CN113684366A - Process for producing zinc concentrate by using zinc-containing waste hydrochloric acid - Google Patents
Process for producing zinc concentrate by using zinc-containing waste hydrochloric acid Download PDFInfo
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- CN113684366A CN113684366A CN202110847780.3A CN202110847780A CN113684366A CN 113684366 A CN113684366 A CN 113684366A CN 202110847780 A CN202110847780 A CN 202110847780A CN 113684366 A CN113684366 A CN 113684366A
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- China
- Prior art keywords
- zinc
- hydrochloric acid
- waste hydrochloric
- concentrate
- sulfide
- Prior art date
- 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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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 239000011701 zinc Substances 0.000 title claims abstract description 124
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 124
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000002699 waste material Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000012141 concentrate Substances 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 15
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 9
- 230000001376 precipitating effect Effects 0.000 claims abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 24
- 239000000047 product Substances 0.000 claims description 24
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 23
- 239000005083 Zinc sulfide Substances 0.000 claims description 16
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 16
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 16
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 15
- 239000002244 precipitate Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229960002089 ferrous chloride Drugs 0.000 claims description 8
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010306 acid treatment Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 3
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
-
- 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)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for producing zinc concentrate by using waste hydrochloric acid containing zinc, which comprises the following steps: A. pretreating zinc-containing waste hydrochloric acid; B. neutralizing and precipitating; C. the process adopted by the invention has the advantages of simple operation, low cost and good environmental protection performance, and changes the adding sequence and conditions of sodium sulfide on the basis of the original waste acid treatment, thereby reducing the overflow of hydrogen sulfide gas and the use amount of sodium sulfide caused by reaction, and increasing the safety coefficient and economic benefit of the reaction.
Description
Technical Field
The invention relates to the technical field of zinc concentrate production, in particular to a process for producing zinc concentrate by using waste hydrochloric acid containing zinc.
Background
The zinc concentrate is generally produced by crushing, ball milling, foam flotation and other processes of lead-zinc ore or zinc-containing ore, and the like, and the ore reaches the national standard and has high zinc content. Zinc concentrate is the main raw material for producing metallic zinc, zinc compounds, etc. The metal zinc is mainly used for producing copper alloy, lead alloy, magnesium alloy, lead-zinc alloy and zinc compounds and is used in the fields of steel, metallurgy, machinery, electricity, chemical industry, light industry, military, medicine and the like.
At present, the process for producing zinc concentrate by using waste hydrochloric acid containing zinc is complex, and the extraction precision is low, so that improvement is necessary.
Disclosure of Invention
The invention aims to provide a process for producing zinc concentrate by using waste hydrochloric acid containing zinc so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
Preferably, the specific method of step a is as follows: adding a proper amount of iron powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
Preferably, sodium hydroxide lye is added into the reaction liquid in the step A, the PH value is adjusted to be between 1.5 and 2, sodium sulfide is added to be quickly and uniformly mixed, the rest of the settled zinc ions is converted into ferrous sulfide precipitate, then a proper amount of waste hydrochloric acid with zinc adjusted is added into the system to adjust the final PH value of the system to be between 1.5 and 2, and the zinc ions and the ferrous sulfide react to be converted into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
Preferably, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is less than 100ppm, the zinc content of the solid enriched zinc mud as a finished product is not less than 55%, and the liquid is a ferrous chloride water treatment agent and meets the first-class standard of zinc concentrate in YS/T320-2014.
Preferably, the mass ratio of the zinc-containing waste hydrochloric acid to the reducing agent is (2-3): 1.
preferably, the zinc-containing waste hydrochloric acid is added into the system and fully stirred and mixed, the stirring speed is 80-140 r/min, and the time is 6-10 min.
Compared with the prior art, the invention has the beneficial effects that: the process adopted by the invention has the advantages of simple operation, low cost and good environmental protection performance, and the process changes the adding sequence and conditions of sodium sulfide on the basis of the original waste acid treatment, thereby reducing the overflow of hydrogen sulfide gas and the use amount of sodium sulfide in the reaction, and increasing the safety coefficient and the economic benefit of the reaction.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides the following technical scheme: a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of iron powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In the embodiment, sodium hydroxide lye is added into the reaction liquid in the step A, the PH value is adjusted to 1.6, sodium sulfide is added to be quickly and uniformly mixed, the rest of the settled zinc ions is converted into ferrous sulfide precipitate, then a proper amount of waste hydrochloric acid containing zinc is added into the system to adjust the final PH value of the system to 1.6, and the zinc ions react with the ferrous sulfide to be converted into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 90ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the iron powder is 2: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 80 rpm, and the time is 6 min.
