WO2018161651A1 - 一种低氧化率高结合率混合铜矿的选矿方法 - Google Patents
一种低氧化率高结合率混合铜矿的选矿方法 Download PDFInfo
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- WO2018161651A1 WO2018161651A1 PCT/CN2017/114275 CN2017114275W WO2018161651A1 WO 2018161651 A1 WO2018161651 A1 WO 2018161651A1 CN 2017114275 W CN2017114275 W CN 2017114275W WO 2018161651 A1 WO2018161651 A1 WO 2018161651A1
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- copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- the invention relates to a beneficiation method for a mixed copper mine with low oxidation rate and high combined rate, belonging to the technical field of mineral processing.
- Copper resources mainly include two major parts of copper sulfide and copper oxide, copper sulfide ore accounts for 80%, and copper oxide ore accounts for 20%. Due to the large amount of copper sulfide ore and the relatively easy recovery of ore dressing, more than 80% of the copper is currently derived from copper sulfide ore resources. The recovery of copper oxide ore is difficult, and the recovery rate of ore dressing is low. In the current shortage of copper resources, the efficient use of copper oxide resources is imperative, so the ore recovery of copper oxide ore has also made some progress. However, in the copper resources, the surface of the copper sulfide deposit is oxidized, forming a huge amount of oxygen-sulfur mixed copper ore resources. This oxygen-sulfur mixed copper mine, mineral processing and metallurgical recovery have encountered certain difficulties.
- the selectivity of copper oxide ore is worse than that of copper sulfide.
- the copper resources are mainly copper sulfide ore.
- the research on copper oxide ore is relatively rare in recent years. There is a shortage of copper resources in China.
- the beneficiation of copper oxide ore has also received great attention.
- For the mixed copper ore it is generally treated as a copper sulfide ore, that is, while recovering the copper sulfide ore in the flotation, considering the recovery of the copper oxide ore, but for the low-oxidation rate and high-combination rate of the oxygen-sulfur mixed copper ore, there is no good The way to deal with it.
- the main methods of flotation of copper oxide ore are vulcanization flotation method and direct flotation method.
- the former is widely used.
- ammonium sulfate, D 2 and other enhanced sulfurization reactions are added, and certain effects are obtained.
- Ammonium sulfate is used as a vulcanization accelerator in industrial production.
- Direct flotation is suitable for some copper oxide ore of simple gangue minerals. For example, when the gangue mineral is mainly quartz, the direct flotation of hydroxamic acid and fatty acid can obtain good technical indicators.
- Heap leaching is an effective method for treating copper oxide ore. It is widely used in Yunnan, Jiangxi, Anhui and other provinces in Africa, America and China. However, for the oxygen-sulfur mixed copper ore, sulfuric acid is difficult to leach the primary copper sulfide therein, and the total leaching rate is low. This method is not suitable for the treatment of low-oxidation oxygen-sulfur mixed copper ore.
- a vulcanization-oxidation mixed copper ore flotation method of application number 200610136735.2 is to use a mixture of xanthate and hydroxamic acid to float copper sulfide ore and copper oxide ore to obtain a high recovery rate. However, this method cannot be recycled for the combined copper ore in the ore.
- the wet leaching method of the low-grade high-alkaline mixed copper ore, nickel ore and zinc ore with the application number of 200510031356.2 firstly crushing the ore and then using the ammonium salt concentration of 0.5-5 mol/L and the ammonia concentration of 0.1-0.5 mol/
- the ammonium salt of L and the ammonia hydrate are combined with a leaching agent for leaching.
- This method also fails to treat ores containing bound copper and native copper sulfide.
- the method combines smelting and smelting, complements each other's advantages, and efficiently recycles the high-combination carbonate gangue-type oxygen-sulfur mixed copper ore resources that cannot be processed at present.
- the copper remaining in the tailings mainly exists in the form of chrysocolla, combined copper, etc., and the grade is already low.
