CN109020629A - A kind of technique using asbestos tailings production Si, Ca, Mg, K fertilizer - Google Patents
A kind of technique using asbestos tailings production Si, Ca, Mg, K fertilizer Download PDFInfo
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- CN109020629A CN109020629A CN201811033507.1A CN201811033507A CN109020629A CN 109020629 A CN109020629 A CN 109020629A CN 201811033507 A CN201811033507 A CN 201811033507A CN 109020629 A CN109020629 A CN 109020629A
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- winnowing
- serpentine
- fertilizer
- selection
- ball
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of techniques using asbestos tailings production Si, Ca, Mg, K fertilizer, by serpentine raw material, 3cm or so is arrived using cone crushing first, is then added to ball milling in ball mill, Ball-milling Time is 30~40min, and the granularity of serpentine is controlled in 250 mesh or so；KCl particle is added into ball mill, additional amount is 1/9th of serpentine quality, continues ball milling operation 30min；When the material granularity in ball mill is greater than 300 mesh, start to discharge, winnowing machine is arrived in discharging；Winnowing machine uses 6kg pressure, carries out selection by winnowing for powder；Directly pack use as chemical fertilizer pulvis by the material of selection by winnowing, or the raw material as chemical fertilizer uses, not over the material of selection by winnowing, after rotating cylinder discharging, as metallurgical raw material be subject to using.The present invention can carry out harmless treatment to asbestos tailings, turn waste into wealth, reduce environmental hazard.
Description
Technical field
The present invention relates to a kind of techniques using asbestos tailings production Si, Ca, Mg, K fertilizer.
Background technique
Asbestos are important a kind of raw mineral materials during the development of the national economy.Asbestos fecund is born in serpentine mineral band,
One ton of asbestos of every production generate 40 tons of tailing waste thing serpentinite.Asbestos tailings are because rich in the weight such as Cr, nickel, cobalt, copper, iron
Metal, it is serious for the harm of environment and animals and plants, it is typical danger wastes, originates in Altun and Kun Lun Mountain exists
The ingredient of asbestos tailings in Ruoqiang border of the county is as in the table below:
According to above table it is found that serpentine is a kind of hydrosilicate mineral of magnesium.Its chemical composition is 3MgO
2SiO2·2H2O or MgO [Si4O10](OH)8, the content of beary metal among asbestos tailings is big, larger for the harm of soil.
Consulting literatures (1) are old, which to start " steel-making data atlas " that friend is write page 936, has: " serpentinite is able to produce fertilizer
And refractory material " content statement；(2) regulation among NY1110-2010, Cr, Pb content among fertilizer are lower than 50ppm, As,
Cd content is lower than 10ppm, and Hg is lower than the prescribed requirement of 5ppm；(3) Fu Jiangang, Wang Hui et al. are on 2007 " hydrometallurgy " magazines
Among the paper for publishing entitled " development and utilization situation and development trend of serpentine ore ", there is following content statement: " using snake
Masonry ingredient can manufacture water soluble phosphorous fertilizer, and the corporate boss using serpentine production calcium magnesium phosphate domestic at present will have Guangxi phosphate fertilizer
Factory, YUNLAN Phosphor Fertilizer Plant, Donghai Area, Jiangsu phosphate fertilizer plant etc..Its production technology uses smelting process ".
It is stated according to above content, there is presently no remove in the process for soil about using serpentine production chemical fertilizer
The content introduction of harmful element Cr produces fertilizer by main material of serpentine also not about mechano-chemical reation principle is utilized
The process introduction of material.
Summary of the invention
The purpose of the present invention is to provide a kind of techniques using asbestos tailings production Si, Ca, Mg, K fertilizer, can be to asbestos tail
Mine carries out harmless treatment, turns waste into wealth, and reduces environmental hazard.
The object of the present invention is achieved like this, a kind of technique using asbestos tailings production Si, Ca, Mg, K fertilizer, by snake
Stone raw material arrive 3cm or so using cone crushing first, is then added to ball milling in ball mill, Ball-milling Time for 30~
40min controls the granularity of serpentine in 250 mesh or so；KCl particle is added into ball mill, additional amount is serpentine quality
1/9th, continue ball milling operation 30min；When the material granularity in ball mill is greater than 300 mesh, start to discharge, wind is arrived in discharging
Select machine；Winnowing machine uses 6kg pressure, carries out selection by winnowing for powder；Directly being packed by the material of selection by winnowing as chemical fertilizer pulvis makes
With, or raw material as chemical fertilizer uses, and is made after rotating cylinder discharging as metallurgical raw material not over the material of selection by winnowing
With.
