CN103332666B - Sinking agent in a kind of wet-process phosphoric acid concentration treating processes - Google Patents
Sinking agent in a kind of wet-process phosphoric acid concentration treating processes Download PDFInfo
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- CN103332666B CN103332666B CN201310288311.8A CN201310288311A CN103332666B CN 103332666 B CN103332666 B CN 103332666B CN 201310288311 A CN201310288311 A CN 201310288311A CN 103332666 B CN103332666 B CN 103332666B
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- phosphoric acid
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Abstract
A kind of excellent sinking agent for the treatment of concentrated wet-process phosphoric acid, by anionic flocculant, flocculant in non-ion type, sorbent material with send into paddle steel basin except fluorine reagent is 40 ~ 93 parts: 1 ~ 30 part: 1 ~ 40 part: 0 ~ 20 part with ratio of quality and the number of copies, steel basin is by chuck heating and thermal insulation, temperature controls at 60 ~ 80 DEG C, stir complete by solution left standstill 10 ~ 40min, obtained sinking agent.The raw material that excellent sinking agent uses is relatively cheap, and raw material is easily buied, and prepare easy, consumption is few, obviously can shorten the settling time of concentrated wet-process phosphoric acid, effectively reduce Oil repellent, reduce Al simultaneously
3+, Fe
3+, Ca
2+, Mg
2+, Si
4+etc. cationic content, make the concentrated wet-process phosphoric acid quality produced limpid bright, foreign matter content is low provides high-quality raw material for follow-up production.
Description
Technical field
The present invention relates to a kind of sedimentation removal of impurities production technical field of concentrated wet-process phosphoric acid, be specifically related to the excellent sinking agent in a kind of wet-process phosphoric acid concentration treating processes.
Background technology
After passing through the obtained wet-process phosphoric acid concentration of sulfuric acid to leach phosphorus ore at present, obtain finished product through natural subsidence in subsider.Because the phosphoric acid by wet process viscosity after concentrated is comparatively large, shearing stress suffered in natural subsidence process is comparatively large, increases the frictional force of internal fluid, hinders the subsidence rate of phosphoric acid, reduce production efficiency, improve production cost.
The use of phosphoric acid by wet process sinking agent obviously can be shortened the settling time and improve settling efficiency, reduces storage tank quantity, saves space, reduce production cost, simplify production management program, the phosphoric acid by wet process turbidity obtained can be made simultaneously to decline, become limpid, wherein part metals foreign ion Fe
3+, Al
3+, Ca
2+, Mg
2+, Si
4+etc. can be caught by the net of sinking agent, build bridge, roll up sweep, the effect such as charge neutrality is able to part and removes along with the reunion of flco, sedimentation, improve the triviality of the Mass lost of phosphoric acid by wet process subsequent handling and the use of medicament, also reduce the difficulty that phosphoric acid is refining, decrease the discharge of tailings, be conducive to the quality, the reduction production cost that improve subsequent product.
The flocculation agent kind of development research both at home and abroad roughly can be divided three classes at present: inorganic flocculating agent, organic polymer coargulator and biological flocculant.Wherein inorganic flocculating agent is generally inorganic salt and the inorganic polymer salt of Fe and Al; Organic polymer coargulator comprises natural organic high-molecular flocculant and Synthetical Organic Polymeric Flocculants two kinds; Biological flocculant is generally utilize biotechnology to extract from the meta-bolites and secretory product of microorganism, due to the immature of technology and the costliness of cost, does not have large-scale promotion application at present.
For the foreign ion in phosphoric acid by wet process with positively charged ion as Al
3+, Fe
3+, Ca
2+, Mg
2+, Si
4+etc. in the majority, avoid secondary pollution and bring new foreign ion into, the flocculation agent of anionic or non-ionic type should be selected.Therefore, inorganic flocculating agent such as bodied ferric sulfate (PFS) and polymerize aluminum chloride (PAC) are not considered naturally, and then biological flocculant also will not adopt due to the delayed of technological development and the more high factor of Financial cost.
The present situation that current phosphorous chemical industry is produced, phosphorus ore grade is relatively not high, and the concentration of the concentrated wet-process phosphoric acid produced is 46 ~ 48%P
2o
5left and right, viscosity is larger, the content of solid content and foreign ion is higher, the time needed by natural subsidence is longer, and need the quantity of storage tank more, the space occupied is larger, production efficiency is low, produce the of low quality of the concentrated wet-process phosphoric acid obtained, add the difficulty of subsequent technique process, have impact on the quality of derived product.
Summary of the invention
Concrete grammar of the present invention is as follows:
Excellent sinking agent in a kind of wet-process phosphoric acid concentration treating processes is by anionic flocculant, flocculant in non-ion type, sorbent material and except fluorine reagent four part composition, by anionic flocculant, flocculant in non-ion type, sorbent material and except fluorine reagent be 40 ~ 93 parts with mass fraction respectively, 1 ~ 30 part, 1 ~ 40 part, send in paddle steel basin for 0 ~ 20 part, steel basin is by chuck heating and thermal insulation, temperature controls between 60 ~ 80 DEG C, stirring rake is with the stir speed (S.S.) rapid stirring 5 ~ 15min of 200 ~ 500r/min, again with the stir speed (S.S.) low rate mixing 10 ~ 30min of 50 ~ 80r/min, stir complete by solution left standstill 10 ~ 40min, this sinking agent obtained.
