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US 7,704,468 B1Granted
Method for forming an extraction agent for the separation of actinides from lanthanides
AssigneeBattelle Energy Alliance, LLC
InventorsJohn R. Klaehn, Mason K. Harrup, Jack D. Law, Dean R. Peterman
Life of this patent
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Abstract
An extraction agent for the separation of trivalent actinides from lanthanides in an acidic media and a method for forming same are described, and wherein the methodology produces a stable regiospecific and/or stereospecific dithiophosphinic acid that can operate in an acidic media having a pH of less than about 7.
Claims42
A method of forming an extraction agent for separation of actinides from lanthanides, comprising:
- reacting a first reagent with a second reagent to produce (X)2—R1-phosphine, the first reagent having a formula P—(X)3 wherein X is a halogen, and the second reagent having a formula R1-(M1)X, wherein R1 is organic, M1 is a metal selected from the group consisting of magnesium, lithium, sodium, aluminum, zinc, cadmium, mercury, copper, lead, thallium, tin and combinations thereof, and X is a halogen;
- reacting the (X)2—R1-phosphine with a third reagent having a formula R2-(M1)X, wherein R2 is organic and X is a halogen, to produce R2—R1—X-phosphine;
- reacting the R2—R1—X-phosphine with a metal hydride reagent having a formula (H)-M2, wherein M2 is a metal selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, boron, aluminum, and combinations thereof, to produce R2—R1—H-phosphine;
- and
- reacting a source of sulfur with the R2—R1—H-phosphine to produce R2—R1-dithiophosphinic acid.
2 more elements
A method for forming an extraction agent for separation of actinides from lanthanides, comprising:
- reacting a first reagent with a second reagent to produce R1—X—Rprot-phosphine, the first reagent having a formula P—(X)2—Rprot wherein X is a halogen and Rprot is an organoamine comprising an alkyl group having from one carbon atom to five carbon atoms, the second reagent having a formula R1-(M1)X, wherein R1 is organic, M1 is a metal selected from the group consisting of magnesium, lithium, sodium, aluminum, zinc, cadmium, mercury, copper, lead, thallium, tin and combinations thereof, and X is a halogen;
- reacting the R1—X—Rprot-phosphine with a third reagent having a formula R2-(M1)X, wherein R2 is organic and X is a halogen, to produce R2—R1—Rprot-phosphine;
- reacting the R2—R1—Rprot-phosphine with a fourth reagent having a formula H—X wherein X is a halogen to produce R2—R1—X-phosphine;
- reacting the R2—R1—X-phosphine with a metal hydride reagent having a formula H-(M2) wherein M2 is a metal selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, boron, aluminum and combinations thereof to produce R2—R1—H-phosphine;
- and
- reacting a source of sulfur with the R2—R1—H-phosphine in toluene to produce R2—R1-dithiophosphinic acid.
3 more elements
A method of forming an asymmetrical extraction agent for separation of actinides from lanthanides in an acidic medium, comprising:
- reacting o-trifluoromethylphenylmagnesium bromide with phosphorus trichloride to produce dichloro(o-trifluoromethylphenyl) phosphine;
- reacting the dichloro(o-trifluoromethylphenyl) phosphine with n-octylmagnesium bromide to produce chloro(n-octyl)(o-trifluoromethylphenyl) phosphine;
- reacting the chloro(n-octyl)(o-trifluoromethylphenyl) phosphine with lithium aluminum hydride to produce (n-octyl)(o-trifluoromethylphenyl) phosphine;
- and
- reacting a source of sulfur with the (n-octyl)(o-trifluoromethylphenyl) phosphine to produce (n-octyl)(o-trifluoromethylphenyl) dithiophosphinic acid.
