Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Reexamination Certificate
2007-08-14
2007-08-14
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
C210S727000, C210S729000, C210S912000, C423S055000
Reexamination Certificate
active
10478501
ABSTRACT:
Process for selectively removing molybdenum from liquid mixtures containing it, in a quantity greater than (200) mg/l, together with vanadium characterized in that it comprises the following steps: bringing the liquid mixture to a pH of less than (3); adding a solution of an alkaline xanthate to the solution so that the molar ratio molybdenum/alkaline xanthate ranges from (¼) to (⅛), maintaining the pH constant by means of the addition of an inorganic acid; stirring the mixture causing the precipitation of the molybdenum present in the mixture.
REFERENCES:
patent: 3607008 (1971-09-01), Kim et al.
patent: 3912623 (1975-10-01), Buza et al.
patent: 4051316 (1977-09-01), Wing et al.
patent: 4444733 (1984-04-01), Laferty et al.
patent: 4605518 (1986-08-01), Crozier
patent: 5320759 (1994-06-01), Coltrinari
patent: 5505857 (1996-04-01), Misra et al.
patent: 5660735 (1997-08-01), Coltrinari et al.
patent: 258 573 (1988-07-01), None
patent: 273 932 (1977-09-01), None
Database WPI Section Ch, Week 197812 Derwent Publications Ltd., London, GB; Class M25, AN 1978-23073A XP002223610 & SU 273 932 A (Moscow Steel Alloys Inst), Sep. 20, 1977 abstract.
Panariti Nicoletta
Sentimenti Emilio
ENI S.p.A.
Enitecnologie S.p.A.
Hruskoci Peter A.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Snamprogetti S.p.A.
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