- the tailings sulfuric acid leaching, solid-liquid separation, and extraction of electrowinning are used to recover copper. Due to the complicated process, high investment and operation costs, there is no economic benefit.
- flotation can obtain better technical indicators, and flotation technology is better applied.
- simple oxygen-sulfur mixed copper ore the use of copper sulfide ore-based flotation to simultaneously recover copper sulfide and copper oxide minerals can also achieve better results.
- low calcium and magnesium content a single copper oxide ore, sulfuric acid heap leaching can achieve good results.
- high calcium magnesium oxysulfide mixed copper ore the normal temperature and atmospheric pressure ammonia leaching-slag flotation technology of the ore is applied.
- a higher technology has been achieved. The level has advanced the progress of the copper oxide ore smelting technology.
- the combination of mineral processing and metallurgy is the basic principle of dealing with this oxygen-sulfur mixed copper ore.
- the current post-election post-mineralization or post-metallurgical post-election can not simultaneously solve the problem of recycling of low-oxidation rate and high-binding oxygen-sulfur mixed copper ore, resulting in oxygen-sulfur mixed copper ore, especially low oxidation rate, The problem of high-combination rate oxygen-sulfur mixed copper ore resource selection and smelting has not been broken.
- the object of the present invention is to provide a beneficiation method for a low-oxidation rate and high-combination rate mixed copper ore with low oxidation rate and high binding rate oxygen-sulfur mixed copper ore, thereby realizing efficient utilization of the refractory copper ore resource.
- the invention is realized by the following technical scheme: a beneficiation method of a mixed copper mine with low oxidation rate and high binding rate, which is carried out according to the following steps:
- step (3) (4) Introducing the slurry of No. 3 mixing drum in step (3) into the No. 4 mixing drum, and adding 200g to 300g of xanthate collector to float copper sulfide to obtain copper concentrate per ton of dry tailings.
- the copper sulfide concentrate is mixed with the oxygen-sulfur mixed copper concentrate of step (1), and after desulfurization in the roasting desulfurization furnace, the final copper oxide concentrate is obtained. Flotation tailings are the final tailings.
- the No. 1 mixing drum has an aspect ratio of 3 to 4.
- Other mixing tanks are flotation plants and dip-factory universal mixing drums.
- the xanthate collectors are butyl xanthate and isoamyl xanthate.
- the foaming agent is pine oil and No. 2 oil.
- the first step of the oxygen-sulfur mixed copper concentrate in the wet smelting plant is roasting and desulfurization.
- the first step of the wet smelting plant is moved to the concentrator, and the low-concentration sulfur dioxide flue gas is used for the copper oxide in the tailings. Combined with the leaching of copper, the cost of flue gas desulfurization is saved.
- Figure 1 is a flow chart of the principles of the present invention.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- Raw materials mixed copper ore containing 1.2% copper, 30% oxidation rate, 20% binding rate and less than 4% calcium oxide and magnesium content.
- step (3) (4) Introduce the slurry of No. 3 mixing drum in step (3) into No. 4 mixing drum, and add 300g of xanthate collector to float copper sulfide to form copper concentrate, which is obtained by adding 300g of xanthate collector per ton of dry tailings.
- the concentrate is mixed with the oxygen-sulfur mixed copper concentrate of step (1), and after desulfurization into the roasting desulfurization furnace, the final copper oxide concentrate is obtained, and the flotation tailings is the final tailings.
- the copper concentrate has a copper content of 24% and a copper recovery of 92%.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- Raw materials mixed copper ore containing 0.8% copper, 26% oxidation rate, 18% binding rate and less than 4% calcium oxide and magnesium content.
- step (3) Introducing the slurry of the mixing drum No. 3 in step (3) into the mixing drum No. 4, and adding 250 g of butyl xanthate collector to float copper sulfide per ton of dry tailings to obtain copper concentrate.
- the copper sulfide concentrate is mixed with the oxygen-sulfur mixed copper concentrate in step (1), and after desulfurization in the roasting desulfurization furnace, the final copper oxide concentrate is obtained, and the flotation tailings is the final tailings.
