CN102586601A - Method for removing iron by utilizing autoclave during zinc hydrometallurgy production - Google Patents
Method for removing iron by utilizing autoclave during zinc hydrometallurgy production Download PDFInfo
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- CN102586601A CN102586601A CN2012100615562A CN201210061556A CN102586601A CN 102586601 A CN102586601 A CN 102586601A CN 2012100615562 A CN2012100615562 A CN 2012100615562A CN 201210061556 A CN201210061556 A CN 201210061556A CN 102586601 A CN102586601 A CN 102586601A
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- Prior art keywords
- autoclave
- utilizing
- mixed solution
- carry out
- deironing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 35
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 17
- 239000011701 zinc Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000009854 hydrometallurgy Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910052742 iron Inorganic materials 0.000 title abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 238000002386 leaching Methods 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 239000006228 supernatant Substances 0.000 claims description 10
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 239000002893 slag Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 3
- 229960001763 zinc sulfate Drugs 0.000 abstract 3
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000008569 process Effects 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- -1 and alternatively Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for removing iron by utilizing an autoclave during zinc hydrometallurgy production. The method comprises the following steps of: S1) introducing two-stage leachate obtained by first-stage pressure acid leaching and second-stage pressure neutralization and a neutralizing agent into an autoclave, and introducing an oxidizing agent into the autoclave for forming a mixed solution; S2) controlling the temperature in the autoclave at 65-90 DEG C and controlling the pressure at 0.2-0.5MPa; S3) stirring the mixed solution for a preset period of time at a preset rotational speed; S4) filtering the mixed solution to get a zinc sulfate solution with the iron content of not more than 20mg/l and the pH value at the end point of 5.0-5.2; and S5) performing purification and impurity removal on the zinc sulfate solution. The method for removing the iron by utilizing the autoclave according to the embodiment of the invention has the advantages of simplicity in operation, low consumption of the neutralizing agent, a small quantity of slag, low loss of zinc metal, high metal recovery rate, capability of getting the zinc sulfate solution with the iron content of not more than 20mg/l, no need of steam for heating and effects of saving the steam and reducing energy consumption.
Description
Technical field
The present invention relates to the nonferrous metallurgy field, especially relate in a kind of zinc hydrometallurgy production and utilize autoclave to carry out the method for deironing.
Background technology
In the zinc hydrometallurgy production process; Deironing is an important procedure in the electric zinc production removal of impurities; Existing two sections pressure leaching process method for removing iron are that leach liquor carries out pre-neutralization---deironing---purification earlier under condition of normal pressure; Wherein have following problem: 1, technical process is complicated, and the operational condition difficulty is big, and the production operation time is long.2, the neutralizing agent consumption is big.3, the oxygenant consumption is big.4, the quantity of slag is big, and the zinc metal loss is many.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, one object of the present invention is to propose to utilize autoclave to carry out the method for deironing in a kind of simple to operate and zinc hydrometallurgy production that de-ironing efficiency is high.
Utilize autoclave to carry out the method for deironing in the zinc hydrometallurgy production according to the embodiment of the invention; The two sections leach liquors and the neutralizing agent that comprise the steps: S1, one section pressurized acid leaching, two sections pressurization neutralizations are obtained are passed in the autoclave; And in autoclave, feed oxygenant, to form mixed solution; S2, the temperature of control in the autoclave are that 65-90 ℃, pressure are at 0.2-0.5Mpa; S3, stir the said mixed solution scheduled time with desired speed; S4, said mixed solution is filtered to obtain the middle supernatant that iron-holder≤20mg/l and terminal point PH are 5.0-5.2; S5, supernatant in said is carried out purification and impurity removal.
According to the method for utilizing autoclave to carry out deironing of the embodiment of the invention, the deferrization process flow process is brief, and is simple to operate; The neutralizing agent consumption is few, and the quantity of slag is few, the zinc metal loss is few, and metal recovery rate is high; Not only can obtain the middle supernatant of iron-holder≤20mg/l; And this method of utilizing autoclave to carry out deironing does not need steam to heat, and practices thrift steam, reduces energy consumption.
