CN105858628B - A kind of method for improving mid low grade phosphate rock extraction yield - Google Patents
A kind of method for improving mid low grade phosphate rock extraction yield Download PDFInfo
- Publication number
- CN105858628B CN105858628B CN201610400415.7A CN201610400415A CN105858628B CN 105858628 B CN105858628 B CN 105858628B CN 201610400415 A CN201610400415 A CN 201610400415A CN 105858628 B CN105858628 B CN 105858628B
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- China
- Prior art keywords
- low grade
- phosphate rock
- grade phosphate
- mid low
- dispersant
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- 238000000605 extraction Methods 0.000 title claims abstract description 41
- 239000002367 phosphate rock Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002270 dispersing agent Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 11
- 238000000498 ball milling Methods 0.000 claims abstract description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 7
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical group CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 8
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000005360 mashing Methods 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011574 phosphorus Substances 0.000 abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 13
- 229910019142 PO4 Inorganic materials 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 7
- 239000010452 phosphate Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention relates to a kind of method for improving mid low grade phosphate rock extraction yield, mid low grade phosphate rock stone is added in disintegrating machine and first slightly broken, mid low grade phosphate rock stone after slightly breaking enters ball mill, water and dispersant are added in ball mill simultaneously, by mid low grade phosphate rock stone ball milling into ore pulp, ore pulp is squeezed into extraction tank and extracted, and phosphoric acid is made, and detects the extraction yield of phosphorus ore.The addition that this method passes through dispersant, the flocculation between ore pulp and ore pulp after ball milling and between ore pulp and extraction accessory substance ardealite in extraction process can be prevented, the specific surface area that ore contacts with dilute sulfuric acid is improved, so as to effectively improve the extraction yield of phosphorus ore, and saves extraction time.
Description
Technical field
The present invention relates to a kind of method for improving mid low grade phosphate rock extraction yield.
Background technology
China's phosphorus ore reserves are big, occupy the second in the world, and its feature is that rich ore is few, and middle and low grade bauxite is more.But in recent years, due to
The increase of high-concentration compound fertilizer yield, phosphorus ore day of the content more than 30% are becoming tight.And the two water laws production phosphorus that China is traditional
Acid is, it is necessary to using P2O5>=30% high-grade ore, extraction yield can reach more than 99%, P2O5≤ 30% mid low grade phosphate rock,
Due to more containing impurity, if directly extracting, extraction yield is generally below 96%, causes the wasting of resources, and mid low grade phosphate rock needs
Purification by floatation rear can be used.At present there has been no can be by directly extracting mid low grade phosphate rock, the method for improving extraction yield.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of method for improving mid low grade phosphate rock extraction yield.The party
Method can significantly improve the extraction yield of low-grade phosphate ore, reduce enterprise's production cost, economize on resources.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
A kind of method for improving mid low grade phosphate rock extraction yield, it is characterised in that follow the steps below：
1）, mid low grade phosphate rock stone is put into disintegrating machine and slightly broken, obtain product A；
2）, water, dispersant and product A be added separately in ball mill according to certain mass ratio, carry out ball milling in the lump and beat
Slurry；
3）, by step 2）The slurry of preparation is squeezed into extraction tank, is extracted with sulfuric acid, and phosphoric acid is made；
Wherein product A, water, dispersant, the mass ratio of sulfuric acid are 35~50:10~30:0.2~2:25~50；
Described mid low grade phosphate rock stone refers to less than 24%~30%；
The dispersant is HPMA, Sodium Polyacrylate and one kind or arbitrary proportion in 5040 dispersants
It is two or more；The sulfuric acid concentration is 65%.
The dispersant is that HPMA and Sodium Polyacrylate compounding form, HPMA and polypropylene
Sour sodium mass ratio is 3:2.
Wherein the mass ratio of product A, water, dispersant and sulfuric acid is 40:17:1:42.
The present invention has following advantageous effects：
1st, this method can prevent between ore pulp and ore pulp after ball milling by the addition of dispersant and ore pulp is secondary with extracting
Flocculation between product ardealite in extraction process, the specific surface area that ore contacts with dilute sulfuric acid is improved, so as to effectively improve
The extraction yield of phosphorus ore, and save extraction time, extraction yield is up to more than 97.5%.
