Method and an agent for chemical purification of water by means

Details Method and an agent for chemical purification of water by means Method and an agent for chemical purification of water by means

1979-05-31

1981-10-13

Granger, Theodore A.

Liquid purification or separation

Processes

Using magnetic force

210716, 210723, B01D 3506

Patent

active

042947057

ABSTRACT:
A method and an agent for chemical purification of water is provided, especially waste water with subsequent magnetic sludge separation. A precipitation agent comprising as component aluminium sulphate and/or iron sulphate is used together with a magnetic material for the purification. In order to provide uniform distribution of the magnetic material in the agent composition it is added to the aluminum and/or iron sulphate component of the composition when said component is in the form of a melt or solution prior to crystallization of said composition.

REFERENCES:
patent: 3567026 (1971-03-01), Kolm
patent: 3697420 (1972-10-01), Blaisdell
patent: 3912634 (1975-10-01), Howell
patent: 3983033 (1976-09-01), de Latour
patent: 4089779 (1978-05-01), Neal
patent: 4108767 (1978-08-01), Cooper
patent: 4193866 (1980-03-01), Slusglczuk et al.
Chemical Abstracts, 61: 15837e.
Chemical Abstracts, 73: 38992v.
Teknisk Tidskrift, 106 (1976):9, (1 page) "Magnetisk rening sjoar och vattendrag fran", flottar.

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