CN110453070A - A method of extracting recycling nickel directly from lateritic nickel ore leaching liquor - Google Patents
A method of extracting recycling nickel directly from lateritic nickel ore leaching liquor Download PDFInfo
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- CN110453070A CN110453070A CN201910183593.2A CN201910183593A CN110453070A CN 110453070 A CN110453070 A CN 110453070A CN 201910183593 A CN201910183593 A CN 201910183593A CN 110453070 A CN110453070 A CN 110453070A
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- Prior art keywords
- nickel
- resin
- grams per
- lateritic
- acid extract
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 223
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000002386 leaching Methods 0.000 title description 2
- 238000004064 recycling Methods 0.000 title description 2
- 229920005989 resin Polymers 0.000 claims abstract description 72
- 239000011347 resin Substances 0.000 claims abstract description 72
- 239000000284 extract Substances 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 26
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 239000003480 eluent Substances 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 17
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003456 ion exchange resin Substances 0.000 claims description 5
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 5
- 238000010828 elution Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052742 iron Inorganic materials 0.000 abstract description 17
- 229920001429 chelating resin Polymers 0.000 abstract description 14
- 239000011777 magnesium Substances 0.000 abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 abstract description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011575 calcium Substances 0.000 abstract description 5
- 229910052791 calcium Inorganic materials 0.000 abstract description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 52
- 229910001453 nickel ion Inorganic materials 0.000 description 15
- 235000021110 pickles Nutrition 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
- 241001062009 Indigofera Species 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000006210 lotion Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 210000002381 plasma Anatomy 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- LXXKJGXDEZDJOM-UHFFFAOYSA-N [Fe].[Mg].[Ca] Chemical compound [Fe].[Mg].[Ca] LXXKJGXDEZDJOM-UHFFFAOYSA-N 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009854 hydrometallurgy Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 125000004014 thioethyl group Chemical group [H]SC([H])([H])C([H])([H])* 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- WOXFMYVTSLAQMO-UHFFFAOYSA-N 2-Pyridinemethanamine Chemical compound NCC1=CC=CC=N1 WOXFMYVTSLAQMO-UHFFFAOYSA-N 0.000 description 1
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical group CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 1
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical compound [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001813 natrojarosite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical group 0.000 description 1
- 150000003053 piperidines Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
This method discloses a kind of method that nickel is extracted directly from lateritic nickel ore acid extract, nickel content 0.5-5 grams per liter in lateritic nickel ore acid extract, iron content 40-70 grams per liter, calcium and magnesium 10-60 grams per liter, pH acidic environment.Mine acid extract (0.5-20bv/h) after chelating resin column realizes nickel by resin adsorption, and the foreign ions such as ferrimanganic calcium and nickel separate.Nickeliferous resin passes through eluent, obtains higher degree nickel sulfate, and nickel concentration is greater than the nickel sulfate solution of 35 grams per liters, and iron content is less than 0.1 grams per liter.This method is easy to operate, produces less energy intensive, and no organic contamination, product purity is higher, and resin circulating repetition uses, and cost is relatively low.
Description
Technical field
The present invention relates to a kind of methods that the chelating resin for extracting nickel ion for lateritic nickel ore pickle liquor mentions nickel, belong to wet
Method field of metallurgy.
Background technique
The corrosion resistance of metallic nickel is splendid, and plating can prevent from getting rusty on other metals, it may also be used for catalyst.The world
Upper lateritic nickel ore is distributed in the tropic countries within 30 degree of equator north and south, concentrates on circum pacific tropical and subtropical zone area, main
There is Cuba, Brazil, Indonesia, Philippine is Australian, and Guinea etc., China's nickel resources are concentrated mainly on Gansu, Xinjiang, cloud
South, the ground such as Jilin, wherein the nickel resources accounting of Gansu Jinchang is huge, is only second to Canadian Sudbury nickel minerals, occupies the world
Two.Lateritic nickel ore extracts nickel metal, and there are mainly two types of technique, hydrometallurgy, two kinds of sides of pyrometallurgical smelting (electric furnace process and blast furnace process)
Method is each has something to recommend him, and this method is hydrometallurgy class.
China is also the big producer and demand big country of nickel, and wet process nickel production technology is mainly first peracid acidleach nickel minerals, is obtained
To Ni:1~2%, Fe:10~15%, Mg:10~15%, SiO2: 30~40% etc., recycle precipitated iron, the side such as precipitation of aluminium silicon
Method purifies nickel sulfate solution.
