| abstract |
The invention discloses an ionic liquid-based gold leaching agent and a gold leaching method. The described gold leaching agent based on ionic liquid is composed of 1-methyl-3-(4-diacetoxyiodobenzyl) imidazole tetrafluoroborate, ionic liquid and water according to the amount of matter ratio 1:1- The ionic liquid is prepared by mixing in a ratio of 20:20-140, and the ionic liquid is an ionic liquid containing halogen anions or bis-nitrile amide ions. The present invention provides an ionic liquid-based gold leaching method, which includes: 1) preparing the ionic liquid-based gold leaching agent; 2) adding a sample containing precious metals to the leaching gold obtained in step 1). In the agent, stirring well to leaching the precious metal. The gold leaching agent of the invention is environmentally friendly, has good oxidizing property and coordination ability, can leaching precious metals such as gold, palladium, platinum, rhodium, etc., and has high gold leaching speed and high extraction rate. |