CN1887697A - Simple distillation process of purifying industrial P2S5 - Google Patents
Simple distillation process of purifying industrial P2S5 Download PDFInfo
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- CN1887697A CN1887697A CN 200610019731 CN200610019731A CN1887697A CN 1887697 A CN1887697 A CN 1887697A CN 200610019731 CN200610019731 CN 200610019731 CN 200610019731 A CN200610019731 A CN 200610019731A CN 1887697 A CN1887697 A CN 1887697A
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- Prior art keywords
- thiophosphoric anhydride
- product
- simple distillation
- still
- purifying industrial
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Abstract
The present invention discloses simple distillation process of purifying industrial P2O5. The P2O5 synthesizing product from reaction kettle is made to enter to the distilling still and heated electrically to the boiling point, 514 deg.c, of P2O5, so as to evaporate P2O5 continuously, and the vapor is made to pass through the condenser and condensed at 280 deg.c to form P2O5 product of 98 % purity. Into the distilling still, 1000 Pa pressure N2 is fed continuously to maintain inside pressure at 760 mmHg. The present invention has simple process to obtain P2O5 product of 98 % purity, and the product may be used in producing pesticide, lubricant and other products.
Description
Technical field
The present invention relates to a kind of purifying treatment method of industrial thiophosphoric anhydride, particularly a kind of method of simple distillation purifying industrial thiophosphoric anhydride.
Background technology
When domestic chemical industry directly is used as products production raw materials such as producing agricultural chemicals or lubricating oil additive with industrial thiophosphoric anhydride, do not carry out purifying treatment mostly, make the impurity in the industrial thiophosphoric anhydride cause adverse influence himself product purity and derived product quality.
Summary of the invention
The objective of the invention is to provide a kind of method of simple distillation purifying industrial thiophosphoric anhydride, it can solve the purifying problem of industrial thiophosphoric anhydride product, makes industrial thiophosphoric anhydride product purity bring up to 98% after the purification by 96% before purifying.
The object of the present invention is achieved like this: a kind of method of simple distillation purifying industrial thiophosphoric anhydride, the thiophosphoric anhydride synthetic product of autoreaction still in the future, electrically heated is to 514 ℃ of thiophosphoric anhydride boiling temperatures after entering still kettle in batches, thiophosphoric anhydride consecutive evaporation under the electric heating effect, its steam promptly obtains purity by condenser after 280 ℃ of following condensations be 98% thiophosphoric anhydride product, continuous input pressure is the nitrogen of 1000Pa in the still kettle, and the still internal pressure remains on 760mmHg.
The present invention is owing to adopt simple distillation purifying industrial thiophosphoric anhydride, so can make industrial thiophosphoric anhydride product purity reach 98%, when producing products production raw material such as agricultural chemicals or lubricating oil additive as chemical industry when it, can improve the derived product quality, satisfy the requirement that chemical industry is produced.
Embodiment
A kind of method of simple distillation purifying industrial thiophosphoric anhydride, the thiophosphoric anhydride synthetic product of autoreaction still in the future, electrically heated is to 514 ℃ of thiophosphoric anhydride boiling temperatures after entering still kettle in batches, thiophosphoric anhydride consecutive evaporation under the electric heating effect, its steam promptly obtains purity by condenser after 280 ℃ of following condensations be 98% thiophosphoric anhydride product, continuous input pressure is the nitrogen of 1000Pa in the still kettle, avoids air admission, and the still internal pressure remains on 760mmHg.The distillation residue major ingredient is vitreous state phosphoric acid salt, carbon and Iron sulfuret etc., is transported to outdoor incinerator and gives burning disposal.
Claims (2)
1, a kind of method of simple distillation purifying industrial thiophosphoric anhydride, it is characterized in that: the thiophosphoric anhydride synthetic product of autoreaction still in the future, electrically heated is to 514 ℃ of thiophosphoric anhydride boiling temperatures after entering still kettle in batches, thiophosphoric anhydride consecutive evaporation under the electric heating effect, its steam promptly obtains purity by condenser after 280 ℃ of following condensations be 98% thiophosphoric anhydride product.
2, the method for a kind of simple distillation purifying industrial thiophosphoric anhydride according to claim 1 is characterized in that: continuous input pressure is the nitrogen of 1000Pa in the still kettle, and the still internal pressure remains on 760mmHg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610019731 CN1887697A (en) | 2006-07-27 | 2006-07-27 | Simple distillation process of purifying industrial P2S5 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610019731 CN1887697A (en) | 2006-07-27 | 2006-07-27 | Simple distillation process of purifying industrial P2S5 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1887697A true CN1887697A (en) | 2007-01-03 |
Family
ID=37576976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610019731 Pending CN1887697A (en) | 2006-07-27 | 2006-07-27 | Simple distillation process of purifying industrial P2S5 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1887697A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015186055A1 (en) | 2014-06-02 | 2015-12-10 | Tubitak | Purification of phosphorus decasulfide (p4s10) |
| CN108704596A (en) * | 2018-08-15 | 2018-10-26 | 赵乾康 | Phosphorus pentasulfide environmental protection and energy saving processing technology and equipment |
| CN116374970A (en) * | 2023-03-08 | 2023-07-04 | 湖北吉星化工集团有限责任公司 | Purification process and device for preparing high-purity phosphorus pentasulfide |
-
2006
- 2006-07-27 CN CN 200610019731 patent/CN1887697A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015186055A1 (en) | 2014-06-02 | 2015-12-10 | Tubitak | Purification of phosphorus decasulfide (p4s10) |
| US9884764B2 (en) | 2014-06-02 | 2018-02-06 | Tubitak | Purification of phosphorus decasulfide (P4S10) |
| CN108704596A (en) * | 2018-08-15 | 2018-10-26 | 赵乾康 | Phosphorus pentasulfide environmental protection and energy saving processing technology and equipment |
| CN116374970A (en) * | 2023-03-08 | 2023-07-04 | 湖北吉星化工集团有限责任公司 | Purification process and device for preparing high-purity phosphorus pentasulfide |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |