Biopolymer filterability improvement by caustic-enzyme treatment

Details Biopolymer filterability improvement by caustic-enzyme treatment Biopolymer filterability improvement by caustic-enzyme treatment

1978-03-13

1979-08-21

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Destruction of hazardous or toxic waste

166246, 252 855D, C12D 1304, E21B 4322

Patent

active

041652576

ABSTRACT:
In an enhanced recovery process involving flooding of subterranean formations with aqueous mixtures of biopolymers, filterability of the biopolymer is synergistically enhanced by treatment with ESPERASE.RTM. enzyme at a pH range of 12.5 to 13.0. The range is narrow and exclusive since pHs as high as 12.1 give poor results. The biopolymer can be any one containing debris which must be reduced by the enzyme.

REFERENCES:
patent: 3964972 (1976-06-01), Patton
patent: 4010071 (1977-03-01), Colegrove
patent: 4119491 (1978-10-01), Wellington

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