Lateritic nickel ore ingredient
| Ni | Fe | Mg | SiO2 | Al |
| 0.5-2.5% | 10-15% | 10-15% | 30-40% | 1-5% |
Lateritic nickel ore obtains nickel content in 0.5-5 grams per liter after vitriol lixiviation goes out, and iron content 30-50 grams per liter, magnesium contains
20-50 grams per liter is measured, for pH less than 2.5 strong acid environments, the key after soaking mine is exactly the separating-purifying of nickel.Conventional method is using extraction
It follows the example of by multi-step impurity removal, obtains nickel sulfate solution, process complicated technology is difficult to control, and processing accuracy is not high, and environment is unfriendly.
Summary of the invention
The present invention provides a kind of method for mentioning nickel for lateritic nickel ore pickle liquor, using ion exchange resin method one-step method
Separating-purifying nickel ion obtains purer nickel sulfate solution and using concentrate crosses process to obtain the pure nickel sulfate of high concentration molten
Liquid.This method proposes the nickel sulfate solution purity is high that nickel separation purity is good, obtains.Technical scheme is as follows:
A method of directly nickel is mentioned from lateritic nickel ore acid extract, comprising the following steps:
(1) acid extract of lateritic nickel ore is passed through into ion exchange resin column；
(2) it is eluted after resin adsorption is saturated using eluant, eluent, resin is parsed, the higher sulphur of purity is obtained
Sour nickel solution.
In a preferred embodiment of the invention, ion exchange resin described in step (1) refers to patent
Amino nitrogen-containing heterocycle resin or same type resin described in CN201410439072.6.
In a preferred embodiment of the invention, the process of elution described in step (2) is using mode is applied, to tree
The parsing of rouge is carried out using segmented mode, and parsing efflux is divided into n parts, wherein 1 part is qualifying liquid, n-1 parts are lean solution；So
N-1 parsing resin is parsed with these lean solutions substep afterwards, finally with nickel remaining on the sulfuric acid solution parsing resin newly matched, stream
Liquid Fraction collection out respectively obtains qualifying liquid and n-1 parts of lean solutions；Wherein, n is integer；Preferably, n=3.
In a preferred embodiment of the invention, the acid extract pH of lateritic nickel ore described in step (1) exists
Between 0.5-5.
In a preferred embodiment of the invention, the pH value of the acid extract of lateritic nickel ore described in step (1)
It adjusts, the progress such as sodium hydroxide, potassium hydroxide, calcium oxide, magnesia can be used.
In a preferred embodiment of the invention, the acid extract temperature of lateritic nickel ore described in step (1) is
10-80 DEG C, preferably 30-60 DEG C.
In a preferred embodiment of the invention, eluant, eluent described in step (2) is sulfuric acid solution.
In a preferred embodiment of the invention, the concentration of the sulfuric acid solution is 1-20%, preferably 5-15%,
More preferable 10-15%.
In a preferred embodiment of the invention, the sulfuric acid eluted in slave saturated resin described in step (2)
Nickel content in nickel solution can achieve 30g/L or more.
The resin of patent CN201410439072.6 description, main functional group areWherein M is resin matrix,
The copolymer that can be styrene and divinylbenzene is also possible to the copolymer (hereinafter referred to as Resin A) of phenol and aldehyde；
R can be H, be also possible to the group with hydroxyl, sulfydryl, amide or ester group, such as CH2CH2OH、CH2CH2CH2OH、
CH2CH2O CH2CH2OH、CH2CH(OH)CH3、CH2(CH2)5OH、CH2CH2SH、CH2CH2CH2SH、CH2CH2S CH2CH2SH、
CH2CH(SH)CH3、CH2(CH2)5SH、CH2CH2(CO)NHCH2、CH2CH2(CO)O CH2CH2Deng can also be contain identical with Q
It is nitrogen hetero-cycles group functionalized.
Q is nitrogen-containing heterocycle substance, can be pyridine, imidazoles, piperidines, indoles etc., such as
Deng wherein T represents the connection position of nitrogen-containing heterocycle and resin.
