CN105063351B - A method for selectively separating copper-rhenium from complex molybdenum concentrates - Google Patents
A method for selectively separating copper-rhenium from complex molybdenum concentrates Download PDFInfo
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 79
- 239000011733 molybdenum Substances 0.000 title claims abstract description 79
- 239000012141 concentrate Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- TYYOGQJRDAYPNI-UHFFFAOYSA-N [Re].[Cu] Chemical compound [Re].[Cu] TYYOGQJRDAYPNI-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 238000002386 leaching Methods 0.000 claims abstract description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 38
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000000605 extraction Methods 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 7
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 7
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims abstract description 7
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 7
- 235000018660 ammonium molybdate Nutrition 0.000 claims abstract description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 6
- HRLYFPKUYKFYJE-UHFFFAOYSA-N tetraoxorhenate(2-) Chemical compound [O-][Re]([O-])(=O)=O HRLYFPKUYKFYJE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 5
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 238000004090 dissolution Methods 0.000 claims abstract description 3
- 239000002893 slag Substances 0.000 claims description 13
- 229910052961 molybdenite Inorganic materials 0.000 claims description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012074 organic phase Substances 0.000 claims description 4
- 150000003512 tertiary amines Chemical class 0.000 claims description 4
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052951 chalcopyrite Inorganic materials 0.000 claims description 3
- 238000005363 electrowinning Methods 0.000 claims description 3
- USBWXQYIYZPMMN-UHFFFAOYSA-N rhenium;heptasulfide Chemical compound [S-2].[S-2].[S-2].[S-2].[S-2].[S-2].[S-2].[Re].[Re] USBWXQYIYZPMMN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000003570 air Substances 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- YUSUJSHEOICGOO-UHFFFAOYSA-N molybdenum rhenium Chemical compound [Mo].[Mo].[Re].[Re].[Re] YUSUJSHEOICGOO-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- VSOYJNRFGMJBAV-UHFFFAOYSA-N N.[Mo+4] Chemical compound N.[Mo+4] VSOYJNRFGMJBAV-UHFFFAOYSA-N 0.000 claims 1
- VGPBPWRBXBKGRE-UHFFFAOYSA-N n-(oxomethylidene)hydroxylamine Chemical compound ON=C=O VGPBPWRBXBKGRE-UHFFFAOYSA-N 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 230000009977 dual effect Effects 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 description 9
- GECRDIMVVWFRNV-UHFFFAOYSA-N [Cu].[Mo].[Re] Chemical compound [Cu].[Mo].[Re] GECRDIMVVWFRNV-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- -1 hydroxyketoxime Chemical compound 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- LWKYWSOIKNOSRB-UHFFFAOYSA-N [Mo].[Pb].[Zn] Chemical compound [Mo].[Pb].[Zn] LWKYWSOIKNOSRB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
Description
技术领域technical field
本发明涉及铜钼铼的湿法冶金领域，具体地说，涉及一种从复杂钼精矿中选择性分离铜铼的方法。The invention relates to the field of copper-molybdenum-rhenium hydrometallurgy, in particular to a method for selectively separating copper-rhenium from complex molybdenum concentrates.
背景技术Background technique
钼是一种非常重要的稀有金属，因其具有良好的导热、导电、耐高温、耐磨、耐腐蚀等特性，被广泛用于钢铁、化工、电子、航空航天、生物医药、农业及国防建设等领域。Molybdenum is a very important rare metal, because of its good thermal conductivity, electrical conductivity, high temperature resistance, wear resistance, corrosion resistance and other characteristics, it is widely used in steel, chemical industry, electronics, aerospace, biomedicine, agriculture and national defense construction and other fields.
