Process for extracting tungsten and molybdenum values from solut

Details Process for extracting tungsten and molybdenum values from solut Process for extracting tungsten and molybdenum values from solut

1980-12-09

1983-05-17

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423DIG14, 4236585, 75101BE, 210684, C01G 3900, C01G 4100

Patent

active

043839800

ABSTRACT:
The instant invention relates to a process for removing tungsten, and/or molybdenum generally, as the tungstate and/or the molybdate anion, from aqueous solutions, e.g. brines by contacting such solutions with a high-surface area oxide selected from the group consisting of manganese and iron oxides, preferably manganese or iron hydrous oxide, whereby tungsten or molybdenum is adsorbed on said high-surface area oxide. The instant process provides selectivity for tungsten as well as molybdenum even though they are present in solutions containing various other materials such as sodium, potassium, calcium, etc. ions. This process is preferably applicable to removal of tungsten from high pH brines such as a brine having a pH of at least 9, for example greater than 10. The oxide adsorbent may be regenerated by contacting with an aqueous solution having a pH higher than the brine from which the tungsten and/or the molybdenum has been removed.

REFERENCES:
patent: 3332737 (1967-07-01), Kraus
patent: 3804945 (1974-04-01), Scott et al.
Meloni et al., "Chemical Absts.", vol. 70, 1969, #120757u.
Amphlett, "Inorganic Ion Exchangers", Elseuier Pub. Co., N.Y., 1964, pp. 84-88, 113.
Moulik et al., Jour. Indians Chem. Soc.", vol. 47, 1970, pp. 149-153.

Affiliated with

Also associated with

Rating

Process for extracting tungsten and molybdenum values from solut does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for extracting tungsten and molybdenum values from solut, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for extracting tungsten and molybdenum values from solut will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1566633