The resin similar with the resin of patent CN201410439072.6 description is also just like patent US-A4098867, description
A kind of miscellaneous dispersion gel type chelating resin, this resin have following structure formula as functional group (hereinafter referred to as resin B):
M is resin matrix；
Q is-CH2- a group；
Y can be the alkyl of H or C1-C4 and
R is-CH2COOH；
And patent CN102015107A provides a kind of preparation method of Picolylamine resins, the resin be suitable for from
Valuable metal especially copper (hereinafter referred to as resin C), resin functionality's structure are extracted in aqueous solution are as follows:
M is resin matrix
R1 is picoline
R2 is the organic group with functional groups such as thioether, hydroxyl, amino, phosphates
M=1-4, n+p=2
Above-mentioned several resins can be used as the extraction for nickel in lateritic nickel ore acid extract of the invention and use.
The type resin, which has, is not afraid of high-speed rail environment, can be in the ability of high-selectivity adsorption nickel under acidic environment.
The present invention uses the resinoid, can be directly by the acid extract of lateritic nickel ore when temperature is 10-80 DEG C, and pH is
0.5-2, iron content flow through resin column under conditions of 30g/L with 0.5-10 times of resin volume/h flow velocity, the nickel in pickle liquor
Then by resin adsorption, the impurity such as Ca, Mg and Fe then flow out resin column.Nickel is carried out using acid extract of the resin to lateritic nickel ore
It extracts, it is desirable that the content of copper ion in pickle liquor has to be lower than 1ppm, because the resinoid has preferably copper with respect to for nickel
Selectivity.
When resin adsorption saturation (when i.e. nickel concentration is suitable in inlet and outlet solution), resin is washed with water, Zhi Houyong
Sulfuric acid solution, sulfuric acid solution can use 0.5-2.5mol/L, parse to resin, and the temperature of parsing is controlled at 20-50 DEG C,
Flow control is parsed in 0.5-5BV, the nickel adsorbed on resin is resolved in sulfuric acid solution and obtains nickel sulfate solution.In order to
The nickel sulfate solution of higher concentration is obtained, the present invention is carried out the parsing of resin using segmented mode using mode is applied, such as will
Parsing efflux is divided into three lean solutions, two lean solutions, a lean solution, then with these lean solutions substep parsing one parsing resin, secondary solution
Resin is analysed, parses resin three times, nickel remaining on resin is finally parsed with the sulfuric acid solution newly matched, efflux Fraction collection divides
Qualifying liquid is not obtained, and three lean solutions, two lean solutions, a lean solution can be recycled after resin washing later.
Also optional patent is " a kind of from nickeliferous for chelating resin of the present invention for extracting nickel from lateritic nickel ore acid extract
Extract nickel in solution and prepare the preparation method of nickel sulfate chelating resin " described in resin (hereinafter referred to as resin D), resin tool
Some functional groups are as follows:
Wherein R=CH2CH2、CH2CH2NH2CH2CH2、CH2CH2NH2CH2CH2NH2CH2CH2Equal polyethylene polyamines class.
Its characteristic of the resinoid be the chelating agent containing elements such as N, O, P have stronger chelating systems, can with it is a variety of
Metal ion-chelant forms stable metallo-chelate.
The characteristics of resinoid, can be used acid solution and parse to resin, not need to make the transition after parsing, can be direct
Extraction for nickel in lateritic nickel ore acid extract.The extraction of nickel in the applicable lateritic nickel ore acid extract of this resin, it is desirable that red
The pH value of native nickel minerals acid extract requires pickle liquor to need to remove ferric iron between 0.5-7.Removal ferric iron can be adopted
Material liquid pH value is adjusted to 3 or so, or use Huang with calcium oxide, sodium hydroxide, potassium hydroxide, magnesia etc. are added into pickle liquor
Natrojarosite mode removes iron.
The present invention uses the resinoid, can be directly by the acid extract of lateritic nickel ore when temperature is 10-80 DEG C, and pH is
0.5-7, ferric iron content flow through resin column, acidleach under the conditions of 0.1g/L is below with 0.5-10 times of resin volume/h flow velocity
For nickel in liquid then by resin adsorption, the impurity such as calcium and magnesium then flow out resin column.
