CN103641090B - High-purity yellow phosphorus production equipment and method - Google Patents
High-purity yellow phosphorus production equipment and method Download PDFInfo
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- CN103641090B CN103641090B CN201310576024.7A CN201310576024A CN103641090B CN 103641090 B CN103641090 B CN 103641090B CN 201310576024 A CN201310576024 A CN 201310576024A CN 103641090 B CN103641090 B CN 103641090B
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Abstract
The invention discloses a kind of high-purity yellow phosphorus production equipment and method, the method is after the air in first fully substitutionary oxydation groove, and oxygenant, catalyzer, yellow phosphorus are added oxidation trough respectively, after reaction 1-3h, and stratification; Then rinse bath washing yellow phosphorus is entered; Crystallizer crystallization is entered after washing, then washing crystal; Enter pressure phosphorus tank subsequently; By regulating temperature of charge in pressure phosphorus tank chuck hot water flow adjustment pressure phosphorus tank, yellow phosphorus is made to be in liquid state; The yellow phosphorus press-in strainer in pressure phosphorus tank, the yellow phosphorus after filtration enters the finished product stocking system.Present invention employs oxidation, washing, crystallization, filtration method purifying is carried out to yellow phosphorus, the purity of phosphorus can be improved, and not affect yellow phosphorus quality.
Description
Technical field
The present invention relates to a kind of Of Yellow Phosphorus Plants, particularly a kind of high-purity yellow phosphorus production equipment.
Background technology
In industrial yellow phosphorus beyond arsenic removal, also containing mechanical impurity, inorganic impurity and organic matter.These impurity mainly contain: metallic element: Ca, Fe, Al, Mg, Sr, Mn, Na, K, Ti, V, Cr, Ni, Ga, Cd, Cu, Sb, Pb, Zn, Sn, U.
Semimetallic elements: Se, Si, C, B, As, Bi.
Organism: phenol, anthracene, tar and polyatom polycyclic aromatic hydrocarbons, more than about 30 kinds.
Owing to containing above-mentioned impurity in industrial yellow phosphorus, have a strong impact on its range of application, and the purposes of high purity phosphorus Chemicals is very extensive, for high purity phosphorus, InP, GaP etc. are the important source material in electronic industry, are the doping agents of planar expitaxial transistor and unicircuit; At petrochemical field, highly purified PCl3, P2O5 are advanced lubrication oil additivess; In pharmaceutical industries, high purity phosphorus is the raw material of the medicines such as production immunosuppressor, vasodilator, nootropic agents; In addition, high purity phosphorus is also widely used in fields such as foodstuffs industry, automobile making, military project, aviations.
Containing inorganic impurity, organic impurity and mechanical impurity in yellow phosphorus, have a strong impact on range of application and the economic value added of yellow phosphorus, for this reason Research Centers more both domestic and external in one's power colleges and universities all in the removal methods of research yellow phosphorus impurity.But because of the complicacy of yellow phosphorus impurity, the chemical method making it report and the physical method arsenic removed in yellow phosphorus is all faced with that phosphorous recovery is low, refining effect is limited, etc. problem.
The impurity component of industrial yellow phosphorus is very complicated, adopt a kind of single method method, is difficult to reach desirable, economic effect, and the multiple method of purification therefore must be adopted to be coupled.
Summary of the invention
The object of the invention is to: one high-purity yellow phosphorus production equipment is safely and efficiently provided.To adapt to the needs of large-scale production, reach production operation controllability strong, the object that yellow phosphorus purification efficiency is high.
