Treatment of waste stream from pentaerythritol production

Details Treatment of waste stream from pentaerythritol production Treatment of waste stream from pentaerythritol production

1980-02-25

1982-05-04

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

203 91, 562609, 564462, 564463, 564497, 568853, 568854, C07C 5148, C07C 5306, C07C 2986, C07C 3124

Patent

active

043283667

ABSTRACT:
This invention provides a process for recovery of sodium formate from an aqueous waste stream which is a byproduct mother liquor derived from a reaction system in which pentaerythritol is produced by the reaction of formaldehyde with acetaldehyde in the presence of sodium hydroxide catalyst.
As one of its important features, the invention process involves contacting the mother liquor with a monoalkylamine solvent which is highly selective for extraction of organic materials to the exclusion of sodium formate.

REFERENCES:
patent: 3179704 (1965-04-01), Leonard

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