Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1989-11-14
1990-12-25
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210729, 210737, 210912, 423 34, 423101, 423140, C02F 154
Patent
active
049800710
ABSTRACT:
Heavy metals can be precipitated from waste water or aqueous reaction solutions containing inorganic and/or organic complexing agents with substituted thiorureas of the general formula R.sub.1 R.sub.2 N-CS-NH-COR.sub.3. N,N-dialkyl-N'-benzoyl thioureas are used with preference, whereby methyl, ethyl, n-propyl or isobutyl groups are used as alkyl substituents.
REFERENCES:
patent: 3994719 (1976-11-01), Corte et al.
patent: 4087359 (1978-05-01), Patron et al.
patent: 4172784 (1979-10-01), Knoree et al.
patent: 4256227 (1981-03-01), Petrovich
patent: 4571265 (1986-02-01), Konig et al.
patent: 4731187 (1988-03-01), Moriya et al.
patent: 4822496 (1989-04-01), Griffiths
Drauz Karlheinz
Koenig Karl-Heinz
Lotter Hermann
Schuster Michael
Degussa - Aktiengesellschaft
Hruskoci Peter
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