Technical scheme of the present invention: a kind of high-purity yellow phosphorus production equipment, comprises oxidation unit, washing device, crystallization apparatus and filtration unit;
Described oxidation unit comprises phosphorus-melting groove and oxidation trough; Described phosphorus-melting groove top is provided with yellow phosphorus import, and be provided with yellow phosphorus outlet bottom phosphorus-melting groove, described phosphorus-melting groove skin is provided with insulation jacket, and the bottom of described insulation jacket is provided with the import of insulation liquid, is incubated liquid outlet being provided with upper lateral part of insulation jacket insulation liquid import; Described oxidation trough top arranges the import of oxidation trough yellow phosphorus, oxidant inlet, catalyst inlet, nitrogen inlet and offgas outlet respectively; The bottom of described oxidation trough is respectively equipped with the outlet of oxidation trough yellow phosphorus and waste liquid outlet; Described oxidation trough inside is provided with agitator;
Described washing device is formed primarily of rinse bath, and described rinse bath top arranges the import of rinse bath yellow phosphorus, nitrogen inlet, ultrapure water import and offgas outlet respectively, and be provided with the outlet of rinse bath yellow phosphorus bottom described rinse bath, the downside of rinse bath is provided with wastewater outlet; Described rinse bath inside is provided with agitator;
Described crystallizer top arranges the import of crystallizer yellow phosphorus, the import of yellow phosphorus lysate respectively, and the side surface upper part of crystallizer is also provided with washings import, and the bottom of crystallizer is provided with the outlet of crystallizer yellow phosphorus; Described crystallizer outside is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with crystallizer cooling liquid inlet, is provided with crystallizer cooling liquid outlet at thermal insulation layer to upper lateral part;
Described filtration unit comprises strainer and pressure phosphorus tank; The top of described pressure phosphorus tank is respectively equipped with the tank yellow phosphorus import of pressure phosphorus and the outlet of pressure phosphorus tank yellow phosphorus, and the side surface upper part of pressure phosphorus tank is provided with phosphorous liquid flooding mouth; Described filter top is respectively equipped with the import of strainer yellow phosphorus and washings import, and the bottom of described strainer is provided with yellow phosphorus outlet, and the bottom of described strainer is provided with sludge outlet;
Described phosphorus-melting groove yellow phosphorus outlet is connected to the import of oxidation trough yellow phosphorus by pipeline; Described oxidation trough yellow phosphorus outlet is connected to rinse bath yellow phosphorus inlet line and is provided with yellow phosphorus pump; The outlet of rinse bath yellow phosphorus is connected to the import of crystallizer yellow phosphorus by pipeline; The pipeline that described crystallizer yellow phosphorus outlet is connected to the import of pressure phosphorus tank yellow phosphorus is provided with yellow phosphorus transferpump; Described pressure phosphorus tank yellow phosphorus outlet is connected to the import of strainer yellow phosphorus by pipeline.
The outside of described pressure phosphorus tank is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with the import of pressure phosphorus tank insulation liquid, is provided with the outlet of pressure phosphorus tank insulation liquid on the top of thermal insulation layer.
The outside of described strainer is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with the import of strainer insulation liquid, is provided with the outlet of strainer insulation liquid at thermal insulation layer to upper lateral part.
Above-mentioned oxidation trough is also provided with insulation jacket, and insulation jacket is provided with oxidation trough insulation liquid import and the outlet of oxidation trough insulation liquid.
Above-mentioned rinse bath is also provided with insulation jacket, and insulation jacket is provided with rinse bath insulation liquid import and the outlet of rinse bath insulation liquid.
The filtering micropore size of the filter core of above-mentioned strainer is at 2 ~ 5um.
Utilize a production method for above-mentioned high-purity yellow phosphorus production equipment, key step comprises: industrial yellow phosphorus is added phosphorus-melting groove by (1), keeps insulation liquid in insulation jacket at 60 DEG C-80 DEG C, to ensure that yellow phosphorus is in liquid state; (2) nitrogen gas generating device is started, nitrogen enters oxidation trough and enters exhaust treatment system from offgas outlet, after air in abundant substitutionary oxydation groove, oxygenant and catalyzer are added oxidation trough from oxidant inlet, catalyst inlet respectively, yellow phosphorus also sends into oxidation trough, start agitator, adjustment oxidation trough jacket water (J.W.) flow control temperature of reaction 70 DEG C-80 DEG C; After reaction 1-3h, stop stirring, leave standstill and make the abundant layering of the material in oxidation trough; In yellow phosphorus the impurity such as arsenic oxidized after enter waste liquid, be discharged to liquid waste treatment system from spent acid outlet; (3) add ultrapure water from ultrapure water import to rinse bath, yellow phosphorus is added rinse bath from oxidation trough, start agitator, adjustment rinse bath jacket water (J.W.) flow control wash temperature, after stirring certain hour, stop stirring, leave standstill and make the abundant layering of the material in rinse bath; (4) yellow phosphorus lysate (as dithiocarbonic anhydride etc.) is added to crystallizer, yellow phosphorus enters crystallizer from rinse bath, regulate the flow control Tc of the thermal insulation layer cooling fluid of crystallizer, yellow phosphorus crystallization post crystallization mother liquor enters lysate regenerative ratio system; In crystallizer tank, add crystal washings again, after washing is good, washings enters washings regeneration system rapidly; (5) yellow phosphorus is entered pressure phosphorus tank; By regulating temperature of charge in pressure phosphorus tank chuck hot water flow adjustment pressure phosphorus tank, yellow phosphorus is made to be in liquid state; Then by the yellow phosphorus press-in strainer in pressure phosphorus tank, the yellow phosphorus after filtration enters the finished product stocking system, and filter residue then enters yellow phosphorus acid making system and fully utilizes.
