Alkoxylation process using catalyst of the lanthanum series

Details Alkoxylation process using catalyst of the lanthanum series Alkoxylation process using catalyst of the lanthanum series

1990-03-23

1991-10-22

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568608, 568620, 568 45, 568 55, 568678, 568679, 2604106, 560 43, 560209, 560250, 560105, 560112, 560240, 564399, 564475, 564505, 530217, 530230, 530232, G07C 4103

Patent

active

050597191

ABSTRACT:
Alkylene oxide adducts of organic compounds having active hydrogen atoms are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more C.sub.2 to C.sub.4 vicinal alkylene oxides with an active hydrogen containing reactant comprising one or more compounds having active hydrogen atoms in the presence of a catalytically effective amount of one or more soluble basic compounds of one or more elements of the lanthanum series (atomic numbers 57-71, inclusive). The product alkoxylates are known to be useful, for instance, as nonionic surfactants, wetting and emulsifying agents, solvents, and chemical intermediates. When the process is applied to the preparation of alkylene oxide, particularly ethylene oxide, adducts of alkanols, particularly primary alkanols in the C.sub.6 to C.sub.24 range, the product is a valuable narrow range nonionic surfactant, characterized by relatively narrow distribution of alkylene oxide adducts.

REFERENCES:
patent: 3328467 (1967-06-01), Hamilton
patent: 4528364 (1985-07-01), Prier
patent: 4658065 (1987-04-01), Aoshima et al.

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