C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
195/140
C08B 37/00 (2006.01)
Patent
CA 1087538
Abstract Of The Disclosure Xanthan gum is precipitated from its fermentation broth by adding to the raw broth an effective amount of a specified aluminum salt whereby the pH of the solution is lowered to below 3.5. Thereafter the pH is increased into the range between 3.5 and 4.5. This can result in a reduction of the viscosity of the solution without harming the xanthan. The xanthan gum can be precipitated without greatly diluting the fermentation broth.
283739
Hercules Incorporated
Moffat & Co.
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