Advantage of the present invention: comprehensively have employed oxidation, washing, crystallization, filtration method purifying is carried out to yellow phosphorus, can improve the purity of phosphorus, and the connecting of whole device unit is good, production operation serialization, not easily leaks, can not to environment; And equipment of the present invention have employed the thermal insulation layer of jacketed type, can be good at control temperature, decrease the waste of the energy, compared to existing external heat power supply device, not only reduce equipment cost, decrease the energy waste in heat trnasfer, and waste gas waste residue can not be produced, saving equipment takes up an area, and does not affect yellow phosphorus quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
1-is incubated liquid import; The import of 2-yellow phosphorus; 3-oxidation trough; 4-rinse bath; 5-is incubated liquid outlet; 6-yellow phosphorus exports; 7-phosphorus-melting groove; 8-presses the import of phosphorus tank yellow phosphorus; 9-presses the outlet of phosphorus tank insulation liquid; 10-presses the outlet of phosphorus tank yellow phosphorus; The phosphorous hydrorrhea head piece of 11-; 12-presses phosphorus tank; 13-presses the import of phosphorus tank insulation liquid; The import of 14-washings; 15-strainer; The import of 16-strainer insulation liquid; The import of 17-strainer yellow phosphorus; The outlet of 18-strainer insulation liquid; 19-strainer yellow phosphorus exports; 20-sludge outlet; The import of 21-oxidation trough yellow phosphorus; 22-oxidant inlet; 23-catalyst inlet; 24-nitrogen inlet; 25-offgas outlet; The outlet of 26-oxidation trough insulation liquid; The import of 27-oxidation trough insulation liquid; 28 oxidation trough agitators; The import of 29-rinse bath yellow phosphorus; The import of 30-rinse bath insulation liquid; 31-rinse bath nitrogen inlet; The import of 32-rinse bath ultrapure water; 33-rinse bath offgas outlet; The outlet of 34-rinse bath insulation liquid; 35-wastewater outlet; 36-rinse bath agitator; 37-spent acid exports; 38-oxidation trough yellow phosphorus exports; The import of 39-crystallizer yellow phosphorus; The import of 40-yellow phosphorus lysate; The import of 41-washings; 42-crystallizer cooling liquid inlet; 43-crystallizer cooling liquid outlet; 44-crystallizer; 45-crystallizer yellow phosphorus exports.
Embodiment
Embodiment
A kind of high-purity yellow phosphorus production equipment, comprises oxidation unit, washing device, crystallization apparatus and filtration unit;
Described oxidation unit comprises phosphorus-melting groove 7 and oxidation trough 3; Described phosphorus-melting groove 7 top is provided with yellow phosphorus import 2, yellow phosphorus outlet 6 is provided with bottom phosphorus-melting groove 7, described phosphorus-melting groove 7 skin is provided with insulation jacket, and the bottom of described insulation jacket is provided with insulation liquid import 1, is incubated liquid outlet 5 being provided with upper lateral part of insulation jacket insulation liquid import; Described oxidation trough 3 top arranges oxidation trough yellow phosphorus import 21, oxidant inlet 22, catalyst inlet 23, nitrogen inlet 24 and offgas outlet 25 respectively; The bottom of described oxidation trough 3 is respectively equipped with oxidation trough yellow phosphorus outlet 38 and spent acid outlet 37; Described oxidation trough 7 inside is provided with agitator 28;
Described washing device is formed primarily of rinse bath 4, described rinse bath 4 top arranges rinse bath yellow phosphorus import 29, nitrogen inlet 31, ultrapure water import 32 and offgas outlet 33 respectively, be provided with the outlet of rinse bath yellow phosphorus bottom described rinse bath 4, the downside of rinse bath 4 is provided with wastewater outlet 35; Described rinse bath 4 inside is provided with agitator 36; Described crystallizer 44 top arranges crystallizer yellow phosphorus import 39, yellow phosphorus lysate import 40 respectively, and the side surface upper part of crystallizer 44 is also provided with washings import 41, and the bottom of crystallizer 44 is provided with crystallizer yellow phosphorus outlet 45; Described crystallizer 44 outside is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with crystallizer cooling liquid inlet 42, is provided with crystallizer cooling liquid outlet 43 at thermal insulation layer to upper lateral part;
