Process for removing boric acid from lactams

Details Process for removing boric acid from lactams Process for removing boric acid from lactams

1974-01-07

1976-04-06

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26029386, C07D20116, C01B 3510

Patent

active

039488888

ABSTRACT:
The invention relates to a process for removing boric acid from a lactam which still contains boric acid and has been produced by catalytic rearrangement of oximes wherein an alkali and/or alkaline earth oxide and/or hydroxide is added to said lactam, the resulting mixture is filtered and the lactam is recovered from the filtrate. Not withstanding the high solubility of inorganic salts in lactams the boric acid can substantially be removed.

REFERENCES:
patent: 3145198 (1964-08-01), Morbidelli et al.
patent: 3154539 (1964-10-01), Irnich
patent: 3418314 (1968-12-01), Schwarz et al.
patent: 3600381 (1971-08-01), Yamamoto et al.

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