Method for the recovery of pentaerythritol from the residual mix

Details Method for the recovery of pentaerythritol from the residual mix Method for the recovery of pentaerythritol from the residual mix

1982-05-19

1984-03-06

Evans, J. E.

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

Organic compounds

Oxygen containing

549352, 549369, 568672, C07C 3124, C07C 2988

Patent

active

044356048

ABSTRACT:
Method for the recovery of pentaerythritol from a residual mixture of the synthesis from acetaldehyde and formaldehyde, said mixture containing, besides other byproducts, greater amounts of formals, said method being characterized by a transacetalization of said formals, realized by contact of the residual mixture with a saturated aliphatic alcohol having from 1 to 4 carbon atoms.

REFERENCES:
patent: 2533737 (1950-12-01), Mertz
patent: 3076854 (1963-02-01), Klein
patent: 3097245 (1963-07-01), Russell et al.
patent: 4083931 (1978-04-01), Lee
patent: 4105575 (1978-08-01), Eckler

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