CN114591749A - Iron tailing treating agent and application thereof - Google Patents
Iron tailing treating agent and application thereof Download PDFInfo
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- CN114591749A CN114591749A CN202210278582.4A CN202210278582A CN114591749A CN 114591749 A CN114591749 A CN 114591749A CN 202210278582 A CN202210278582 A CN 202210278582A CN 114591749 A CN114591749 A CN 114591749A
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- iron
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 39
- 239000003516 soil conditioner Substances 0.000 claims abstract description 15
- 239000012320 chlorinating reagent Substances 0.000 claims abstract description 13
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 13
- 150000007524 organic acids Chemical class 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003830 anthracite Substances 0.000 claims abstract description 7
- 239000004088 foaming agent Substances 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 29
- 239000011707 mineral Substances 0.000 claims description 29
- 238000007885 magnetic separation Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 12
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 10
- 239000001110 calcium chloride Substances 0.000 claims description 10
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000002028 Biomass Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 239000004021 humic acid Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 3
- 239000001630 malic acid Substances 0.000 claims description 3
- 235000011090 malic acid Nutrition 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 235000015165 citric acid Nutrition 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 15
- 230000035699 permeability Effects 0.000 abstract description 4
- 230000005291 magnetic effect Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000005415 magnetization Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 239000003361 porogen Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an iron tailing treating agent and application thereof, and belongs to the technical field of resource recycling. The treating agent comprises the following raw materials in parts by weight: 5-10 parts of chlorinating agent, 0.5-2 parts of inorganic oxide, 0.1-0.5 part of anthracite, 1-2 parts of organic acid and 0.1-0.5 part of pore-foaming agent. The invention designs the iron tailing treating agent with special composition, combines specific roasting conditions to carry out magnetization treatment on the iron tailings, then prepares the iron tailing into a soil conditioner, and after the iron tailing treating agent is applied to soil, the magnetism of the soil can be improved, the change of the structure of magnetic agglomerate in the soil is caused, particularly, the iron magnetic substance in the soil is activated, and the structure, the porosity and the air permeability of the soil are improved.
Description
Technical Field
The invention belongs to the technical field of resource recycling, and particularly relates to an iron tailing treating agent and application thereof.
Background
The metal mineral products are indispensable important raw materials in the economic development process of China, and the tailings are 'waste' slag left after useful elements are extracted from raw ores of metal mines or nonmetal mines. The economic scale of China is huge, the demand on mineral resources is urgent, and the corresponding tailings yield is also large. The tailings discharge occupies a large amount of land resources, and statistics show that the discharge amount of metal tailings in 2019 reaches 12.72 hundred million t, wherein the iron tailings account for 5.20 hundred million t and 40.9 percent, the copper tailings account for 3.25 hundred million t and 25.6 percent, the balance is gold and other metal tailings, and the discharge amount of the tailings accounts for 34.4 percent of the total discharge amount of the bulk industrial solid wastes. At present, most tailings are stockpiled, so that valuable mineral resources in the tailings are lost and wasted, a large amount of cultivated land is occupied, and the sand dust generated by a tailing pond causes great pollution to the ecological environment and water resources in the surrounding area of a mine.
Although the tailings are the wastes discharged from mines, the tailings are potential secondary resources, and the effective development of the tailings is an important component part of the comprehensive utilization of mineral resources and is also an important way for saving and utilizing the mineral resources.
Disclosure of Invention
The invention aims to provide an iron tailing treating agent and application thereof, which can improve the magnetism of soil and improve the structure, porosity and air permeability of the soil.
In order to achieve the above purpose, the solution of the invention is:
an iron tailing treating agent comprises the following raw materials in parts by weight: 5-10 parts of chlorinating agent, 0.5-2 parts of inorganic oxide, 0.1-0.5 part of anthracite, 1-2 parts of organic acid and 0.1-0.5 part of pore-foaming agent.
Further, the chlorinating agent is selected from CaCl2、NaCl、MgCl2Or FeCl3。
Further, the inorganic oxide is calcium chloride.
Further, the organic acid is selected from citric acid, malic acid or tartaric acid.
Further, the porogen is selected from PVP, PEG or PVA.
The iron tailing treating agent is applied to the preparation of a soil conditioner.
Further, the application comprises the steps of:
step 1, mixing the iron tailing treating agent and the iron tailings according to a mass ratio of 0.01-0.1: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder obtained in the step 2, 3-8 parts by weight of plant ash, 15-25 parts by weight of biomass charcoal, 3-7 parts by weight of phosphorus slag and 3-8 parts by weight of humic acid to obtain the soil conditioner.
Further, the roasting condition in the step 1 is 800-1100 ℃ for 20-30 min.
