Method of inhibiting barium sulfate and strontium sulfate scale

Details Method of inhibiting barium sulfate and strontium sulfate scale Method of inhibiting barium sulfate and strontium sulfate scale

Filed on

1994-09-30

Date issued

1996-01-23

Examiner

Hruskoci, Peter A.

Patent Class

Liquid purification or separation

SubClass

Processes

SubSubClass

Ion exchange or selective sorption

Other Related Categories

210698, 210700, C02F 510

Type

Patent

Status

active

Patent number

054862949

Description

ABSTRACT:
Disclosed is a method of inhibiting the formation of scales such as barium and strontium sulfate in low pH aqueous system. The method involves treating the aqueous system with a scale control treatment including polyepoxysuccinic acid. Typical low pH aqueous systems where the present invention is particularly useful are oilfield produced water, resin bed water softeners during acid regeneration operations.

REFERENCES:
patent: 4287072 (1981-09-01), Beecher
patent: 4664811 (1987-05-01), Operhofer
patent: 5062962 (1991-11-01), Brown et al.
patent: 5112496 (1992-05-01), Dhawan et al.
patent: 5147555 (1992-09-01), Brown et al.
patent: 5248438 (1993-09-01), Perez
patent: 5368740 (1994-11-01), Zidovec et al.

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