随着我国钼产量和消费量增加，钼的开发利用品位越来越低，矿物复杂程度越来越高，特别是2007年原生钼矿被国家列为限制性开采类矿产资源以来，低品位复杂伴生钼矿的开发利用成为热点，近年来出现了大量钼、铜、铼、铅、锌等金属伴生的矿，如德兴铜钼铼矿、云南驰宏内蒙钼铅锌伴生矿、中国黄金内蒙铜钼铼伴生矿、中铝秘鲁Toromocho铜钼矿等。对于此类资源，通过选矿产出的钼精矿属于钼铜铼等多金属伴生，一是影响钼精矿中钼的品位，另外对外销售时铜铼不仅不计价，甚至铜过高还有会罚款。选择性脱除铜铼等金属而不改变辉钼矿的结构，从而实现提高钼品位并回收铜铼有价金属的双重目标，对钼矿山具有较好的经济效益。With the increase of molybdenum production and consumption in my country, the development and utilization grade of molybdenum is getting lower and lower, and the mineral complexity is getting higher and higher. The development and utilization of associated molybdenum ores has become a hot spot. In recent years, a large number of associated ores of molybdenum, copper, rhenium, lead, zinc and other metals have appeared, such as Dexing copper-molybdenum-rhenium mine, Yunnan Chihong Inner Mongolia molybdenum-lead-zinc associated mine, China Gold Inner Mongolia Copper-molybdenum-rhenium associated ore, Chinalco Toromocho copper-molybdenum mine in Peru, etc. For such resources, the molybdenum concentrate produced through mineral processing is associated with multiple metals such as molybdenum, copper and rhenium. First, it will affect the grade of molybdenum in the molybdenum concentrate. fine. Selectively remove metals such as copper and rhenium without changing the structure of molybdenite, so as to achieve the dual goals of improving the grade of molybdenum and recovering valuable metals of copper and rhenium, which has good economic benefits for molybdenum mines.
发明内容Contents of the invention
本发明的目的在于，提供一种从复杂钼精矿中选择性分离铜铼的方法，实现提高钼品位并回收铜铼等有价金属的双重目标。本发明的目的是通过以下技术方案实现的。The object of the present invention is to provide a method for selectively separating copper and rhenium from complex molybdenum concentrates, so as to achieve the dual goals of improving the grade of molybdenum and recovering valuable metals such as copper and rhenium. The purpose of the present invention is achieved through the following technical solutions.
一种从复杂钼精矿中选择性分离铜铼的方法，其过程依次为：A method for selectively separating copper-rhenium from complex molybdenum concentrates, the process of which is as follows:
(1)将所述钼精矿细磨；(1) finely grinding the molybdenum concentrate;
(2)将步骤(1)细磨后的复杂钼精矿进行常压活化浸出，在混酸体系下，通入氧化性气体，在浸出pH<2，温度70～100℃，液固比2～15:1，浸出时间0.5～6h的条件下，选择性溶解黄铜矿和硫化铼，获得含铜、铼等有价金属的浸出液和含辉钼矿浸出渣，实现钼与铜铼的分离，铜、铼进入浸出液，钼在浸出渣中富集；(2) The finely ground complex molybdenum concentrate in step (1) is subjected to normal pressure activation leaching, under the mixed acid system, the oxidizing gas is introduced, and the leaching pH is <2, the temperature is 70-100°C, and the liquid-solid ratio is 2-2. 15:1, leaching time 0.5~6h, selectively dissolve chalcopyrite and rhenium sulfide, obtain leaching solution containing valuable metals such as copper and rhenium and leaching slag containing molybdenite, and realize the separation of molybdenum and copper rhenium. Copper and rhenium enter the leaching solution, and molybdenum is enriched in the leaching residue;
(3)步骤(2)中的浸出液采用分步萃取法回收铼、钼和铜，首先采用专属萃取剂萃取铜，反萃液通过电积生产阴极铜；萃铜后液萃取铼，反萃生产铼酸铵；萃铼后的萃余液萃取钼，反萃生产钼酸铵；(3) The leaching solution in step (2) adopts a step-by-step extraction method to recover rhenium, molybdenum and copper. First, copper is extracted with a dedicated extractant, and the stripping solution is used to produce cathode copper by electrowinning; Ammonium rhenate; molybdenum is extracted from the raffinate after rhenium extraction, and ammonium molybdate is produced by back extraction;
(4)步骤(2)中的浸出渣经洗涤后成为纯度较高的钼精矿，钼品位大于47％，用于销售或生产钼产品。(4) The leaching slag in step (2) becomes molybdenum concentrate with higher purity after being washed, and the molybdenum grade is greater than 47%, which is used for sales or production of molybdenum products.
进一步地，所述复杂钼精矿，是含铼、铜的多金属、低品位钼精矿，钼品位为5～45％。Further, the complex molybdenum concentrate is polymetallic and low-grade molybdenum concentrate containing rhenium and copper, and the molybdenum grade is 5-45%.
进一步地，步骤(2)中所述氧化性气体为氯气、氧气、空气中的一种或几种。Further, the oxidizing gas in step (2) is one or more of chlorine, oxygen, and air.
进一步地，步骤(2)中混酸体系为硫酸、硝酸、盐酸、有机酸中的两种及以上构成。Further, the mixed acid system in step (2) is composed of two or more of sulfuric acid, nitric acid, hydrochloric acid, and organic acids.
