Aminated sulfonated or sulfomethylated lignins as cement fluid l

Details Aminated sulfonated or sulfomethylated lignins as cement fluid l Aminated sulfonated or sulfomethylated lignins as cement fluid l

1989-02-21

1991-02-05

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106726, C04B 2412, C04B 2418

Patent

active

049901915

ABSTRACT:
A hydraulic cement slurry is disclosed which has low fluid loss properties. In addition to water and hydraulic cement, the hydraulic cement slurry contains a fluid loss control additive comprising a sulfonated or sulfomethylated kraft lignin that has been aminated by reacting it with a polyamine and an aldehyde. The slurry also contains sodium carbonate, sodium phosphate, sodium sulfite, sodium metasilicate or naphthalene sulfonate.

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patent: 4775744 (1988-10-01), Schilling et al.

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