CN1325668C - Leaching method for complicated cupric sulfide aurin ore - Google Patents
Leaching method for complicated cupric sulfide aurin ore Download PDFInfo
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- CN1325668C CN1325668C CNB2006100423533A CN200610042353A CN1325668C CN 1325668 C CN1325668 C CN 1325668C CN B2006100423533 A CNB2006100423533 A CN B2006100423533A CN 200610042353 A CN200610042353 A CN 200610042353A CN 1325668 C CN1325668 C CN 1325668C
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Abstract
The present invention relates to the technical field of hydrometallurgy, particularly to a leaching method for complicated cupric sulfide aurin ore concentrate. The method is characterized in that ore slurry is stirred, leached out, extracted, cyanided and leached out under the condition of normal pressure oxidation, zinc powder is displaced to recover Au, Ag and Cu, and elemental sulfur is enriched by flotation and recovered by heat filtration; any one of iron nitrate, iron sulfate, iron chloride, vanadium oxide, manganese compound and titanium compound or the combination of the catalysts which are catalysts capable of changing the surface activity of a copper sulfide mineral is added into the stirring and leaching process step, and the dosage of the catalyst of that of the combination is 0.05 to 1.0mol/L. The present invention has the characteristics of easy technical condition control, convenient operation, no danger, low production cost, high Au, Ag and Cu leaching rate, low impurity content, comprehensive sulfur recovery, environmental friendliness, etc. The ore slurry can be oxygenized and leached out under the normal pressure and in low temperature.
Description
One. technical field
The present invention relates to a kind of technical field of wet metallurgy, especially a kind of leaching method of complicated cupric sulfide aurin ore.
Two. background technology
The insider thinks that complicated cupric sulfide aurin ore is meant the complicated ore of components such as containing chalcopyrite, pyrite, covellite, zink sulphide, copper glance, arsenopyrite, pentlandite in the mineral composition.Complicated cupric sulfide aurin ore has characteristics such as distribution is wide, reserves are many, the leaching difficulty is big.At present, it is technical that the leaching method that is in the complicated cupric sulfide aurin ore of conceptual phase comparatively concentrates on wet oxidation, mainly contain: disclosed " High Temperature High Pressure total oxygen technology ", " middle temperature low pressure leaching-out technique ", " low-temp low-pressure leaching-out technique ", " bacterial oxidation leaching-out technique ", " conventional chemical oxidation technology " and comparatively approaching with the present invention, smelt part at " non-ferrous metal ", 2003 (3): 20-21,41 are representative by six kinds of Jiang Jun auspicious semi-over " the high chlorine atmosphere-pressure catalytic oxidation of peracid technology ", so-called height, in, low temperature is defined in respectively 〉=and 200 ℃, 120～200 ℃, 80～120 ℃, so-called height, in, low pressure is defined in 3MPa respectively, 1.5～3MPa, 0.5～1.5MPa.The problem that disclosed technology exists: the equipment requirements height, cost of investment is big, technical qualification are wayward, operation is inconvenient, danger is big, the precious metal recovery is difficult, the sulfuric acid that sulphur can not reclaim, generate needs neutralizing treatment, the quantity of slag is big, cost is high, be difficult for realizing industrialization, add villaumite concentration height, serious in the technical scheme that has to equipment corrosion, too high, the leach liquor of oxygenant regeneration cost is difficult to handle in the technical scheme that has, in the technical scheme that has ore need fine grinding, can not handle contain the pozzuolite copper ore concentrates, extraction time is long, power consumption is big etc.It serves as to leach reagent and add catalyzer that semi-over technology has only disclosed with the vitriol oil, villaumite, but do not disclose added catalyst type and consumption, copper leaching rate is improved, but still exist serious to equipment corrosion, oxygen depletion is many, leach liquor sulfuric acid and villaumite concentration height and be difficult to reclaim problem such as copper, only is in the laboratory study stage.
Three. summary of the invention
The object of the present invention is to provide a kind of leaching method of complicated cupric sulfide aurin ore, make complicated cupric sulfide aurin ore in low acid medium rapidly by dioxygen oxidation, improve gold, silver and bronze leaching yield and the comprehensive sulphur that reclaims, reduce facility investment and production cost.
For reaching this purpose, the present invention mainly finishes in the following way:
A zinc dust precipitation is leached in ore pulp agitation leach under the atmospheric pressure oxidation condition, extraction, cyaniding reclaim gold, silver and bronze and floating and enriching-Re filter recovery elemental sulfur, add any or its combination can change in the surface-active catalyzer iron nitrate of copper sulfide mineral, ferric sulfate, iron(ic) chloride, barium oxide, manganic compound, the titanium compound in the agitation leach operation, consumption is 0.05～1.0mol/L.