Above-mentioned anionic flocculant is one or more in sodium laurylsulfonate, sodium polyacrylate, polyacrylic acid, alkyl benzene sulphonate (ABS), sodium alkyl benzene sulfonate.
Above-mentioned flocculant in non-ion type is one or more in non-ionic polyacrylamide, polyoxyethylene, polyvinyl alcohol, Natvosol.
Above-mentioned sorbent material is one or more in diatomite, wilkinite, gac, molecular sieve.
Above-mentioned except fluorine reagent be one or more in sodium-chlor, sodium hydroxide, calcium oxide, calcium hydroxide, sodium carbonate, potassium hydroxide, salt of wormwood.
Advantage of the present invention: the raw material that excellent sinking agent uses is relatively cheap, and raw material is easily buied, and prepare easy, consumption is few, obviously can shorten the settling time of concentrated wet-process phosphoric acid, effectively reduce Oil repellent, reduce Al simultaneously
3+, Fe
3+, Ca
2+, Mg
2+, Si
4+etc. cationic content, make the concentrated wet-process phosphoric acid quality produced limpid bright, foreign matter content is low provides high-quality raw material for follow-up production.
Embodiment
Embodiment 1:
Sinking agent is 40 parts with mass fraction by sodium laurylsulfonate, polyacrylamide, diatomite and sodium carbonate respectively, and 16 parts, 25 parts, 12 parts are uniformly mixed formulated in steel basin.With 0.23kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 14 hours, and the clearance of fluorine reaches 87%, Fe
3+clearance reaches 17%, Al
3+clearance reach 15%, Mg
2+clearance reach 22%, Ca
2+clearance reach 10%, Si
4+clearance reach 19%, the phosphoric acid by wet process obtained is limpid bright.
Embodiment 2:
Sinking agent is 85 parts with mass fraction by sodium polyacrylate, polyvinyl alcohol, wilkinite and sodium hydroxide respectively, and 20 parts, 35 parts, 16 parts are uniformly mixed formulated in steel basin.With 0.27kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 12 hours, and the clearance of fluorine reaches 92%, Fe
3+clearance reaches 18%, Al
3+clearance reach 21%, Mg
2+clearance reach 24%, Ca
2+clearance reach 27%, Si
4+clearance reach 16%, the phosphoric acid by wet process obtained is limpid bright.
Embodiment 3:
Sinking agent is 92 parts with mass fraction by alkyl benzene sulphonate (ABS), polyoxyethylene, gac and sodium-chlor respectively, and 28 parts, 35 parts, 18 parts are uniformly mixed formulated in steel basin.With 0.29kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 10 hours, and the clearance of fluorine reaches 88%, Fe
3+clearance reaches 13%, Al
3+clearance reach 16%, Mg
2+clearance reach 21%, Ca
2+clearance reach 18%, Si
4+clearance reach 23%, the phosphoric acid by wet process obtained is limpid bright.
Embodiment 4:
Sinking agent is 67 parts with mass fraction by sodium alkyl benzene sulfonate, Natvosol, molecular sieve and calcium hydroxide respectively, and 23 parts, 19 parts, 12 parts are uniformly mixed formulated in steel basin.With 0.36kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 14 hours, and the clearance of fluorine reaches 85%, Fe
3+clearance reaches 11%, Al
3+clearance reach 9%, Mg
2+clearance reach 15%, Ca
2+clearance reach 19%, Si
4+clearance reach 20%, the phosphoric acid by wet process obtained is limpid bright.
Embodiment 5:
Sinking agent is 52 parts with mass fraction by polyacrylic acid, polyvinyl alcohol, wilkinite respectively, and 5 parts, 5 parts are uniformly mixed formulated in steel basin.With 0.30kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 14 hours, and the clearance of fluorine reaches 55%, Fe
3+clearance reaches 6.4%, Al
3+clearance reach 3.4%, Mg
2+clearance reach 4.5%, Ca
2+clearance reach 10%, Si
4+clearance reach 4.8%, the phosphoric acid by wet process obtained is limpider bright.
Embodiment 6:
Sinking agent is 89 parts: 15 parts: 18 parts be uniformly mixed formulated in steel basin with mass fraction by polyacrylic acid, polyvinyl alcohol, wilkinite respectively.With 0.30kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 14 hours, and the clearance of fluorine reaches 68%, Fe
3+clearance reaches 8.4%, Al
3+clearance reach 6%, Mg
2+clearance reach 12.2%, Ca
2+clearance reach 13.5%, Si
4+clearance reach 10.6%, the phosphoric acid by wet process obtained is limpider bright.
