CN109930010A - A method of organic matter in removing zinc hydrometallurgy solution - Google Patents
A method of organic matter in removing zinc hydrometallurgy solution Download PDFInfo
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- CN109930010A CN109930010A CN201910149378.0A CN201910149378A CN109930010A CN 109930010 A CN109930010 A CN 109930010A CN 201910149378 A CN201910149378 A CN 201910149378A CN 109930010 A CN109930010 A CN 109930010A
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- organic matter
- solution
- zinc hydrometallurgy
- zinc
- containing organic
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- 239000005416 organic matter Substances 0.000 title claims abstract description 103
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000011701 zinc Substances 0.000 title claims abstract description 53
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000009854 hydrometallurgy Methods 0.000 title claims abstract description 44
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 26
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 26
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 230000006911 nucleation Effects 0.000 claims abstract description 9
- 238000010899 nucleation Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 57
- 229920000159 gelatin Polymers 0.000 description 5
- 235000019322 gelatine Nutrition 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000001828 Gelatine Substances 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 238000007539 photo-oxidation reaction Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-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
- 238000000889 atomisation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000006385 ozonation reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- WQSRXNAKUYIVET-UHFFFAOYSA-N sulfuric acid;zinc Chemical compound [Zn].OS(O)(=O)=O WQSRXNAKUYIVET-UHFFFAOYSA-N 0.000 description 1
- 238000009858 zinc metallurgy Methods 0.000 description 1
Classifications
-
- 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 present invention relates to a kind of methods of organic matter in removing zinc hydrometallurgy solution, belong to field of chemical metallurgical technology.Zinc hydrometallurgy solution containing organic matter is stirred, gradually it is cooled to -20 DEG C ~ 10 DEG C, react 10min ~ 60min, nucleation is induced using organic matter, form the crystalline deposit containing organic matter, after reaction, after using crystalline deposit of the centrifugal filtration solid-liquor separation containing organic matter, the solution of zinc sulfate of removing organic matter is obtained.This method is in cooling reactor, there is biggish specific surface area and small organic molecule and solution of zinc sulfate qualitative difference using larger molecular organics, pass through the induction nucleation of organic matter, reaction forms the crystalline deposit containing organic matter, the removing for realizing organic matter by the method being separated by solid-liquid separation again, obtains qualified solution of zinc sulfate.The present invention has many advantages, such as that simple process, easily operated, organic matter removal efficiency is high.
Description
Technical field
The present invention relates to a kind of methods of organic matter in removing zinc hydrometallurgy solution, belong to field of chemical metallurgical technology.
Background technique
Content of organics is excessively high in the solution of zinc sulfate of zinc hydrometallurgy output to bring not solution purification and electrolytic deposition process
Benefit influences, and purification process zinc powder consumption is caused to increase, and Zinc electrolysis process current efficiency reduces, power consumption increases, cathode zinc lead doping
Deng harm.Therefore, the major issue that the organic matter in solution of zinc sulfate is always the concern of zinc hydrometallurgy industry how is removed.
There is the method for organic matter in removing solution: (1) active carbon adsorption.The porous structure of active carbon provides biggish
Surface area has stronger adsorption capacity to organic matter, can after reaching break through volume by the organic matter in adsorbing and removing solution
To be regenerated using steam activation.(2) gas floatation process.Gas floatation process is to be blasted using the hydrophobic property of organic matter in solution into solution
A large amount of micro air bubble, is adsorbed on organic matter on micro air bubble, so that organic matter is floated together by means of the buoyancy of bubble itself.In liquid
The three-phase froth layer being made of bubble, hydration organic matter is formed on face, and froth bed is separated with solution bulk, it is organic to reach removing
The purpose of object.(3) liquid film filtration method.By constructing filter membrane, separate organic matter and solution using the unfavourable balance of various concentration.(4)
Ultrasonic dehydration oil removing.Tiny oil droplets in solution are vibrated together with medium under the action of ultrasonic wave, but example of different sizes
Son has different vibration velocities, and elaioleucite will be collided mutually, and bond, be coalesced, and forms bulky grain oil droplet, and floating forms oil slick, with
Solution separation.(5) Ozonation and photooxidation method.Ozonation is the strong oxidizing property decomposing organic matter using ozone.Light
Oxidation is that the strong free radical decomposing organic pollutant of oxidability is generated under light radiation using oxidant.
