Filtration of wet process superphosphoric acid

Details Filtration of wet process superphosphoric acid Filtration of wet process superphosphoric acid

1983-12-07

1985-10-15

Doll, John

Liquid purification or separation

Processes

Separating

423321R, C01B 2516

Patent

active

045472955

ABSTRACT:
Filtration of wet process superphosphoric acid by vacuum filtration is greatly enhanced by the use of a filter aid having a statistically selected distribution of particle sizes.

REFERENCES:
patent: 3554728 (1971-01-01), Moore et al.
patent: 3632329 (1972-01-01), Tillman et al.
patent: 4083934 (1978-04-01), Jernigan et al.
patent: 4235854 (1980-11-01), Smith et al.
patent: 4238334 (1980-12-01), Halbfoster
patent: 4313919 (1982-02-01), Richards et al.
patent: 4332779 (1982-06-01), Thibodeau et al.
patent: 4443421 (1984-04-01), Hollifield et al.

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