CN105296755B - A kind of method that non-metallic high nickel matte pressureleaching solution removes iron - Google Patents
A kind of method that non-metallic high nickel matte pressureleaching solution removes iron Download PDFInfo
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- CN105296755B CN105296755B CN201510813253.5A CN201510813253A CN105296755B CN 105296755 B CN105296755 B CN 105296755B CN 201510813253 A CN201510813253 A CN 201510813253A CN 105296755 B CN105296755 B CN 105296755B
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- Prior art keywords
- iron
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- pressureleaching
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- liquid
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 78
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 241000273930 Brevoortia tyrannus Species 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 230000001698 pyrogenic effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000002386 leaching Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229910000628 Ferrovanadium Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000000159 acid neutralizing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical group [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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 present invention provides a kind of methods that non-metallic high nickel matte pressureleaching solution removes iron, pressureleaching solution is after filtering, it is incorporated a certain amount of neutralizer, it is pressurized to be pumped into after the heating of ore pulp heater into except iron reaction kettle, during the reaction by the way that certain kettle temperature and kettle is controlled to press and be passed through oxygen and ensure the oxidizing atmosphere reacted, except liquid realizes slag-liquid separation by filter press after iron；This method can realize that non-metallic high nickel matte pressureleaching solution is secondary except the purpose of iron under conditions of continuous work, except iron rate is up to more than 85%.It realizes iron and forces open circuit, greatly reduce influence of the iron to pressure leaching production line, good effect is achieved during industrial applications.
Description
Technical field
The present invention relates to field of metallurgy, and in particular to a kind of method that non-metallic high nickel matte pressureleaching solution removes iron.
Background technology
The content of impurity F e is the element being strictly required in pressure leaching production line solution system, generally requires one section
Normal pressure leaching liquid is less than 0.01g/L containing Fe, therefore it is required that carrying out depth removing to the iron of solution system during pressure leaching；
Common method for removing iron is during leaching while realizes the hydrolytic precipitation of iron, but in actual mechanical process, the leaching of nickel
Go out the removal with iron to be often difficult to get both, the situation of iron enrichment is will appear in production practices.
Invention content
The present invention provides a kind of non-metallic high nickel matte pressureleaching solution and removes to overcome problems of the prior art
The method of iron.
The method that the non-metallic high nickel matte pressureleaching solution of the present invention removes iron, includes the following steps：
Step is 1.:Two sections of pressureleaching solutions of non-metallic high nickel matte are carried out after once filtering, control two sections of normal pressure leachings
The pH for going out liquid is 2.5~4.0；
Wherein, the Fe contents of two sections of pressureleaching solutions are 5~8g/L；
Step is 2.:By step 1. in treated that two sections of pressureleaching solutions add in except in iron still, being added by ore pulp heater
Heat, except iron still reaction temperature is 105~130 DEG C；
Wherein, except iron still pressure is 0.4~0.5mPa；
Step is 3.:By step 2. treated two sections of pressureleaching solutions, except liquid enters after flash tank decompression cooling after iron
Except liquid bath after iron, except after iron liquid through 150m2Filter press press filtration, after filter liquid return two sections pressurization pulp dosage bunkers, except slag after iron
Pyrogenic process system is paid outside.
The step 1. in, when two sections of pressureleaching solution pH be less than 2.5 when, consolidated with ore pulp after two sections of pressure leachings according to liquid
Neutralizer is prepared than 20~25/1, is used as neutralizer for liquid adjustment pH before removing iron.
The step 2. in, by controlling ore pulp heater steam flow and except iron still inner coil pipe steam flow ensures except iron
The reaction temperature of kettle is between 105~130 DEG C.
The step 2. in, control saturated vapor pressure in kettle, partial pressure of oxygen and tail gas regulating guarantee by adjusting kettle temperature
Except iron still kettle is pressed between 0.4~0.5mPa.