Number of patent application is that the patent of " 201810707518.7 " discloses a kind of photooxidation removing wet process refining smelting zinc sulfuric acid
The method of organic matter in zinc solution, this method are to be uniformly mixed solution of zinc sulfate with hydrogen peroxide, then in the case where adding light source outside, into
Row photooxidation reaction realizes the decomposition and removing of organic matter.
Number of patent application is that the patent of " 201510456786.2 " discloses a kind of hypergravity and ozone-enhanced removing
The method of organic matter in solution of zinc sulfate, this method are oxygenation atomizations after heating solution of zinc sulfate, and the zinc sulfate after atomization is molten
Liquid sufficiently carries out reinforcing with ozone in hypergravity issuing equipment and reacts.The oxygen and solution for keeping super gravity field generator again follow
Ring obtains the qualified solution of zinc sulfate of removing organic matter.
Although the above method can remove the organic matter in solution of zinc sulfate, mainly removing that molecular weight is lesser can be dissolved with
Machine object, the organic matter big for molecular weight, such as gelatine, gelatin, ox glue, removal effect is poor, and there are complicated for operation, equipment to throw
Enter the disadvantages of big.Therefore, high efficiency is developed, the simple and easy new method that organic matter is removed from solution of zinc sulfate is still wet
The technical problem that method zinc metallurgy industry needs further to solve.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of method for removing organic matter in solution of zinc sulfate.This
Method is that have biggish specific surface area and small organic molecule and zinc sulfate using larger molecular organics in cooling reactor
The difference of SOLUTION PROPERTIES, by the induction nucleation of organic matter, reaction forms the crystalline deposit containing organic matter, then passes through solid-liquid
Isolated method realizes the removing of organic matter, obtains qualified solution of zinc sulfate.The present invention have simple process, it is easily operated,
The advantages that organic matter removal efficiency is high.
In order to achieve the above object, the invention is realized by the following technical scheme:
A method of the zinc hydrometallurgy solution containing organic matter is stirred, gradually by organic matter in removing zinc hydrometallurgy solution
- 20 DEG C ~ 10 DEG C are cooled to, 10min ~ 60min is reacted, nucleation is induced using organic matter, it is heavy to form the crystallization containing organic matter
It forms sediment, after reaction, after crystalline deposit of the centrifugal filtration solid-liquor separation containing organic matter, obtains the zinc sulfate of removing organic matter
Solution.
The zinc hydrometallurgy solution containing organic matter is by zinc hydrometallurgy output, and wherein zinc concentration is 40 ~ 155g/L, solution sulphur
0.01 ~ 180g/L of acid concentration.
Organic matter is calculated in the zinc hydrometallurgy solution containing organic matter with total organic carbon, and total organic carbon is greater than 35mg/L.
The zinc hydrometallurgy solution temperature containing organic matter is 35 DEG C ~ 65 DEG C.
The speed of agitator is 10 ~ 120 revs/min.
The detailed process gradually to cool down are as follows: temperature is down to as 25 ~ 30 with the cooling velocity of 1 ~ 2 DEG C/min when beginning
DEG C, it then proceedes to be down to -20 DEG C ~ 10 DEG C with the cooling velocity of 2 ~ 5 DEG C/min.
