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

A kind of bisphenol a sodium salt continuous feeding system and method

A feeding system and feeding method technology, applied in feeding devices, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of increasing production costs, unable to meet production load, and easily damaged chain disks.

Active Publication Date: 2022-08-02
LIAOCHENG LUXI POLYCARBONATE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors found that the above method is easy to damage the chain plate during the transportation of the pipe chain, which leads to the interruption of transportation and takes a long time for maintenance.
This kind of feeding method is not only inefficient and unable to meet the demand of production load, but also often leads to production shutdown due to the above-mentioned shortcomings of pipe chain transportation, which seriously increases production costs

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
  • A kind of bisphenol a sodium salt continuous feeding system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like figure 1 As shown, this embodiment provides a continuous feeding system of bisphenol A sodium salt, the system includes a bisphenol A feeding unit and a mixing unit, and the two are connected by a loss-in-weight scale 12 .

[0044] The bisphenol A feeding unit is a unit for transporting bisphenol A raw materials, including a bisphenol A pipeline transportation system 7, and the bisphenol A pipeline transportation system 7 is connected to a bisphenol A feed pipeline at the feed port, and the bisphenol A pipeline transportation system 7 is connected. The feeding pipeline is divided into bifurcations, which are respectively connected to the air storage tank 3 and the pneumatic butterfly valve 5 of the discharge port.

[0045] The discharge port pneumatic butterfly valve 5 cooperates with the hydraulic unloading platform 6, bisphenol A is placed on the hydraulic unloading platform 6, and the feeding amount of bisphenol A is controlled by the opening and closing of the ...

Embodiment 2

[0054] This embodiment provides a continuous feeding method of bisphenol A sodium salt, and the continuous feeding method of bisphenol A sodium salt is carried out in the continuous feeding system of bisphenol A sodium salt described in Example 1.

[0055] Open the regulating valve on the compressor bypass 1, confirm whether the valve is in good condition, start the compressor 28, the exhaust pressure of the compressor is 0.35MPa, open the regulating valve 2 of the gas storage tank, and fill the nitrogen gas through the gas storage tank 3. system. Open the blanking pneumatic butterfly valve 4 of the nitrogen pipeline, drive the tanker to the hydraulic unloading platform 6, connect the discharge port of the tanker with the receiving port of the pipeline system, open the pneumatic butterfly valve 5 of the blanking port, the material starts to blank, the conveying proceeds, and the maintenance The material level of the bisphenol A pipeline conveying system is 80%. . The rotary ...

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 the field of organic metal salt synthesis, mainly relates to the field of phosgene interface polycondensation to produce polycarbonate, and specifically provides a bisphenol A sodium salt continuous feeding system and method. The system includes a bisphenol A feeding unit and a mixing unit, and the two are connected by weight loss; the bisphenol A feeding unit includes a bisphenol A pipeline transportation system, and the bisphenol A pipeline transportation system is connected to the feeding port of the bisphenol A. A feeding pipeline, the bisphenol feeding pipeline is divided into fork roads, which are respectively connected to the air storage tank and the pneumatic butterfly valve of the feeding port, and the pneumatic butterfly valve of the feeding port is the feeding port of the bisphenol A raw material; the bisphenol A pipeline The lower part of the conveying system is sequentially connected with a bisphenol A intermediate hopper and a loss-in-weight scale. The mixing unit includes a prefabricated tank unit. The inlet of the prefabricated tank unit is connected to a weight-loss scale, a caustic soda pipeline, and a deoxygenated water pipeline. The outlet of the prefabricated tank unit is connected Connected with bisphenol A sodium salt feed tank. The system does not require pipe chain transportation, only air transportation is used.

Description

technical field [0001] The invention relates to the field of organic metal salt synthesis, mainly relates to the field of phosgene interface polycondensation to produce polycarbonate, and specifically provides a bisphenol A sodium salt continuous feeding system and method. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] With the development of polymer industry, polycarbonate produced by interfacial polycondensation of bisphenol A and phosgene, as one of the five general-purpose plastics, has excellent heat resistance, transparency, light resistance, weather resistance and mechanical strength. [0004] The phosgene method is a common process for the production of polycarbonate. The interfacial polycondensation method is one of the main methods of the phosgene method. The phosgene method to produce polycarbonate first reacts bisphenol A with sodium ...

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 Patents(China)
IPC IPC(8): B01J4/00C08G64/24
CPCB01J4/001B01J4/008C08G64/24
Inventor 孙彩虹姬生龙于立锋杨文芹张明华隋国恒刘吉栋
Owner LIAOCHENG LUXI POLYCARBONATE CO LTD