Unlock instant, AI-driven research and patent intelligence for your innovation.

Hexaphenoxy cyclotriphosphazene production technology

A technology of hexaphenoxycyclotriphosphazene and hexachlorocyclotriphosphazene, which is applied in the field of production technology of hexaphenoxycyclotriphosphazene, can solve the problems that high polymer hinders the widening and development of application fields, etc. Achieve the effect of short production cycle, easy collection and environmental friendliness

Inactive Publication Date: 2015-09-30
NANTONG TAITONG CHEM TECH
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In real life, polymers are used to replace some metal materials in many fields due to their low price and excellent performance. However, the flammability of polymers hinders the expansion and development of its application fields.

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 1

[0011] Example 1: Add 580 kg of phosphorus pentachloride, 15 kg of ammonium chloride, 6 kg of magnesium chloride, and 30 kg of pyridine in the reactor to mix, then add 1000 kg of chlorobenzene and stir to raise the temperature to 30 ° C, reflux for 9 hours, and filter to remove excess all Describe ammonium chloride, magnesium chloride and by-products, then reclaim the chlorobenzene by decompression filtration, cool down to 10°C, and then filter to obtain hexachlorocyclotriphosphazene; put 750kg of chlorobenzene and 500kg of phenol into the reaction kettle, stir and dissolve Add 700 kg of 30% sodium hydroxide solution, stir for 25 minutes, heat up to remove moisture, add 40 kg of tetrabutylammonium bromide after dehydration is complete, stir and dissolve, then add 300 kg of hexachlorocyclotriphosphazene dropwise, and reflux reaction 16 hours, then the reaction solution was cooled to 70°C, 5% lye was added, stirred for 1 hour, and the water phase was separated; 5% sulfuric acid 1...

Embodiment 2

[0012] Example 2: Add 630kg of phosphorus pentachloride, 17kg of ammonium chloride, 6kg of magnesium chloride, and 30kg of pyridine in the reactor to mix, then add 1000kg of chlorobenzene and stir to raise the temperature to 35°C, reflux for 10 hours, and filter to remove excess all Describe ammonium chloride, magnesium chloride and by-products, then reclaim the chlorobenzene by vacuum filtration, cool down to 15°C, and then filter to obtain hexachlorocyclotriphosphazene; put 780kg of chlorobenzene and 500kg of phenol into the reactor, stir and dissolve Add 700 kg of 30% sodium hydroxide solution, stir for 30 minutes, heat up to remove moisture, add 40 kg of tetrabutylammonium bromide after dehydration is complete, stir and dissolve, then add 300 kg of hexachlorocyclotriphosphazene dropwise, and reflux reaction After 17 hours, the reaction solution was cooled to 75°C, 5% lye was added, stirred for 1.5 hours, and the water phase was separated; 5% sulfuric acid 1500kg was added t...

Embodiment 3

[0013] Example 3: Add 650kg of phosphorus pentachloride, 20kg of ammonium chloride, 6kg of magnesium chloride, and 30kg of pyridine in the reaction kettle to mix, then add 1000kg of chlorobenzene and stir to raise the temperature to 40°C, reflux for 11 hours, and filter to remove excess all Describe ammonium chloride, magnesium chloride and by-products, then reclaim the chlorobenzene by vacuum filtration, cool down to 10°C, and then filter to obtain hexachlorocyclotriphosphazene; put 800kg of chlorobenzene and 500kg of phenol into the reaction kettle, stir and dissolve Add 700 kg of 30% sodium hydroxide solution, stir for 35 minutes, heat up to remove moisture, add 40 kg of tetrabutylammonium bromide after dehydration is complete, stir and dissolve, then add 300 kg of hexachlorocyclotriphosphazene dropwise, and reflux reaction 18 hours, then the reaction solution was cooled to 80°C, 5% lye was added, stirred for 2 hours, and the water phase was separated; 5% sulfuric acid 1500k...

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 discloses a hexaphenoxy cyclotriphosphazene production technology. The hexaphenoxy cyclotriphosphazene production technology comprises the specific steps that phosphonitrilic chloride trimer is prepared, wherein phosphorus pentachloride, ammonium chloride, magnesium chloride, pyridine and chlorobenzene are input in a reaction still according to a certain ratio and are stirred and heated to 30-40 DEG C, a backflow reaction is carried out, filtering is carried out, and the phosphonitrilic chloride trimer is obtained; synthesis is carried out, wherein chlorobenzene and phenol are input in the reaction still, and are stirred and dissolved, a sodium hydroxide solution is added in the reaction still, stirring is carried out for 25-35 min, the mixture is heated to be dewatered, then tetrabutylammonium bromide is added in the completely dewatered mixture, the phosphonitrilic chloride trimer is dropwise added after the mixture is stirred and dissolved, the backflow reaction is carried out for 16-18 h, then reaction liquid is cooled to be at 70-80 DEG C, 5% alkali liquor is added, stirring is carried out for 1-2 h, and water phases are separated and removed; organic phases are repeatedly washed and dewatered, and the product hexaphenoxy cyclotriphosphazene is obtained. The hexaphenoxy cyclotriphosphazene production technology is simple and can be achieved at the moderate and low temperature environments, the production period is short, secondary products are easy to collect, the chlorobenzene solvent can be recycled, the cost is saved, and the hexaphenoxy cyclotriphosphazene production technology is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of polymer modified flame retardant, in particular to a production process of hexaphenoxycyclotriphosphazene. Background technique [0002] In real life, high polymers are used to replace some metal materials in many fields due to their low price and excellent performance, but the widening and development of their application fields are hindered by the flammability of high polymers. Studies have shown that phosphazene compounds have good flame retardancy due to the substitution of halogen atoms in the molecular structure by organic groups, and a high content of P-N to form a synergistic system, and have excellent modification functions for polymer materials. Contents of the invention [0003] The purpose of the present invention is to provide a production process of hexaphenoxycyclotriphosphazene which follows the chemical principle and has a simple process but good effect. [0004] In order to achieve th...

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): C07F9/6593
Inventor 储晓建
Owner NANTONG TAITONG CHEM TECH