Pumping of aqueous slurries

Details Pumping of aqueous slurries Pumping of aqueous slurries

1980-01-11

1982-02-23

Michl, Paul R.

Wells

Processes

Cementing, plugging or consolidating

260 296H, 406 49, E21B 3313

Patent

active

043165052

ABSTRACT:
To improve the pumpability of aqueous slurries of mineral dusts, e.g. coal tailings, and cement, there is added a dispersing agent comprising a copolymer of a hydrophilic material and a relatively less hydrophilic material. A preferred dispersing agent is a water-soluble copolymer of polyacrylic acid and polymethacrylic acid.

REFERENCES:
patent: 2775557 (1956-12-01), Morgan
patent: 3312506 (1967-04-01), Baker
patent: 3338320 (1967-08-01), Gilson
patent: 3380947 (1968-04-01), Galgoczi
patent: 3447608 (1969-06-01), Fry
patent: 3838047 (1974-09-01), Le Blanc
patent: 3842013 (1974-10-01), Booth
patent: 3865547 (1975-02-01), Titus
patent: 4169824 (1979-10-01), Kane
patent: 4175066 (1979-11-01), Shibazaki

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