Process for the production of methionine
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United States of America Patent
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Apr 8, 2003
Grant Date -
Nov 1, 2001
app pub date -
Feb 13, 2001
filing date -
Feb 15, 2000
priority date (Note) -
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Abstract
A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm.sup.3 /g and a surface area of from 30 to 150 m.sup.2 /g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
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