Polyaspartic acid as a calcium sulfate and a barium sulfate inhi

Details Polyaspartic acid as a calcium sulfate and a barium sulfate inhi Polyaspartic acid as a calcium sulfate and a barium sulfate inhi

1991-03-19

1992-05-26

Hruskoci, Peter

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

252180, C02F 512

Patent

active

051165139

ABSTRACT:
Polyaspartic acid as a calcium sulfate and barium sulfate inhibitor. Generally all forms of polyaspartic acid can be used. .beta.-polyaspartic acids are preferred.

REFERENCES:
patent: 2761874 (1956-09-01), Bersworth et al.
patent: 4032460 (1977-06-01), Zilch et al.
patent: 4517241 (1985-05-01), Alpert
patent: 4534881 (1985-08-01), Sikes et al.
patent: 4587021 (1986-05-01), Wheeler et al.
patent: 4640793 (1987-02-01), Persinski et al.

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