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

Hydrogen fluoride adsorbent as well as preparation method and application thereof

A hydrogen fluoride and adsorbent technology, applied in the field of hydrogen fluoride adsorbent and its preparation, can solve the problems of increasing the usage of fresh water in enterprises and being uneconomical

Pending Publication Date: 2022-01-04
JIANGSU XINTAI MATERIALS TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such treatment will increase the amount of fresh water used in the enterprise. On the other hand, it is not cost-effective to use high-value hydrogen fluoride to prepare low-value fluoride salts.

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
  • Hydrogen fluoride adsorbent as well as preparation method and application thereof
  • Hydrogen fluoride adsorbent as well as preparation method and application thereof
  • Hydrogen fluoride adsorbent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0031] Weigh 25kg of polyacrylonitrile, 12.5kg of sodium fluoride, and 12.5kg of potassium fluoride, mix them evenly, take them out and use a mortar to crush them into powders of about 80 meshes, extrude them with an extruder, and cut them into Φ4mm-6mm lengths. 6mm ~ 8mm particles, put into the tube furnace for pre-oxidation and carbonization.

[0032] Adsorbent preparation example 2

[0033] Weigh 25kg of polyacrylonitrile, 12.5kg of sodium fluoride, and 12.5kg of potassium bifluoride, mix them evenly, take them out and use a mortar to crush them into powders of about 80 meshes, extrude them with an extruder, and cut them into Φ4mm-6mm lengths. 6mm ~ 8mm particles, put into the tube furnace for pre-oxidation and carbonization.

[0034] Adsorbent Adsorption Application Example 1

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 hydrogen fluoride adsorbent, which comprises the following raw materials: polyacrylonitrile, and one or more of alkali metal fluoride, alkaline earth metal fluoride and alkali metal fluorine-hydrogen compound. The invention also discloses a preparation method and application of the hydrogen fluoride adsorbent. The treatment mode of hydrogen fluoride in the lithium hexafluorophosphate production process is improved through the novel adsorbent, hydrogen fluoride in waste gas is recycled as much as possible and used for upstream section production, energy is saved, cost is reduced, and benefits are improved.

Description

technical field [0001] The invention relates to the technical field of hydrogen fluoride adsorbent, in particular to a hydrogen fluoride adsorbent and its preparation method and application. Background technique [0002] As a basic fluorine chemical product, hydrogen fluoride is widely used in the production of refrigerants, fluorine resins, fluoride salts, fluorine-containing intermediates and fine chemicals. In order to obtain a better fluorination effect, an excess of hydrogen fluoride is generally used. Due to the strong corrosiveness of hydrogen fluoride, its existence affects the quality of products, so hydrogen fluoride must be treated in fluorine chemical industry. Therefore, it has become an important measure to save fluorspar resources and improve the environment to deal with hydrogen fluoride in fluorine chemical industry and waste gas and to reuse it. [0003] At present, the conventional treatment methods are absorption method, membrane separation method, adso...

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): B01J20/20B01J20/30C02F1/28C02F101/14
CPCB01J20/20B01J20/046C02F1/283C02F1/281C02F2101/14
Inventor 王开涛施舜文盛晓东姚强
Owner JIANGSU XINTAI MATERIALS TECH CO LTD
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