Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2009-11-18
2011-10-11
Puttlitz, Karl J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S590000
Reexamination Certificate
active
08034975
ABSTRACT:
The present invention provides a method of manufacturing a highly pure ammonium succinate solution including the steps of (A) producing calcium succinate trihydrate by crystallization fermentation of a microorganism; (B) converting calcium succinate trihydrate to calcium succinate monohydrate by transition crystallization; (C) separating the calcium succinate monohydrate crystals; (D) substituting the calcium salt in the calcium succinate monohydrate with ammonium salt resulting in an ammonium succinate solution; and (E) removing the solid calcium carbonate from the ammonium succinate solution.
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Fujiwara Kenji
Furuya Seisaku
Kaneko Hiroshi
Koga Masaki
Nishi Kiyohiko
Ajinomoto Co. Inc.
Cermak Shell Guest
Cermak Nakajima LLP
Puttlitz Karl J
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