CN101509068A - Infiltration treatment process for ore containing copper - Google Patents
Infiltration treatment process for ore containing copper Download PDFInfo
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- CN101509068A CN101509068A CNA2008100577329A CN200810057732A CN101509068A CN 101509068 A CN101509068 A CN 101509068A CN A2008100577329 A CNA2008100577329 A CN A2008100577329A CN 200810057732 A CN200810057732 A CN 200810057732A CN 101509068 A CN101509068 A CN 101509068A
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- copper
- ammonium sulfate
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- leaching
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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
Abstract
The invention provides a processing method for solution-leaching copper-containing minerals, comprising the following steps: (1) fully mixing the copper-containing minerals which are pulverized and ground with ammonium sulfate as the solid-phase reactant; (2) transferring the products of the solid-phase reaction to hot water, stirring, leaching and filtering; and (3) separating and purifying the filter liquor according to the component of the minerals. The method allows the solid-phase reaction between ammonium sulfate as the solid-phase reactant and copper and other metals in the minerals under the conditions of constant pressure and lower reaction temperature, and then, the copper is transferred (leached) to the solution through clear water, thereby providing convenience for further separating and purifying and finally the target products are obtained; the ammonia decomposed during the digestion reaction process of the minerals, and the ammonium sulfate solution which is the residue from the separation of the digestion leaching solution are recycled for cyclic use respectively, thereby forming the self-circulation of raw and supplemental materials and minimizing the consumption of ammonium sulfate; and compared with the original processing method, the processing method of the invention has the advantages of low environmental pollution and low energy consumption and greatly reduces the production cost.
Description
Technical field
The invention belongs to extraction (wet method) field of metallurgy, relate to a kind of infiltration treatment process of copper-containing ore.
Background technology
The copper-containing ore that nature exists mainly be divided into copper oxide ore and copper-sulphide ores two big classes, copper-sulphide ores and high-grade copper oxide ore (more than 35%) mainly refine copper with the method for pyrometallurgical smelting, and the copper oxide ore of low taste mainly is to reclaim copper with the method that wet method is extracted.Wherein, the production cost height of pyrometallurgical smelting, the environment protection treating investment is big.Wet treatment method mainly contains pickling process and ammonia leaching process.Pickling process is copper oxide ore to be pulverized the back use sulfuric acid dissolution, makes the most copper dissolving in the ore, and leach liquor is purification and impurity removal (solvent extraction or chemical precipitation) again, and the purified solution that obtains obtains cathode copper through electrodeposition.The pickling process acid consumption is big, cost height, and solution impurity ion content height, aftertreatment technology difficulty.Ammonia leaching process is to add ammonium salt in the leaching stage in ammonia soln to dissolve copper in the ore, and leach liquor obtains cupric oxide through ammonia still process again, perhaps obtains cathode copper through extraction and electrodeposition, perhaps obtains copper powder at the direct electrodeposition of ammono-system.The main at present ammonia soaking technology flow process that adopts is that reducing roasting-normal pressure ammonia soaks-extracts-electrodeposition, be about under 700-800 ℃ condition, the copper oxide reduction in the ore be become metallic copper behind the grinde ore, then calcining sneaked into by certain liquid-solid ratio NH is housed with reductive agent
3-(NH
4)
2CO
3In the leaching vat of leaching agent, under the air agitation condition, carry out normal pressure and leached 2-4 hour, through liquid-solid separate filter residue and copper-containing solution, copper-containing solution through extract purified cupric rich solution, get metallic copper through electrodeposition again.This method needs the prereduction of high temperature pyrogenic process, the energy consumption height, and facility investment is big, and is especially infeasible economically when handling the low-grade refractory copper oxide ore.In addition, ammonia leaching process is because ammoniacal liquor volatilization in the operating process not only causes the ammoniacal liquor loss, and contaminate environment, and the transportation of ammoniacal liquor is difficulty also.
Summary of the invention
Therefore, it is little to the purpose of this invention is to provide a kind of environmental pollution, and energy consumption is low, the infiltration treatment process of the copper-containing ore that production cost reduces greatly.
