Process for eliminating 1-carboxy-1-phosphonocyclopentan-3-one f

Details Process for eliminating 1-carboxy-1-phosphonocyclopentan-3-one f Process for eliminating 1-carboxy-1-phosphonocyclopentan-3-one f

1991-03-27

1992-02-25

Gray, Bruce

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

Organic compounds

Phosphorus acids or salts thereof

C07F 938

Patent

active

050915622

ABSTRACT:
The present invention relates to a process for eliminating 1-phosphono-1-carboxycyclopentan-3-one (ketone) from, or reducing its content in, an aqueous solution of 2-phosphonobutane-1,2,4-tricarboxylic acid, characterized in that the solution is adjusted to a pH value of > 6 using an aqueous inorganic base, particularly sodium hydroxide, and aqueous bleaching liquor is subsequently added in a molar ratio of NaOCl to ketone of >5:1.

REFERENCES:
patent: 3886204 (1975-05-01), Geffos et al.
patent: 3886205 (1975-05-01), Geffos et al.
patent: 3923876 (1975-12-01), Heins et al.
patent: 4020101 (1977-04-01), Gettos et al.
patent: 4931586 (1990-06-01), Kleinshuck et al.

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