Process for continuous production of full esters of polyols
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United States of America Patent
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Jan 13, 1981
Grant Date -
N/A
app pub date -
Jun 18, 1979
filing date -
Jun 22, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Full esters of polyols selected from pentaerythritol and polypentaerythritols are continuously produced by (i) continuously introducing a solution of the polyols in pyridine bases, olefins having at least 4 carbon atoms in an amount of at least 0.4 equivalent per 1.0 equivalent of the hydroxyl group in the polyols, a catalyst containing cobalt carbonyls and pyridine bases, and carbon monoxide, into a reaction zone from one end thereof in such an amount of the pyridine bases as is within the range of from 40 to 70% by weight based on the total amount of the pyridine bases, the polyols and the olefins; (ii) introducing an additional amount of the olefins into at least one middle portion of the reaction zone, and; (iii) continuously withdrawing the resultant reaction mixture from the other end of the reaction zone.
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