Be used to realize that the technical scheme of above-mentioned purpose of the present invention is as follows:
A kind of infiltration treatment process of copper-containing ore said method comprising the steps of:
(1) adopt ammonium sulfate as solid-phase reactant, with roasting behind the copper-containing ore thorough mixing behind the pulverizing and jevigating;
(2) product with the above-mentioned solid phase reaction goes to stirring leaching after-filtration in the hot water;
(3) according to composition of ores filtrate is separated purification.
In above-mentioned method, in above-mentioned steps (1), described roasting is carried out under normal pressure, and maturing temperature is 300～500 ℃, and roasting condition is preferably normal pressure and 300～500 ℃ of following roastings 1～3 hour.The mole number of pressing copper calculates, and described ammonium sulfate is 1～5:1 with the mol ratio of mixing of copper-containing ore.Described ore is broken levigate to-100 orders～+ 300 orders.In above-mentioned steps (2), the product of solid state reaction is stirred leaching with 50～100 ℃ clear water, wherein can also comprise filter residue is washed, and washings is incorporated into filtrate.In the above-mentioned steps (3), described separation is purified and is specially the operation of deironing, extracting copper and/or extracting zinc.
According to the characteristic of ammonium sulfate, when with the ore of containing metal oxide compound and ammonium sulfate Hybrid Heating, monoammonium sulfate or sulfuric acid that ammonium sulfate decomposes will react with the metal oxide in the ore, generate the vitriol of metal.Metal sulfate will change in the solution when water extraction with the ammonium sulfate that does not all decompose even form tschermigite.
The ultimate principle that ammonium sulfate method technology is possible is described with following reaction:
(NH
4)
2SO
4＝(NH
4)HSO
4+NH
3↑
MeO+(NH
4)HSO
4+(NH
4)
2SO
4＝MeSO
4·(NH
4)
2SO
4+NH
3↑+H
2O↑
2MeSO
4·(NH
4)
2SO
4+4NH
4OH＝2Me(OH)
2↓+4(NH
4)
2SO
4
Or
The present invention is a raw material with different types of copper-containing ore, and employing ammonium sulfate is solid-phase reactant, and through pulverizing the ore thorough mixing by a certain percentage after levigate, places in the Reaktionsofen the fixed certain hour of reaction under normal pressure and certain temperature; Then the solid state reaction product is gone to agitation leach in the hot water, thereby realize in the copper-containing ore that the molten of metal such as copper soak, carry out the solid-liquid filtering separation again, obtained the leaching liquid of copper ions.The aftertreatment of leaching liquid can also further be taked corresponding separating and purifying method according to the mineralogical composition in the different ores, finally obtains the metal or the metallic compound that need.This technical process comprises that ore reduction is levigate, the solid phase roasting is reacted, stirs leaching, solid-liquid filtering separation etc.
The infiltration treatment process concrete steps of copper-containing ore comprise:
(1) ore reduction is levigate to-100 orders～+ 300 orders;
(2) sample ore and the ammonium sulfate that step (1) is obtained carries out sufficient solid phase mixing, and the mole number of pressing copper calculates, and ammonium sulfate is 1～5:1 with the mol ratio of mixing of sample ore;
(3) mixing raw material that step (2) is obtained places in the Reaktionsofen, and in 300～500 ℃ roasting temperature 1～3 hour;
(4) reaction product that step (3) is obtained stirs leaching with 50～100 ℃ clear water;
(5) the leaching liquid filtration with step (4) makes it solid-liquid separation, and filter residue is washed;
(6) filtrate that step (5) is obtained is carried out aftertreatment according to processing requirement, as operations such as deironing, extracting coppers.
Characteristics of the present invention are, at normal pressure and than under the low reaction temperatures, with ammonium sulfate as reactant, make it with ore in contained metals such as copper carry out solid state reaction, by clear water copper is shifted (molten soaking) to solution then, be convenient to further separation, the refining and final purpose product that obtains.The ammonia that ore stripping reaction process decomposites, and the remaining ammoniumsulphate soln in stripping leaching liquid separation back will reclaim respectively and recycle, thereby the self-circulation of supplementary material in the formation system make the loss of ammonium sulfate can drop to bottom line.With respect to original infiltration treatment process, the infiltration treatment process of copper-containing ore of the present invention has that environmental pollution is little, and energy consumption is low, the advantage that production cost reduces greatly.
Description of drawings
Fig. 1 is the schematic flow sheet of infiltration treatment process of the present invention.
Fig. 2 is the schema that is reclaimed copper zinc by the copper zinc ore.
