C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/43 (2006.01) C12P 7/46 (2006.01) C12P 13/00 (2006.01)
Patent
CA 2734617
Processes for making SA from either a clarified DAS-containing fermentation broth or a clarified MAS-containing fermentation broth that include distilling the broth under super atmospheric pressure at a temperature of > 100°C to about 300°C to form an overhead that comprises water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt% water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; and separating the solid portion from the liquid portion. A method also reduces the broth distillation temperature and pressure by adding an ammonia separating and/or water azeotroping solvent to the broth.
Albin Brooke A.
Clinton Nye A.
Dombek Bernard D.
Dunuwila Dilum
Fruchey Olan S.
Bioamber S.a.s.
Goudreau Gage Dubuc
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