Process for the preparation of trimethylolpropane

Details Process for the preparation of trimethylolpropane Process for the preparation of trimethylolpropane

1984-06-22

1985-04-30

Evans, J. E.

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

Organic compounds

Oxygen containing

C07C 3122, C07C 2938

Patent

active

045145784

ABSTRACT:
Trimethylolpropane is prepared in such a manner that butyraldehyde is metered into a mixture of water, alkaline condensing agent and formaldehyde, which contains less than 0.1 mol of methanol relative to 1 mol of formaldehyde, at temperatures from 15.degree. to 50.degree. C., and after addition of the butyraldehyde the reaction mixture is heated up to 90.degree. C., sufficient water being present in the reaction mixture so that the reaction mixture has a content of trimethylolpropane of 5 to 25% by weight after the reaction.

REFERENCES:
patent: 2135063 (1938-11-01), Walker et al.
patent: 2170624 (1939-08-01), Wyler
patent: 2534191 (1950-12-01), Gryer et al.
patent: 2775622 (1956-12-01), Snow
patent: 3076854 (1963-02-01), Klein
patent: 3504042 (1970-03-01), Shimono et al.
patent: 4122290 (1978-10-01), Immel et al.

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