The ore deposit reagent that soaks of agitation leach adopts dilute sulphuric acid, and raffinate and catalyst recycle are used.
The stirring maximum line velocity of agitation leach is 4～5m/s.
Under normal pressure and 60～100 ℃ of temperature, stir, make complicated cupric sulfide aurin ore rapidly by dioxygen oxidation.
Particular content of the present invention also comprises:
The leaching method of complicated cupric sulfide aurin ore, described catalyst levels are 0.1～0.5mol/L.
Barium oxide refers to three vanadium oxides, vanadium pentoxide, vanadium trichloride.Titanium compound refers to titanium dioxide etc.Manganic compound refers to Manganse Dioxide, potassium manganate, potassium permanganate.
Advantage of the present invention:
1. oxidation is leached under normal pressure and low temperature, technical qualification control easily, easy to operate, do not have dangerous, production cost is low, gold, silver and bronze leaching yield height and foreign matter content is low, can comprehensively reclaim sulphur.
The catalyzer of Tian Jiaing can make complicated cupric sulfide aurin ore in low acid medium rapidly by dioxygen oxidation, requirement for anticorrosion is low, low equipment investment, oxygen depletion are few.
3. but raffinate and catalyzer recirculation are used, and is easy and simple to handle, environmentally friendly.
4. easily purchase on the catalyzer market of Tian Jiaing and price is not high, effect significantly.
Four. embodiment
The following example will further specify the present invention.
Embodiment 1
Account for 90% above ore with-0.074mm granularity, pulp solids concentration 10～40%, soak ore deposit reagent and adopt 0.1～1.0mol/L dilute sulphuric acid, feeding concentration is 21～96% oxygen, add 0.1～0.5mol/L ferric sulfate, the catalyzer of any in the barium oxide or its combination, agitation leach in the leaching vat under normal pressure and 60～100 ℃ of temperature, the stirring maximum line velocity is 4～5m/s, extraction time is 2～8 hours, through subsequent handling, survey: the leaching yield of copper＞95% again, leaching yield＞97% of gold, leaching yield＞93% of silver, the rate of recovery of sulphur＞89%, foreign matter content is low, pyrite is not oxidized substantially, oxygen depletion amount 50Nm
3/ t.
Embodiment 2
Other condition is with embodiment 1, just add the catalyzer of any or its combination in iron nitrate, ferric sulfate, iron(ic) chloride, barium oxide, manganic compound, the titanium compound, consumption is 0.05～1.0mol/L, extraction time surpasses 8 hours, actual measurement: the leaching yield of copper, gold and silver all reaches 80%, the rate of recovery of sulphur reaches 75%, slightly high, not oxidized substantially, the oxygen depletion amount 80Nm of pyrite of foreign matter content
3/ t.
Comparative experiments example 1
Other condition is added above-mentioned catalyzer 1.5mol/L with embodiment 1, and extraction time is 2～8 hours, the leaching yield of copper, gold and silver all＞80%, the rate of recovery＞80% of sulphur, it is higher to carry impurity in the extracting copper secretly, cost obviously increases.
Comparative experiments example 2
Other condition is added above-mentioned catalyzer 0.03mol/L with embodiment 1, and extraction time surpasses 8 hours, and the leaching yield of copper, gold and silver is not high, the rate of recovery of sulphur is also low, does not play katalysis
Comparative experiments example 3
Other condition is with embodiment 1, stirs maximum line velocity be＜3m/s, and shearing force reduces oxygen bubbles and is difficult to the disperse extraction time above 8 hours, and the oxygen depletion amount obviously increases, and the leaching yield of copper, gold and silver and the rate of recovery of sulphur are all undesirable.
Claims (6)
1. the leaching method of a complicated cupric sulfide aurin ore, this method comprises ore pulp agitation leach under the atmospheric pressure oxidation condition, extraction, cyaniding leaching-zinc dust precipitation recovery gold and silver and floating and enriching-heat filter operation recovery elemental sulfur step, it is characterized in that in the agitation leach operation adding any or its combination that can change in the surface-active catalyzer iron nitrate of copper sulfide mineral, ferric sulfate, iron(ic) chloride, barium oxide, manganic compound, the titanium compound, consumption is 0.05～1.0mol/L.
2. the leaching method of complicated cupric sulfide aurin ore according to claim 1 is characterized in that described catalyst levels is 0.1～0.5mol/L.
