1. Adsorption device for recovering gold from cyanide wastewater containing gold
2. Gold extraction tank for electro-deposition of carbon fiber in cyanide solution
3. An additional device for rapid leaching of gold by percolation cyanidation.
4. Direct roasting process for extracting gold from refractory primary gold ore.
5. A method for extracting gold and silver from refractory gold and silver concentrate.
6. A method for analyzing the content of gold and silver in materials containing gold and silver.
7. A method for purifying crude gold
8. A biological gold extraction method and special equipment for refractory metallurgical concentrate.
9, improve the recovery rate of silver in sulfur-bearing copper, lead, gold and silver ore method
10, liquid membrane and method for extracting gold from poor gold solution and waste gold solution.
1 1, a rapid dissolution and purification method for crude gold or alloy.
Pretreatment method of refractory gold concentrate containing arsenic 12.
13, method of extracting gold and silver by alkaline sulfur-oxygen pressure leaching
14, gold extraction by two-stage bacterial oxidation
15, the technological method of extracting gold from cyanide waste residue.
16. Method for preparing high-purity gold by electrolytic extraction of organic phase of gold.
17. Method of recovering gold from waste pulp of roasted gold concentrate.
18, cyanide-free leaching method of gold in gold-bearing materials
19, Method of Comprehensive Recovery of Gold from Iron Ore
20, gold chloride solution reduction method to prepare gold.
2 1. gold extraction process by recycling cyanide lean solution.
22. A method for cyanide extraction of gold and silver from gold and silver minerals.
23. Technical methods to improve the recovery rate of silver in roasting-cyanidation gold leaching process.
24. Comprehensive recovery of gold, silver and copper from copper-bearing gold concentrate by salt roasting-cyanidation method.
25. Desorption of electrolytic gold from gold-loaded carbon process.
26. Enhanced alkaline leaching process of refractory gold ore containing arsenic and sulfur.
27. Decomposing primary gold ore by temperature-controlled oxygen-doped gas pyrolysis furnace-cyaniding gold extraction process.
28, the method of extracting gold from refractory gold concentrate
29, mixed leaching aid cyanide leaching technology of gold
30. Preparation of cyanide extraction of gold from gold-bearing copper-zinc ore
3 1, additive for cyanide extraction of gold from gold ore powder
32. Formula for purifying gold and its rapid wet method for purifying gold.
33, wet refining high purity gold new process.
34. A new auxiliary agent for leaching gold by wet-process synergistic oxidation cyanidation.
35. Method for extracting gold and silver from lead anode mud and recovering antimony, bismuth, copper and lead.
36. Method for recovering gold with guanidine extractant.
37. Methods for extracting copper, iron, gold, silver and sulfur from gold and copper ores.
38, ammonia oxidation furnace waste platinum recovery method
39, the method of extracting gold from alkaline cyanide solution
40. Cyanide leaching method for extracting gold with mixed oxidants.
4 1, a cyanide-free desorption method for extracting gold
42. Pretreatment method and special equipment for extracting gold from refractory sulfide ore and carbonaceous ore.
43, the method of extracting gold from refractory ore
44, refractory independent silver ore flotation silver concentrate extraction method of silver and gold
45. A new process for extracting gold from sulfuric acid residue by hydrochlorination.
46. A method for extracting gold from leaching solution.
47, mercury-free gold method and equipment
48. A simple way to recover gold from waste.
49. Methods of recovering silver, gold, antimony, copper and lead from lead anode slime.
50. A production process for extracting gold concentrate from gold-bearing cyanide residue.
5 1, a new process for recovering gold from waste carbon
52. Recovering gold from tailings slurry.
53, cyanide-free electroforming gold products electroforming solution
54, the method of extracting gold with bromate and bromide.
55. Cyanide-free electroforming of K gold products
56. High-pressure autoclave rapid cyanide gold extraction method
57, gold mud all wet gold and silver separation process.
58, jewelry gold purification method
59. Methods and equipment for recovering copper, silver, gold, lead, iron and sulfur from copper sulfide ores by leaching.
60, with thioglycolic acid (salt) and thiourea combined leaching method of gold and silver.
6 1. A mineral processing technology for extracting gold concentrate from gold-bearing tailings.
62, low concentration of gold recovery method
63, grinding while leaching-liquid membrane extraction process of gold
64. A process for recovering sodium cyanide by extracting gold with emulsion liquid membrane.
65. Method for recovering gold and palladium from spent catalyst and liquid transfer valve.
66. Method of extracting gold and silver with stone sulfur mixture
67, low pressure hot acid leaching polyurethane foam gold extraction method
68. Extractant for extracting and separating gold and palladium and its application.
69, from the gold mine tailings overflow water recovery method of gold
70. Recovery of gold, platinum, palladium and tellurium from copper anode slime.
7 1, non-toxic gold extraction process
72, cyanide solution with steel wool direct electrolytic gold extraction process.
73. A method for extracting silver and gold from nitric acid residue of solder anode mud.
74. A method for recovering fine gold from heavy sand.
75, gold selective adsorption resin synthesis and extraction method of gold
76, gold, silver separation method
77. A method for extracting metallic gold.
78. Recovery of gold and silver from refractory gold mines.
79. Chlorination leaching of gold and silver with chlorine carrier.
80, ammonia separation of gold and silver in gold mud.
8 1. Process for recovering gold from low-grade gold ore
82. Method for producing high-purity gold with composite extractant
83, gold recovery method
84, refractory gold concentrate catalytic oxidation acid pretreatment
85. A new process for extracting gold from silver anode mud.
86, thiourea iron leaching gold industrial production process.
87, antimony, gold smelting process
88, acid leaching polyurethane foam gold extraction method and device.
89. Method of extracting gold from gold-bearing lean solution.
90. A method for extracting gold from aqua regia containing gold.
9 1, Recovery of Copper, Gold and Silver by Low Temperature Sulfide Roasting-Mineral Processing
92. Process of recovering gold from refractory gold-bearing iron sulfide concentrate.
93, cyanide gold mud wet refining process
94. Recover gold from refractory sulfide ore containing gold and iron.
95, adsorption, flotation recovery method of gold