CN104846216A - Treatment method of complex copper-molybdenum ore - Google Patents

Treatment method of complex copper-molybdenum ore Download PDF

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Publication number
CN104846216A
CN104846216A CN201510206089.1A CN201510206089A CN104846216A CN 104846216 A CN104846216 A CN 104846216A CN 201510206089 A CN201510206089 A CN 201510206089A CN 104846216 A CN104846216 A CN 104846216A
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copper
molybdenum
ore
leached
leaching
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CN104846216B (en
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蒋开喜
王海北
王玉芳
李相良
李贺
张邦胜
邹小平
王仍坚
王洪刚
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Beijing General Research Institute of Mining and Metallurgy
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Beijing General Research Institute of Mining and Metallurgy
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract

The invention discloses a treatment method of complex copper-molybdenum ore, belonging to the technical field of wet metallurgy. The method comprises the following steps: adding proper amount of sulfuric acid and additive into copper-molybdenum ore to make pressure leaching so as to make copper and others be leached into the solution, and the molybdenum still remains in the leached slag in the form of molybdenum sulfide. The leached residue is roasted or pressurized and oxidized to produce molybdenum oxide and other products, and the leached liquid, copper sulfate solution, is replaced with iron powder to produce sponge copper or extracted to produce copper sulfate, electrolytic copper and other products. The invention provides a convenient and rapid molybdenum and copper separation method, which improves the grade of molybdenum concentrate, reduces the impurity content of products and comprehensively recovers copper.

