TH3758A - Production of zinc from a high percentage of ores and minerals - Google Patents

Abstract

Separation of zinc from ores containing a high percentage of zinc or minerals (1) In the electrolytic cell (3) with cathode (5), cathode (16) and anode (4), there is anode part (2) cathode and anode part. The selected membrane allows the ions to pass through (6) between the two sections. This membrane is able to prevent the transfer of ionic copper from the anode part (2) to the cathode part (16). This process includes slurry formation of a high percentage mineral or mineral (1 ) As for the anode (2) with chloride and a solution containing copper ions, oxygen-containing gas (7) is mixed with that slurry. To mix well, keep most mixtures at atmospheric pressure and at temperature up to the boiling point of solution, and keep pH of mixtures from 1 to 4. The resulting solution contains a high amount of soluble zinc. Separate at least part of the mixture and separate the resulting solution (12), expose the resulting solution (12) to a high percentage of zinc or mineral (1), which causes ionic copper to precipitate. Add the resulting solution (15) to the cathode part (16) and conduct electrochemistry to separate the zinc at the cathode (5).

Claims (1)

1. A method for separating zinc from zinc-rich ores in a cell for electrolysis. This cell consists of a cathode portion with a cathode and an anode portion with an anode. The cathode and the anoke have a membrane. Which allows certain ions to pass through the barrier This membrane is characterized by being able to prevent the transfer of ionic copper from the anode portion to the cathode. This process includes the formation of a high percentage mineral or mineral slurry with a solution containing chloride ions and copers. The ions in the anode part, give the oxygen-containing gas mixed with the slurry, maintain most of this mixture at atmospheric pressure and at temperature up to the boiling point of that solution and maintain the pH of the anode. Mixture is placed from 1 to 4 where the resulting solution contains a large amount of soluble zinc.Split at least part of the mixture and separate the resulting solution, providing a solution that has been exposed to a high percentage of zinc or mineral. This causes the ionic copper to precipitate, add the resulting solution to the cathode portion, and conduct electrochemistry. Extract the zinc at the cathode. 2. The process of claim 1, which consists of an additional step, is the addition of zinc-containing minerals. Or high percent mineral and copper sludge into slurry 3. Process of claim 1, where PH of the mixture is from 2.5 to 3.5 4. Process of claim No. 1 where the solution temperature From 50 c. To the boiling point of the solution 5. Method of claim 1, with solution temperature from 70 cu. To 100 c. 6. process of claim 1 tooth has a solution temperature from 85 cu. To 95c. C.7. Process of claim 1 in which the solution contains 5 to 25 grams of ionic copper per liter 8. Method of claim 1 in which most of the ionic copper present in the resulting solution is precipitated in contact with a high percentage of zinc or mineral deposits 9. Clause 8 Clause 8, where zinc-containing ores are zinc sulfide 1 0. Process of claim No. 9 in which zinc sulphide ores contain copper sulphide 1 1. Process of claim 1, which is added chloride Ions down to form sodium chloride. At a concentration of 200 to 300 grams per liter