Method for generating regenerated diaphragm through extracting PVDF from waste diaphragms

A technology for regenerating membranes and membranes, applied in the field of organic solid waste recycling, can solve problems such as secondary pollution of the environment, and achieve the effects of reducing pollution, reducing production costs and realizing reuse.

Active Publication Date: 2015-10-07
江苏沛尔膜业股份有限公司
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is not properly disposed of, it will inevitably

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

[0012] 1. Clean the waste film

[0013] Put 20 pieces of 1.0㎡ waste membrane elements into the ultrasonic cleaning machine, add water to 2 / 3 of the cleaning machine, then add 300ml of hydrochloric acid, 2000ml of citric acid, then add water until full, turn on the ultrasonic cleaning machine for 2 hours, and take out the membrane elements Check whether it is clean (the surface of the membrane is white, if there is no attachment, it is clean)

[0014] 2. Cutting

[0015] Cut the membrane on the cleaned membrane element into small pieces (on the cutting table). Function: facilitate dissolution and centrifugation.

[0016] 3. Drying

[0017] The small pieces of membranes were dried in an oven.

[0018] 4. Dissolve

[0019] Put the dry and clean small piece of membrane into the dissolution kettle, then add 30 liters of NMP, adjust the temperature of the dissolution kettle to 70°C, turn on the dissolution kettle, and rotate it at a low speed for 2-3 hours.

[00...

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

PropertyMeasurementUnit
Average pore sizeaaaaaaaaaa
Maximum apertureaaaaaaaaaa
Login to view more

Abstract

A method for generating a regenerated diaphragm through extracting PVDF from waste diaphragms is characterized in that the waste diaphragms are cleaned and dissolved as a raw material to form a diaphragm casting solution. The recycling rate is high and reaches 98%; the diaphragm can be repeatedly used, so the production cost is greatly reduced, and industrialization becomes possible; and the PVDF recovery effect is good, the PVDF pollution is greatly reduced, the production environment is good, and clean production and sustainable development are realized.

Description

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

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
Owner 江苏沛尔膜业股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap