Defined heat treatment, under acidic conditions, of solutions of

Details Defined heat treatment, under acidic conditions, of solutions of Defined heat treatment, under acidic conditions, of solutions of

1984-08-30

1987-05-19

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

166246, 166273, 166274, 166275, 252 855A, 536123, 536124, C08B 3700, C07H 100, C09K 300, E21B 4322

Patent

active

046670262

ABSTRACT:
Aqueous solutions of polysaccharide biopolymers, e.g., Xanthomonas/carbohydrate fermentation worts, are heat treated for more than 5, but less than 60 minutes, at a pH ranging from 3.5 to 6.2, to improve the viscosifying, filterability and injectability properties thereof, and are well adapted, e.g., for secondary and tertiary hydrocarbon (petroleum) recovery by waterflooding therewith.

REFERENCES:
patent: 3355447 (1967-11-01), O'Connell
patent: 3415927 (1968-12-01), Butensky et al.
patent: 3591578 (1971-07-01), Colin et al.
patent: 4051317 (1977-09-01), Towle
patent: 4182860 (1980-01-01), Naslund et al.
patent: 4296203 (1981-10-01), Wernau
patent: 4299825 (1981-11-01), Lee
patent: 4329448 (1982-05-01), Cox et al.

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