- the copper concentrate has a copper content of 22% and a copper recovery of 88%.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the roasting flue gas contains sulfur dioxide gas
- the smoke produced by the industrial ozone machine is introduced into the flue gas.
- the gas is equal to the equimolar ozone of sulfur dioxide, and the flue gas is introduced into the mixing barrel of the tailings slurry formed in the step (1).
- the height-to-diameter ratio of the mixing drum No. 1 is 3, and manganese dioxide is added per ton of the dry tailings. 200g, control the pH value of the slurry by 2 ⁇ 3, and carry out a stirring reaction for 40 minutes.
- the slurry discharged from the mixing drum No. 1 enters the mixing drum No. 2, and the second reaction is carried out for 20 minutes.
- the pH value of the reaction end point is controlled.
- the flue gas discharged from the mixing drum No. 1 is neutralized by lime and discharged.
- the copper concentrate has a copper content of 18% and a copper recovery of 84%.
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Abstract
Description
Claims (4)
- 一种低氧化率高结合率混合铜的选矿方法,其特征在于按以下步骤进行:(1)将含铜0.5%~1.2%,氧化率20%~30%,结合率15%~20%,氧化钙镁含量小于4%的混合铜矿,磨矿至其中硫化铜矿物和游离氧化铜矿物80%单体解离,按每吨混合铜矿添加300g~500g硫化钠硫化其中的游离氧化铜矿物,添加300g~500g黄药类作为硫化铜矿物和硫化后的游离氧化铜矿物的捕收剂,并按每吨混合铜矿添加起泡剂30g~40g控制浮选泡沫,浮选获得氧硫混合铜精矿,留下含部分难浮选的游离氧化铜和结合铜的尾矿;(2)将步骤(1)获得的氧硫混合铜精矿焙烧脱硫,获得氧化铜精矿为最终铜精矿;焙烧烟气含二氧化硫气体,在烟气中引入由工业臭氧机生产的与烟气中二氧化硫等摩尔的臭氧,将烟气引入步骤(1)形成的尾矿矿浆1号搅拌桶中,同时按每吨干基尾矿添加二氧化锰200g~400g,通过烟气通入量控制矿浆pH值2~3,进行一段搅拌反应40分钟~60分钟,从1号搅拌桶排出的矿浆进入2号搅拌桶,进行第二段反应20分钟~30分钟,反应终点pH值控制在5~6;从1号搅拌桶排出的烟气经石灰中和后达标排放;(3)将步骤(2)中2号搅拌桶的矿浆引入3号搅拌桶,添加硫化钠沉淀其中的铜离子形成硫化铜沉淀,控制硫化钠的加入量,使矿浆溶液中的铜离子浓度小于0.001g/L;(4)将步骤(3)中3号搅拌桶的矿浆引入4号搅拌桶,按每吨干基尾矿添加200g~300g黄药类捕收剂浮选沉淀硫化铜,获得铜精矿,该硫化铜精矿与步骤(1)的氧硫混合铜精矿混合,进入焙烧脱硫炉脱硫后,获得最终氧化铜精矿,浮选尾矿为最终尾矿。
- 根据权利要求1所述的低氧化率高结合率混合铜的选矿方法,其特征在于,所述的1号搅拌桶的高径比为3~4。。
- 根据权利要求1所述的低氧化率高结合率混合铜的选矿方法,其特征在于,所述的黄药类捕收剂为丁基黄药和异戊基黄药。
- 根据权利要求1所述的低氧化率高结合率混合铜的选矿方法,其特征在于,所述的起泡剂为松醇油和2号油。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2017402487A AU2017402487B2 (en) | 2017-03-09 | 2017-12-01 | Beneficiation method for mixed copper ore with low oxidation rate and high binding rate |
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| CN201710139089.3 | 2017-03-09 | ||
| CN201710139089.3A CN106902974B (zh) | 2017-03-09 | 2017-03-09 | 一种低氧化率高结合率混合铜矿的选矿方法 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221695A (zh) * | 2020-09-28 | 2021-01-15 | 穆索诺伊矿业简易股份有限公司 | 一种不同氧化率氧化铜矿的选冶联合提铜方法 |
