Recycling techniques in the production of 6-hydroxy-2-naphthoic

Details Recycling techniques in the production of 6-hydroxy-2-naphthoic Recycling techniques in the production of 6-hydroxy-2-naphthoic

1981-07-22

1982-05-11

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5115

Patent

active

043294944

ABSTRACT:
The production of 6-hydroxy-2-naphthoic acid from anhydrous potassium 2-naphthoxide and carbon dioxide is improved by introducing 3-hydroxy-2-naphthoic acid to the initial stages of the process.

REFERENCES:
patent: 1470039 (1925-10-01), Wallach
patent: 1648839 (1927-11-01), Calcott et al.
patent: 1700546 (1929-01-01), Schwenk
patent: 2132356 (1938-10-01), Lecher et al.
patent: 2544881 (1951-03-01), Hodges et al.
patent: 4239913 (1980-12-01), Ueno et al.

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