进一步地，步骤(2)中所述浸出pH<2。Further, the leaching pH in step (2) is <2.
进一步地，步骤(2)中所述浸出温度为80～100℃。Further, the leaching temperature in step (2) is 80-100°C.
进一步地，步骤(2)中所述浸出液固比为2～10:1。Further, the leaching liquid-solid ratio in step (2) is 2-10:1.
进一步地，步骤(2)中所述浸出时间为0.5～5h。Further, the leaching time in step (2) is 0.5-5 hours.
进一步地，步骤(2)中铜的浸出率在95％以上，铼的浸出率在95％以上。Further, in step (2), the leaching rate of copper is above 95%, and the leaching rate of rhenium is above 95%.
进一步地，步骤(2)中的钼氧化程度较低，氧化溶解率在5％以下。渣中钼仍以辉钼矿形态存在且结构未发生变化，洗涤后成为纯度较高的合格钼精矿，钼含量47％以上。Further, the oxidation degree of molybdenum in step (2) is relatively low, and the oxidation dissolution rate is below 5%. The molybdenum in the slag still exists in the form of molybdenite and the structure has not changed. After washing, it becomes a qualified molybdenum concentrate with a high purity and a molybdenum content of more than 47%.
进一步地，步骤(3)中钼铼的萃取剂为叔胺萃取剂，负荷有机相采用氨水反萃，反萃液用于生产铼酸铵和钼酸铵。Further, the extractant of molybdenum-rhenium in step (3) is a tertiary amine extractant, the loaded organic phase is back-extracted with ammonia water, and the back-extraction solution is used to produce ammonium rhenate and ammonium molybdate.
进一步地，步骤(3)中铜的萃取剂包括：羟酮肟萃取剂、喹啉萃取剂、叔胺类萃取剂等，负荷有机相经洗涤-反萃后，反萃液用于生产阴极铜。Further, the extractant of copper in step (3) includes: hydroxyketoxime extractant, quinoline extractant, tertiary amine extractant, etc., after the loaded organic phase is washed-back-extracted, the stripping solution is used to produce cathode copper .
本发明中涉及到的百分比、比例，除另有说明外，均为重量比。Unless otherwise specified, the percentages and ratios involved in the present invention are weight ratios.
本发明的方法通过采用常压活化浸出技术，选择性溶解钼精矿中的黄铜矿和硫化铼，实现了钼与铜铼的有效分离，既回收了铜、铼等有价金属，又提升了钼精矿的品位。浸出渣经洗涤后成为纯度较高的合格钼精矿，钼品位可达47％以上。浸出液含有铜、铼等有价金属，采用萃取法实现铜、铼和钼分步萃取，经过反萃后生产阴极铜、铼酸铵和钼酸铵合格产品。本发明的方法工艺流程简单，生产操作方便，易于实现工业化。The method of the present invention selectively dissolves chalcopyrite and rhenium sulfide in the molybdenum concentrate by adopting normal pressure activation leaching technology, thereby realizing the effective separation of molybdenum and copper rhenium, recovering valuable metals such as copper and rhenium, and improving The grade of molybdenum concentrate. After the leaching slag is washed, it becomes a qualified molybdenum concentrate with high purity, and the molybdenum grade can reach more than 47%. The leaching solution contains valuable metals such as copper and rhenium. The copper, rhenium and molybdenum are extracted step by step by extraction method. After back extraction, qualified products of cathode copper, ammonium rhenate and ammonium molybdate are produced. The method of the invention has simple technological process, convenient production and operation, and is easy to realize industrialization.