The beneficial effects of the present invention are: this method has biggish ratio using cooling reactor, using larger molecular organics
Surface area and small organic molecule and solution of zinc sulfate qualitative difference, by the induction nucleation of organic matter, reaction is formed
Crystalline deposit containing organic matter, and under conditions of quick solid-liquor separation, removing contains organic crystalline deposit, obtains qualified sulphur
Sour zinc solution.This method does not need additional chemical reagent, has simple process, easily operated, high excellent of organic matter removal efficiency
Point.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
The method of organic matter in the removing zinc hydrometallurgy solution, the zinc hydrometallurgy solution by 1000mL containing organic matter (contain organic matter
Zinc hydrometallurgy solution by the temperature of zinc hydrometallurgy output be 38 DEG C of waste electrolyte, zinc concentration 40g/L, sulfuric acid concentration
180g/L;Organic matter is calculated in zinc hydrometallurgy solution containing organic matter with total organic carbon, total organic carbon 95.3mg/L, organic matter
Type includes the small organic molecules such as the larger molecular organics such as gelatine, mineral oil and ethyl xanthate, fatty acid), it is placed in cooling anti-
It answers in device and is stirred (120 revs/min), be gradually cooled to -20 DEG C, detailed process are as follows: with the cooling speed of 1 DEG C/min when beginning
It is 25 DEG C that degree, which is down to temperature, then proceedes to be down to -20 DEG C with the cooling velocity of 2 DEG C/min, reacts 10min, lured using organic matter
Nucleation is led, the crystalline deposit containing organic matter, after reaction, the knot using centrifugal filtration solid-liquor separation containing organic matter are formed
After crystalline substance precipitating, the solution of zinc sulfate of 982mL removing organic matter is obtained.
Testing result is that remove in the solution of zinc sulfate of organic matter total content of organic carbon be 18.5mg/L, organic matter it is de-
Except rate is 80.9%.
Embodiment 2
The method of organic matter in the removing zinc hydrometallurgy solution, the zinc hydrometallurgy solution by 1000mL containing organic matter (contain organic matter
Zinc hydrometallurgy solution by zinc hydrometallurgy output temperature be 37 DEG C of waste electrolyte, zinc concentration 46g/L, sulfuric acid concentration 165g/
L;Organic matter is calculated in zinc hydrometallurgy solution containing organic matter with total organic carbon, total organic carbon 89.1mg/L, organism kinds
Including the small organic molecules such as the larger molecular organics such as gelatin, lubricating oil and ethyl xanthate, fatty acid.It is placed in cooling reactor
(80 revs/min) are stirred, are gradually cooled to -10 DEG C, detailed process are as follows: are down to when beginning with the cooling velocity of 1 DEG C/min
Temperature is 25 DEG C, then proceedes to be down to -10 DEG C with the cooling velocity of 3 DEG C/min, reacts 30min, is induced and be nucleated using organic matter
Effect forms the crystalline deposit containing organic matter, after reaction, the crystalline deposit using centrifugal filtration solid-liquor separation containing organic matter
Afterwards, the solution of zinc sulfate of 975mL removing organic matter is obtained.
Testing result is that remove in the solution of zinc sulfate of organic matter total content of organic carbon be 22.0mg/L, organic matter it is de-
Except rate is 75.9%.
Embodiment 3
The method of organic matter in the removing zinc hydrometallurgy solution, the zinc hydrometallurgy solution by 1000mL containing organic matter (contain organic matter
Zinc hydrometallurgy solution be liquid before zinc hydrometallurgy that Wen Di is 35 DEG C is electrolysed, zinc concentration 52g/L, sulfuric acid concentration 153g/L;Contain
Organic matter is calculated in the zinc hydrometallurgy solution of organic matter with total organic carbon, total organic carbon 58.6mg/L, and organism kinds include
The small organic molecules such as the larger molecular organics such as ox glue and ethyl xanthate, fatty acid).It is placed in cooling reactor and is stirred
(50 revs/min), are gradually cooled to -5 DEG C, detailed process are as follows: are down to temperature with the cooling velocity of 2 DEG C/min when beginning as 25
DEG C, it then proceedes to be down to -5 DEG C with the cooling velocity of 5 DEG C/min, reacts 30min, induce nucleation using organic matter, formed
Crystalline deposit containing organic matter after crystalline deposit of the centrifugal filtration solid-liquor separation containing organic matter, obtains after reaction
The solution of zinc sulfate of 962mL removing organic matter.
Testing result is that remove in the solution of zinc sulfate of organic matter total content of organic carbon be 20.6mg/L, organic matter it is de-
Except rate is 62.9%.