Inventor's discovery when handling Ruoqiang county according to the serpentine raw material for gulping down not clarke town, due to rich among serpentine
Oxide containing elements such as Cr, Ni, Co, Fe, above various minerals, structure are by one layer of oxygen-octahedron and one layer of hydrogen
The double-layer structure that oxygen magnesium octahedron is combined into, is mixed into a small amount of FeO, Fe sometimes2O3、NiO、CoO、Cr2O3Deng.Wherein hydrogen-oxygen
Change the Mg among magnesium structure2+, by Cr3+、Ni2+、Co2+Deng substitution.Due to above this structure, when producing chemical fertilizer, removal is wherein
Heavy metal harmful element difficulty it is larger, it is necessary to using melting method production.But fusion method produces chemical fertilizer process cost
Higher, process is longer, larger for the harm of environment.
Inventors have found that the above structure of serpentine, using the mineral formation feature of serpentine, using mechanical force and chemical
Reaction principle can separate harmful element Cr therein, and in mechanical force using the technique of ball mill cooperation selection by winnowing
It learns under reagentia, the SiO among serpentine2, Mg(OH)2Etc. changing, the solubility in citric acid oxidation that plant can absorb is formed
Object is a kind of process using the anti-principle production Si, Ca, Mg, K fertilizer of mechanical force and chemical.
Technical principle of the invention:
Technical principle of the invention is based on 4 innovative points below:
(1) after being crushed serpentine using ball mill, using mechano-chemical reation principle, under the action of ball mill, by snake
For line stone ball milling between 250~450 mesh, the mechanical energy of ball mill changes SiO among serpentine2Crystal structure so that tool
There is the tetrahedral structure that can be absorbed by plants；
(2) when serpentinite is milled down between 250~300 mesh by ball mill, the KCl particle than being classified as 10% is added into ball mill,
Continue ball milling 20min, granularity control between 300~450 mesh, this stage utilize mechano-chemical reation principle so that KCl with
Hydroxide reaction in powder, makes some of heavy metallic oxides be converted into chloride, while realizing point of carbonate
Solution reaction, MgO are changed into the structure with solubility in citric acid；
(3) after the operation more than from ball mill discharging to winnowing machine in.Wherein the pressure of winnowing machine and air quantity are exerted according to cypress
Sharp equation and MgO, SiO2Specific gravity determine；Its core innovative point is to be greater than silico-calcium magnesium-potassium according to the compound specific gravity of heavy metal
The specific gravity of object is closed to implement.
(4) after selection by winnowing, specific gravity is larger, it not over the material of selection by winnowing, is utilized as metallurgical raw material, the material after selection by winnowing
It into feed bin, is packed, the raw material as chemical fertilizer or chemical fertilizer uses.
The method of the present invention step is reasonable, can carry out harmless treatment to asbestos tailings, turn waste into wealth, reduce environment danger
Evil.
Specific embodiment
By taking Ruoqiang county is according to the not actual production in clarke town is gulped down as an example:
A kind of technique using asbestos tailings production Si, Ca, Mg, K fertilizer:
1) by serpentine raw material, 3cm or so is arrived using cone crushing first, is then added to ball milling in ball mill, ball
Time consuming is 30~40min, and the granularity of serpentine is controlled in 250 mesh or so；
2) KCl particle is added into ball mill, additional amount is 1/9th of serpentine quality, continues ball milling operation 30min；
3) when the material granularity in ball mill is greater than 300 mesh, start to discharge, winnowing machine is arrived in discharging；
4) winnowing machine uses 6kg pressure, carries out selection by winnowing for powder；
5) use is directly packed as chemical fertilizer pulvis by the material of selection by winnowing, or the raw material as chemical fertilizer uses, not over
The material of selection by winnowing, from rotating cylinder discharging after, as metallurgical raw material be subject to using.