Described filtration unit comprises strainer 15 and pressure phosphorus tank 12; The top of described pressure phosphorus tank 12 is respectively equipped with pressure phosphorus tank yellow phosphorus import 8 and pressure phosphorus tank yellow phosphorus outlet 10, the side surface upper part of pressure phosphorus tank 8 is provided with phosphorous liquid flooding mouth 11, the outside of described pressure phosphorus tank 12 is provided with thermal insulation layer, the bottom of thermal insulation layer is provided with pressure phosphorus tank insulation liquid import 13, is provided with pressure phosphorus tank insulation liquid outlet 9 on the top of thermal insulation layer; Described strainer 15 top is respectively equipped with strainer yellow phosphorus import 17 and washings import 14, and the bottom of described strainer 15 is provided with strainer yellow phosphorus outlet 19, and the bottom of described strainer 15 is provided with sludge outlet 20; The outside of described strainer 15 is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with strainer insulation liquid import 16, is provided with strainer insulation liquid outlet 18 at thermal insulation layer to upper lateral part;
Described phosphorus-melting groove yellow phosphorus outlet 6 is connected to oxidation trough yellow phosphorus import 21 by pipeline; Described oxidation trough yellow phosphorus outlet 38 is connected to rinse bath yellow phosphorus import 29 pipeline and is provided with yellow phosphorus pump; The outlet of rinse bath yellow phosphorus is connected to crystallizer yellow phosphorus import 39 by pipeline; The pipeline that described crystallizer yellow phosphorus outlet 45 is connected to pressure phosphorus tank yellow phosphorus import 8 is provided with yellow phosphorus transferpump; Described pressure phosphorus tank yellow phosphorus outlet 10 is connected to strainer yellow phosphorus import 17 by pipeline.
Above-mentioned oxidation trough 3 is also provided with insulation jacket, and insulation jacket is provided with oxidation trough insulation liquid import 27 and oxidation trough insulation liquid outlet 26.
Above-mentioned rinse bath 4 is also provided with insulation jacket, and insulation jacket is provided with rinse bath insulation liquid import 30 and rinse bath insulation liquid outlet 34.
The filtering micropore size of the filter core of above-mentioned strainer 15 is at 2 ~ 5um.
Utilize a production method for above-mentioned high-purity yellow phosphorus production equipment, key step comprises: industrial yellow phosphorus is added phosphorus-melting groove by (1), keeps insulation liquid in insulation jacket at 60 DEG C-80 DEG C, to ensure that yellow phosphorus is in liquid state; (2) nitrogen gas generating device is started, nitrogen enters oxidation trough and enters exhaust treatment system from offgas outlet, after air in abundant substitutionary oxydation groove, oxygenant and catalyzer are added oxidation trough from oxidant inlet, catalyst inlet respectively, yellow phosphorus also sends into oxidation trough, start agitator, adjustment oxidation trough jacket water (J.W.) flow control temperature of reaction 70 DEG C-80 DEG C; After reaction 1-3h, stop stirring, leave standstill and make the abundant layering of the material in oxidation trough; In yellow phosphorus the impurity such as arsenic oxidized after enter waste liquid, be discharged to liquid waste treatment system from spent acid outlet; (3) add ultrapure water from ultrapure water import to rinse bath, yellow phosphorus is added rinse bath from oxidation trough, start agitator, adjustment rinse bath jacket water (J.W.) flow control wash temperature, after stirring certain hour, stop stirring, leave standstill and make the abundant layering of the material in rinse bath; (4) add dithiocarbonic anhydride to crystallizer, yellow phosphorus enters crystallizer from rinse bath, and regulate the flow control Tc of the crystallizer cooling fluid of thermal insulation layer, yellow phosphorus crystallization post crystallization mother liquor enters lysate regenerative ratio system; In crystallizer tank, add crystal washings again, after washing is good, washings enters washings regeneration system rapidly; (5) yellow phosphorus is entered pressure phosphorus tank; By regulating temperature of charge in pressure phosphorus tank chuck hot water flow adjustment pressure phosphorus tank, yellow phosphorus is made to be in liquid state; Then by the yellow phosphorus press-in strainer in pressure phosphorus tank, the yellow phosphorus after filtration enters the finished product stocking system, and filter residue then enters yellow phosphorus acid making system and fully utilizes.