2nd, present invention process is simple, only carries out simply transforming on existing equipment, will not cause to bear to enterprise.
3rd, the present invention can significantly improve low-grade phosphate ore extraction yield, can solve the problems, such as low-grade phosphate ore using difficult, drop
Low entreprise cost, economizes on resources.
Embodiment
The present invention is further illustrated with reference to instantiation.
Embodiment 1
The low-grade phosphate ore stone of content 25.4% is added in disintegrating machine and first slightly broken, the rock phosphate in powder after slightly breaking is direct
Into ball mill, while water and dispersant are added in ball mill, by rock phosphate in powder ball milling into ore pulp, ore pulp is squeezed into sharp in extraction tank
Extracted with sulfuric acid, phosphoric acid is made.
Rock phosphate in powder, water, HPMA, Sodium Polyacrylate, the mass ratio of 5040 dispersants and sulfuric acid are：40:17:
0.6:0.4:0.3:41.7。
The extraction yield for detecting phosphorus ore is 98.2%.
Embodiment 2
The low-grade phosphate ore stone of content 25.4% is added in disintegrating machine and first slightly broken, the rock phosphate in powder after slightly breaking is direct
Into ball mill, while water and dispersant are added in ball mill, by rock phosphate in powder ball milling into ore pulp, ore pulp is squeezed into sharp in extraction tank
Extracted with sulfuric acid, phosphoric acid is made.
Rock phosphate in powder, water, HPMA, Sodium Polyacrylate, the mass ratio of 5040 dispersants and sulfuric acid are：40:17:
0.6:0.4:42。
The extraction yield for detecting phosphorus ore is 98.6%.
Embodiment 3
The low-grade phosphate ore stone of content 25.4% is added in disintegrating machine and first slightly broken, the rock phosphate in powder after slightly breaking is direct
Into ball mill, while water and dispersant are added in ball mill, by rock phosphate in powder ball milling into ore pulp, ore pulp is squeezed into sharp in extraction tank
Extracted with sulfuric acid, phosphoric acid is made.
Rock phosphate in powder, water, HPMA, the mass ratio of Sodium Polyacrylate and sulfuric acid are：40:17:0.4:0.6:42.
The extraction yield for detecting phosphorus ore is 97.8%.
Embodiment 4
The low-grade phosphate ore stone of content 25.4% is added in disintegrating machine and first slightly broken, the rock phosphate in powder after slightly breaking is direct
Into ball mill, while water and dispersant are added in ball mill, by rock phosphate in powder ball milling into ore pulp, ore pulp is squeezed into sharp in extraction tank
Extracted with sulfuric acid, phosphoric acid is made.
Rock phosphate in powder, water, the mass ratio of 5040 dispersants and sulfuric acid are：40:17:1:42.
The extraction yield for detecting phosphorus ore is 98.2%.
Beneficial effect of the present invention is further illustrated with reference to experimental data：
By taking embodiment 2 as an example, conventional extraction (removing non-bonus point powder, other working conditions are consistent with embodiment 2) and implementation
Example 2 equally detects the results contrast of three order of classes or grades at school of each production, testing result such as table 1
Table 1
| Day shift | The middle class in a kindergarten | Night shift | |
| Conventional extraction extraction yield (%) | 95.7 | 95.1 | 95.2 |
| The extraction yield of embodiment 2 (%) | 98.7 | 98.4 | 98.7 |
Extraction yield of the extraction yield of embodiment 2 apparently higher than conventional extraction as can be seen from Table 1.This method through continuous production not
It was found that there are other problems, it has been applied at present.
Discuss：Find the filtering of the ardealite of by-product of the present invention significantly better than the work for being not added with dispersant through continuous production
Skill, there may be some characteristics of surfactant with dispersant, contribute to the growth of ardealite crystal, forming thick rod crystalline substance has
Close, currently among research.
