Organoclay triphase catalysts
24-03-1992 дата публикации
Номер:
US5099054A
Автор: Chi-Li Lin, Thomas J. Pinnavaia
Принадлежит: Michigan State University MSU
Контакты:
Номер заявки: 91-29-6561
Дата заявки: 14-02-1991
In a method of carrying out organic conversions via heterogeneous phase transfer catalysis by contacting immiscible liquid phases containing respective substances capable of interacting, with a solid catalyst to promote the transfer of reactive species from one liquid phase to another, the improvement comprises employing as catalyst a cation exchanged form of a 2:1 layered silicate clay with layer charge densities in the range of above 0.4 to 2.0 containing an onium ion containing one or more alkyl hydrocarbon chains and maintaining the materials in emulsified form by having a sufficient chain length of an alkyl group relative to the charge density of the clay.