The present invention has the following advantages relative to the prior art：
(1), the present invention does not increase new equipment, after original production technology local flow improvement, pressureleaching solution is filtered
Enter afterwards except iron reaction kettle, certain kettle temperature, kettle pressure, partial pressure of oxygen and reaction pH is controlled to reach good de-ferrous effect；
(2) present invention is using original equipment autoclave as equipment for removing ferric ion, and technique prepares maturation, and post operation is simple, except iron
High degree of automation does not increase post labor intensity；
(3) the entire reaction of the present invention is carried out in autoclave, and heat utilization rate is high, can be significantly reduced heat damage
It loses.
(4) present invention can realize that non-metallic high nickel matte pressureleaching solution is secondary except the mesh of iron under conditions of continuous work
, except iron rate is up to more than 85%, realizes iron and force open circuit, greatly reduce influence of the iron to pressure leaching production line,
Good effect is achieved during industrial applications.
(5) present invention proposes a kind of new method that non-metallic high nickel matte pressureleaching solution is suitble to remove iron, and this method is even
The removing of iron in non-metallic high nickel matte pressureleaching solution is realized under conditions of continuous work, stabilizes pressure leaching production line,
High nickel leaching rate is obtained, it is easy to operate, good effect is achieved during industrial applications.
(6) present invention can carry out depth removing in solution system as a kind of auxiliary except iron means to iron.
Description of the drawings
Fig. 1 is the process flow chart of the present invention；
Fig. 2 is the equipment connection diagram of the present invention.
Specific embodiment
The method for removing iron to a kind of non-metallic high nickel matte pressureleaching solution of the present invention below in conjunction with attached drawing is done further
Detailed description.
As shown in Figure 1 and Figure 2, the method that a kind of non-metallic high nickel matte pressureleaching solution of the invention removes iron, according to " yellow
Sodium ferrovanadium method removes iron ", " class separation of iron in goethite form " and " hematite process remove iron " except the mechanism of iron, by two sections of pressureleaching solutions processes
After filter, be incorporated a certain amount of neutralizer, ensure except pH >=2.5 of liquid before iron, it is pressurized be pumped into ore pulp heater heat it is laggard
Enter pressurization except iron still, during the reaction by the way that certain kettle temperature and kettle is controlled to press and be passed through oxygen and ensure the oxidisability gas reacted
Atmosphere, except liquid realizes slag-liquid separation by filter press after iron.
(1) acidity, kettle temperature, the kettle pressure of two sections of pressurized leaching kettles of one section of pressurization slurry are controlled, ensures a high nickel
Leaching rate, while the Fe of two sections of pressureleaching solutions is controlled between 5~8g/L；
(2) a certain amount of neutralizer is prepared according to liquid-solid ratio 20~25/1 with ore pulp after two sections of pressure leachings, as neutralization
Agent is for except liquid adjustment pH uses before iron.
(3) two sections of pressureleaching solutions are passed through into 150m2Filter press carry out press filtration, liquid liquid into before except iron reaction kettle after filter
Slot；
(4) liquid pump after filter is entered into force (forcing) pump with pump, it is then pressurized to be pumped into the heating of ore pulp heater, it is desirable that be filtered after heating
Iron is removed in liquid temperature >=105 DEG C afterwards subsequently into except iron reaction kettle；
(5) except after iron liquid enter after flash tank decompression cooling except liquid bath after iron, except liquid is through filter press press filtration after iron, after filter
Liquid returns to two sections of normal pressure pulp dosage bunkers, and pyrogenic process system is paid in addition to slag after iron.
Embodiment 1：
Control is 2.5 except 105 DEG C of iron still reaction temperature, two sections of pressurized fluid pH, kettle pressure 0.45mPa.
Pressure is except iron result in table 1- low temperature
Embodiment 2：
110 DEG C of controlling reaction temperature, two sections of pressurized fluid pH are 3.0, kettle pressure 0.45mPa.
Pressure is except iron result in table 2- low temperature
Embodiment 3：
125 DEG C of controlling reaction temperature, except liquid pH is 3.5 before iron, kettle pressure 0.45mPa.
Pressure is except iron result in table 3- low temperature
Pressureleaching solution of the present invention after filtering, is incorporated a certain amount of neutralizer, ensures except pH >=2.5 of liquid before iron, warp
Force (forcing) pump enters after being pumped into the heating of ore pulp heater except iron reaction kettle, during the reaction by controlling certain kettle temperature and kettle pressure simultaneously
The oxidizing atmosphere that oxygen ensures reaction is passed through, except liquid realizes slag-liquid separation by filter press after iron；Except iron rate up to 85% with
On, it realizes iron and forces open circuit, greatly reduce influence of the iron to pressure leaching production line, obtained during industrial applications
Good effect.
