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

Application of toluene diisocynate kettle residues, method for preparing graphite from toluene diisocynate kettle residues, graphite and application of graphite

A technology of toluene diisocyanate and kettle residues, which is applied in the field of chemical waste recycling and can solve the problem of low economic benefits and the like

Active Publication Date: 2020-05-22
北京诺芯环境科技有限公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the low economic benefit produced when dealing with toluene diisocyanate still residue in the prior art, thereby providing a kind of application of toluene diisocyanate still residue in the preparation of graphite

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of toluene diisocynate kettle residues, method for preparing graphite from toluene diisocynate kettle residues, graphite and application of graphite
  • Application of toluene diisocynate kettle residues, method for preparing graphite from toluene diisocynate kettle residues, graphite and application of graphite
  • Application of toluene diisocynate kettle residues, method for preparing graphite from toluene diisocynate kettle residues, graphite and application of graphite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put the still residue formed when toluene diisocyanate is synthesized by liquid phase phosgenation into a horizontal microwave pyrolysis furnace, close the furnace door, pass nitrogen and exhaust oxygen, and after reaching the anaerobic condition, open the microwave pyrolysis furnace and wait for microwave When the temperature in the pyrolysis furnace reaches 650°C, continue the normal operation of the microwave pyrolysis furnace for 3 seconds and collect the gas obtained at the same time, then close the microwave pyrolysis furnace, and when the temperature in the pyrolysis furnace drops to 200°C, open the furnace door and take out the black Product A.

Embodiment 2

[0031] Put the still residue formed when toluene diisocyanate is synthesized by liquid phase phosgenation into a vertical microwave pyrolysis furnace, close the furnace door, pass nitrogen and exhaust oxygen, and after reaching the anaerobic condition, open the microwave pyrolysis furnace and wait for microwave When the temperature in the pyrolysis furnace reaches 500°C, continue the normal operation of the microwave pyrolysis furnace for 7 seconds and collect the gas obtained at the same time, then close the microwave pyrolysis furnace, and when the temperature in the pyrolysis furnace drops to 200°C, open the furnace door and take out the black Product B.

Embodiment 3

[0033] Put the still residue formed when toluene diisocyanate is synthesized by liquid phase phosgenation into a vertical microwave pyrolysis furnace, close the furnace door, pass nitrogen and exhaust oxygen, and after reaching the anaerobic condition, open the microwave pyrolysis furnace and wait for microwave When the temperature in the pyrolysis furnace reaches 800°C, continue the normal operation of the microwave pyrolysis furnace for 3 seconds and collect the gas obtained at the same time, then close the microwave pyrolysis furnace, and when the temperature in the pyrolysis furnace drops to 150°C, open the furnace door and take out the black Product C.

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 application of toluene diisocynate kettle residues, a method for preparing graphite from the toluene diisocynate kettle residues, the graphite and application of the graphite,particularly to application of the toluene diisocynate kettle residues in preparation of graphite. The method for preparing the graphite from the toluene diisocynate kettle residues comprises the following steps: raising a temperature to 500-2000 DEG C in an anaerobic environment, and carrying out microwave cracking on the toluene diisocynate kettle residues so as to obtain a graphite-containingproduct. As microwave cracking is conducted on the toluene diisocynate kettle residues under an anaerobic condition, the graphite-containing product is obtained. The method for treating the toluene diisocynate kettle residues is simple and convenient to operate, can generate graphite, and has high economic benefits.

Description

technical field [0001] The invention relates to the technical field of chemical waste recycling, in particular to an application of toluene diisocyanate still residue, a method for preparing graphite, graphite and an application thereof. Background technique [0002] Toluene diisocyanate (TDI) has become one of the most widely used varieties of isocyanate compounds because of its excellent performance and wide range of uses. In recent years, with the development of the polyurethane industry, the demand for TDI has also increased significantly, and the domestic growth rate has been 7% in recent years. According to the forecast of relevant units, the global consumption demand for TDI will grow at an annual rate of 4 in the next 10 years. % growth rate. Both the international and domestic TDI markets have great room for development. [0003] There are three production methods of toluene diisocyanate: phosgenation method, nitro compound carbonylation method and dimethyl carbon...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/205
CPCC01B32/205
Inventor 刘俊祥孔庆锋刘强曹春峰
Owner 北京诺芯环境科技有限公司
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