Example two:
a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of zinc powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In this embodiment, sodium hydroxide lye is added to the reaction solution of step a and the PH is adjusted to 1.9, sodium sulfide is added and mixed rapidly and uniformly, the remaining zinc ions are settled and converted to ferrous sulfide precipitate, and then a proper amount of waste hydrochloric acid containing zinc is addedAdjusting the final pH value of the system to 1.9, and converting zinc ions and ferrous sulfide into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 80ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the zinc powder is 3: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 140 rpm, and the time is 10 min.
Example three:
a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of iron powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In the embodiment, sodium hydroxide lye is added into the reaction liquid in the step A, the PH value is adjusted to 1.8, sodium sulfide is added to be quickly and uniformly mixed, the rest of the settled zinc ions is converted into ferrous sulfide precipitate, then a proper amount of waste hydrochloric acid containing zinc is added into the system to adjust the final PH value of the system to 1.8, and the zinc ions react with the ferrous sulfide to be converted into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 90ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the iron powder is 2: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 130 rpm, and the time is 9 min.
Example four:
a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of zinc powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In the embodiment, sodium hydroxide lye is added into the reaction solution in the step A, the PH value is adjusted to 1.7, sodium sulfide is added and mixed rapidly and uniformly to ensure that the sodium sulfide is completely converted into ferrous sulfide precipitate, then a proper amount of waste hydrochloric acid containing zinc is added into the system to adjust the final PH value of the system to 1.8, and zinc ions react with the ferrous sulfide to be converted into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 80ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the zinc powder is 2: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 110 rpm, and the time is 7 min.
Example five:
a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of iron powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In this example, sodium hydroxide lye was added to the reaction solution of step AAdjusting the pH value to 1.6, adding sodium sulfide, mixing uniformly, converting the rest of the settled zinc ions into ferrous sulfide precipitate, adding a proper amount of waste hydrochloric acid containing zinc into the system, adjusting the final pH value to 1.8, and reacting the zinc ions with the ferrous sulfide to convert into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 70ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the iron powder is 2: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 100 rpm, and the time is 7 min.
Example six:
a process for producing zinc concentrate by using waste hydrochloric acid containing zinc comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
In this embodiment, the specific method of step a is as follows: adding a proper amount of zinc powder into the zinc-containing waste hydrochloric acid to reduce ferric iron.
In the embodiment, sodium hydroxide lye is added into the reaction liquid in the step A, the PH value is adjusted to 1.8, sodium sulfide is added to be quickly and uniformly mixed, the rest of the settled zinc ions is converted into ferrous sulfide precipitate, then a proper amount of waste hydrochloric acid containing zinc is added into the system to adjust the final PH value of the system to 2.8, and the zinc ions react with the ferrous sulfide to be converted into zinc sulfide precipitate; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
In the embodiment, the reaction solution in the step B is subjected to plate-and-frame filter pressing, the zinc content in the liquid is 90ppm, the zinc content of the solid finished product enriched zinc mud is not less than 55%, the zinc content meets the first-class standard of zinc concentrate in YS/T320-2014, and the liquid is a ferrous chloride water treatment agent.
In this example, the mass ratio of the zinc-containing waste hydrochloric acid to the zinc powder is 2: 1.
in this embodiment, the waste hydrochloric acid containing zinc is added into the system and fully stirred and mixed, the stirring speed is 120 rpm, and the time is 8 min.
In conclusion, the process adopted by the invention has the advantages of simple operation, low cost and good environmental protection performance, and the addition sequence and conditions of sodium sulfide are changed on the basis of the original waste acid treatment, so that the overflow of hydrogen sulfide gas and the use amount of sodium sulfide caused by reaction can be reduced, and the safety coefficient and the economic benefit of the reaction are increased.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A process for producing zinc concentrate by using waste hydrochloric acid containing zinc is characterized by comprising the following steps: the method comprises the following steps:
A. pretreating zinc-containing waste hydrochloric acid;
B. neutralizing and precipitating;
C. and (4) solid-liquid separation.
2. The process for producing zinc concentrate by using waste hydrochloric acid containing zinc according to claim 1, wherein the process comprises the following steps: the specific method of the step A is as follows: and a proper amount of reducing agent is added into the zinc-containing waste hydrochloric acid to reduce ferric iron and prevent iron loss.
3. The process for producing zinc concentrate by using waste hydrochloric acid containing zinc according to claim 1, wherein the process comprises the following steps: adding sodium hydroxide lye into the reaction liquid in the step A, adjusting the PH value to be between 1.5 and 2, adding sodium sulfide, quickly and uniformly mixing, converting the rest of the settled zinc ions into ferrous sulfide precipitate, then adding a proper amount of waste hydrochloric acid containing zinc into the system, adjusting the final PH value of the system to be between 1.5 and 2, and converting the zinc ions into zinc sulfide through reaction with the ferrous sulfidePrecipitating; ferrous sulfide solubility product constant 3.7 x 10-19Zinc sulfide solubility product constant 1.2 x 10-23。
4. The process for producing zinc concentrate by using waste hydrochloric acid containing zinc according to claim 1, wherein the process comprises the following steps: and D, performing plate-and-frame filter pressing on the reaction liquid in the step B, wherein the zinc content in the liquid is less than 100ppm, the zinc content of the solid enriched zinc mud as a finished product is not less than 55%, and the liquid is a ferrous chloride water treatment agent and meets the first-class standard of zinc concentrate in YS/T320-2014.