| CN114247557A (zh) * | 2020-09-22 | 2022-03-29 | 麻阳华森矿业有限责任公司 | 一种自然铜矿的选矿方法 |
| CN114950712A (zh) * | 2022-05-27 | 2022-08-30 | 华刚矿业股份有限公司 | 一种综合回收铜钴的联合处理工艺 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106902974B (zh) * | 2017-03-09 | 2018-01-12 | 昆明理工大学 | 一种低氧化率高结合率混合铜矿的选矿方法 |
| CN110681477B (zh) * | 2018-07-06 | 2021-08-10 | 厦门紫金矿冶技术有限公司 | 一种回收复杂氧化铜矿的选冶联合处理方法 |
| CN113731643B (zh) * | 2021-09-13 | 2023-02-28 | 西安建筑科技大学 | 一种选择性聚团浮选回收氧化后细粒硫化铜矿物的方法 |
| CN117210682B (zh) * | 2023-09-12 | 2025-08-26 | 江西理工大学 | 一种提高难处理氧化铜矿浸出率的自加压密闭浸出工艺 |
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| US3220551A (en) * | 1962-12-06 | 1965-11-30 | American Cyanamid Co | Flotation of sulfide ores |
| CN105817337A (zh) * | 2016-05-10 | 2016-08-03 | 中国瑞林工程技术有限公司 | 从铜冶炼渣中回收铜的方法 |
| CN106238197B (zh) * | 2016-08-11 | 2018-08-31 | 李国民 | 铜精矿生产“铜锍”的焙烧-选矿方法 |
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2017
- 2017-03-09 CN CN201710139089.3A patent/CN106902974B/zh active Active
- 2017-12-01 WO PCT/CN2017/114275 patent/WO2018161651A1/zh not_active Ceased
- 2017-12-01 AU AU2017402487A patent/AU2017402487B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101831559A (zh) * | 2010-05-21 | 2010-09-15 | 昆明理工大学 | 一种高结合率碳酸盐脉石型氧硫混合铜矿的选冶方法 |
| CN102688809A (zh) * | 2012-06-19 | 2012-09-26 | 昆明理工大学 | 基于铜矿物硫化浮选体系的铵-胺耦合活化方法 |
| US20160008822A1 (en) * | 2013-12-20 | 2016-01-14 | Siemens Aktiengesellschaft | Method for separating a defined mineral phase of value from a ground ore |
| CN105834010A (zh) * | 2016-04-21 | 2016-08-10 | 西北矿冶研究院 | 一种从硫氧混合铜铅矿中回收有价组分方法 |
| CN106902974A (zh) * | 2017-03-09 | 2017-06-30 | 昆明理工大学 | 一种低氧化率高结合率混合铜矿的选矿方法 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247557A (zh) * | 2020-09-22 | 2022-03-29 | 麻阳华森矿业有限责任公司 | 一种自然铜矿的选矿方法 |
| CN112221695A (zh) * | 2020-09-28 | 2021-01-15 | 穆索诺伊矿业简易股份有限公司 | 一种不同氧化率氧化铜矿的选冶联合提铜方法 |
| CN114950712A (zh) * | 2022-05-27 | 2022-08-30 | 华刚矿业股份有限公司 | 一种综合回收铜钴的联合处理工艺 |
| CN114950712B (zh) * | 2022-05-27 | 2023-10-13 | 华刚矿业股份有限公司 | 一种综合回收铜钴的联合处理工艺 |
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| CN106902974A (zh) | 2017-06-30 |
| CN106902974B (zh) | 2018-01-12 |
| AU2017402487A1 (en) | 2019-01-31 |
| AU2017402487B2 (en) | 2019-08-01 |
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