After the scheme is adopted, the iron tailing treating agent with special composition is designed, the iron tailing is magnetized by combining specific roasting conditions, and then the iron tailing is prepared into the soil conditioner, after the iron tailing treating agent is applied to soil, the magnetism of the soil can be improved, the change of the structure of magnetic agglomerate grains in the soil can be caused, particularly, the ferromagnetic substances in the soil are activated, and the structure, the porosity and the air permeability of the soil are improved.
Detailed Description
The technical solution and the advantages of the present invention will be described in detail with reference to the following embodiments.
In the invention, the biomass charcoal is obtained by thermally cracking one or more biomasses such as straws, rice chaffs, mushroom dregs and the like.
Example 1
An iron tailing treating agent comprises the following raw materials in parts by weight: 5 parts of chlorinating agent, 0.55 part of inorganic oxide, 0.1 part of anthracite, 1 part of organic acid and 0.1 part of pore-forming agent.
The chlorinating agent is CaCl2(ii) a The inorganic oxide is calcium chloride; the organic acid is citric acid; the pore-foaming agent is PVP.
The application of the iron tailing treating agent in preparing the soil conditioner comprises the following steps:
step 1, mixing the iron tailing treating agent and the iron tailing according to a mass ratio of 0.01: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder, 3 parts by weight of plant ash, 15 parts by weight of biomass carbon, 3 parts by weight of phosphorus slag and 3 parts by weight of humic acid to obtain the soil conditioner.
Wherein: in the step 1, the roasting condition is 800 ℃ and 30 min; in the step 2, the grinding granularity of-0.075 mm accounts for 95%, and the magnetic separation intensity is 151.3 kA/m.
Example 2
An iron tailing treating agent comprises the following raw materials in parts by weight: 7 parts of chlorinating agent, 0.8 part of inorganic oxide, 0.2 part of anthracite, 1.2 parts of organic acid and 0.2 part of pore-forming agent.
The chlorinating agent is MgCl2(ii) a The inorganic oxide is calcium chloride; the organic acid is malic acid; the pore-forming agent is PEG.
The application of the iron tailing treating agent in preparing the soil conditioner comprises the following steps:
step 1, mixing the iron tailing treating agent and the iron tailings according to a mass ratio of 0.03: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder obtained in the step 2, 4 parts by weight of plant ash, 17 parts by weight of biomass charcoal, 4 parts by weight of phosphate rock slag and 5 parts by weight of humic acid to obtain the soil conditioner.
Wherein: in the step 1, the roasting condition is 900 ℃ and 25 min; in the step 2, the grinding granularity of-0.075 mm accounts for 95%, and the magnetic separation intensity is 151.3 kA/m.
Example 3
An iron tailing treating agent comprises the following raw materials in parts by weight: 10 parts of chlorinating agent, 2 parts of inorganic oxide, 0.3 part of anthracite, 1.5 parts of organic acid and 0.4 part of pore-foaming agent.
The chlorinating agent is FeCl3(ii) a The inorganic oxide is calcium chloride; the organic acid is tartaric acid; the pore-foaming agent is PVA.
The application of the iron tailing treating agent in preparing the soil conditioner comprises the following steps:
step 1, mixing the iron tailing treating agent and the iron tailings according to a mass ratio of 0.1: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder, 7 parts by weight of plant ash, 21 parts by weight of biomass charcoal, 5 parts by weight of phosphorus slag and 7 parts by weight of humic acid in the step 2 to obtain the soil conditioner.
Wherein: in the step 1, the roasting condition is 1100 ℃ and 20 min; in the step 2, the grinding granularity of-0.075 mm accounts for 95%, and the magnetic separation intensity is 151.3 kA/m.
Example 4
The iron tailing treating agent comprises the following raw materials in parts by weight: 8 parts of chlorinating agent, 1.5 parts of inorganic oxide, 0.4 part of anthracite, 2 parts of organic acid and 0.3 part of pore-forming agent.
The chlorinating agent is CaCl2(ii) a The inorganic oxide is calcium chloride; the organic acid is tartaric acid; the pore-foaming agent is PVP.
The application of the iron tailing treating agent in preparing the soil conditioner comprises the following steps:
step 1, mixing the iron tailing treating agent and the iron tailings according to a mass ratio of 0.08: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder obtained in the step 2, 5 parts by weight of plant ash, 18 parts by weight of biomass charcoal, 4 parts by weight of phosphorus slag and 6 parts by weight of humic acid to obtain the soil conditioner.
Wherein: in the step 1, the roasting condition is 1000 ℃ and 25 min; in the step 2, the grinding granularity of-0.075 mm accounts for 95%, and the magnetic separation intensity is 151.3 kA/m.
