CN108975385A - A kind of method of iron content zinc sulfate slurry iron-removing - Google Patents
A kind of method of iron content zinc sulfate slurry iron-removing Download PDFInfo
- Publication number
- CN108975385A CN108975385A CN201810891033.8A CN201810891033A CN108975385A CN 108975385 A CN108975385 A CN 108975385A CN 201810891033 A CN201810891033 A CN 201810891033A CN 108975385 A CN108975385 A CN 108975385A
- Authority
- CN
- China
- Prior art keywords
- iron content
- iron
- zinc sulfate
- 100ppm
- less
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 84
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 title claims abstract description 36
- 229960001763 zinc sulfate Drugs 0.000 title claims abstract description 36
- 229910000368 zinc sulfate Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 title claims abstract description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 32
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011701 zinc Substances 0.000 claims abstract description 20
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 230000003252 repetitive effect Effects 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004458 analytical method Methods 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- -1 zinc sulfate dioxygen Chemical compound 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/06—Sulfates
Abstract
A kind of method of iron content zinc sulfate slurry iron-removing, belongs to chemical technology field.1) it is specifically includes the following steps: take the iron content zinc sulfate mud obtained in production；2) pH value is adjusted with material containing zinc；3) iron content in analytical solution removes iron using hydrogen peroxide according to iron content；4) hydrogen peroxide is added from reactor bottom；5) iron content in analytical solution, if iron content is greater than 100ppm, repetitive operation (2), (3) and (4), until iron content is less than 100ppm；6) it when iron content is less than 100ppm, is stirred for；7) filtering solution, solid-liquor separation is fast, and liquid iron content is less than 100ppm.The present invention needs to provide except iron enterprise for production process to be leached with except iron carries out in same reactor tank, and the reduction quantity of slag is energy-saving, has important practical value.
Description
Technical field
The invention belongs to chemical technology fields, and in particular to a kind of method of iron content zinc sulfate slurry iron-removing.
Background technique
Iron content zinc sulfate mud is to be obtained in Feed Manufacturing by material containing zinc is added in sulfur-bearing acid solution, containing following
Ingredient: zinc 100-130g/L, iron are less than 5000ppm and solid contents 100-250g/L.Traditional iron content zinc sulfate mud removes
Iron method must separate solid in mud and liquid, and the solution isolated is heated to 80 DEG C or more except iron, just can guarantee in solution
Iron dross removing separates very well with solution of zinc sulfate, and this method must be separated and must be heated with steam through liquid twice and solid, increases step
Suddenly, increase the energy consumption of production zinc sulfate.
Summary of the invention
In view of the problems of the existing technology, it is an object of the invention to design to provide a kind of iron content zinc sulfate slurry iron-removing
Method technical solution.
A kind of method of iron content zinc sulfate slurry iron-removing, the iron content zinc sulfate mud contain following component: zinc
100-130g/L, iron are less than 5000ppm and solid contents 100-250g/L, it is characterised in that specifically includes the following steps:
1) take the temperature obtained in production in 50-75 DEG C of iron content zinc sulfate mud；
2) pH value 5.0-6.0 is adjusted with material containing zinc；
3) iron content in analytical solution removes iron using hydrogen peroxide, and in the iron content zinc sulfate mud of step 2 according to iron content
The hydrogen peroxide that 1.3 times of concentration of theoretical amount are 28-36% is added；
4) hydrogen peroxide is added from reactor bottom, speed control is added less than 0.8L/ and divides .m3；
5) iron content in analytical solution, if iron content is greater than 100ppm, repetitive operation (2), (3) and (4), until iron content is less than
100ppm；
6) when iron content is less than 100ppm, it is stirred at least 30min；
7) filtering solution, solid-liquor separation is fast, and liquid iron content is less than 100ppm.
A kind of method of the iron content zinc sulfate slurry iron-removing, it is characterised in that take production upper in the step 1)
The temperature arrived is in 55-70 DEG C of iron content zinc sulfate mud.
The method of a kind of iron content zinc sulfate slurry iron-removing, it is characterised in that material containing zinc is used in the step 2)
PH value is adjusted to 5.1-5.2.
