to 4;
b, d, f, and h are 0 to 10;
c and g are 0 or 1;
and e and i are 1 to 10;
and;
each R is independently selected from R.sub.1 and R.sub.2, where
R.sub.1 is alkyl having from about 7 to about 10 carbon atoms;
fluoro-substituted alkyl having from 2 to about 10 carbon atoms;
substituted phenyl of the formula:
--C.sub.6 H.sub.5-j Y.sub.j
where j is 1 to 5, and Y is fluorine, phenyl or fluoro-substituted phenyl;
or R.sub.1 is an organosiloxane of the formula:
--W--{Si(R').sub.2 --O--!.sub.b SiR'R"--O--!.sub.c Si(R').sub.2 --O--!.sub.d }.sub.k E
where
E is --Si(R').sub.3, --Si(R').sub.2 (C.sub.6 H.sub.5) or R'", k is 1 to 10, and R', R", R'", b, c and d are as defined above;
and
R.sub.2 is selected from the group consisting of chlorine, bromine, methyl and trifluoromethyl;
provided that at least one R must be R.sub.1.

31 more elements

Facts

Application

08/459,618Filed 2 Jun 1995 · continuation in part

Priority

21 Apr 1995

Granted

16 Dec 1997

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

C01D 17/00
Rubidium, caesium or francium compounds
C01F 11/005
Compounds of calcium, strontium, or barium: preparation involving liquid-liquid extraction, absorption or ion-exchange
C08G 77/398
Containing atoms other than carbon, hydrogen, oxygen or silicon: containing boron or metal atoms
C22B 3/37
By liquid-liquid extraction using organic compounds: containing boron, silicon, selenium or tellurium