Description

A kind for the treatment of process of Complicated Copper molybdenum ore
Technical field
The present invention relates to the treatment process of the high Complicated Copper molybdenum ore of a kind of copper content, while obtaining copper products, make high-copper Low Grade Molybdenum Concentrates change the higher-grade concentrated molybdenum ore of applicable molybdenum smelting into.
Background technology
Copper and molybdenum are important nonferrous metal resources, and occurring in nature molybdenum and copper mostly are association, and copper-molybdenum extensively exists in China, have very high economic worth.The concentrated molybdenum ore that traditional copper molybdenum ore many employings ore-dressing technique output is qualified and copper ore concentrates, the strict copper content controlled in concentrated molybdenum ore.Concentrated molybdenum ore, after baked for producing molybdenum oxide, produces molybdenum-iron or ammonia leaching production ammonium molybdate further.MoS in calcining molybdenum ore concentrate process 2be oxidized to MoO 3, when copper content is higher, easily generates the molybdate of indissoluble, have a strong impact on the rate of recovery of molybdenum.But the concentrated molybdenum ore that some copper-molybdenum more difficult sorting output is qualified, for ensureing that the rate of recovery of copper molybdenum can only output copper molybdenum composite ore, more difficult employing traditional technology processes, in the urgent need to developing a kind of new copper-molybdenum smelting technology.
Except traditional pyrometallurgical smelting, the smelting process for cupric molybdenum glance is current still based on the pressure leaching process of molybdenum glance.Such as: pressurization alkaline leaching, under certain temperature and pressure, molybdenum enters solution with the molybdate of solubility, and copper is stayed in mineral because of its insoluble, and the feature of this flow process achieves copper-cobalt ore, equipment corrosion is little, reaction temperature and, but quantity of alkali consumption is large, long reaction time, produce a large amount of sodium sulfate more difficult, production cost is high; Pressurization acidic leaching, under certain temperature and pressure, overwhelming majority copper enters solution with the form of copper sulfate, the molybdenum of about more than 20% enters solution, residue molybdenum is present among solid phase with the form of molybdic acid, and the total conversion rate of molybdenum reaches 99%, but Copper in Slag is relatively high, Molybdenum in Solution is not effectively separated with copper, causes smelting cost to increase.
Summary of the invention
The object of the invention is the deficiency for above-mentioned treatment technology, a kind for the treatment of process of high copper-molybdenum concentrate is provided, the object of the invention is to be achieved through the following technical solutions.
A treatment process for Complicated Copper molybdenum ore, is characterized in that, comprises the following steps:
(1) fine grinding: by the fine grinding of described Complicated Copper molybdenum ore;
(2) copper preextraction: leached by leaching agent pressure oxidation by the copper-molybdenum after step (1) fine grinding, obtains cupric infusion solution and low copper-molybdenum concentrate, and realize being separated of copper and molybdenum, copper enters leach liquor, and molybdenum is enrichment in leached mud;
(3) copper is reclaimed: copper is reclaimed in cupric infusion solution process step (2) obtained;
(4) molybdenum is reclaimed: molybdenum is reclaimed in low copper-molybdenum concentrate process step (3) obtained.
Further, leaching agent described in step (2) is one or more mixing acid in the mineral acids such as sulfuric acid, nitric acid, hydrochloric acid, the preferred 5-200g/L of initial acid leached, extraction temperature is 80-200 DEG C, liquid-solid ratio is 2-10:1, and extraction time is 0.5-5 hour, and the oxygen partial pressure of leaching is 2-10 standard atmospheric pressure, add the parcel that appropriate Sulfite lignin prevent sulphur during leaching, the add-on of Sulfite lignin is generally the 0.2%-0.5% of copper-molybdenum.
Method provided by the invention, the degree of oxidation of copper preextraction step to copper is higher, substantially the leaching of copper can be realized, and the degree of oxidation of molybdenum is lower, molybdenum is still still present in solid phase with the form of molybdenum glance, and iron leaches according to the difference of initial acidity and enters solution or enter in slag with the form such as siderotil, rhombohedral iron ore precipitation.
Further, step (2) adds additive and promotes that reaction is carried out, and to improve the leaching yield of copper, described additive is carbonaceous material, and addition is the 0-10% of copper-molybdenum.
Further, described carbonaceous material, be selected from coal dust, coke or gac one or more.
Further, step (3) reclaims the method for copper for displacement or extraction.Leach liquor can produce copper sponge through iron powder (bits, plate) displacement, or copper sulfate/electrolytic copper product is produced in extraction.
Displacement is and utilizes replacement(metathesis)reaction, and use cheap iron powder to be cemented out by the copper in solution, this is simple for process, but product copper sponge needs further processing treatment or sells outward.