Embodiment 7:
Sinking agent is 90 parts: 28 parts: 38 parts be uniformly mixed formulated in steel basin with mass fraction by polyacrylic acid, polyvinyl alcohol, wilkinite respectively.With 0.30kg/t (P
2o
5meter) amount of concentrated wet-process phosphoric acid adds, and sedimentation is after 14 hours, and the clearance of fluorine reaches 77%, Fe
3+clearance reaches 9.5%, Al
3+clearance reach 7.5%, Mg
2+clearance reach 13.8%, Ca
2+clearance reach 15%, Si
4+clearance reach 11%, the phosphoric acid by wet process obtained is limpider bright.
Claims (1)
1. the preparation method of the sinking agent in a wet-process phosphoric acid concentration treating processes, it is characterized in that: preparation method is, by anionic flocculant, flocculant in non-ion type, sorbent material and except fluorine reagent be 40-93 part respectively with mass fraction, 1-30 part, 1-40 part, 0-20 part sends into paddle steel basin, steel basin is by chuck heating and thermal insulation, temperature controls at 60-80 DEG C, stirring rake is with the stir speed (S.S.) rapid stirring 5-15min of 200-500r/min, again with the stir speed (S.S.) low rate mixing 10-30min of 50-80r/min, stir complete by solution left standstill 10-40min, obtained sinking agent,
Described anionic flocculant is one or more in sodium laurylsulfonate, sodium polyacrylate, polyacrylic acid, alkyl benzene sulphonate (ABS), sodium alkyl benzene sulfonate;
Described flocculant in non-ion type is one or more in non-ionic polyacrylamide, polyoxyethylene, polyvinyl alcohol, Natvosol;
Described sorbent material is one or more in diatomite, wilkinite, gac, molecular sieve;
Described except fluorine reagent be one or more in sodium-chlor, sodium hydroxide, sodium carbonate, calcium oxide, calcium hydroxide, potassium hydroxide, salt of wormwood.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288311.8A CN103332666B (en) | 2013-07-10 | 2013-07-10 | Sinking agent in a kind of wet-process phosphoric acid concentration treating processes |
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|---|---|---|---|
| CN201310288311.8A CN103332666B (en) | 2013-07-10 | 2013-07-10 | Sinking agent in a kind of wet-process phosphoric acid concentration treating processes |
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| CN103332666A CN103332666A (en) | 2013-10-02 |
| CN103332666B true CN103332666B (en) | 2015-11-18 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310328A (en) * | 2014-10-09 | 2015-01-28 | 瓮福（集团）有限责任公司 | Method for primary purification of phosphoric acid by using wet process |
| CN106744760A (en) * | 2016-05-03 | 2017-05-31 | 湖北大峪口化工有限责任公司 | The sedimentation agent and method of solids in rapid subsidence phosphoric acid by wet process |
| CN105944451A (en) * | 2016-05-16 | 2016-09-21 | 吴立新 | Polymerizing agent for flocculating barium sulfate during wet process phosphoric acid refinement and flocculating method adopting polymerizing agent |
| CN105948212A (en) * | 2016-06-16 | 2016-09-21 | 上海华友金裕微电子有限公司 | Organic acid sinking agent preparing method |
| CN107043094A (en) * | 2017-04-18 | 2017-08-15 | 云南佳贝节能科技有限公司 | A kind of system of processing of concentrated phosphoric acid |
| CN109437135A (en) * | 2018-11-09 | 2019-03-08 | 湖北富邦科技股份有限公司 | A kind of method of phosphoric acid by wet process decoloration |
| CN109987594A (en) * | 2019-04-01 | 2019-07-09 | 太仓沪试试剂有限公司 | A kind of preparation method of potassium dihydrogen phosphate |
| CN113413643B (en) * | 2021-07-26 | 2022-07-01 | 中建西部建设建材科学研究院有限公司 | Efficient settling method for waste slurry of concrete mixing plant |
| CN114671419B (en) * | 2022-04-06 | 2024-04-12 | 武汉强盛科技有限公司 | Settling agent and method for rapidly reducing solid content of wet-process phosphoric acid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1757988A (en) * | 2004-10-08 | 2006-04-12 | 潘戈 | Converging pipe connecting structure of heat pipe type solar energy collector |
| CN102219198A (en) * | 2011-05-03 | 2011-10-19 | 湖北富邦科技股份有限公司 | Multifunctional sinking agent used in production of phosphoric acid by wet method |
| CN102267691A (en) * | 2011-07-05 | 2011-12-07 | 侯炎学 | Settling agent for wet phosphoric acid refining desulfuration and using method thereof |
-
2013
- 2013-07-10 CN CN201310288311.8A patent/CN103332666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1757988A (en) * | 2004-10-08 | 2006-04-12 | 潘戈 | Converging pipe connecting structure of heat pipe type solar energy collector |
| CN102219198A (en) * | 2011-05-03 | 2011-10-19 | 湖北富邦科技股份有限公司 | Multifunctional sinking agent used in production of phosphoric acid by wet method |
| CN102267691A (en) * | 2011-07-05 | 2011-12-07 | 侯炎学 | Settling agent for wet phosphoric acid refining desulfuration and using method thereof |
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