Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1979-02-21
1981-03-03
Brown, Johnnie R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
252 85R, 252315, 426658, 536 18, 424361, 424363, 536114, C08B 3700
Patent
active
042542570
ABSTRACT:
Acidic polysaccharides of the type obtainable by microbial fermentation of an organic material such as a carbohydrate (e.g., xanthan gum) form novel amine salts with aliphatic or alicyclic polyamines having at least three amino nitrogen atoms and a molecular weight of at least 150. The amine salts may be used for isolation of the microbial polysaccharide from its fermentation broth by a process comprising the steps of acidifying, forming the amine salt by adding the amine or a salt thereof, and reducing the inorganic salt concentration as necessary (e.g., by dilution).
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Brown Johnnie R.
Hall Daniel N.
Keller Raymond F.
Pittman William H.
The Lubrizol Corporation
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