Claims (1)
1. a kind of method that non-metallic high nickel matte pressureleaching solution removes iron, includes the following steps：
Step is 1.:Two sections of pressureleaching solutions of non-metallic high nickel matte are once filtered, two sections of pressureleaching solutions of control
PH is 2.5-4.0；
Wherein, the Fe contents of two sections of pressureleaching solutions are 5~8g/L, when two sections of pressureleaching solution pH are less than 2.5, are added with two sections
Ore pulp prepares neutralizer according to liquid-solid ratio 20 ~ 25/1 after pressure leaches, and is used as neutralizer for liquid adjustment pH before removing iron；
Step is 2.:By step 1. in treated that two sections of pressureleaching solutions are pumped into except in iron still, being heated, removed by ore pulp heater
Iron still reaction temperature is 105 ~ 130 DEG C；
Wherein, except iron still pressure is 0.4 ~ 0.5mPa, by controlling ore pulp heater steam flow and except iron still inner coil pipe steam
Flow ensures the reaction temperature except iron still between 105 ~ 130 DEG C；
Step is 3.:By step 2. treated two sections of pressureleaching solutions, except liquid enters after flash tank decompression cooling except iron after iron
Liquid bath afterwards, except after iron liquid through 150m2Filter press press filtration, liquid returns to two sections of pressurization pulp dosage bunkers after filter, except slag after iron in addition to pair
Pyrogenic process system, by adjusting kettle temperature come control saturated vapor pressure in kettle, partial pressure of oxygen and tail gas regulating guarantee remove iron still kettle pressure
Between 0.4 ~ 0.5mPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813253.5A CN105296755B (en) | 2015-11-20 | 2015-11-20 | A kind of method that non-metallic high nickel matte pressureleaching solution removes iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510813253.5A CN105296755B (en) | 2015-11-20 | 2015-11-20 | A kind of method that non-metallic high nickel matte pressureleaching solution removes iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105296755A CN105296755A (en) | 2016-02-03 |
| CN105296755B true CN105296755B (en) | 2018-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510813253.5A Active CN105296755B (en) | 2015-11-20 | 2015-11-20 | A kind of method that non-metallic high nickel matte pressureleaching solution removes iron |
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| CN (1) | CN105296755B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868295B (en) * | 2016-12-27 | 2018-07-31 | 河南豫光锌业有限公司 | The starting method of hematite process iron removal system in a kind of Zinc hydrometallurgy process |
| CN113957243B (en) * | 2021-10-22 | 2023-10-17 | 金川镍钴研究设计院有限责任公司 | Method for realizing open circuit of nickel, copper and iron in high-nickel matte and enriching noble metals |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195858A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Method for extracting nickel with pressure leaching of non-metal high nickel sulfonium material |
| CN101195857A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Solvent extraction method for acquiring alloy with magnetic separation copper bessemer matte |
| 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 |
| CN102586601A (en) * | 2012-03-09 | 2012-07-18 | 大兴安岭云冶矿业开发有限公司 | Method for removing iron by utilizing autoclave during zinc hydrometallurgy production |
-
2015
- 2015-11-20 CN CN201510813253.5A patent/CN105296755B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195858A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Method for extracting nickel with pressure leaching of non-metal high nickel sulfonium material |
| CN101195857A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Solvent extraction method for acquiring alloy with magnetic separation copper bessemer matte |
| 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 |
| CN102586601A (en) * | 2012-03-09 | 2012-07-18 | 大兴安岭云冶矿业开发有限公司 | Method for removing iron by utilizing autoclave during zinc hydrometallurgy production |
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| CN105296755A (en) | 2016-02-03 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240207 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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