CN110028192A - A kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid - Google Patents
A kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid Download PDFInfo
- Publication number
- CN110028192A CN110028192A CN201910178607.1A CN201910178607A CN110028192A CN 110028192 A CN110028192 A CN 110028192A CN 201910178607 A CN201910178607 A CN 201910178607A CN 110028192 A CN110028192 A CN 110028192A
- Authority
- CN
- China
- Prior art keywords
- arsenic
- magnetic
- waste acid
- scorodite
- nonferrous smelting
- 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
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 69
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000002253 acid Substances 0.000 title claims abstract description 59
- 239000002699 waste material Substances 0.000 title claims abstract description 57
- 238000003723 Smelting Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- UYZMAFWCKGTUMA-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane;dihydrate Chemical compound O.O.[Fe+3].[O-][As]([O-])([O-])=O UYZMAFWCKGTUMA-UHFFFAOYSA-K 0.000 claims abstract description 26
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000498 ball milling Methods 0.000 claims abstract description 12
- 238000007885 magnetic separation Methods 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 11
- 239000011343 solid material Substances 0.000 claims abstract description 10
- 238000013019 agitation Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229940000488 arsenic acid Drugs 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
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 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
- 238000001556 precipitation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention relates to a kind of magnetic Fes3O4The method for handling arsenic in nonferrous smelting waste acid, belongs to heavy metal arsenic pollutant abatement technology field.The present invention is by magnetic Fe3O4It is uniformly mixed with waste acid and pretreatment 12 ~ obtain solution A for 24 hours under agitation, then H is added into solution A2O2And scorodite crystals, it is uniformly mixed and obtains solution B；It is 70 DEG C ~ 90 DEG C, under stirring condition in temperature, solution B is subjected to dearsenification and reacts 8 ~ 12h, separation of solid and liquid obtains arsenic-containing solid material and liquor C；By magnetic separation after arsenic-containing solid material ball milling, magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It comes back for recycling, pure scorodite carries out safe disposal.The method of the present invention workflow is simple, and effect of removing arsenic is obvious, and the scorodite physical property of generation is stablized.
Description
Technical field
The present invention relates to a kind of magnetic Fes3O4The method for handling arsenic in nonferrous smelting waste acid, belongs to heavy metal arsenic pollution control
Technical field.
Background technique
China's arsenic resource reserves account for the 70% of global total amount, and by arsenic pollution one of the countries with the most serious ....It is most of
The compound of arsenic all has toxicity, since everybody is insufficient to the cognition of arsenic, causes to abuse and be flowed into environment and cause to dive greatly very much
In danger.Therefore, the arsenic removal target one of important at chemical metallurgy industry, wherein the waste acid of nonferrous smelting becomes the weight administered
Syllabus.During nonferrous smelting, flue gas during smelting is when acidic leaching recycles wherein valuable metal, acid leaching solution and equipment
And recirculated cooling water, the acid heavy metal-containing waste water in technique are mixed with sanitary wastewater, generate waste acid containing arsenic.Water is big, acidity
High, complicated component need to carry out advanced treating, qualified discharge containing metal ions such as arsenic, copper, lead, zinc, cadmium, bismuths.
Currently, the universal processing mode of waste acid is lime neutralization, molysite heavy arsenic, three kinds of sulfide precipitation, the quantity of slag is big, arsenic contains
Measure low, but the activity of arsenide is very high, it cannot be guaranteed that the Leaching of its arsenic is up to standard, when stockpiling, acid solution will lead to arsenic acid
The dissolution again of arsenic in calcium and ferric arsenate, oxygen and bacterium etc. can make arsenones that oxidation dissolution occur.
Summary of the invention
In view of the problems of the existing technology the present invention, provides a kind of magnetic Fe3O4Handle the side of arsenic in nonferrous smelting waste acid
Method, the method for the present invention workflow is simple, and effect of removing arsenic is obvious, and the scorodite physical property of generation is stablized；With conventional method phase
Than not needing to adjust pH when, processing, avoids and introduce new impurity, it is economic and environment-friendly.
A kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid, the specific steps are as follows:
(1) by magnetic Fe3O4It is uniformly mixed with waste acid and pretreatment 12 ~ obtain solution A for 24 hours under agitation, then to solution A
Middle addition H2O2And scorodite crystals, it is uniformly mixed and obtains solution B；
(2) it is 70 DEG C ~ 90 DEG C, under stirring condition in temperature, step (1) solution B is subjected to dearsenification and reacts 8 ~ 12h, is separated by solid-liquid separation
Obtain arsenic-containing solid material and liquor C；
(3) by magnetic separation after the arsenic-containing solid material ball milling of step (2), magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It returns
It goes back to step (1) to be recycled, pure scorodite carries out safe disposal；
The arsenic content of waste acid is 8000 ~ 13000mg/L in the step (1)；
Step (1) magnetic Fe3O4In iron and waste acid in arsenic molar ratio be (2 ~ 3): 1；
The molar ratio of arsenic is (24 ~ 26) in step (1) scorodite crystals and waste acid: 1；
Step (1) H2O2Molar ratio with arsenic in waste acid is (1 ~ 1.2): 1；
The mixing speed is 180 ~ 200r/min；
Step (3) rotational speed of ball-mill is 700 ~ 910r/min, and Ball-milling Time is 5 ~ 8min；
Step (3) magnetic separation strength is 150 ~ 280mT.