Claims (7)
1. a high-purity yellow phosphorus production equipment, is characterized in that this device comprises oxidation unit, washing device, crystallizer and filtration unit;
Described oxidation unit comprises phosphorus-melting groove (7) and oxidation trough (3); Described phosphorus-melting groove (7) top is provided with yellow phosphorus import (2), phosphorus-melting groove (7) bottom is provided with yellow phosphorus outlet (6), described phosphorus-melting groove (7) skin is provided with insulation jacket, the bottom of described insulation jacket is provided with insulation liquid import (1), is incubated liquid outlet (5) being provided with upper lateral part of insulation jacket insulation liquid import; Described oxidation trough (3) top arranges oxidation trough yellow phosphorus import (21), oxidant inlet (22), catalyst inlet (23), nitrogen inlet (24) and offgas outlet (25) respectively; The bottom of described oxidation trough (3) is respectively equipped with the outlet of oxidation trough yellow phosphorus (38) and waste liquid outlet (37); Described oxidation trough (3) inside is provided with agitator (28);
Described washing device is formed primarily of rinse bath (4), described rinse bath (4) top arranges rinse bath yellow phosphorus import (29), nitrogen inlet (31), ultrapure water import (32) and offgas outlet (33) respectively, described rinse bath (4) bottom is provided with the outlet of rinse bath yellow phosphorus, and the downside of rinse bath (4) is provided with wastewater outlet (35); Described rinse bath (4) inside is provided with agitator (36);
Described crystallizer (44) top arranges crystallizer yellow phosphorus import (39), yellow phosphorus lysate import (40) respectively, the side surface upper part of crystallizer (44) is also provided with washings import (41), and the bottom of crystallizer (44) is provided with crystallizer yellow phosphorus outlet (45); Described crystallizer (44) outside is provided with thermal insulation layer, and the bottom of thermal insulation layer is provided with crystallizer cooling liquid inlet (42), is provided with crystallizer cooling liquid outlet (43) at thermal insulation layer to upper lateral part;
Described filtration unit comprises strainer (15) and pressure phosphorus tank (12); The top of described pressure phosphorus tank (12) is respectively equipped with pressure phosphorus tank yellow phosphorus import (8) and pressure phosphorus tank yellow phosphorus outlet (10), the side surface upper part of pressure phosphorus tank (12) is provided with phosphorous liquid flooding mouth (11), described strainer (15) top is respectively equipped with strainer yellow phosphorus import (17) and washings import (14), the bottom of described strainer (15) is provided with strainer yellow phosphorus outlet (19), and the bottom of described strainer (15) is provided with sludge outlet (20);
Described phosphorus-melting groove yellow phosphorus outlet (6) is connected to oxidation trough yellow phosphorus import (21) by pipeline; Described oxidation trough yellow phosphorus outlet (38) is connected to rinse bath yellow phosphorus import (29) pipeline and is provided with yellow phosphorus pump; The outlet of rinse bath yellow phosphorus is connected to crystallizer yellow phosphorus import (39) by pipeline; The pipeline that described crystallizer yellow phosphorus outlet (45) is connected to pressure phosphorus tank yellow phosphorus import (8) is provided with yellow phosphorus transferpump; Described pressure phosphorus tank yellow phosphorus outlet (10) is connected to strainer yellow phosphorus import (17) by pipeline.
2. high-purity yellow phosphorus production equipment as claimed in claim 1, is characterized in that described oxidation trough (3) is also provided with insulation jacket, and insulation jacket is provided with oxidation trough insulation liquid import (27) and oxidation trough insulation liquid outlet (26).
3. high-purity yellow phosphorus production equipment as claimed in claim 1, is characterized in that described rinse bath (4) is also provided with insulation jacket, and insulation jacket is provided with rinse bath insulation liquid import (30) and rinse bath insulation liquid outlet (34).
4. high-purity yellow phosphorus production equipment as claimed in claim 1, it is characterized in that the outside of described pressure phosphorus tank (12) is provided with thermal insulation layer, the bottom of thermal insulation layer is provided with pressure phosphorus tank insulation liquid import (13), is provided with pressure phosphorus tank insulation liquid outlet (9) on the top of thermal insulation layer.
5. high-purity yellow phosphorus production equipment as claimed in claim 1, it is characterized in that the outside of described strainer (15) is provided with thermal insulation layer, the bottom of thermal insulation layer is provided with strainer insulation liquid import (16), is provided with strainer insulation liquid outlet (18) at thermal insulation layer to upper lateral part.
