Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of phosphorus oxychloride

A technology of phosphorus oxychloride and secondary reaction kettle, which is applied in the field of phosphorus oxychloride preparation, can solve the problems of high equipment requirements and fast reaction speed, and achieve the effects of good product quality, complete reaction and reasonable process route

Inactive Publication Date: 2013-02-06
郑修余
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a fast reaction speed, but requires high equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0010] The reactors used in the preparation method are three reactors, one of which is the main reactor, and the rest are secondary reactors and secondary reactors. When the main reactor is turned over, the secondary reactor is turned into the main reactor. The secondary reactor is turned into the secondary reactor.

[0011] Ingredients ratio (PCL3:O2): 1:0.13.

[0012] The reaction temperature is 67°C-90°C, and the pressure is 100mmHg-150mmHg.

[0013] Described solvent is phosphorus trichloride.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a chemical raw material, in particular to a preparation method of phosphorus oxychloride, which belongs to the technical field of chemical industry. In the method, three reaction kettles are used as reaction containers, wherein one reaction kettle is a main reaction kettle and the other two reaction kettles are a sub reaction kettle and a secondary reaction kettle; after materials in the main reaction kettle are completely reacted and collected, materials in the sub reaction kettle are transferred into the main reaction kettle, materials in the secondary reaction kettle are transferred into the sub reaction kettle, and phosphorus trichloride is pumped into the secondary reaction kettle. After the reaction is finished, reactants are distilled in an efficient packing tower, so as to obtain a phosphorus oxychloride product.

Description

technical field [0001] The invention relates to a chemical raw material, in particular to a preparation method of phosphorus oxychloride, which belongs to the technical field of chemical industry. Background technique [0002] Phosphorus oxychloride can be used as a chlorination agent and a catalyst for organic synthesis in the chemical industry. It has a wide range of uses. It is one of the main raw materials for organic phosphate products. It is mainly used in pesticides, pharmaceuticals, dye intermediates, and semiconductor doping sources. And optical fiber materials and other industries have a wide range of applications. In recent years, my country's pesticide industry has developed rapidly. Among these pesticides, there are many varieties that use phosphorus oxychloride, such as alachlor, acetochlor, pretilachlor, butachlor, promethachlor, clochlor, Amide herbicides such as oxachlor, isobutachlor, acetochlor, and butachlor have wide application prospects, and are also u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01B25/10
Inventor 郑修余
Owner 郑修余
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com