In addition, the method for utilizing autoclave to carry out deironing according to the present invention also has following additional technical feature:
According to one embodiment of present invention, the said scheduled time is 25-40min.Thereby not only thoroughly deironing, and time is short.
Further, said desired speed is 80-120r/min.
In some embodiments of the invention, said oxygenant is an oxygen.Thus, utilize oxygen to replace Manganse Dioxide as oxygenant, the oxygenant consumption is few, eliminates the impurity that Manganse Dioxide is brought mixed solution into simultaneously.
Alternatively, said oxygen is oxygen-rich air or industrial pure oxygen.
According to the method for utilizing autoclave to carry out deironing of the embodiment of the invention, the deferrization process flow process is brief, and is simple to operate; Do not need steam to heat, practice thrift steam, reduce energy consumption; Activity duration is by foreshortening to 25-40min in traditional 3-4 hour; Only be 15% of traditional technology, and the neutralizing agent consumption is few, calcium stone flour unit consumption is reduced to less than 100kg/tZn from traditional 400kg/tZn in the neutralizing agent.And utilize oxygen to replace Manganse Dioxide as oxygenant, the oxygenant consumption is few, and the oxygen consumption is 10-14kg/tZn; Eliminate Manganse Dioxide simultaneously and bring the impurity in the mixed solution into, the quantity of slag is few, and the zinc metal loss is few; Metal recovery rate is high, thus the middle supernatant of the iron-holder of obtaining≤20mg/l.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 carries out the schematic flow sheet of the method for deironing for the autoclave that utilizes according to the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to utilizing autoclave to carry out the method for deironing in figure 1 a kind of zinc hydrometallurgy production of description according to the embodiment of the invention.
The method of utilizing autoclave to carry out deironing in the zinc hydrometallurgy production according to the embodiment of the invention, as shown in Figure 1, comprise the steps:
At first, two sections leach liquors and neutralizing agent that one section pressurized acid leaching, two sections pressurization neutralizations are obtained are passed in the autoclave, and in autoclave, feed oxygenant, to form mixed solution.In examples more of the present invention, neutralizing agent is formed by raw materials mix such as calcium stone flours.
Then, the temperature of control in the autoclave is that 65-90 ℃, pressure are at 0.2-0.5Mpa.
Then, mix the liquid scheduled time with desired speed, at this moment, iron is the ferric hydroxide precipitate separation to be removed, and adsorbs two sections arsenic, antimony coprecipitations in the leach liquor simultaneously.
Then, mixed solution is filtered to obtain the middle supernatant that iron-holder≤20mg/l and terminal point PH are 5.0-5.2.
At last, the centering supernatant carries out purification and impurity removal.
According to the method for utilizing autoclave to carry out deironing of the embodiment of the invention, the deferrization process flow process is brief, and is simple to operate; The neutralizing agent consumption is few, and the quantity of slag is few, the zinc metal loss is few, and metal recovery rate is high; Not only can obtain the middle supernatant of iron-holder≤20mg/l; And this method of utilizing autoclave to carry out deironing does not need steam to heat, and practices thrift steam, reduces energy consumption.
Preferably, the scheduled time is 25-40min.Thus, not only thoroughly deironing, and time is short.
Further, desired speed is 80-120r/min.
In some embodiments of the invention, oxygenant is an oxygen, and alternatively, oxygen is oxygen-rich air or industrial pure oxygen, makes that not only the oxygenant consumption is few, can eliminate the impurity that traditional Manganse Dioxide is brought mixed solution into simultaneously.
