TH3300B - Production of zinc from ores and minerals of high percentage - Google Patents

Abstract

Separation of zinc from ores containing a high percentage of zinc or minerals. (1) In electrolytic cells (3) with cathode (5), cathode (16) and anode (4), anode (2) cathode and anode. 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 the formation of a high percentage mineral or mineral slurry (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 will precipitate the ionic copper. Add the resulting solution (15) to the cathode portion (16) and conduct electrochemistry to separate the zinc at the cathode (5).

Claims (1)

1. Method for separating zinc from zinc-rich ores in the cells for electrolysis. This cell consists of a cathode portion with a cathode and an anode portion with an anode. The cathode part and the anoke part 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 slurry. Mixtures are placed from 1 to 4 where the resulting solution contains a large amount of soluble zinc, at least partially separated of the mixtures and the resulting slurry, provides a solution that has been exposed to a high percentage of zinc or minerals. This causes the ionic copper to precipitate, add the resulting solution to the cathode portion, and conduct electrochemistry. Separate the zinc at the cathode. 2. The process of claim 1, which includes an additional step, is the addition of zinc-containing minerals. Or high percentage mineral and copper sludge into slurry 3. Process of claim 1, in which PH of the mixture is from 2.5 to 3.5 4. Process of claim 1, where the temperature of the solution From 50 c. To the boiling point of the solution 5. Method of claim 1, with solution temperature from 70 c. To 100 c. 6. Process of claim 1 tooth has a solution temperature from 85 c. To 95 c. C.7. Process of claim No. 1 in which the solution contains Ionic copper, approximately 5 to 25 grams per liter. 8. Method of claim 1, in which almost all ionic copper present in the resulting solution is precipitated in contact with ore containing high percentage of zinc or minerals. 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 No. 1, which add chloride Ions down to form sodium chloride. At a concentration of 200 to 300 grams per liter