The beneficial effects of the present invention are:
(1) operation of the present invention process is simple, and effect of removing arsenic is obvious, and the scorodite physical property of generation is stablized；
(2) present invention passes through control pretreatment time, magnetic Fe3O4PH can be automatically adjusted when mixing with waste acid, when processing is not required to
PH is additionally adjusted, avoids and introduces new impurity, and reduce cost, there is significant environmental benefit and economic benefit；
(3) after arsenic-containing solid material carries out ball milling magnetic separation, isolated magnetic Fe3O4It is recycled, not only reduces resource
Waste, also reduces the investment of cost, has wider application prospect.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Invention is further described in detail With reference to embodiment, but protection scope of the present invention and unlimited
In the content.
Embodiment 1: certain regional copper smelting plant sulfuric acid plant washs flue gas during smelting to the present embodiment waste acid southwest
The waste acid containing impurity such as a large amount of arsenic generated afterwards, main component such as table 1；
Each constituent concentration of 1 waste acid of table
As shown in Figure 1, a kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid, the specific steps are as follows:
(1) by magnetic Fe3O4It is uniformly mixed with waste acid and pretreatment 12h obtains solution A under agitation, then into solution A
H is added2O2And scorodite crystals, it is uniformly mixed and obtains solution B；Wherein the arsenic content of waste acid is 8000mg/L, magnetic Fe3O4In
Iron and waste acid in the molar ratio of arsenic be 2:1, the molar ratio of arsenic is 24:1, H in scorodite crystals and waste acid2O2With arsenic in waste acid
Molar ratio be 1:1, mixing speed 180r/min；
(2) it is 70 DEG C, under stirring condition in temperature, step (1) solution B is subjected to dearsenification and reacts 8h, separation of solid and liquid is obtained containing arsenic
Solid and liquor C, wherein mixing speed is 180r/min, and the ingredient of liquor C is shown in Table 2；
Each constituent concentration of 2 liquor C of table
(3) by magnetic separation after the arsenic-containing solid material ball milling of step (2), magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It returns
It goes back to step (1) to be recycled, pure scorodite carries out safe disposal；Wherein rotational speed of ball-mill is 700r/min, and Ball-milling Time is
5min, magnetic separation strength 150mT.
Embodiment 2: certain regional zinc smelting factory sulfuric acid plant washs flue gas during smelting to the present embodiment waste acid southwest
The waste acid containing impurity such as a large amount of arsenic generated afterwards, main component such as table 3；
Each constituent concentration of 3 waste acid of table
As shown in Figure 1, a kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid, the specific steps are as follows:
(1) by magnetic Fe3O4It is uniformly mixed with waste acid and pretreatment 18h obtains solution A under agitation, then into solution A
H is added2O2And scorodite crystals, it is uniformly mixed and obtains solution B；Wherein the arsenic content of waste acid is 10000mg/L, magnetic Fe3O4In
Iron and waste acid in the molar ratio of arsenic be 2.5:1, the molar ratio of arsenic is 25:1, H in scorodite crystals and waste acid2O2In waste acid
The molar ratio of arsenic is 1.1:1, mixing speed 190r/min；
(2) it is 70 DEG C, under stirring condition in temperature, step (1) solution B is subjected to dearsenification and reacts 8h, separation of solid and liquid is obtained containing arsenic
Solid and liquor C, wherein mixing speed is 190r/min, and the ingredient of liquor C is shown in Table 4；
Each constituent concentration of 4 liquor C of table
(3) by magnetic separation after the arsenic-containing solid material ball milling of step (2), magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It returns
It goes back to step (1) to be recycled, pure scorodite carries out safe disposal；Wherein rotational speed of ball-mill is 800r/min, and Ball-milling Time is
6min, magnetic separation strength 200mT.
