Liquid purification or separation – Comminuting
Patent
1996-09-18
1999-08-31
Savage, Matthew O.
Liquid purification or separation
Comminuting
210182, 210223, 210259, 209 3, 209213, 4352901, B01D 3506
Patent
active
059449861
ABSTRACT:
A magnetic separation apparatus which coagulates substances to be removed in liquid by adding magnetic substances and a flocculent to liquid to be treated and adsorbs and captures the thus obtained magnetic aggregates by utilizing magnetic field of magnetic substances which move relative to the liquid to be treated, and other magnetic separation apparatus comprising a magnetic filter which contains charging magnetic metallic elements placed in a magnetic field and which magnetically adsorbs and captures the magnetic aggregates, are appropriately combined to remove the magnetic aggregates from the liquid to be treated with good efficiency. Substances to be removed in liquid can be removed with further good efficiency by employing a method of separating the magnetic aggregates separated by the magnetic filter from liquid with a centrifugal separator.
REFERENCES:
patent: 3630365 (1971-12-01), Woodbridge et al.
patent: 3638590 (1972-02-01), Roberts et al.
patent: 3803033 (1974-04-01), Sutherland
patent: 4124503 (1978-11-01), Watson
patent: 4193866 (1980-03-01), Slusarczuk et al.
patent: 4781298 (1988-11-01), Hemstock et al.
Harland et al, High Gradient Magnetic Filtration, Chemical Engineering Progress, pp. 80-81, Oct. 1976.
Isogami Hisashi
Morita Minoru
Okajima Hiroaki
Saho Norihide
Tsuzuki Koichi
Hitachi , Ltd.
Savage Matthew O.
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