Utilize extraction agent to extract leach liquor as Lix 984 grade, obtain pure copper-bath, evaporative crystallization obtains copper sulfate product or galvanic deposit obtains electrolytic copper product.
Further, step (4) reclaims the method for molybdenum is calcining molybdenum ore concentrate-ammonia soaking technology or pressure oxidation extract technology.
Calcining molybdenum ore concentrate-ammonia soaking technology is the traditional technology that molybdenum is smelted, concentrated molybdenum ore makes the molybdenum in molybdenumdisulphide and sulphur separate through roasting, change into the molybdic oxide being soluble in ammoniacal liquor, molybdic oxide and ammoniacal liquor generate ammonium molybdate and enter solution, reach the object of leaching, but this technique is suitable for cleanup standard concentrated molybdenum ore, has limitation for copper-molybdenum.
It is utilize suitable oxygenant in aqueous that pressure oxidation is leached, and be generally air or oxygen, make the sulphur in concentrated molybdenum ore be oxidized to sulfate radical and enter aqueous phase, molybdenum is then oxidized to MoO 4 2-(alkaline medium) or H 2moO 4(acidic medium) enters aqueous phase or solid phase.Because this technique is carried out under the condition of High Temperature High Pressure, when processing copper-molybdenum, the copper in ore and part molybdenum all enter solution, need carry out separating treatment in subsequent handling.And the present invention is under relatively mild condition, carry out selectivity pre-treatment, while copper is leached, molybdenum does not leach, the separation of both realizations, makes molybdenum obtain enrichment in slag simultaneously.
When step (3) adopts extraction process to reclaim copper, copper raffinate can be used as step (4) molybdenum pressure oxidation leaching agent; When step (4) adopts pressure oxidation extract technology to reclaim molybdenum, molybdenum pressureleaching solution can be used as the leaching agent of step (2) preimpregnation copper step after carrying molybdenum.By above-mentioned recycle, make full use of material, emissions reduction.
Further, in step (2), the leaching yield of copper is more than 80%, and the leaching yield of molybdenum is below 5%.
Further, described Complicated Copper molybdenum ore is the molybdenum ore of cupric more than 3%.
Further, the copper-molybdenum particle diameter after step (1) fine grinding accounts for more than 90% below 300 orders.
In the present invention unless otherwise indicated beyond, ratio, per-cent are mass ratio.
By method provided by the invention, effectively can solve the synthetical recovery problem of Complicated Copper molybdenum ore, simplification of flowsheet, is convenient to production operation, is easy to realize industrialization, effectively realizes the separation of copper molybdenum.
Accompanying drawing explanation
Accompanying drawing is the schematic flow sheet of copper-molybdenum process provided by the invention.
Embodiment
In order to clearer explanation the present invention, enumerate following instance, but without any restrictions to scope of the present invention.
The specific embodiment of the present invention provides a kind of schematic diagram for the treatment of process of Complicated Copper molybdenum ore, as shown in drawings, its principle utilizes condition of high voltage to be leached with the form of copper sulfate by the copper in mineral, and molybdenum still stays solid phase with the form of sulfide, and leached mud reclaims molybdenum further.
Leach liquor can produce copper sponge through iron powder (bits, plate) displacement, or copper sulfate/electrolytic copper product is produced in extraction.With the leach liquor of metallic iron displacement cupric, maintenance solution temperature is 0-100 DEG C, reaction times 15min-24h.
Embodiment 1
Get copper molybdenum composite ore 100g, main component is copper 10.63%, molybdenum 30.16%, iron 11.63%, S35 .4%, what be finely ground to below 300 orders accounts for 90%, add the dilute sulphuric acid pulp that 500ml concentration is 100g/L, add 0.2g lignin, at 150 DEG C, carry out pressure oxidation leaching, in process, pass into oxygen, control oxygen partial pressure 5atm, react 2 hours.
After reaction terminates, copper iron etc. leach and enter solution, and the leaching yield such as copper, iron reaches more than 85%, and slag is containing molybdenum more than 45%.Filtered liquid adds iron replacement copper, and the purity of copper sponge is 89.35%.Leaching copper ashes pressure oxidation molybdenum at 150 ~ 220 DEG C, molybdenum transformation efficiency reaches more than 98%.
Embodiment 2
100g copper-molybdenum is added the dilute sulphuric acid that 500ml concentration is 25g/L, adds 5g coal dust, copper-molybdenum cupric 8.35%, molybdenum 35.67%, control temperature of reaction 150 DEG C, oxygen partial pressure 5atm, extraction time 3h.
After having reacted, copper leaching rate more than 90%, iron partly precipitated enters in leached mud, and molybdenum leaching rate is lower than 2%.
Above-mentioned solution extraction is extracted copper, extraction of copper more than 98%.Leached mud through pressure oxidation Leaching Molybdenum, molybdenum transformation efficiency more than 98.5%.

