Enzymatic clarification process for improving the injectivity an

Details Enzymatic clarification process for improving the injectivity an Enzymatic clarification process for improving the injectivity an

1981-10-06

1983-11-22

Shapiro, Nel M.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435274, 435911, C12P 1906, C13L 300, C12R 1645

Patent

active

044169906

ABSTRACT:
Enzymatic treatment, in aqueous dispersion, of a xanthan gum containing bacteria cell residues and microgels, as impurities, by means of Basidiomycete cellulase, the aqueous dispersion having a pH from 3 to 7 and containing at least 0.1 equivalent/liter of at least one salt of alkali or alkaline-earth metal, said treatment being conducted at a temperature from 25.degree. to 65.degree. C., improved the injectivity and filtrability thereof.

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patent: 4094739 (1978-06-01), Schroeck
patent: 4119491 (1978-10-01), Wellington
patent: 4299825 (1981-10-01), Lee
patent: 4326037 (1982-04-01), Griffith et al.
Barras et al., Advances in Chemistry Series, ACS Publication (1969), pp. 103-133.
Kohler et al., Society of Petroleum Engineers & Aime, SPE 7425 (1978), 7 pages.
Lipton, Society & Petroleum Engineers of AIME, SPE 5099 (1974), 16 pages.
Reese et al., Canadian Journal of Microbiology, vol. 5, (1959), pp. 173-185.
Rinaudo et al., Int. J. Biol. Macromol, Feb. 1980, vol. 2, pp. 45-48.

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