Substituted tetraalkyl phosphonium aluminosilicates
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. Substituted tetraalkyl phosphonium clays such as phosphino-, amino-, cyano- and hydroxy-alkyl derivatives are similarly synthesized. The novel compositions have unexpected microstructure, thermal stability, and thixotropic properties in organic liquids.
Claims27
Tetraalkyl phosphonium clays of the formula:
- [R.sub.4 P.sup.+ ]Clay.sup.-
- wherein the four R groups are C.sub.1 -C.sub.100 aliphatic hydrocarbyl radicals selected in such a manner that at least one of the R groups is substituted.
Tetraalkyl phosphonium clays of the formula:
- {R.sub.x P.sup.+ [QZ].sub.y }Clay.sup.-
- wherein R is a C.sub.1 -C.sub.100 monovalent aliphatic hydrocarbyl radical, Q is a C.sub.1 -C.sub.100 divalent aliphatic hydrocarbyl radical, Z is a heteroatomic radical containing up to 40 carbon atoms and x and y are 1 to 3 providing that x + y equal 4.
Diphenylphosphino substituted tetraalkyl phosphonium clays of the formula:
- ##STR8## wherein R is a C.sub.1 -C.sub.100 monovalent aliphatic hydrocarbyl radical, x and y are 1 to 3, providing that x + y equal 4 and z is 1 to 40.
14-Diphenylphosphinotetradecyl triethyl phosphonium montmorillonite.
Dialkylamino substituted tetraalkyl phosphonium clays of the formula:
- {R.sub.x P.sup.+ [(CH.sub.2).sub.z N(C.sub.q H.sub.2q+1).sub.2 ].sub.y }Clay.sup.-
- wherein R is a C.sub.1 -C.sub.100 monovalent aliphatic hydrocarbyl radical;
- q is 0 to 18;
- x and y are 1 to 3, providing that x plus y equal 4;
- z is 1 to 40.
Bis-dimethylaminopropyl dodecyl isobutyl phosphonium montmorillonite.
Cyano substituted tetraalkyl phosphonium clays of the formula:
- {R.sub.x P.sup.+ [(CH.sub.2).sub.z CN].sub.y }Clay.sup.-
- wherein R is a C.sub.1 -C.sub.100 monovalent aliphatic hydrocarbyl radical;
- x and y are 1 to 3, providing that x plus y are 4;
- z is 1 to 40.
Tris-cyanoethyl dodecyl phosphonium montmorillonite.
Hydroxy substituted tetraalkyl phosphonium clays of the formula:
- {R.sub.x P.sup.+ [(CH.sub.2).sub.z OH].sub.y ]Clay.sup.-
- wherein R is a C.sub.1 -C.sub.100 monovalent aliphatic hydrocarbyl radical;
- x and y are 1 to 3, providing that x plus y are 4;
- z is 1 to 40.
Bis-hydroxypropyl octadecyl isobutyl phosphonium montmorillonite.
Bis-hydroxypropyl docosyl isobutyl phosphonium montmorillonite.
Dependencies are inferred from the claim text.