Claims (10)

1. a treatment process for Complicated Copper molybdenum ore, is characterized in that, comprises the following steps:
(1) fine grinding: by the fine grinding of described Complicated Copper molybdenum ore;
(2) copper preextraction: leached by leaching agent pressure oxidation by the copper-molybdenum after step (1) fine grinding, obtains cupric infusion solution and low copper-molybdenum concentrate;
(3) copper is reclaimed: copper is reclaimed in cupric infusion solution process step (2) obtained;
(4) molybdenum is reclaimed: molybdenum is reclaimed in low copper-molybdenum concentrate process step (3) obtained.
2. the method for claim 1, it is characterized in that, leaching agent described in step (2) is one or more mixing acid in the mineral acids such as sulfuric acid, nitric acid, hydrochloric acid, the initial acid leached is 5-200g/L, extraction temperature is 80 ~ 200 DEG C, and liquid-solid ratio is 2 ~ 10:1, and extraction time is 0.5 ~ 5 hour, the oxygen partial pressure leached is 2-10 standard atmospheric pressure, adds appropriate Sulfite lignin during leaching.
3. the method for claim 1, is characterized in that, step (2) adds additive and promotes that reaction is carried out, and described additive is carbonaceous material, and addition is 0 ~ 10% of copper-molybdenum.
4. method as claimed in claim 3, is characterized in that, described carbonaceous material, is selected from one or more in coal dust, coke or gac.
5. the method for claim 1, is characterized in that, step (3) reclaims the method for copper for displacement or extraction.
6. the method for claim 1, is characterized in that, the method that step (4) reclaims molybdenum is calcining molybdenum ore concentrate-ammonia soaking technology or pressure oxidation extract technology.
7. the method for claim 1, is characterized in that, in step (2), the leaching yield of copper is more than 80%, and the leaching yield of molybdenum is below 5%.
8. the method for claim 1, is characterized in that, described Complicated Copper molybdenum ore is the molybdenum ore of cupric more than 3%.
9. the method for claim 1, is characterized in that, step (3) adopts extraction process to reclaim copper, and copper raffinate is as step (4) molybdenum pressure oxidation leaching agent; Step (4) adopts pressure oxidation extract technology to reclaim molybdenum, molybdenum pressureleaching solution after carrying molybdenum as the leaching agent of step (2) preimpregnation copper step.
10. the method for claim 1, is characterized in that, the copper-molybdenum particle diameter after step (1) fine grinding accounts for more than 90% below 300 orders.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105907992A (en) * 2016-06-28 2016-08-31 西北有色金属研究院 Method for separating molybdenum, copper and rhenium in low-grade molybdenum concentrate through pressurized oxidization
CN108342591A (en) * 2018-02-11 2018-07-31 眉山顺应动力电池材料有限公司 A kind of molybdenum copper novel method for separating
CN111560518A (en) * 2020-07-01 2020-08-21 长沙有色冶金设计研究院有限公司 Treatment method of copper-containing molybdenum concentrate
CN112831660A (en) * 2020-12-30 2021-05-25 成都虹波钼业有限责任公司 Process for comprehensively utilizing molybdenum ore leaching slag
CN114164349A (en) * 2022-02-11 2022-03-11 矿冶科技集团有限公司 Method for removing impurities from molybdenum ore with high copper content and performing closed circulation on solution

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714325A (en) * 1970-11-17 1973-01-30 Us Interior Recovery of molybdenite
CN101537388A (en) * 2009-04-21 2009-09-23 广州有色金属研究院 Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate
CN102634675A (en) * 2012-04-28 2012-08-15 中南大学 Method for treating copper-molybdenum mixed ores
CN103194617A (en) * 2013-04-23 2013-07-10 昆明理工大学 Method for strengthening agitation leaching of cuprite red copper ore type copper oxide
CN103526013A (en) * 2013-10-23 2014-01-22 北京矿冶研究总院 Comprehensive recovery method of complex molybdenum sulfide ore

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714325A (en) * 1970-11-17 1973-01-30 Us Interior Recovery of molybdenite
CN101537388A (en) * 2009-04-21 2009-09-23 广州有色金属研究院 Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate
CN102634675A (en) * 2012-04-28 2012-08-15 中南大学 Method for treating copper-molybdenum mixed ores
CN103194617A (en) * 2013-04-23 2013-07-10 昆明理工大学 Method for strengthening agitation leaching of cuprite red copper ore type copper oxide
CN103526013A (en) * 2013-10-23 2014-01-22 北京矿冶研究总院 Comprehensive recovery method of complex molybdenum sulfide ore

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王燕: "高铜非标钼精矿处理研究进展", 《中国钼业》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105907992A (en) * 2016-06-28 2016-08-31 西北有色金属研究院 Method for separating molybdenum, copper and rhenium in low-grade molybdenum concentrate through pressurized oxidization
CN108342591A (en) * 2018-02-11 2018-07-31 眉山顺应动力电池材料有限公司 A kind of molybdenum copper novel method for separating
CN108342591B (en) * 2018-02-11 2019-12-20 眉山顺应动力电池材料有限公司 New method for separating molybdenum and copper
CN111560518A (en) * 2020-07-01 2020-08-21 长沙有色冶金设计研究院有限公司 Treatment method of copper-containing molybdenum concentrate
CN112831660A (en) * 2020-12-30 2021-05-25 成都虹波钼业有限责任公司 Process for comprehensively utilizing molybdenum ore leaching slag
CN112831660B (en) * 2020-12-30 2022-09-13 成都虹波钼业有限责任公司 Process for comprehensively utilizing molybdenum ore leaching slag
CN114164349A (en) * 2022-02-11 2022-03-11 矿冶科技集团有限公司 Method for removing impurities from molybdenum ore with high copper content and performing closed circulation on solution

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