Claims (3)
- A kind of 1. method for improving mid low grade phosphate rock extraction yield, it is characterised in that follow the steps below：1）, mid low grade phosphate rock stone is put into disintegrating machine and slightly broken, obtain product A；2）, water, dispersant and product A be added separately in ball mill according to certain mass ratio, carry out ball milling mashing in the lump；3）, by step 2）The slurry of preparation is squeezed into extraction tank, is extracted with sulfuric acid, and phosphoric acid is made；Wherein product A, water, dispersant, the mass ratio of sulfuric acid are 35~50:10~30:0.2~2:25~50；Described mid low grade phosphate rock stone refers to less than 24%~30%；The dispersant is HPMA, Sodium Polyacrylate and one kind in 5040 dispersants or two kinds of arbitrary proportion More than；The sulfuric acid concentration is 65%.
- 2. the method according to claim 1 for improving mid low grade phosphate rock extraction yield, it is characterised in that:The dispersant is HPMA and Sodium Polyacrylate compounding form, and HPMA and Sodium Polyacrylate mass ratio are 3:2.
- 3. the method according to claim 1 for improving mid low grade phosphate rock extraction yield, it is characterised in that:Wherein product A, The mass ratio of water, dispersant and sulfuric acid is 40:17:1:42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400415.7A CN105858628B (en) | 2016-06-08 | 2016-06-08 | A kind of method for improving mid low grade phosphate rock extraction yield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400415.7A CN105858628B (en) | 2016-06-08 | 2016-06-08 | A kind of method for improving mid low grade phosphate rock extraction yield |
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| Publication Number | Publication Date |
|---|---|
| CN105858628A CN105858628A (en) | 2016-08-17 |
| CN105858628B true CN105858628B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400415.7A Expired - Fee Related CN105858628B (en) | 2016-06-08 | 2016-06-08 | A kind of method for improving mid low grade phosphate rock extraction yield |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107983539A (en) * | 2017-12-06 | 2018-05-04 | 中南大学 | Application of the hydrolysis of polymaleic anhydride in Scheelite Flotation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699148A (en) * | 2004-05-21 | 2005-11-23 | 李兴才 | Process for producing industrial phosphoric acid using phosphorus ore as raw material |
| CN102643629A (en) * | 2012-04-06 | 2012-08-22 | 湖北富邦科技股份有限公司 | Grinding aid for phosphate rock |
-
2016
- 2016-06-08 CN CN201610400415.7A patent/CN105858628B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699148A (en) * | 2004-05-21 | 2005-11-23 | 李兴才 | Process for producing industrial phosphoric acid using phosphorus ore as raw material |
| CN102643629A (en) * | 2012-04-06 | 2012-08-22 | 湖北富邦科技股份有限公司 | Grinding aid for phosphate rock |
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| Publication number | Publication date |
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| CN105858628A (en) | 2016-08-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Fuzhong Inventor before: Ji Xinqiang |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171225 Address after: 362000 Lingshan Industrial Zone, Tu Town, Quanzhou County, Fujian, Huian Applicant after: FUJIAN DELUSHI LUBRICATING OIL Co.,Ltd. Address before: No. 71, Xicheng village, Yantai, Zhaoyuan City, Zhaoyuan, Shandong Applicant before: Ji Xinqiang |
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Effective date of registration: 20191210 Address after: No.322, building 4, Zone 8, hengtaiyun shopping mall, Nanxiang, Yongqiao District, Suzhou City, Anhui Province Patentee after: Suzhou Ziyuan Science and Technology Consulting Co.,Ltd. Address before: 362000 Lingshan Industrial Zone, Tu Town, Quanzhou County, Fujian, Huian Patentee before: FUJIAN DELUSHI LUBRICATING OIL Co.,Ltd. |
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Effective date of registration: 20200226 Address after: 650300 xiayuanliang village, County Street office, Anning City, Kunming City, Yunnan Province Patentee after: Yunnan Tianning Mining Co.,Ltd. Address before: No.322, building 4, Zone 8, hengtaiyun shopping mall, Nanxiang, Yongqiao District, Suzhou City, Anhui Province Patentee before: Suzhou Ziyuan Science and Technology Consulting Co.,Ltd. |
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Granted publication date: 20180209 |
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