Layered tetraalkyl phosphonium clays
AssigneeExxon Research & Engineering Co.
InventorAlexis A. Oswald
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Abstract
Novel layer type clay-like tetraalkyl phosphonium aluminosilicates can be produced by the ion exchange reaction of metal aluminosilicates with phosphonium salts. For example, layered type tetraalkyl phosphonium derivatives of clays are prepared by the reaction of sodium clays with tetraalkyl phosphonium chlorides. The novel compositions have unexpected microstructure, thermal stability, and thixotropic properties in organic liquids.
Claims30
Tetra-alkyl phosphonium clays of the formula
- [R.sub.4 P.sup.+] Clay.sup.-
- wherein the four R groups are C.sub.1 to C.sub.100 substituted aliphatic hydrocarbyl radicals selected in such a manner that at least one of the R groups has a minimum of eight carbon atoms.
High monoalkyl phosphonium clays of the formula
- C.sub.m H.sub.2m.sub.+1 P.sup.+(C.sub.n H.sub.2n.sub.+1).sub.3 Clay.sup.-
- wherein m is 16 to 30, n is 1 to 4 and Clay.sup.- is a negatively charged layered aluminosilicate.
High dialkyl phosponium clays of the formula
- [(C.sub.r H.sub.2r.sub.+1).sub.2 P.sup.+(C.sub.s H.sub.2s.sub.+1).sub.2 ] Clay.sup.-
- wherein r is 8 to 40, s is 1 to 7 and Clay.sup.- is a negatively charged layered aluminosilicate.
A higher dialkyl phosphonium clay composition of the formula
- [(n - C.sub.18 H.sub.37).sub.2 P.sup.+(C.sub.2 H.sub.5).sub.2 ] Montmorillonite.sub.-
High trialkyl phosphonium clays of the formula
- C.sub.k H.sub.2k.sub.+1 P.sup.+(C.sub.j H.sub.2j.sub.+1).sub.3 Clay.sup.-
- wherein j is 6 to 40, k is 1 to 4 and the clay is negatively charged layered aluminosilicate.
A high trialkyl phosphonium clay composition of the formula
- [(n - C.sub.18 H.sub.37).sub.3 P.sup.+C.sub.2 H.sub.5 ] Montmorillonite.sup.-
Unsymmetrical high monoalkyl phosphonium clays of the formula ##STR8## wherein m is 12 to 40, n is 1 to 4 and R'" is a C.sub.1 to C.sub.4 aliphatic hydrocarbyl which is not identical with either of the two C.sub.n H.sub.2n.sub.-1 groups and Clay.sup.- is a negatively charged layered aluminosilicate.
An unsymmetrical high monoalkyl phosphonium clay of the formula ##STR9##
Unsymmetrical high dialkyl phosphonium clays of the formula ##STR10## wherein r is 8 to 40, s is 1 to 7 and R'" is a C.sub.1 to C.sub.4 aliphatic hydrocarbyl which is not identical with C.sub.5 H.sub.2s.sub.+1 and Clay.sup.- is a negatively charged layered aluminosilicate.
An unsymmetrical high dialkyl phosphonium clay of the formula ##STR11##
Allyl high alkyl phosphonium clays of the formula ##STR12## wherein m is 12 to 40, and n is 1 to 4 and Clay.sup.- is a negatively charged layered aluminosilicate.
Allyl high alkyl phosphonium clays of the formula ##STR13## wherein r is 8 to 40, and s is 1 to 4 and Clay.sup.- is a negatively charged layered aluminosilicate.
Allyl high alkyl phosphonium clays of the formula
- [(C.sub.j H.sub.2j.sub.+1).sub.3 P.sup.+CH.sub.2 CH=CH.sub.2 ] Clay.sup.-
- wherein j is 8 to 40 and Clay.sup.- is a negatively charged layered aluminosilicate.
An allyl high monoalkyl phophonium clay of the formula ##STR14##
An allyl high dialkyl phosphonium clay of the formula ##STR15##
Dependencies are inferred from the claim text.