Process for electrowinning metal from metal bearing solutions

Details Process for electrowinning metal from metal bearing solutions Process for electrowinning metal from metal bearing solutions

1977-05-04

1979-02-27

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204106, 204108, 204277, C25C 112, C25C 122, C25D 2110

Patent

active

041418042

ABSTRACT:
A process and an apparatus for electrowinning metal from metal bearing solutions is disclosed. A support solution containing a predetermined metal concentration is continuously recirculated through a cell having a porous grid supporting a bed of particulate conducting particles at a sufficiently high flow rate so as to fluidize and expand the bed by 5 to 25%. A gas is continuously fed through the bed of conducting particles so as to strongly agitate the particles at low bed expansion to maintain good mixing and uniform fluidization of the bed of particles. The cell includes an electrode arrangement suspended from the top of the cell and immersed into the bed of fluidized conducting particles. Such electrode arrangement consists of at least one cathode feeder electrode in physical contact with the fluidized particles to make the particles cathodic and so cause the metal ions to deposit on the particles, and at least one anode electrode separated from the cathodic particles by a membrane which allows the free passage of ions while preventing physical contact with the particles. To make the process continuous or semi-continuous, the cell has an inlet for adding small seed particles and an outlet adjacent to the bottom for withdrawing large product particles.

REFERENCES:
patent: 3654098 (1972-04-01), Backhurst et al.
patent: 3703446 (1972-11-01), Haycock et al.
patent: 3787293 (1974-01-01), Kametani
patent: 3941669 (1976-03-01), Bharucha et al.
patent: 3956086 (1976-05-01), Wilkinson et al.

Affiliated with

Also associated with

Rating

Process for electrowinning metal from metal bearing solutions 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 electrowinning metal from metal bearing solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for electrowinning metal from metal bearing solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-721602