Embodiment 4
The method of organic matter in the removing zinc hydrometallurgy solution, the zinc hydrometallurgy solution by 1000mL containing organic matter (contain organic matter
Zinc hydrometallurgy solution be three sections of zinc hydrometallurgy purification after liquid, temperature be 65 DEG C, zinc concentration 155g/L, solution acidity are pH value
5.4;Organic matter is calculated in zinc hydrometallurgy solution containing organic matter with total organic carbon, total organic carbon 35.2mg/L, organic species
Class includes the small organic molecules such as the larger molecular organics such as gelatine, mineral oil and ethyl xanthate, fatty acid) it is placed in cooling reactor
In be stirred (10 revs/min), be gradually cooled to 10 DEG C, detailed process are as follows: be down to when beginning with the cooling velocity of 2 DEG C/min
Temperature is 30 DEG C, then proceedes to be down to 10 DEG C with the cooling velocity of 2 DEG C/min, reacts 60min, induces nucleation to make using organic matter
With, crystalline deposit of the formation containing organic matter, after reaction, the crystalline deposit using centrifugal filtration solid-liquor separation containing organic matter
Afterwards, the solution of zinc sulfate of 945mL removing organic matter is obtained.
Testing result is that remove in the solution of zinc sulfate of organic matter total content of organic carbon be 21.9mg/L, organic matter it is de-
Except rate is 41.2%.
Above the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment party
Formula can also be made without departing from the purpose of the present invention within the knowledge of a person skilled in the art
Various change out.
Claims (6)
1. a kind of method of organic matter in removing zinc hydrometallurgy solution, it is characterised in that: by the zinc hydrometallurgy solution containing organic matter
It is stirred, is gradually cooled to -20 DEG C ~ 10 DEG C, react 10min ~ 60min, induce nucleation using organic matter, formation contains
The crystalline deposit of machine object, after reaction, after crystalline deposit of the centrifugal filtration solid-liquor separation containing organic matter, obtaining removing has
The solution of zinc sulfate of machine object.
2. the method for organic matter in removing zinc hydrometallurgy solution according to claim 1, it is characterised in that: described containing organic
The zinc hydrometallurgy solution of object is by zinc hydrometallurgy output, and wherein zinc concentration is 40 ~ 155g/L, 0.01 ~ 180g/L of solution sulfuric acid concentration.
3. the method for organic matter in removing zinc hydrometallurgy solution according to claim 1, it is characterised in that: described containing organic
Organic matter is calculated in the zinc hydrometallurgy solution of object with total organic carbon, and total organic carbon is greater than 35mg/L.
4. the method for organic matter in removing zinc hydrometallurgy solution according to claim 1, it is characterised in that: described containing organic
The zinc hydrometallurgy solution temperature of object is 35 DEG C ~ 65 DEG C.
5. the method for organic matter in removing zinc hydrometallurgy solution according to claim 1, it is characterised in that: the stirring turns
Speed is 10 ~ 120 revs/min.
6. the method for organic matter in removing zinc hydrometallurgy solution according to claim 1, it is characterised in that: described gradually to drop
Temperature detailed process are as follows: when beginning with the cooling velocity of 1 ~ 2 DEG C/min be down to temperature be 25 ~ 30 DEG C, then proceed to 2 ~ 5 DEG C/
The cooling velocity of min is down to -20 DEG C ~ 10 DEG C.
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Cited By (3)
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CN111996390A (en) * | 2020-08-12 | 2020-11-27 | 云南驰宏锌锗股份有限公司 | Method for removing fine particles from zinc sulfate solution |
CN112030003A (en) * | 2020-03-27 | 2020-12-04 | 昆明理工大学 | Method for simultaneously removing multiple impurity ions in wet-process zinc smelting waste electrolyte |
CN113667833A (en) * | 2021-08-20 | 2021-11-19 | 云南金鼎锌业有限公司 | Purification and cadmium removal method for zinc hydrometallurgy |
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CN112030003A (en) * | 2020-03-27 | 2020-12-04 | 昆明理工大学 | Method for simultaneously removing multiple impurity ions in wet-process zinc smelting waste electrolyte |
CN112030003B (en) * | 2020-03-27 | 2021-09-07 | 昆明理工大学 | Method for simultaneously removing multiple impurity ions in wet-process zinc smelting waste electrolyte |
CN111996390A (en) * | 2020-08-12 | 2020-11-27 | 云南驰宏锌锗股份有限公司 | Method for removing fine particles from zinc sulfate solution |
CN113667833A (en) * | 2021-08-20 | 2021-11-19 | 云南金鼎锌业有限公司 | Purification and cadmium removal method for zinc hydrometallurgy |
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