Embodiment
Embodiment 1 bronze medal mine tailing molten soaked processing
With certain copper mine tailing (cupric 0.03%) is raw material, through pulverizing and jevigating, sieve is got the sample ore of-200～+ 300 order granularities, with copper content in the sample ore is benchmark, mol ratio in ammonium sulfate and copper is ratio and the ammonium sulfate thorough mixing of 5:1, places then in the Reaktionsofen to react 2 hours under 350～450 ℃ temperature.React the burning sample that finishes with the hot water dissolving, and be transferred in the leaching container, in the ratio adding hot water of liquid-solid ratio 3～5:1, and continuously stirring was leached 30 minutes under 70～90 ℃ temperature.Dissolution fluid and slag are carried out heat filtering, wash filter residue three times, be incorporated in the filtrate with clear water; Filtrate collection and metering, filter residue oven dry back Weighing is analyzed the component concentration in filtrate and the filter residue then.Calculate the solubility rate of copper in the primary sample ratio of primary sample copper content (the stripping copper amount with) through compositional analysis〉95%.
Embodiment 2 bronze medal zinc ores molten soaked processing
In the used sample ore copper zinc ore, copper content 1.05%, main copper bearing metallic ore is chalcopyrite, copper glance, zink sulphide etc., and the copper in the ore is mainly chalcopyrite ore, and wherein contained copper is 0.98%, accounts for 92.45% of ore cupric total amount; Zinc in the ore is mainly zinc sulphide, and wherein contained zinc is 2.82%, accounts for to contain 93.38% of zinc total amount in the ore.Sample ore is through pulverizing and jevigating, and it is 300 purpose sample ores that sieve is got granularity, is benchmark with copper content in the sample ore, is ratio and the ammonium sulfate thorough mixing of 5:1 in the mol ratio of ammonium sulfate and copper, places then that Reaktionsofen is interior to react 2 hours under 350～450 ℃ temperature.The burning sample that finishes with hot water dissolving reaction, and being transferred in the leaching container adds hot water in the ratio of liquid-solid ratio 3～5:1, and continuously stirring leaching 30 minutes under 70～90 ℃ temperature.Dissolution fluid and slag are carried out heat filtering, wash filter residue three times, be incorporated in the filtrate with clear water; Filtrate collection and metering, filter residue oven dry back Weighing is analyzed the component concentration in filtrate and the filter residue then.Calculate the solubility rate of copper in the primary sample ratio of primary sample copper content (the stripping copper amount with) 〉=90%, the solubility rate of zinc through compositional analysis〉95%.
Claims (9)
1. the infiltration treatment process of a copper-containing ore is characterized in that, said method comprising the steps of:
(1) adopt ammonium sulfate as solid-phase reactant, with roasting behind the copper-containing ore thorough mixing behind the pulverizing and jevigating;
(2) product with the above-mentioned solid phase reaction goes to stirring leaching after-filtration in the hot water;
(3) according to composition of ores filtrate is separated purification.
2. method according to claim 1 is characterized in that described roasting is carried out under normal pressure.
3. method according to claim 1 and 2 is characterized in that, described maturing temperature is 300～500 ℃.
4. according to each described method in the claim 1 to 3, it is characterized in that described roasting condition is normal pressure and 300～500 ℃ of following roastings 1～3 hour.
5. according to each described method in the claim 1 to 4, it is characterized in that the mole number of pressing copper calculates, described ammonium sulfate is 1～5:1 with the mol ratio of mixing of copper-containing ore.
6. according to each described method in the claim 1 to 5, it is characterized in that described ore is broken levigate to-100 orders～+ 300 orders.
7. according to each described method in the claim 1 to 6, it is characterized in that, in the described step (2), the solid state reaction product is stirred leaching with 50～100 ℃ clear water.
8. according to each described method in the claim 1 to 7, it is characterized in that described step (2) also comprises washs filter residue, and washings is incorporated into filtrate.