3. the leaching method of complicated cupric sulfide aurin ore according to claim 1 and 2 is characterized in that the ore deposit reagent that soaks of agitation leach adopts dilute sulphuric acid, and raffinate and catalyst recirculation is re-used.
4. the leaching method of complicated cupric sulfide aurin ore according to claim 1, the stirring maximum line velocity that it is characterized in that agitation leach is 4～5m/s.
5. according to the leaching method of claim 1 or 2 or 4 described complicated cupric sulfide aurin ores, it is characterized in that under normal pressure and 60～100 ℃ of temperature, stirring, make complicated cupric sulfide aurin ore rapidly by dioxygen oxidation.
6. according to the leaching method of claim 2 or 4 described complicated cupric sulfide aurin ores, it is characterized in that extraction time is 2～8 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100423533A CN1325668C (en) | 2006-01-25 | 2006-01-25 | Leaching method for complicated cupric sulfide aurin ore |
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| CNB2006100423533A CN1325668C (en) | 2006-01-25 | 2006-01-25 | Leaching method for complicated cupric sulfide aurin ore |
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| CN1821428A CN1821428A (en) | 2006-08-23 |
| CN1325668C true CN1325668C (en) | 2007-07-11 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RS58143B1 (en) * | 2009-12-04 | 2019-02-28 | Barrick Gold Corp | Separation of copper minerals from pyrite using air-metabisulfite treatment |
| CN102205264A (en) * | 2010-12-23 | 2011-10-05 | 紫金矿业集团股份有限公司 | Beneficiation method for increasing gold recovery rate of copper-zinc sulfide ore |
| US9683277B2 (en) | 2013-09-24 | 2017-06-20 | Likivia Process Metalúrgicos SPA | Process for preparing a ferric nitrate reagent from copper raffinate solution and use of such reagent in the leaching and/or curing of copper substances |
| CN105268558B (en) * | 2015-08-19 | 2019-01-11 | 江西理工大学 | A kind of method of the valuable component comprehensive utilization of the low cuprate complex copper-sulphide ores association of high-sulfur |
| CN106755999B (en) * | 2016-12-21 | 2018-11-23 | 武汉理工大学 | A kind of microwave reinforced leaching method of chalcopyrite |
| CN107287417B (en) * | 2017-07-04 | 2019-03-22 | 广西锰华科技投资有限公司 | The comprehensive recovering process of copper, gold, silver in a kind of copper-sulphide ores |
| CN108315553B (en) * | 2018-02-10 | 2020-05-12 | 中南大学 | A kind of leaching method of copper sulfide cobalt ore |
| US11124858B2 (en) * | 2018-08-27 | 2021-09-21 | Flsmidth A/S | Solid-state catalysts for low or moderate temperature leach applications and methods thereof |
| CN109055762B (en) * | 2018-09-29 | 2020-06-30 | 阳谷祥光铜业有限公司 | Copper removal treatment method for copper-selenium-containing waste |
| CN111690820A (en) * | 2019-03-14 | 2020-09-22 | 北京利豪森矿业技术有限公司 | Atmospheric oxygen-enriched acid leaching method for copper-containing flotation gold concentrate |
| CN111411224B (en) * | 2020-05-15 | 2022-03-29 | 广东省资源综合利用研究所 | Beneficiation method for comprehensively recovering and combining silver and copper from low-grade manganese-containing ore |
| CN112760480B (en) * | 2020-12-22 | 2023-01-13 | 衢州华友钴新材料有限公司 | Method for improving oxygen pressure leaching efficiency of copper sulfide cobalt concentrate |
| CN114574711B (en) * | 2022-03-10 | 2024-04-23 | 中国有色桂林矿产地质研究院有限公司 | Oxidation leaching method of copper sulfide ore |
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| SU1100527A1 (en) * | 1983-01-06 | 1984-06-30 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Ювелирной Промышленности | Reagent for testing gold alloys |
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| 从含铜金精矿综合回收金银铜硫的湿法冶金工艺研究 黄怀国，黄金科学技术，第12卷第3期 2004 * |
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| 含铜金矿的压力氧化浸出及其机理 邱廷省，聂光华，张强，陈景河，邹来昌，中国有色金属学报，第15卷第12期 2005 * |
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Effective date of registration: 20170830 Address after: 361000 Fujian province Xiamen torch hi tech Zone (Xiangan) Industrial Zone Fang Mountain Road No. 3 Patentee after: Xiamen Zijin Mining Technology Co., Ltd. Address before: 364200 Zijin building, No. 1 Zijin Road, Shanghang County, Fujian Province Patentee before: Zijin Mining-Industry Group Corp. |
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