According to the method for utilizing autoclave to carry out deironing of the embodiment of the invention, the deferrization process flow process is brief, and is simple to operate; Do not need steam to heat, practice thrift steam, reduce energy consumption; Activity duration is by foreshortening to 25-40min in traditional 3-4 hour; Only be 15% of traditional technology, and the neutralizing agent consumption is few, calcium stone flour unit consumption is reduced to less than 100kg/tZn from traditional 400kg/tZn in the neutralizing agent.And utilize oxygen to replace Manganse Dioxide as oxygenant, the oxygenant consumption is few, and the oxygen consumption is 10-14kg/tZn; Eliminate Manganse Dioxide simultaneously and bring the impurity in the mixed solution into, the quantity of slag is few, and the zinc metal loss is few; Metal recovery rate is high, thus the middle supernatant of the iron-holder of obtaining≤20mg/l.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (5)
1. utilize autoclave to carry out the method for deironing in a zinc hydrometallurgy production, it is characterized in that, comprise the steps:
S1, two sections leach liquors that one section pressurized acid leaching, two sections pressurization neutralizations are obtained and neutralizing agent are passed in the autoclave, and in autoclave, feed oxygenant, to form mixed solution;
S2, the temperature of control in the autoclave are that 65-90 ℃, pressure are at 0.2-0.5Mpa;
S3, stir the said mixed solution scheduled time with desired speed;
S4, said mixed solution is filtered to obtain the middle supernatant that iron-holder≤20mg/l and terminal point PH are 5.0-5.2;
S5, supernatant in said is carried out purification and impurity removal.
2. the method for utilizing autoclave to carry out deironing according to claim 1 is characterized in that, the said scheduled time is 25-40min.
3. the method for utilizing autoclave to carry out deironing according to claim 2 is characterized in that, said desired speed is 80-120r/min.
4. according to each described method of utilizing autoclave to carry out deironing among the claim 1-3, it is characterized in that said oxygenant is an oxygen.
5. the method for utilizing autoclave to carry out deironing according to claim 4 is characterized in that, said oxygen is oxygen-rich air or industrial pure oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100615562A CN102586601A (en) | 2012-03-09 | 2012-03-09 | Method for removing iron by utilizing autoclave during zinc hydrometallurgy production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100615562A CN102586601A (en) | 2012-03-09 | 2012-03-09 | Method for removing iron by utilizing autoclave during zinc hydrometallurgy production |
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| CN102586601A true CN102586601A (en) | 2012-07-18 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194599A (en) * | 2013-04-25 | 2013-07-10 | 大兴安岭云冶矿业开发有限公司 | Method for processing zinc sulfide concentrated ore |
| CN104004913A (en) * | 2014-05-26 | 2014-08-27 | 中国恩菲工程技术有限公司 | Method for removing iron from iron-containing zinc sulfate solution |
| CN104004912A (en) * | 2014-05-26 | 2014-08-27 | 中国恩菲工程技术有限公司 | Method for removing iron from iron-containing solution |
| CN105002354A (en) * | 2015-07-28 | 2015-10-28 | 昆明理工大学 | Method for leaching zinc and other valuable metal in zinc sulfide ore through medium-and-low-pressure oxygen enrichment |
| CN105296755A (en) * | 2015-11-20 | 2016-02-03 | 金川集团股份有限公司 | Method for removing iron in nonmetal high nickel matte pressure leachate |
| CN105969999A (en) * | 2016-05-10 | 2016-09-28 | 云南永昌铅锌股份有限公司 | Leaching method for zinc sulfide concentrate |
| CN107312930A (en) * | 2017-07-07 | 2017-11-03 | 金川集团股份有限公司 | A kind of low nickel matte leaching solution pyrolysis is except the method for iron |
