C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/37, 362/56
C02F 1/00 (2006.01) B03C 1/00 (2006.01) B03C 1/015 (2006.01) B03C 1/025 (2006.01) C02F 1/48 (2006.01) C02F 1/52 (2006.01)
Patent
CA 1114080
ABSTRACT A method and an agent for chemical purification of water is pro- vided, especially wastewater 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 aluminium 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.
313985
Boliden Aktiebolag
Fetherstonhaugh & Co.
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