The method of a kind of iron content zinc sulfate slurry iron-removing, it is characterised in that speed control is added in the step 4)
0.3-0.6L/ processed divides .m3.
The method of a kind of iron content zinc sulfate slurry iron-removing, it is characterised in that 40-60 is stirred in the step 6)
min。
A kind of method of above-mentioned iron content zinc sulfate slurry iron-removing compared with prior art, reduces solid and liquid first divides
From, then from liquid iron removal, using raw material as neutralizer, eliminate and lime is added as neutralizer, eliminate iron content sulphur
Sour zinc solution temperature-rise period.The heat generated using zinc and sulfuric acid makes iron content solution of zinc sulfate dioxygen under the conditions of lower than 80 DEG C
Iron is eliminated, iron can be reached less than 100ppm and can be separated except liquid is solid after iron.The present invention needs to mention except iron enterprise for production process
For leaching with except iron carries out in same reactor tank, the reduction quantity of slag is energy-saving, has important practical value.
Specific embodiment
Further illustrate the present invention with reference to embodiments.
Embodiment 1
18m3 iron content zinc sulfate mud obtained in production is taken, measures 70 DEG C of mud temperature, surveying pH value is 4.8；Object containing zinc is added
(cigarette ash or lead-zinc production process generated in slag, cigarette ash or the copper zinc regenerative process generated in kirsite production generates material
In slag and cigarette ash, or liquid containing zinc and mud) adjust to pH5.1；Sampling analysis, iron content zinc sulfate mud 120g/L containing zinc, iron content
1615ppm, solid contents 165g/L；Taking 100Kg concentration is 35% hydrogen peroxide, is diluted with water to 300Kg, with pump by not
The steel pipe that becomes rusty is added from reaction pot bottom, and it is that 0.8L/ divides .m3 that speed, which is added,；After reaction is stirred for half an hour, iron in sampling analysis liquid
Content 69ppm.
Embodiment 2
18m3 iron content zinc sulfate mud obtained in production is taken, measures 70 DEG C of mud temperature, measuring pH value is 4.9；It adds and contains
Zinc material is adjusted to pH5.1；Sampling analysis, iron content zinc sulfate mud 128g/L containing zinc, iron content 2826ppm, solid contents
225g/L；Taking 150Kg concentration is that 35% hydrogen peroxide is diluted to 450Kg, is added by stainless steel tube from reaction pot bottom with pump,
Speed 0.6L/ is added and divides m3 reactor tank, iron 297ppm in sampling analysis liquid after reaction half an hour, then 25Kg hydrogen peroxide is taken, it dilutes
To 75Kg, it is added by stainless steel tube from reaction pot bottom with pump, speed 0.6L/ is added and divides .m3；Lead to hydrogen peroxide and reacts half again
Hour, iron content 61ppm in sampling analysis liquid.
Embodiment 3
18m3 iron content zinc sulfate mud obtained in production is taken, measures 65 DEG C of mud temperature, surveying pH value is 4.8；Object containing zinc is added
Material is adjusted to pH5.1；Sampling analysis, the iron content zinc sulfate mud 115g/L containing zinc, iron content 669ppm, solid contents 170g/
L；Taking 50Kg concentration is 35% hydrogen peroxide, is diluted with water to 150Kg, is added, is added from reaction pot bottom by stainless steel tube with pump
Enter 0.5 L/ of speed and divides .m3；After reaction is stirred for half an hour, iron content 51ppm in sampling analysis liquid.
Embodiment 4
18m3 iron content zinc sulfate mud obtained in production is taken, measures 65 DEG C of mud temperature, measuring pH value is 4.9；It is added and contains zinc
Material is adjusted to pH5.2；Sampling analysis, iron content zinc sulfate mud 130g/L containing zinc, iron content 4678ppm, solid contents
235g/L；Taking 250Kg concentration is that 35% hydrogen peroxide is diluted to 750Kg, is added by stainless steel tube from reaction pot bottom with pump,
Speed 0.8/ is added and divides .m3；After reacting half an hour, iron 1682ppm in sampling analysis liquid, charging adjusts pH=5.1；100Kg is taken again
The hydrogen peroxide that concentration is 35%, is diluted to 300Kg, is added by stainless steel tube from reaction pot bottom with pump, speed 0.6L/ is added
Divide .m3, has led to hydrogen peroxide, be stirred for 66 ppm of iron content in half an hour sampling analysis liquid.
