Process for the production of calcium formate

Details Process for the production of calcium formate Process for the production of calcium formate

1992-03-24

1993-09-28

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5306

Patent

active

052488187

ABSTRACT:
Calcium formate is produced in aqueous phase by reaction of calcium hydroxide with formaldehyde in the presence of hydrogen peroxide or by reaction of calcium peroxide with formaldehyde. The molar ratio of CaO or Ca(OH).sub.2 to H.sub.2 CO to H.sub.2 O.sub.2 is 1 to 2 to 1-1.2 and the molar ratio of CaO.sub.2 to H.sub.2 CO is 1 to 2. Calcium formate is obtained in an almost substantially quantitative yield and in highly pure form. The process avoids the disadvantages of prior processes for the production of calcium formate from calcium hydroxide and formaldehyde.

REFERENCES:
patent: 3864369 (1975-02-01), Isa et al.
patent: 4549025 (1985-10-01), Dalcanale et al.
Soviet Inventions Illustrated, Week 8943, Dec. 1989, Derwent Publications Ltd., AN 89-315554 and SU-A-1474157 (English abstract) (mentioned on p. 3, line 20-p. 4, line 19).
"Calcium", Part B, No. 28, Verlag Chemie GmbH, pp. 160-162 (mentioned on p. 2, lines 9-12 of the present application) 1956.

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