Claims (1)
1. a kind of technique using asbestos tailings production Si, Ca, Mg, K fertilizer, it is characterised in that: by serpentine raw material, first using circle
Conic crusher is crushed to 3cm or so, is then added to ball milling in ball mill, Ball-milling Time is 30~40min, by the grain of serpentine
Degree control is in 250 mesh or so；KCl particle is added into ball mill, additional amount is 1/9th of serpentine quality, continues ball milling
Operation 30min；When the material granularity in ball mill is greater than 300 mesh, start to discharge, winnowing machine is arrived in discharging；Winnowing machine is pressed using 6kg
Power carries out selection by winnowing for powder；Use, or the raw material as chemical fertilizer are directly packed as chemical fertilizer pulvis by the material of selection by winnowing
Use, not over the material of selection by winnowing, after rotating cylinder discharging, as metallurgical raw material be subject to using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033507.1A CN109020629B (en) | 2018-09-05 | 2018-09-05 | Process for producing silicon-calcium-magnesium-potassium fertilizer by using asbestos tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033507.1A CN109020629B (en) | 2018-09-05 | 2018-09-05 | Process for producing silicon-calcium-magnesium-potassium fertilizer by using asbestos tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109020629A true CN109020629A (en) | 2018-12-18 |
| CN109020629B CN109020629B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811033507.1A Active CN109020629B (en) | 2018-09-05 | 2018-09-05 | Process for producing silicon-calcium-magnesium-potassium fertilizer by using asbestos tailings |
Country Status (1)
| Country | Link |
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| CN (1) | CN109020629B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176132A (en) * | 2020-09-25 | 2021-01-05 | 新疆互力佳源环保科技有限公司 | Resource utilization process for utilizing steelmaking production in cooperation with waste asbestos |
| CN114380626A (en) * | 2021-06-10 | 2022-04-22 | 若羌县圣地石棉尾料再利用科技开发有限公司 | Preparation method for extracting medium-trace element fertilizer by using asbestos tailings |
| CN114716269A (en) * | 2022-03-31 | 2022-07-08 | 华南理工大学 | Method for preparing citrate soluble fertilizer by roasting, detoxifying and activating asbestos tailings or nickel-iron slag |
Citations (5)
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|---|---|---|---|---|
| CN102500455A (en) * | 2011-12-21 | 2012-06-20 | 湖北工业大学 | Tailing efficient recovery treatment method |
| CN102921535A (en) * | 2012-11-07 | 2013-02-13 | 牛庆君 | Method for recycling gold from serpentine asbestos rock type asbestos tailings |
| CN103172409A (en) * | 2011-12-22 | 2013-06-26 | 清华大学 | Process for preparing non-soluble potassium fertilizer by using potassium-bearing minerals |
| CN104232899A (en) * | 2014-08-21 | 2014-12-24 | 同济大学 | Method for separating and enriching zinc and lead from heavy metal-polluted construction waste |
| RU2579201C1 (en) * | 2014-10-20 | 2016-04-10 | Андрей Рудольфович Предтеченский | Method of producing potassium humate and facility |
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2018
- 2018-09-05 CN CN201811033507.1A patent/CN109020629B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500455A (en) * | 2011-12-21 | 2012-06-20 | 湖北工业大学 | Tailing efficient recovery treatment method |
| CN103172409A (en) * | 2011-12-22 | 2013-06-26 | 清华大学 | Process for preparing non-soluble potassium fertilizer by using potassium-bearing minerals |
| CN102921535A (en) * | 2012-11-07 | 2013-02-13 | 牛庆君 | Method for recycling gold from serpentine asbestos rock type asbestos tailings |
| CN104232899A (en) * | 2014-08-21 | 2014-12-24 | 同济大学 | Method for separating and enriching zinc and lead from heavy metal-polluted construction waste |
| RU2579201C1 (en) * | 2014-10-20 | 2016-04-10 | Андрей Рудольфович Предтеченский | Method of producing potassium humate and facility |
Non-Patent Citations (1)
| Title |
|---|
| 任瑞晨、张开永: "《金属矿与非金属矿加工技术》", 31 March 2018, 中国矿业大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176132A (en) * | 2020-09-25 | 2021-01-05 | 新疆互力佳源环保科技有限公司 | Resource utilization process for utilizing steelmaking production in cooperation with waste asbestos |
| CN112176132B (en) * | 2020-09-25 | 2022-06-21 | 新疆互力佳源环保科技有限公司 | Resource utilization process for utilizing steelmaking production in cooperation with waste asbestos |
| CN114380626A (en) * | 2021-06-10 | 2022-04-22 | 若羌县圣地石棉尾料再利用科技开发有限公司 | Preparation method for extracting medium-trace element fertilizer by using asbestos tailings |
| CN114716269A (en) * | 2022-03-31 | 2022-07-08 | 华南理工大学 | Method for preparing citrate soluble fertilizer by roasting, detoxifying and activating asbestos tailings or nickel-iron slag |
| CN114716269B (en) * | 2022-03-31 | 2023-11-10 | 华南理工大学 | Method for preparing citrate-soluble fertilizer by roasting and detoxication/activation of asbestos tailings or ferronickel slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109020629B (en) | 2021-04-30 |
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Effective date of registration: 20210408 Address after: 100028 3914, 1-3 / F, 1-5 / F, building 1, No.5, Liufang Nanli, Chaoyang District, Beijing Applicant after: BEIJING PUYU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 841800 Room 301, unit 3, building 1, No.1 community, Ruoqiang County, Bayinguoleng Mongolian Autonomous Prefecture, Xinjiang Uygur Autonomous Region Applicant before: RUOJIANG SHENGDI ASBESTOS TAILING REUTILIZATION TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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