Process for production of alkylene oxide adducts
AssigneeKao Corporation
InventorsYasuki Ohtawa, Toshihiro Tanaka, Kaoru Ohmae
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Abstract
The present invention relates to a process for producing an alkyleneoxide adduct, including the steps of reacting an aliphatic alcohol containing a hydrocarbon group having 6 to 22 carbon atoms with an alkyleneoxide in the presence of a catalyst to obtain a reaction product containing an alkyleneoxide adduct; and subjecting the reaction product successively to acid treatment and reduction treatment, and an alkyleneoxide adduct having a carbonyl value of 5 μmol/g or less. The alkyleneoxide adduct is useful as a raw material of various anionic surfactants, and the anionic surfactants derived from the alkyleneoxide adduct are free from undesirable coloration.
Claims19
A process for producing an alkyleneoxide adduct, comprising:
- reacting an aliphatic alcohol with an alkyleneoxide in the presence of a catalyst, thereby obtaining a reaction product comprising the alkyleneoxide adduct;
- acid treating the reaction product, and
- reducing the acid treated reaction product,
- wherein the aliphatic alcohol comprises a hydrocarbon group having 6 to 22 carbon atoms, and
- wherein the alkyleneoxide adduct is a compound represented by the formula (1):
- R1O(AO)nH (1),
- wherein
- R1 is a hydrocarbon group having 6 to 22 carbon atoms;
- AO is an alkanediyloxy group having 2 to 4 carbon atoms;
- and
- n is a number from 0.1 to 5.
Dependencies are inferred from the claim text.