TH8823A - Recovery of gold, silver and platinum groups with various solvents at low mineral water densities. - Google Patents

Abstract

In separating noble metals including gold Silver and metals among platinum are restored. This will operate for minerals or different minerals. Reacts with different types of leaching agents, namely sodium cyanide, thiourea, chlorine and aqua. Regia and detergents Such as chloride ions, then the resulting slury is diluted to the density of Mineral water is best suited to 0.1 to 10% and left to set in the storage tank for a period of 30 minutes, preferably 15 minutes with the dispersant. You can choose to enter such as sodium acetate, sodium carbonate, trisodium polyphosphate, or sodium hexametaphosphate and swirl this mineral water to remove the solids if needed. A and then pass the column to pH less than 9, where the column contains activated carbon or resin. Ion exchange fibers are included to absorb any kind of precious metal in solution in this liquid, after this, according to the elimination thread, any kind of precious metal adsorption in solution in this liquid. After this, followed by Eliminate the absorption and repeat the cycle as often as guaranteed. By the savings of this method Alternatively, it filters Mineral water and let the filtered liquid pass through this separation technique. Various recovers such as coordination, solvent extraction, electro-sedimentation and sedimentation.

Claims (8)

1. Methods of recovering valuable gold metal from concentrated ore and mineral deposits. By allowing the mineral or mineral to react with the substance Leaching and lixiviant to introduce gold into solution for It consists of slurry, dissolving and subsequent operations of gold separation. Recovered from solution by using this enhancement agent It consists, for example, making this slurry dilution. So that the mineral water density is below 15% solid by weight and after this operation to avoid the stress. The stationary density of mineral water is greater than 15% solids by weight in This gallery until the complete gold separation process has been completed. 2. The method as requested in Clause 1, which the dilution is made after the dissolution layer is complete, and this diluted mineral water is preserved for sufficient time to obtain. The amount of the noble metal in the solution was increased before the start of the separation stage. 3. Method as requested in claim 1 or 2, which dilute this leaching solution to a density of 0.1 to 10% solid mineral water by weight. 4. Method for claiming rights in Clause 1 or 2, in which this lixiviant is chloride ion. 5. Method as requested in Clause 1 or 2, which uses a reagent to increase the amount of metal in the solution. Followed by the leaching step 6. Method according to claim in claim 5, in which this solvent is an organic compound with a short chain stage that Should use methanol or asino 7. Method as requested in Clause 1 or 2 which add dispersant before or after water treatment. Diluted minerals increase the amount of noble metals in the solution. 8. Method according to the claim in Clause 1, which separates gold in The solution recovered from the mineral by leaching at a concentration of mineral water above 10% solids by weight and at the end of the stage. During this leaching dilute mineral water to mineral water density between 0.1% and 10% solids by weight and preserve each substance. Pattern that has been diluted for up to 15 minutes.