Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iva metal
Patent
1997-04-24
1998-12-22
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iva metal
423107, 423109, 75420, 75724, 75725, 75961, 23299, C22B 1300, C22B 1700, C22B 1900
Patent
active
058514902
ABSTRACT:
An improved method for the recovery of metal and/or chemical values from an industrial waste stream containing zinc, cadmium, lead and/or iron compounds by heating the waste stream in a reducing atmosphere, treating the resultant fumes in an ammonium chloride solution, separating any undissolved components from the solution, adjusting the pH of the solution, if necessary, to less than about 6.3, displacing undesired metal ions from the solution using zinc metal, treating the solution to remove therefrom zinc compounds, adjusting the pH of the solution to about 6.5 to about 7.0, and further treating the zinc compounds and the undissolved components, as necessary, resulting in the zinc products and the optional iron-carbon feedstock.
REFERENCES:
patent: 1023964 (1912-04-01), Ranson
patent: 2105394 (1938-01-01), Allavana
patent: 2898191 (1959-08-01), Conn et al.
patent: 3515510 (1970-06-01), Winter et al.
patent: 3743501 (1973-07-01), Cusanelli et al.
patent: 3849121 (1974-11-01), Burrows
patent: 3911076 (1975-10-01), Probert et al.
patent: 4507244 (1985-03-01), Von Rappard et al.
patent: 4606765 (1986-08-01), Ferlay
patent: 5208004 (1993-05-01), Myerson
patent: 5464596 (1995-11-01), Myerson
patent: 5571306 (1996-11-01), Myerson et al.
patent: 5582631 (1996-12-01), Myerson et al.
patent: 5667553 (1997-09-01), Keegel, Jr.
patent: 5683488 (1997-11-01), Myerson et al.
Cudahy Micheal W.
Myerson Allan S.
Bos Steven
Metals Recycling Technologies Corp.
LandOfFree
Method for utilizing PH control in the recovery of metal and che does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for utilizing PH control in the recovery of metal and che, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for utilizing PH control in the recovery of metal and che will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2043152