2 more elements
A method of forming an asymmetrical extraction agent for separation of actinides from lanthanides in an acidic medium, comprising:
- reacting a source of o-trifluoromethylphenylmagnesium bromide with dichloro(diethylamino) phosphine to produce chloro(diethylamino)(o-trifluoromethylphenyl) phosphine;
- reacting the chloro(diethylamino)(o-trifluoromethylphenyl) phosphine with n-octylmagnesium bromide to produce (diethylamino)(n-octyl)(o-trifluoromethylphenyl) phosphine;
- reacting the (diethylamino)(n-octyl)(o-trifluoromethylphenyl) phosphine with anhydrous hydrogen chloride to produce chloro(n-octyl)(o-trifluoromethylphenyl) phosphine;
- reacting the chloro(n-octyl)(o-trifluoromethylphenyl) phosphine with lithium aluminum hydride to produce (n-octyl)(o-trifluoromethylphenyl) phosphine;
- and
- reacting a source of sulfur with the (n-octyl)(o-trifluoromethylphenyl) phosphine to produce (n-octyl)(o-trifluoromethylphenyl) dithiophosphinic acid.
3 more elements
A method of forming an extraction agent for separation of actinides from lanthanides, comprising:
- reacting a first reagent with a second reagent to produce (R1)2—Rprot-phosphine, the first reagent having a formula P—(X)2—Rprot wherein X is a halogen and Rprot is an organoamine comprising an alkyl group having from one carbon atom to five carbon atoms, and the second reagent having a formula R1-(M1)X wherein R1 is organic, M1 is a metal selected from magnesium, lithium, sodium, aluminum, zinc, cadmium, mercury, copper, lead, thallium, tin and combinations thereof, and X is a halogen;
- reacting the (R1)2—Rprot-phosphine with a third reagent having a formula H—X to produce (R1)2—X-phosphine, wherein X is a halogen;
- reacting a metal hydride reagent having a formula H-(M2) with the (R1)2—X-phosphine to produce (R1)2—H-phosphine, wherein M2 is a metal selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, boron, aluminum, and combinations thereof;
- and
- reacting a source of sulfur with the (R1)2—H-phosphine to produce (R1)2-dithiophosphinic acid.
2 more elements
A method for forming an extraction agent for separation of actinides from lanthanides, comprising:
- reacting a first reagent with a second reagent to produce (R1)2—X-phosphine, the first reagent having a formula P—(X)3, wherein X is a halogen, and the second reagent having a formula R1-(M1)X wherein R1 is an organic group comprising an inorganic component, M1 is a metal selected from the group consisting of magnesium, lithium, sodium, aluminum, zinc, cadmium, mercury, copper, lead, thallium, tin and combinations thereof, and X is a halogen;
- reacting a metal hydride reagent having a formula H-M2 with the (R1)2—X-phosphine, wherein M2 is a metal selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, boron, aluminum, and combinations thereof, to produce (R1)2—H-phosphine;
- and
- reacting a source of sulfur with the (R1)2—H-phosphine to produce (R1)2-dithiophosphinic acid.
1 more element
A method of forming a symmetrical extraction agent for separation of actinides from lanthanides in acidic medium, comprising:
- reacting o-trifluoromethylphenylmagnesium bromide with phosphorus trichloride to produce chloro(di-o-trifluoromethylphenyl) phosphine;
- reacting the chloro(di-o-trifluoromethylphenyl) phosphine with lithium aluminum hydride to produce (di-o-trifluoromethylphenyl) phosphine;
- and
- reacting a source of sulfur with the (di-o-trifluoromethylphenyl) phosphine to produce (di-o-trifluoromethylphenyl) dithiophosphinic acid.
1 more element
A method of forming a symmetrical extraction agent for separation of actinides from lanthanides, comprising:
- reacting o-trifluoromethylphenylmagnesium bromide with dichloro(diethylamino) phosphine to produce (diethylamino)(di-o-trifluoromethylphenyl) phosphine;
- reacting the (diethylamino)(di-o-trifluoromethylphenyl) phosphine with anhydrous hydrogen chloride to produce chloro(di-o-trifluoromethylphenyl) phosphine;
- reacting the chloro(di-o-trifluoromethylphenyl) phosphine with lithium aluminum hydride to produce (di-o-trifluoromethylphenyl) phosphine;
- and
- reacting a source of sulfur with the (di-o-trifluoromethylphenyl) phosphine to produce (di-o-trifluoromethylphenyl) dithiophosphinic acid.
2 more elements
Dependencies are inferred from the claim text.