| CN107460318A (en) * | 2017-08-30 | 2017-12-12 | 河南豫光金铅股份有限公司 | A kind of zinc oxide leaches the removal methods of iron in liquid after heavy indium |
| CN108728667A (en) * | 2018-05-29 | 2018-11-02 | 南丹县南方有色金属有限责任公司 | A kind of method that oxygen removes iron |
| CN116272667A (en) * | 2023-04-14 | 2023-06-23 | 云锡文山锌铟冶炼有限公司 | Device and method for online cleaning scale and pressure compensation of discharge pipeline of iron removal autoclave |
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| CN1602365A (en) * | 2001-12-13 | 2005-03-30 | 奥托库姆普联合股份公司 | Method for Precipitating Iron as Hematite from a Zinc Sulphate Solution |
| CN101003854A (en) * | 2007-01-22 | 2007-07-25 | 中国科学院过程工程研究所 | New method for soaking out enriched ores of high indium, high iron, and high sulfur zinc |
| CN101591733A (en) * | 2009-06-22 | 2009-12-02 | 云南永昌铅锌股份有限公司 | Precipitating alum and removing iron method in the high-iron zinc sulfide concentrate pressurized acid leaching still |
| CN102134654A (en) * | 2010-01-21 | 2011-07-27 | 云南冶金集团股份有限公司 | Treatment method of zinc sulfide ore concentrates |
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2012
- 2012-03-09 CN CN2012100615562A patent/CN102586601A/en active Pending
Patent Citations (4)
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| CN1602365A (en) * | 2001-12-13 | 2005-03-30 | 奥托库姆普联合股份公司 | Method for Precipitating Iron as Hematite from a Zinc Sulphate Solution |
| CN101003854A (en) * | 2007-01-22 | 2007-07-25 | 中国科学院过程工程研究所 | New method for soaking out enriched ores of high indium, high iron, and high sulfur zinc |
| CN101591733A (en) * | 2009-06-22 | 2009-12-02 | 云南永昌铅锌股份有限公司 | Precipitating alum and removing iron method in the high-iron zinc sulfide concentrate pressurized acid leaching still |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194599A (en) * | 2013-04-25 | 2013-07-10 | 大兴安岭云冶矿业开发有限公司 | Method for processing zinc sulfide concentrated ore |
| CN104004912B (en) * | 2014-05-26 | 2016-06-01 | 中国恩菲工程技术有限公司 | Iron-containing liquor is carried out the method for deironing |
| CN104004913A (en) * | 2014-05-26 | 2014-08-27 | 中国恩菲工程技术有限公司 | Method for removing iron from iron-containing zinc sulfate solution |
| CN104004912A (en) * | 2014-05-26 | 2014-08-27 | 中国恩菲工程技术有限公司 | Method for removing iron from iron-containing solution |
| CN104004913B (en) * | 2014-05-26 | 2016-06-01 | 中国恩菲工程技术有限公司 | Iron content solution of zinc sulfate is carried out the method for deironing |
| CN105002354A (en) * | 2015-07-28 | 2015-10-28 | 昆明理工大学 | Method for leaching zinc and other valuable metal in zinc sulfide ore through medium-and-low-pressure oxygen enrichment |
| CN105296755A (en) * | 2015-11-20 | 2016-02-03 | 金川集团股份有限公司 | Method for removing iron in nonmetal high nickel matte pressure leachate |
| CN105296755B (en) * | 2015-11-20 | 2018-06-08 | 金川集团股份有限公司 | A kind of method that non-metallic high nickel matte pressureleaching solution removes iron |
| CN105969999A (en) * | 2016-05-10 | 2016-09-28 | 云南永昌铅锌股份有限公司 | Leaching method for zinc sulfide concentrate |
| CN107312930A (en) * | 2017-07-07 | 2017-11-03 | 金川集团股份有限公司 | A kind of low nickel matte leaching solution pyrolysis is except the method for iron |
| CN107460318A (en) * | 2017-08-30 | 2017-12-12 | 河南豫光金铅股份有限公司 | A kind of zinc oxide leaches the removal methods of iron in liquid after heavy indium |
| CN108728667A (en) * | 2018-05-29 | 2018-11-02 | 南丹县南方有色金属有限责任公司 | A kind of method that oxygen removes iron |
| CN116272667A (en) * | 2023-04-14 | 2023-06-23 | 云锡文山锌铟冶炼有限公司 | Device and method for online cleaning scale and pressure compensation of discharge pipeline of iron removal autoclave |
| CN116272667B (en) * | 2023-04-14 | 2025-07-22 | 云锡文山锌铟冶炼有限公司 | Device and method for online cleaning scale and pressure compensation of discharge pipeline of iron removal autoclave |
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Application publication date: 20120718 |