具体实施方式detailed description
一种从复杂钼精矿中选择性分离铜铼的方法，其过程依次为：(1)将所述复杂钼精矿细磨；(2)将细磨后的复杂钼精矿在混酸体系及通入氧化性气体的条件下，进行常压活化浸出，控制浸出pH<2，温度为80～100℃，液固比为2～10:1，浸出时间为0.5～5h。获得含铜、铼等有价金属的浸出液和含辉钼矿浸出渣，分析渣中各元素含量计算浸出率。(3)浸出液采用分步萃取法回收铼、钼和铜，首先萃取铜，反萃液通过电积生产阴极铜；萃铜后液萃取铼，反萃生产铼酸铵；萃铼后的萃余液萃取钼，反萃生产钼酸铵；(4)浸出渣洗涤后用于销售或生产钼产品。A method for selectively separating copper and rhenium from complex molybdenum concentrates, the process of which is as follows: (1) finely grinding the complex molybdenum concentrates; (2) finely grinding the complex molybdenum concentrates in a mixed acid system and Under the condition of feeding oxidizing gas, carry out normal pressure activation leaching, control the leaching pH<2, the temperature is 80-100°C, the liquid-solid ratio is 2-10:1, and the leaching time is 0.5-5h. The leaching solution containing valuable metals such as copper and rhenium and the leaching slag containing molybdenite are obtained, and the content of each element in the slag is analyzed to calculate the leaching rate. (3) Rhenium, molybdenum and copper are recovered from the leaching solution by a step-by-step extraction method. First, copper is extracted, and the back-extraction solution is used to produce cathode copper by electrowinning; after copper extraction, the liquid extracts rhenium, and back-extraction produces ammonium rhenate; Liquid extraction of molybdenum, back extraction to produce ammonium molybdate; (4) The leaching residue is washed and used for sales or production of molybdenum products.
用以下非限定性实施例对本发明的工艺作进一步的说明，以有助于理解本发明及其优点，而不作为对本发明保护范围的限定，本发明的保护范围由权利要求书决定。The process of the present invention is further described with the following non-limiting examples to help understand the present invention and its advantages, but not as a limitation to the protection scope of the present invention, which is determined by the claims.
实施例1Example 1
取200g复杂钼精矿，含钼39％，铜5％，铼400g/t。试验条件：95℃，液固比5:1，pH值1.5，浸出时间4h，氧气流量15m3/h。Take 200g complex molybdenum concentrate, containing 39% molybdenum, 5% copper, and 400g/t rhenium. Test conditions: 95°C, liquid-solid ratio 5:1, pH value 1.5, leaching time 4h, oxygen flow rate 15m 3 /h.
试验结果：铜、铼、钼浸出率：95.6％、95.02％、4.1％。浸出渣主要成分：钼47％、铜0.21％、铼24g/t。浸出液成分：Cu7.82g/L、Mo3.31g/L、Re0.068g/L。Test results: copper, rhenium, molybdenum leaching rate: 95.6%, 95.02%, 4.1%. The main components of the leaching slag are: molybdenum 47%, copper 0.21%, rhenium 24g/t. Leaching solution composition: Cu7.82g/L, Mo3.31g/L, Re0.068g/L.
实施例2Example 2
取200g复杂钼精矿，含钼40％，铜3％，铼300g/t。试验条件：90℃，液固比4:1，pH值1，浸出时间3h，氧气流量20m3/h。Take 200g complex molybdenum concentrate, containing 40% molybdenum, 3% copper, and 300g/t rhenium. Test conditions: 90°C, liquid-solid ratio 4:1, pH value 1, leaching time 3h, oxygen flow rate 20m 3 /h.
试验结果：铜、铼、钼浸出率：96.8％、95.2％、4.9％。浸出渣主要成分：钼48％、铜0.11％、铼20g/t。浸出液成分：Cu7.6g/L、Mo6.1g/L、Re0.071g/L。Test results: copper, rhenium, molybdenum leaching rate: 96.8%, 95.2%, 4.9%. The main components of the leaching slag are: molybdenum 48%, copper 0.11%, rhenium 20g/t. Leaching solution composition: Cu7.6g/L, Mo6.1g/L, Re0.071g/L.
实施例3Example 3
取200g复杂钼精矿，含钼35％，铜7％，铼350g/t。试验条件：80℃，液固比6:1，pH值1，浸出时间5h，氧气流量20m3/h。Take 200g complex molybdenum concentrate, containing 35% molybdenum, 7% copper, and 350g/t rhenium. Test conditions: 80°C, liquid-solid ratio 6:1, pH value 1, leaching time 5h, oxygen flow rate 20m 3 /h.
试验结果：铜、铼、钼浸出率：93.3％、95.1％、4.5％。浸出渣主要成分：钼45％、铜0.25％、铼21g/t。浸出液成分：Cu11.3g/L、Mo4.1g/L、Re0.078g/L。Test results: copper, rhenium, molybdenum leaching rate: 93.3%, 95.1%, 4.5%. The main components of the leaching slag are: molybdenum 45%, copper 0.25%, rhenium 21g/t. Leaching solution composition: Cu11.3g/L, Mo4.1g/L, Re0.078g/L.
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| CN115323194B (en) * | 2022-08-16 | 2023-06-06 | 紫金矿业集团股份有限公司 | Process method for treating molybdenite by full wet method under normal pressure condition |
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