When resin adsorption saturation (when i.e. nickel concentration is suitable in inlet and outlet solution), resin is washed with water, Zhi Houyong
Sulfuric acid solution, sulfuric acid solution can use 0.5-2.5mol/L, parse to resin, and the temperature of parsing is controlled at 20-50 DEG C,
Flow control is parsed in 0.5-5BV, the nickel adsorbed on resin is resolved in sulfuric acid solution and obtains nickel sulfate solution.In order to
The nickel sulfate solution of higher concentration is obtained, the present invention is carried out the parsing of resin using segmented mode using mode is applied, such as will
Parsing efflux is divided into three lean solutions, two lean solutions, a lean solution, then with these lean solutions substep parsing one parsing resin, secondary solution
Resin is analysed, parses resin three times, nickel remaining on resin is finally parsed with the sulfuric acid solution newly matched, efflux Fraction collection divides
Qualifying liquid is not obtained, and three lean solutions, two lean solutions, a lean solution can be recycled after resin washing later.
Adopting nickel content in the nickel sulfate solution being obtained by the present invention can achieve 30g/L or more, according to different
The feed liquid quality of lateritic nickel ore acid extract, such as the difference of nickel content, nickel concentration can also change in obtained nickel sulfate solution, most
Height can achieve 40g/L or more, preferably reach 50g/L or more.
A kind of method for extracting nickel directly from lateritic nickel ore acid extract provided by the present invention is to lead to acid extract
Cross ion exchange resin column, nickel ion is adsorbed and is captured by resin, other ionic iron magnesium calcium plasmas are flowed out with solution, realize nickel with
Iron, magnesium, the separation of calcium plasma.Resin after adsorption saturation elutes again by eluant, eluent, obtains the higher nickel sulfate of purity
Solution.
The present invention is to use sulphur without adsorbing iron magnesium calcium plasma, elution using selective absorption nickel ion of chelating resin
Acid does not bring new foreign ion into, to carry out nickel purification & isolation purpose, it is contemplated that economic factor, nickel sulfate liquid use the set side of washing
Method improves concentration, reduces energy consumption.
The chelating resin that the present invention uses elution processes after once mentioning nickel are simple, and operation is easy, pollution-free, can obtain height
The solution of concentration, and the advantages of reducing cost can be recycled in resin.
Specific embodiment
It is described in further detail below with reference to example:
Implement one: pH=0.5, different temperatures compares under the conditions of different nickel concentrations
Lateritic nickel ore pickle liquor (Guangxi), pH=0.5, nickel content 0.5-5 grams per liter, iron content 7-40 grams per liter, content of magnesium
7-40 grams per liter goes out oral fluid nickel ion after different temperatures absorption and drops to by chelating resin lsc-495 (Xi'an indigo plant knows science and technology)
0.2-0.4 grams per liter is hereinafter, iron nickel ratio reduces by 134 times.
Implement two: pH=1.15, different temperatures, absorption nickel ion situation compares under the conditions of different nickel concentrations
Lateritic nickel ore pickle liquor (Guangxi), pH=1.15, nickel content 0.5-5 grams per liter, iron content 7-40 grams per liter, content of magnesium
7-40 grams per liter, outlet nickel ion concentration drops to after chelating resin LSC-495 (Xi'an indigo plant dawn science and technology) absorption under different temperatures
0.2-1.0 grams per liter is hereinafter, iron nickel ratio reduces by 140 times.
Example three: pH=2.5, different temperatures compare under the conditions of different nickel concentrations
Lateritic nickel ore pickle liquor (Guangxi), pH=2.5 nickel content 0.5-5 grams per liter, iron content 5-40 grams per liter, content of magnesium 7-
40 grams per liters, different temperatures feed liquid export nickel ion concentration drop by chelating resin LSC-495 (Xi'an indigo plant dawn science and technology) after absorption
To under 10 milligrams, set, which washes rear nickel concentration, can arrive 10-40 grams per liter.Set washing lotion iron concentration most low energy drops to 0.1-0.6 grams per liter
Below.
Example four: pH=3.5, different temperatures compare under the conditions of different nickel concentrations
Lateritic nickel ore pickle liquor (Guangxi), pH=3.5 nickel content 0.5-5 grams per liter, iron content 1-3 grams per liter, content of magnesium 7-
40 grams per liters, different temperatures feed liquid is by a kind of patent " preparation side for extracting nickel from solution containing nickel and preparing nickel sulfate chelating resin
Method " described in chelating resin (resin D), after absorption export nickel ion concentration drop to 0.01 grams per liter hereinafter, set wash rear nickel concentration
10-49 grams per liter can be arrived.Set washing lotion iron concentration most low energy drops to 0.1 grams per liter or less.
