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US 8,664,423 B2Granted
Process for the preparation of acylated secondary alcohol alkoxylates and secondary alcohol alkoxylates
AssigneeShell Oil Company
InventorsHarry Van Der Heijden, Renata Helena Van Der Made, Jan Hermen Hendrik Meurs, Quoc An On, Arie Van Zon
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Abstract
A process for the preparation of acylated secondary alcohol alkoxylates and a process for making secondary alcohol alkoxy sulfates comprising the steps of:— preparing secondary alcohol alkoxylates by the afore-mentioned process; and sulfating the secondary alcohol alkoxylates is described.
Claims17
A process for the preparation of acylated secondary alcohol alkoxylates, said process comprising:—
- (i) reacting an internal olefin with a carboxylic acid in the presence of a catalyst composition to form a carboxylic acid ester;
- (ii) reacting said carboxylic acid ester from step (i) with an alkylene oxide reactant, in the presence of a catalytically effective amount of a catalyst composition comprising:
- (a) an alkaline earth metal salt of a carboxylic or hydroxycarboxylic acid or a hydrate of the former;
- (b) an oxy-acid selected from sulphuric acid and ortho-phosphoric acid;
- (c) an alcohol or an ester;
- or products of the reciprocal reactions of (a), (b) and/or (c)
- in order to form an acylated secondary alcohol alkoxylate.
4 more elements
Dependencies are inferred from the claim text.