5. The process for producing zinc concentrate by using waste hydrochloric acid containing zinc according to claim 2, characterized in that: the mass ratio of the zinc-containing waste hydrochloric acid to the reducing agent is (2-3): 1.
6. the process for producing zinc concentrate by using waste hydrochloric acid containing zinc according to claim 3, wherein the process comprises the following steps: adding zinc-containing waste hydrochloric acid into the system, and stirring at 80-140 rpm for 6-10 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110847780.3A CN113684366A (en) | 2021-07-27 | 2021-07-27 | Process for producing zinc concentrate by using zinc-containing waste hydrochloric acid |
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| CN202110847780.3A CN113684366A (en) | 2021-07-27 | 2021-07-27 | Process for producing zinc concentrate by using zinc-containing waste hydrochloric acid |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080271572A1 (en) * | 2005-12-29 | 2008-11-06 | Outotec Oyj | Method for Recovering Rare Metals in Zinc Leaching Process |
| JP2010138490A (en) * | 2008-11-12 | 2010-06-24 | Mitsubishi Materials Corp | Method of recovering zinc |
| CN102079595A (en) * | 2010-12-16 | 2011-06-01 | 陆伯新 | Method for treating waste hydrochloric acid containing lead, zinc and ferrum |
| CN104176852A (en) * | 2014-07-14 | 2014-12-03 | 红板（江西）有限公司 | Treatment process for chemical nickel plating waste liquid in circuit board industry |
| CN106587478A (en) * | 2017-01-22 | 2017-04-26 | 青岛北方节能环保有限公司 | Hot-dip galvanizing waste acid resource treatment method |
| CN106676274A (en) * | 2016-11-21 | 2017-05-17 | 西北矿冶研究院 | Method for resource utilization of lead and zinc in high-iron and high-phosphorus-containing waste residues in steel wire rope industry |
| CN107245582A (en) * | 2017-05-26 | 2017-10-13 | 金川集团股份有限公司 | It is a kind of that iron, the method for zinc are reclaimed from waste hydrochloric acid |
| CN110357058A (en) * | 2019-08-12 | 2019-10-22 | 江苏荣信环保科技有限公司 | The method that ferric phosphate is made in phosphorous metal sludge and spent acid |
| CN110642347A (en) * | 2019-09-27 | 2020-01-03 | 江苏荣信环保科技有限公司 | Method for preparing industrial flocculant from acid solution containing high iron, lead and zinc |
-
2021
- 2021-07-27 CN CN202110847780.3A patent/CN113684366A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080271572A1 (en) * | 2005-12-29 | 2008-11-06 | Outotec Oyj | Method for Recovering Rare Metals in Zinc Leaching Process |
| JP2010138490A (en) * | 2008-11-12 | 2010-06-24 | Mitsubishi Materials Corp | Method of recovering zinc |
| CN102079595A (en) * | 2010-12-16 | 2011-06-01 | 陆伯新 | Method for treating waste hydrochloric acid containing lead, zinc and ferrum |
| CN104176852A (en) * | 2014-07-14 | 2014-12-03 | 红板（江西）有限公司 | Treatment process for chemical nickel plating waste liquid in circuit board industry |
| CN106676274A (en) * | 2016-11-21 | 2017-05-17 | 西北矿冶研究院 | Method for resource utilization of lead and zinc in high-iron and high-phosphorus-containing waste residues in steel wire rope industry |
| CN106587478A (en) * | 2017-01-22 | 2017-04-26 | 青岛北方节能环保有限公司 | Hot-dip galvanizing waste acid resource treatment method |
| CN107245582A (en) * | 2017-05-26 | 2017-10-13 | 金川集团股份有限公司 | It is a kind of that iron, the method for zinc are reclaimed from waste hydrochloric acid |
| CN110357058A (en) * | 2019-08-12 | 2019-10-22 | 江苏荣信环保科技有限公司 | The method that ferric phosphate is made in phosphorous metal sludge and spent acid |
| CN110642347A (en) * | 2019-09-27 | 2020-01-03 | 江苏荣信环保科技有限公司 | Method for preparing industrial flocculant from acid solution containing high iron, lead and zinc |
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Application publication date: 20211123 |