The iron tailing treating agent with special composition is designed, the iron tailing is magnetized by combining with specific roasting conditions, and then the iron tailing is made into a soil conditioner, and after the iron tailing treating agent is applied to soil, the effects of loosening the soil, reducing the weight of passengers, increasing the pore structure and enhancing the water permeability can be achieved; and has no toxic or side effect, no public nuisance and no pollution to soil.
Claims (8)
1. An iron tailing treating agent is characterized in that: the raw materials comprise the following components in parts by weight: 5-10 parts of chlorinating agent, 0.5-2 parts of inorganic oxide, 0.1-0.5 part of anthracite, 1-2 parts of organic acid and 0.1-0.5 part of pore-foaming agent.
2. The iron tailings treating agent of claim 1, wherein: the chlorinating agent is selected from CaCl2、NaCl、MgCl2Or FeCl3。
3. The iron tailings treating agent of claim 1, wherein: the inorganic oxide is calcium chloride.
4. The iron tailings treating agent of claim 1, wherein: the organic acid is selected from citric acid, malic acid or tartaric acid.
5. The iron tailings treating agent of claim 1, wherein: the pore-forming agent is selected from PVP, PEG or PVA.
6. Use of the iron tailings treatment agent of any one of claims 1 to 5 in the preparation of a soil conditioner.
7. The use of claim 6, wherein: the method comprises the following steps:
step 1, mixing the iron tailing treating agent and the iron tailings according to a mass ratio of 0.01-0.1: 1, mixing, and roasting the mixture in an inert gas atmosphere;
step 2, recovering tail gas, taking out and grinding the minerals in the step 1 after the temperature of the minerals is reduced to room temperature, and then carrying out magnetic separation to obtain magnetic separation mineral powder;
and 3, mixing 10 parts by weight of the magnetic separation mineral powder obtained in the step 2, 3-8 parts by weight of plant ash, 15-25 parts by weight of biomass charcoal, 3-7 parts by weight of phosphorus slag and 3-8 parts by weight of humic acid to obtain the soil conditioner.
8. The use of claim 7, wherein: the roasting condition in the step 1 is 800-1100 ℃ for 20-30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210278582.4A CN114591749A (en) | 2022-03-21 | 2022-03-21 | Iron tailing treating agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210278582.4A CN114591749A (en) | 2022-03-21 | 2022-03-21 | Iron tailing treating agent and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114591749A true CN114591749A (en) | 2022-06-07 |
Family
ID=81810289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210278582.4A Pending CN114591749A (en) | 2022-03-21 | 2022-03-21 | Iron tailing treating agent and application thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114591749A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831304A (en) * | 2010-04-30 | 2010-09-15 | 张夫道 | Method for using major metal tailings as soil conditioners after innocent treatment |
| CN103387434A (en) * | 2012-05-08 | 2013-11-13 | 刘道 | Multi-element complex microelement fertilizer produced through iron ore tailing magnetization |
| CN106190160A (en) * | 2016-08-02 | 2016-12-07 | 中国地质大学（北京） | A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner |
| CN108913149A (en) * | 2018-06-27 | 2018-11-30 | 来安县出尘茶业有限公司 | A kind of soil conditioner and preparation method thereof |
| CN109400381A (en) * | 2018-12-11 | 2019-03-01 | 王克华 | A kind of formula improving soil |
| CN111363912A (en) * | 2020-04-17 | 2020-07-03 | 包头稀土研究院 | Method for treating rare earth tailings |
| CN112210384A (en) * | 2020-10-20 | 2021-01-12 | 浙江和宸环保科技有限公司 | Soil conditioner based on contaminated soil and preparation method thereof |
-
2022
- 2022-03-21 CN CN202210278582.4A patent/CN114591749A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831304A (en) * | 2010-04-30 | 2010-09-15 | 张夫道 | Method for using major metal tailings as soil conditioners after innocent treatment |
| CN103387434A (en) * | 2012-05-08 | 2013-11-13 | 刘道 | Multi-element complex microelement fertilizer produced through iron ore tailing magnetization |
| CN106190160A (en) * | 2016-08-02 | 2016-12-07 | 中国地质大学（北京） | A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner |
| CN108913149A (en) * | 2018-06-27 | 2018-11-30 | 来安县出尘茶业有限公司 | A kind of soil conditioner and preparation method thereof |
| CN109400381A (en) * | 2018-12-11 | 2019-03-01 | 王克华 | A kind of formula improving soil |
| CN111363912A (en) * | 2020-04-17 | 2020-07-03 | 包头稀土研究院 | Method for treating rare earth tailings |
| CN112210384A (en) * | 2020-10-20 | 2021-01-12 | 浙江和宸环保科技有限公司 | Soil conditioner based on contaminated soil and preparation method thereof |
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