6. high-purity yellow phosphorus production equipment as claimed in claim 1, is characterized in that the filtering micropore size of the filter core of described strainer (15) is at 2 ~ 5um.
7. one kind utilizes the production method of the high-purity yellow phosphorus production equipment described in above-mentioned any one of 1-6 claim, it is characterized in that key step comprises: industrial yellow phosphorus is added phosphorus-melting groove by (1), keep insulation liquid in insulation jacket at 60 DEG C-80 DEG C, to ensure that yellow phosphorus is in liquid state; (2) nitrogen gas generating device is started, nitrogen enters oxidation trough and enters exhaust treatment system from offgas outlet, after air in abundant substitutionary oxydation groove, oxygenant and catalyzer are added oxidation trough from oxidant inlet, catalyst inlet respectively, yellow phosphorus also sends into oxidation trough, start agitator, adjustment oxidation trough jacket water (J.W.) flow control temperature of reaction 70 DEG C-80 DEG C; After reaction 1-3h, stop stirring, leave standstill and make the abundant layering of the material in oxidation trough; In yellow phosphorus arsenic impurities oxidized after enter waste liquid, from spent acid outlet be discharged to liquid waste treatment system; (3) add ultrapure water from ultrapure water import to rinse bath, yellow phosphorus is added rinse bath from oxidation trough, start agitator, adjustment rinse bath jacket water (J.W.) flow control wash temperature, after stirring certain hour, stops stirring, leaves standstill and make the abundant layering of the material in rinse bath; (4) add yellow phosphorus lysate to crystallizer, yellow phosphorus enters crystallizer from rinse bath, and regulate the flow control Tc of the thermal insulation layer cooling fluid of crystallizer, yellow phosphorus crystallization post crystallization mother liquor enters lysate regenerative ratio system; In crystallizer tank, add crystal washings again, after washing is good, washings enters washings regeneration system rapidly; (5) yellow phosphorus is entered pressure phosphorus tank; By regulating temperature of charge in pressure phosphorus tank chuck hot water flow adjustment pressure phosphorus tank, yellow phosphorus is made to be in liquid state; Then by the yellow phosphorus press-in strainer in pressure phosphorus tank, the yellow phosphorus after filtration enters the finished product stocking system, and filter residue then enters yellow phosphorus acid making system and fully utilizes.
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| CN201310576024.7A CN103641090B (en) | 2013-11-18 | 2013-11-18 | High-purity yellow phosphorus production equipment and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0131848A3 (en) * | 1983-07-18 | 1988-06-08 | Hoechst Aktiengesellschaft | Process for the elimination of foreign substances from the circulation of material in the electrothermic preparation of yellow phosphorus |
| CN101054169A (en) * | 2007-04-12 | 2007-10-17 | 贵州开阳国华天鑫磷业有限公司 | Method and device for reclaiming yellow phosphorus by transmitting phosphorus mud to furnace |
| CN101912691A (en) * | 2010-08-20 | 2010-12-15 | 湖北兴发化工集团股份有限公司 | Method and device for performing refined separation on high-purity yellow phosphorous |
| CN203128203U (en) * | 2013-01-16 | 2013-08-14 | 湖北兴发化工集团股份有限公司 | Device for extracting yellow phosphorus via reduced pressure distillation of phosphorus sludge |
| CN203653251U (en) * | 2013-11-18 | 2014-06-18 | 瓮福（集团）有限责任公司 | High-purity yellow phosphorus production device |
-
2013
- 2013-11-18 CN CN201310576024.7A patent/CN103641090B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0131848A3 (en) * | 1983-07-18 | 1988-06-08 | Hoechst Aktiengesellschaft | Process for the elimination of foreign substances from the circulation of material in the electrothermic preparation of yellow phosphorus |
| CN101054169A (en) * | 2007-04-12 | 2007-10-17 | 贵州开阳国华天鑫磷业有限公司 | Method and device for reclaiming yellow phosphorus by transmitting phosphorus mud to furnace |
| CN101912691A (en) * | 2010-08-20 | 2010-12-15 | 湖北兴发化工集团股份有限公司 | Method and device for performing refined separation on high-purity yellow phosphorous |
| CN203128203U (en) * | 2013-01-16 | 2013-08-14 | 湖北兴发化工集团股份有限公司 | Device for extracting yellow phosphorus via reduced pressure distillation of phosphorus sludge |
| CN203653251U (en) * | 2013-11-18 | 2014-06-18 | 瓮福（集团）有限责任公司 | High-purity yellow phosphorus production device |
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