Claims (5)
1. a kind of method of iron content zinc sulfate slurry iron-removing, which contains following component: zinc 100-130g/L,
Iron is less than 5000ppm and solid contents 100-250g/L, it is characterised in that specifically includes the following steps:
1) take the temperature obtained in production in 50-75 DEG C of iron content zinc sulfate mud；
2) pH value 5.0-6.0 is adjusted with material containing zinc；
3) iron content in analytical solution removes iron using hydrogen peroxide, and in the iron content zinc sulfate mud of step 2 according to iron content
The hydrogen peroxide that 1.3 times of concentration of theoretical amount are 28-36% is added；
4) hydrogen peroxide is added from reactor bottom, speed control is added less than 0.8L/ and divides .m3；
5) iron content in analytical solution, if iron content is greater than 100ppm, repetitive operation (2), (3) and (4), until iron content is less than
100ppm；
6) when iron content is less than 100ppm, it is stirred at least 30min；
7) filtering solution, solid-liquor separation is fast, and liquid iron content is less than 100ppm.
2. a kind of method of iron content zinc sulfate slurry iron-removing as described in claim 1, it is characterised in that in the step 1)
Take the temperature obtained in production in 55-70 DEG C of iron content zinc sulfate mud.
3. a kind of method of iron content zinc sulfate slurry iron-removing as described in claim 1, it is characterised in that in the step 2)
PH value is adjusted to 5.1-5.2 with material containing zinc.
4. a kind of method of iron content zinc sulfate slurry iron-removing as described in claim 1, it is characterised in that in the step 4)
Speed control 0.3-0.6L/ is added and divides .m3.
5. a kind of method of iron content zinc sulfate slurry iron-removing as described in claim 1, it is characterised in that in the step 6)
Stir 40-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891033.8A CN108975385A (en) | 2018-08-07 | 2018-08-07 | A kind of method of iron content zinc sulfate slurry iron-removing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891033.8A CN108975385A (en) | 2018-08-07 | 2018-08-07 | A kind of method of iron content zinc sulfate slurry iron-removing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108975385A true CN108975385A (en) | 2018-12-11 |
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ID=64556009
Family Applications (1)
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|---|---|---|---|
| CN201810891033.8A Pending CN108975385A (en) | 2018-08-07 | 2018-08-07 | A kind of method of iron content zinc sulfate slurry iron-removing |
Country Status (1)
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| CN (1) | CN108975385A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665265A (en) * | 2009-09-17 | 2010-03-10 | 常宁市沿江锌业有限责任公司 | Method for manufacturing zinc sulfate by utilizing high-grade arsenic zinc oxide and zinc ash from steel works |
| CN103359775A (en) * | 2013-07-16 | 2013-10-23 | 杭州富阳新兴实业有限公司 | Method for removing iron from zinc-containing waste lixivium |
| CN105271366A (en) * | 2014-06-25 | 2016-01-27 | 天津市化学试剂研究所有限公司 | Superior pure zinc sulfate preparation method |
-
2018
- 2018-08-07 CN CN201810891033.8A patent/CN108975385A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665265A (en) * | 2009-09-17 | 2010-03-10 | 常宁市沿江锌业有限责任公司 | Method for manufacturing zinc sulfate by utilizing high-grade arsenic zinc oxide and zinc ash from steel works |
| CN103359775A (en) * | 2013-07-16 | 2013-10-23 | 杭州富阳新兴实业有限公司 | Method for removing iron from zinc-containing waste lixivium |
| CN105271366A (en) * | 2014-06-25 | 2016-01-27 | 天津市化学试剂研究所有限公司 | Superior pure zinc sulfate preparation method |
Non-Patent Citations (2)
| Title |
|---|
| UYHND98I: "硫酸锌工艺知识培训", 《豆丁网》 * |
| 田伟军等: "氧化锌矿制备饲料级氧化锌工艺研究与生产应用", 《矿冶工程》 * |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181211 |