Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1981-01-12
1983-05-10
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562603, C07C 5143
Patent
active
043831214
ABSTRACT:
A mixture containing monochloroacetic acid and dichloroacetic acid as the main components are admixed with 5-25% by weight of water on the basis of sum total of monochloroacetic acid, dichloroacetic acid and water, and subjected to adiabatic cooling under a pressure of 133 to 2,660 Pa, whereby monochloroacetic acid is crystallized with a high purity.
REFERENCES:
patent: 2539238 (1951-01-01), Eaker
patent: 2809214 (1957-10-01), Haimsohn
patent: 3365493 (1968-01-01), Line
Miwa Koji
Morita Minoru
Nakamaru Kazuto
Sugamiya Ryoji
Takegami Keizo
Shippen Michael L.
Tsukishima Kaikai Co., Ltd.
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