Embodiment 3: certain regional copper smelting plant sulfuric acid plant washs flue gas during smelting to the present embodiment waste acid southwest
The waste acid containing impurity such as a large amount of arsenic generated afterwards, main component such as table 5；
Each constituent concentration of 5 waste acid of table
As shown in Figure 1, a kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid, the specific steps are as follows:
(1) by magnetic Fe3O4It is uniformly mixed with waste acid and pre-processes under agitation and obtain solution A for 24 hours, then into solution A
H is added2O2And scorodite crystals, it is uniformly mixed and obtains solution B；Wherein the arsenic content of waste acid is 13000mg/L, magnetic Fe3O4In
Iron and waste acid in the molar ratio of arsenic be 3:1, the molar ratio of arsenic is 25:1, H in scorodite crystals and waste acid2O2With arsenic in waste acid
Molar ratio be 1.2:1, mixing speed 200r/min；
(2) it is 90 DEG C, under stirring condition in temperature, step (1) solution B is subjected to dearsenification and reacts 12h, separation of solid and liquid is obtained containing arsenic
Solid and liquor C, wherein mixing speed is 200r/min, and the ingredient of liquor C is shown in Table 6；
Each constituent concentration of 6 liquor C of table
(3) by magnetic separation after the arsenic-containing solid material ball milling of step (2), magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It returns
It goes back to step (1) to be recycled, pure scorodite carries out safe disposal；Wherein rotational speed of ball-mill is 910r/min, and Ball-milling Time is
8min, magnetic separation strength 280mT.
It is that the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment party above
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 (8)
1. a kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid, which is characterized in that specific step is as follows:
(1) by magnetic Fe3O4It is uniformly mixed with waste acid and pretreatment 12 ~ obtain solution A for 24 hours under agitation, then to solution A
Middle addition H2O2And scorodite crystals, it is uniformly mixed and obtains solution B；
(2) it is 70 DEG C ~ 90 DEG C, under stirring condition in temperature, step (1) solution B is subjected to dearsenification and reacts 8 ~ 12h, is separated by solid-liquid separation
Obtain arsenic-containing solid material and liquor C；
(3) by magnetic separation after the arsenic-containing solid material ball milling of step (2), magnetic Fe is isolated3O4With pure scorodite, magnetic Fe3O4It returns
It goes back to step (1) to be recycled, pure scorodite carries out safe disposal.
2. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (1)
The arsenic content of middle waste acid is 8000 ~ 13000mg/L.
3. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (1)
Magnetic Fe3O4In iron and waste acid in arsenic molar ratio be (2 ~ 3): 1.
4. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (1)
The molar ratio of arsenic is (24 ~ 26) in scorodite crystals and waste acid: 1.
5. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (1)
H2O2Molar ratio with arsenic in waste acid is (1 ~ 1.2): 1.
6. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: mixing speed
For 180 ~ 200r/min.
7. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (3)
Rotational speed of ball-mill is 700 ~ 910r/min, and Ball-milling Time is 5 ~ 8min.
8. magnetic Fe according to claim 13O4The method for handling arsenic in nonferrous smelting waste acid, it is characterised in that: step (3)
Magnetic separation strength is 150 ~ 280mT.
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| CN201910178607.1A CN110028192A (en) | 2019-03-11 | 2019-03-11 | A kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid |
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| CN201910178607.1A CN110028192A (en) | 2019-03-11 | 2019-03-11 | A kind of magnetic Fe3O4The method for handling arsenic in nonferrous smelting waste acid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482672A (en) * | 2019-07-25 | 2019-11-22 | 昆明理工大学 | A method of arsenic in waste acid is efficiently removed for source of iron in situ with magnetic iron ore |
| CN110734096A (en) * | 2019-10-31 | 2020-01-31 | 昆明理工大学 | Method for wrapping and stabilizing scorodite by silicate gels |
| CN110981026A (en) * | 2019-12-25 | 2020-04-10 | 昆明理工大学 | Method for harmlessly treating arsenic-containing waste acid in nonferrous smelting |
| CN111003776A (en) * | 2019-12-30 | 2020-04-14 | 昆明理工大学 | Method for treating nonferrous smelting arsenic-containing wastewater by using ferromanganese ore |
| CN111069228A (en) * | 2019-11-22 | 2020-04-28 | 昆明理工大学 | Method for wrapping stabilized scorodite by copper slag gel |
-
2019
- 2019-03-11 CN CN201910178607.1A patent/CN110028192A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482672A (en) * | 2019-07-25 | 2019-11-22 | 昆明理工大学 | A method of arsenic in waste acid is efficiently removed for source of iron in situ with magnetic iron ore |
| CN110734096A (en) * | 2019-10-31 | 2020-01-31 | 昆明理工大学 | Method for wrapping and stabilizing scorodite by silicate gels |
| CN111069228A (en) * | 2019-11-22 | 2020-04-28 | 昆明理工大学 | Method for wrapping stabilized scorodite by copper slag gel |
| CN110981026A (en) * | 2019-12-25 | 2020-04-10 | 昆明理工大学 | Method for harmlessly treating arsenic-containing waste acid in nonferrous smelting |
| CN111003776A (en) * | 2019-12-30 | 2020-04-14 | 昆明理工大学 | Method for treating nonferrous smelting arsenic-containing wastewater by using ferromanganese ore |
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Application publication date: 20190719 |