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Alternative methods for dehydrating castor oil
Author(s) -
Grummitt Oliver,
Marsh Dean
Publication year - 1953
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02639914
Subject(s) - castor oil , ricinoleic acid , dehydration , chemistry , maleic anhydride , organic chemistry , conjugated diene , diene , double bond , polymer chemistry , copolymer , polymer , biochemistry , natural rubber
Summary Castor oil can be effectively dehydrated by non‐conjugated oil‐maleic anhydride adducts to give use‐ful paint or yarnish oils. Castor acids dehydrated in the presence of alumina form diene acids of 60% two double bond conjugation. The glyceride from these acids dries more rapidly to a tack‐free film than conventional dehydrated castor oil. In both of these processes the course of dehydration is believed to be the decomposition of esters of the alcohol groups in ricinoleic acid. Acidic ion exchange resins exert some catalytic effect in the dehydration of castor oil, but the oil so made is inferior in color and film properties.