Oil well drilling clay conditioner

Details Oil well drilling clay conditioner Oil well drilling clay conditioner

1983-09-22

1985-03-19

Sebastian, Leland A.

Compositions

Leather or fur treating

252 85A, 530500, C09K 702

Patent

active

045058253

ABSTRACT:
A high quality chrome lignosulfonate for use as an oil well drilling additive is produced from molecular weight and/or high carbohydrate containing spent sulfite liquor. The additive is obtained by adding boron prior to the oxidation of the lignosulfonate and complexing with chrome. The use of boron allows the raw material spent sulfite liquor source to be less pure and from a wide variety of wood.

REFERENCES:
patent: 2935473 (1960-05-01), King et al.
patent: 3168511 (1965-02-01), King et al.
patent: 4149900 (1979-04-01), Childs et al.
patent: 4374738 (1983-02-01), Kelley

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