9. according to each described method in the claim 1 to 8, it is characterized in that separating in the described step (3) purifies is the operation of deironing, extracting copper and/or extracting zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100577329A CN101509068A (en) | 2008-02-13 | 2008-02-13 | Infiltration treatment process for ore containing copper |
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|---|---|---|---|
| CNA2008100577329A CN101509068A (en) | 2008-02-13 | 2008-02-13 | Infiltration treatment process for ore containing copper |
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| CN101509068A true CN101509068A (en) | 2009-08-19 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703700A (en) * | 2012-06-20 | 2012-10-03 | 昆明理工大学 | Two-stage ammonia leaching-flow distributing extraction method for copper oxide ore |
| CN102732714A (en) * | 2012-04-01 | 2012-10-17 | 东北大学 | Comprehensive utilization method of copper oxide ores |
| CN102732720A (en) * | 2012-04-01 | 2012-10-17 | 东北大学 | Method for processing copper oxide ore |
| CN102952941A (en) * | 2012-04-01 | 2013-03-06 | 东北大学 | Utilization method of copper oxide ores |
| CN105018736A (en) * | 2014-04-28 | 2015-11-04 | 中国科学院过程工程研究所 | Method for comprehensive recovery of magnesium, aluminum, chromium and iron in carbon ferrochrome smelting slag |
| CN105140504A (en) * | 2015-08-11 | 2015-12-09 | 东北大学 | Method for preparing lithium battery electrode material from vanadium-extraction waste slag |
| CN105316490A (en) * | 2015-11-13 | 2016-02-10 | 武汉工程大学 | Technique for recycling ammonium sulfate to extract copper from copper sulphide minerals through wet process |
| CN106967889A (en) * | 2017-03-14 | 2017-07-21 | 上海大学 | The method that cobalt is extracted in a kind of low nickel matte sulfating roasting-water logging |
| CN114406280A (en) * | 2022-01-21 | 2022-04-29 | 重庆科技学院 | Method for preparing nano copper powder by taking chalcopyrite as raw material |
-
2008
- 2008-02-13 CN CNA2008100577329A patent/CN101509068A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952941B (en) * | 2012-04-01 | 2016-02-24 | 东北大学 | A kind of method utilizing copper oxide ore |
| CN102732720B (en) * | 2012-04-01 | 2016-02-24 | 东北大学 | A kind of method processing copper oxide ore |
| CN102732720A (en) * | 2012-04-01 | 2012-10-17 | 东北大学 | Method for processing copper oxide ore |
| CN102952941A (en) * | 2012-04-01 | 2013-03-06 | 东北大学 | Utilization method of copper oxide ores |
| CN102732714B (en) * | 2012-04-01 | 2015-12-02 | 东北大学 | A kind of method fully utilizing copper oxide ore |
| CN102732714A (en) * | 2012-04-01 | 2012-10-17 | 东北大学 | Comprehensive utilization method of copper oxide ores |
| CN102703700A (en) * | 2012-06-20 | 2012-10-03 | 昆明理工大学 | Two-stage ammonia leaching-flow distributing extraction method for copper oxide ore |
| CN105018736A (en) * | 2014-04-28 | 2015-11-04 | 中国科学院过程工程研究所 | Method for comprehensive recovery of magnesium, aluminum, chromium and iron in carbon ferrochrome smelting slag |
| CN105018736B (en) * | 2014-04-28 | 2017-11-14 | 中国科学院过程工程研究所 | Magnesium, aluminium, chromium, the method for iron synthetical recovery in a kind of carbon ferrochrome metallurgical slag |
| CN105140504A (en) * | 2015-08-11 | 2015-12-09 | 东北大学 | Method for preparing lithium battery electrode material from vanadium-extraction waste slag |
| CN105140504B (en) * | 2015-08-11 | 2018-02-02 | 东北大学 | A kind of method that electrode material of lithium battery is prepared using vanadium extraction waste |
| CN105316490A (en) * | 2015-11-13 | 2016-02-10 | 武汉工程大学 | Technique for recycling ammonium sulfate to extract copper from copper sulphide minerals through wet process |
| CN106967889A (en) * | 2017-03-14 | 2017-07-21 | 上海大学 | The method that cobalt is extracted in a kind of low nickel matte sulfating roasting-water logging |
| CN114406280A (en) * | 2022-01-21 | 2022-04-29 | 重庆科技学院 | Method for preparing nano copper powder by taking chalcopyrite as raw material |
| CN114406280B (en) * | 2022-01-21 | 2023-10-24 | 重庆科技学院 | Method for preparing nanometer copper powder by taking chalcopyrite as raw material |
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Open date: 20090819 |