Example five: pH=5, different temperatures compare under the conditions of different nickel concentrations
Lateritic nickel ore pickle liquor (Guangxi), pH=5, nickel content 0.5-5 grams per liter, iron content is less than 1 grams per liter, content of magnesium 7-
40 grams per liters, different temperatures feed liquid is by a kind of patent " preparation side for extracting nickel from solution containing nickel and preparing nickel sulfate chelating resin
Method " described in chelating resin (resin D), after absorption export nickel ion concentration drop to 0.01 grams per liter hereinafter, set wash rear nickel concentration
10-49 grams per liter can be arrived.Set washing lotion iron concentration most low energy drops to 0.1 grams per liter or less.
From the experimental data of embodiment one to five it is found that resin is variant to nickel ion selection in feed liquid under difference pH environment
Property, different temperatures is also variant to resin adsorption.In conjunction with economical and operational, Test Summary goes out: temperature is at 30-50 DEG C
Preferably (nickel concentration can be improved by 4 grams per liters to 49 grams per liters nickel ion refining effect, and other impurities ion can be reduced to 0.2 grams per liter
Below).Use 10-15% sulfuric acid as desorbed solution after nickel ion purification, test repeatability data are more stable, to nickel ion concentrate
Effect is obvious, compared to nickel ion save the cost is concentrated by evaporation, reduces energy consumption.
Above example only for the purpose of description, is not intended to restrict the invention, all institutes within the spiritual principles invented very much
Any modification, equivalent substitution, improvement and etc. done should be included within the scope of the present invention.
Claims (8)
1. the method that one kind directly mentions nickel from lateritic nickel ore acid extract, which comprises the following steps:
(1) acid extract of lateritic nickel ore is passed through into ion exchange resin column；
(2) it is eluted after resin adsorption is saturated using eluant, eluent, resin is parsed, the higher nickel sulfate of purity is obtained
Solution.
2. the method according to claim 1, wherein the process of elution described in step (2) is using applying mode,
The parsing of resin is carried out using segmented mode, parsing efflux is divided into n parts, wherein 1 part is qualifying liquid, n-1 parts are poor
Liquid；Then n-1 parsing resin is parsed with these lean solutions substep, finally with remaining on the sulfuric acid solution parsing resin newly matched
Nickel, efflux Fraction collection respectively obtain qualifying liquid and n-1 parts of lean solutions；Wherein, n is integer；Preferably, n=3.
3. the method according to claim 1, wherein the acid extract pH of lateritic nickel ore described in step (1)
Between 0.5-5.
4. according to the method described in claim 3, it is characterized in that, the acid extract of lateritic nickel ore described in step (1)
PH value is adjusted, and the progress such as sodium hydroxide, potassium hydroxide, calcium oxide, magnesia can be used.
5. the method according to claim 1, wherein the acid extract temperature of lateritic nickel ore described in step (1)
Degree is 10-80 DEG C, preferably 30-60 DEG C.
6. the method according to claim 1, wherein eluant, eluent described in step (2) is sulfuric acid solution.
7. according to the method described in claim 6, it is characterized in that, the concentration of the sulfuric acid solution is 1-20%, preferably 5-
15%, more preferable 10-15%.
8. the method according to claim 1, wherein eluting in slave saturated resin described in step (2)
Nickel content in nickel sulfate solution can achieve 30g/L or more.
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Cited By (3)
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| CN113789443A (en) * | 2021-09-15 | 2021-12-14 | 中国恩菲工程技术有限公司 | Resin adsorption method for nickel and cobalt in laterite-nickel ore |
| CN115161495A (en) * | 2022-08-18 | 2022-10-11 | 上海锦源晟新能源材料有限公司 | Method for separating and enriching cobalt from high-impurity cobalt sulfate solution |
| CN117004830A (en) * | 2023-09-28 | 2023-11-07 | 上海稀固科技有限公司 | Method for recovering nickel from nickel-containing iron material liquid |
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| CN115161495A (en) * | 2022-08-18 | 2022-10-11 | 上海锦源晟新能源材料有限公司 | Method for separating and enriching cobalt from high-impurity cobalt sulfate solution |
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