Patented technology for gold extraction and recovery
1. Adsorption device for recovering gold from cyanide gold-containing wastewater
2. Cyanide precious liquid carbon fiber electrolysis Gold extraction tank
3. Rapid leaching additional device for percolation, cyanide and gold extraction
4. Direct roasting of gold refractory primary ore to extract gold
5 , A method of extracting gold and silver from refractory gold and silver concentrates
6. A method of analyzing the amount of gold and silver from gold and silver-containing materials
7 , A method for purifying crude gold
8. A biological gold extraction method and special equipment for refractory metallurgical concentrates
9. Improving silver content in sulfur-containing copper-lead gold-silver ores Recovery rate method
10. Liquid film and process for extracting gold from poor gold liquid and waste gold liquid
11. A method for rapid dissolution and purification of crude gold or alloy< /p>
12. Pretreatment method for refractory gold concentrates containing arsenic etc.
13. Method for extracting gold and silver by alkali-sulfur oxygen pressure leaching
14. Two-stage bacteria Oxidation gold extraction method
15. A process for re-extraction of gold from cyanidation gold extraction waste residue
16. Method for preparing high-purity gold by electrolyzing gold-containing extraction organic phase
17. Method for recovering gold from flotation gold concentrate roasted sand waste slurry
18. Method for cyanide-free leaching of gold from gold-containing materials
19. Method for comprehensively recovering gold from iron ore
20. Method for producing gold by reduction of gold-containing chloride liquid
21. A method for reusing poor cyanide gold leaching liquid Gold process
22. A method of cyanide extraction of gold and silver from gold and silver minerals
23. Technical method to improve the recovery rate of silver in the roasting-cyanide gold leaching process< /p>
24. Comprehensive recovery of gold, silver and copper from copper-containing gold concentrates by adding salt and roasting and cyanidation method
25. Process for desorbing electrolytic gold from gold-loaded carbon
26. Enhanced alkali leaching gold extraction process from arsenic- and sulfur-containing refractory gold ores
27. Temperature-controlled oxygen-mixed gas-fired pyrolysis furnace to decompose primary gold ores - cyanidation Gold extraction process
28. Method of extracting gold from refractory gold concentrate
29. Mixed leaching aid cyanide gold leaching technology
30 , Preparations for cyanide extraction of gold from gold-bearing copper-zinc ores
31. Additives for cyanide extraction of gold from gold-bearing ore powder
32. Formulas and rapid methods for purifying gold Wet gold purification method
33. A new process for wet refining of high-purity gold
34. New additives for wet synergistic oxidation and cyanide leaching to extract gold
< p>35. Methods for extracting gold and silver from lead anode mud and recovering antimony, bismuth, copper and lead36. Methods for recovering gold using extraction agents with guanidine functional substances
37. Method for extracting copper, iron, gold, silver, and sulfur from gold and copper ores
38. Method for recovering platinum from ammonia oxidation furnace waste
39. Extraction from alkaline cyanide solution Method of gold
40. Method of using mixed oxidant to extract gold in cyanide leaching
41. A cyanide-free desorption method for gold extraction
42. From Pretreatment methods and special equipment for extracting gold from refractory sulfide ores and carbonaceous ores
43. Methods for extracting gold from refractory ores
44. Refractory independence Method for extracting silver and gold from silver ore flotation silver concentrate
45. A new process for extracting gold from sulfuric acid residue by aqueous chlorine method
46. A process for extracting gold from leach solution< /p>
47. Mercury-free alchemy methods and equipment
48. A simple method of recovering gold from waste materials
49. Recovering silver from lead anode mud, Methods for gold, antimony, copper and lead
50. A production process for extracting gold concentrate from gold-containing cyanide ballast
51. Recovery of gold from waste carbon New process
52. Recovery of gold in tailing slurry
53. Electroforming solution for cyanide-free electroforming K gold products
54. Using bromate Methods for extracting gold by adding bromine
55. Methods for cyanide-free electroforming of K gold products
56. Methods for rapid cyanide extraction in autoclave <
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57. New technology for gold and silver separation by wet gold mud method
58. Purification method of gold for jewelry
59. Leaching and recovery from sulfide copper ore Methods and equipment for copper, silver, gold, lead, iron and sulfur
60. Method for jointly leaching gold and silver using thioglycolic acid (salt) and thiourea
61. An ore dressing process for extracting gold concentrate from gold-containing tailings sand
62. Method for recovering low-concentration gold
63. Grinding and leaching-liquid membrane extraction gold extraction process Method
64. An emulsion liquid membrane method for extracting gold and recovering sodium cyanide
65. Method for recovering gold and palladium from spent catalyst and liquid delivery valve
66. Method for extracting gold and silver using lime sulfur mixture
67. Low-pressure hot acid leaching polyurethane foam method for gold extraction
68. Extraction agent for extracting and separating gold and palladium and its applications
69. Methods for recovering gold from gold mine tailings pond overflow water
70. Recovery of gold, platinum, palladium and tellurium from copper anode mud
< p>71. A non-toxic gold extraction process72. Direct electrolysis of gold extraction process using steel wool from cyanide precious liquid
73. Extraction of nitric acid residue from solder anode mud Methods of silver and gold
74. A method of recovering fine-grained gold from heavy sand
75. A method of synthesizing gold selective adsorption resin and extracting gold
76. Gold and silver separation method
77. A method for refining metallic gold
78. Recovery of gold and silver from refractory gold ores
79. Leaching of gold and silver by chlorine carrier chlorination method
80. Separation of gold and silver from gold mud by ammonia method
81. Process method for recovering gold from low-grade gold ores
82. Method of producing high-purity gold using composite extraction agent
83. Gold recovery method
84. Pretreatment of refractory gold concentrate by catalytic oxidation acid method
85. A new process for extracting gold from silver anode mud
86. A new industrial production process for extracting gold by thiourea iron leaching method
87. Antimony , Gold smelting process
88. Acid leaching polyurethane foam gold extraction method and device
89. Method of extracting gold from gold-containing poor liquid
90 , A method of extracting gold from gold-containing aqua regia
91. Low-temperature sulfurization roasting-ore dressing method to recover copper, gold and silver
92. From refractory gold-containing iron-containing sulfide Process for recovering gold from mineral concentrates
93. Full wet refining process of cyanide gold mud
94. Recovery of gold from refractory gold- and iron-containing sulfide ores< /p>
95. Methods of adsorption and flotation to recover gold