Use of barium and/or strontium sulphide to remove heavy metals i

Details Use of barium and/or strontium sulphide to remove heavy metals i Use of barium and/or strontium sulphide to remove heavy metals i

1995-12-27

1998-08-18

McCarthy, Neil

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210912, 210913, 210914, C02F 162

Patent

active

057954860

ABSTRACT:
The invention relates to the use of barium sulphide or strontium sulphide for the removal of heavy metals in industrial acidic solutions.
The invention is applicable to the purification of contaminated acids, in particular of spent battery acid, or of industrial solutions of titanyl sulphate.

REFERENCES:
patent: 3740331 (1973-06-01), Anderson et al.
patent: 4102784 (1978-07-01), Schlauch
patent: 4329224 (1982-05-01), Kim
patent: 4422943 (1983-12-01), Fender et al.
patent: 4432880 (1984-02-01), Talbot
patent: 4814091 (1989-03-01), Napier et al.
patent: 4861493 (1989-08-01), Jansen
patent: 5035807 (1991-07-01), Maree
patent: 5338460 (1994-08-01), Yen

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