Continuous process for the manufacture of methionine

Details Continuous process for the manufacture of methionine Continuous process for the manufacture of methionine

1976-08-12

1978-01-17

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C149247

Patent

active

040692515

ABSTRACT:
In a continuous process 5-(.beta.-methylmercaptoethyl)-hydantoin is subjected to hydrolysis at an elevated temperature and elevated pressure in an aqueous solution of alkali carbonate or alkali bicarbonate or a mixture of these two compounds. The ammonia and carbon dioxide which form during the hydrolysis are removed and when the hydrolysis is complete the methionine is separated by means of carbon dioxide and the mother liquor is recirculated into the process after replenishing with fresh amounts of said hydantoin.

REFERENCES:
patent: 2557920 (1951-06-01), White
patent: 3668221 (1967-07-01), Shima et al.

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