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

Novel molecular sieve as well as preparation method and application thereof

A molecular sieve, a new type of technology, applied in the field of purification, can solve problems such as the inability to effectively remove hydrogen fluoride

Inactive Publication Date: 2017-11-07
河北中蓝华腾新能源材料有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing silicate molecular sieves and aluminosilicate molecular sieves cannot effectively remove hydrogen fluoride in fluids.

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
  • Novel molecular sieve as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] Specifically, the preparation method of the novel molecular sieve includes the following steps: use 6×10 1 ~6×10 6 The ratio of gram of ordinary molecular sieve, the silicate solution and ordinary molecular sieve are added to the same reaction vessel (for example: round bottom flask), stirred, heated and kept at 10-100 ° C, and then gradually drop hydrochloric acid into the reaction vessel until If the pH value of the liquid in the reaction vessel is ≤7, take out the crystals in the reaction vessel, wash the crystals with deionized water, and then dry them at 100-800°C for 4 hours to obtain The above-mentioned novel molecular sieve. In practical applications, the silicate is preferably configured as a silicate solution with a concentration of 0.4 to 0.6 mol / L and then added to the same reaction vessel with ordinary molecular sieves, and the hydrochloric acid is preferably used at a concentration of 1 mol / L. L of hydrochloric acid.

[0018] Further, as figure 1 As sh...

Embodiment 1

[0022] A kind of novel molecular sieve, its preparation method comprises the following steps: 200ml concentration is that 0.4mol / L silicate solution is poured in the round bottom flask, then the 3A type molecular sieve of 10g is also added in this round bottom flask, stirring, heating and keep at 60°C, then gradually drop into the round-bottomed flask a concentration of 1mol / L hydrochloric acid until the pH value of the liquid in the round-bottomed flask=3, then take out the crystals in the round-bottomed flask, and remove The crystals are washed with ionized water, and then dried at 400°C for 4 hours to obtain a clean and dry new molecular sieve.

Embodiment 2

[0024] A kind of novel molecular sieve, its preparation method comprises the following steps: 200ml concentration is that 0.5mol / L silicate solution is poured in the round bottom flask, then the 4A type molecular sieve of 10g is also added in this round bottom flask, stirring, heating and keep at 60°C, then gradually drop into the round-bottomed flask a concentration of 1mol / L hydrochloric acid until the pH value of the liquid in the round-bottomed flask=3, then take out the crystals in the round-bottomed flask, and remove The crystals are washed with ionized water, and then dried at 400°C for 4 hours to obtain a clean and dry new molecular sieve.

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 novel molecular sieve as well as a preparation method and an application thereof. The novel molecular sieve is obtained by coating the surfaces of ordinary molecular sieves with silicon dioxide, wherein the mass percentage of silicon dioxide in the novel molecular sieve is 0.001%-50%. The preparation method of the novel molecular sieve comprises steps as follows: a silicate solution and the ordinary molecular sieves are added to the same reaction container in the ratio of silicate to the ordinary molecular sieves being 1 mol: (6*10<1>-6*10<6> g), stirred, heated and kept at the temperature of 10-100 DEG C, hydrochloric acid is gradually dropwise added to the reaction container until the pH value of a liquid in the reaction container is smaller than or equal to 7, crystal substances in the reaction container are taken out, washed and dried, and the novel molecular sieve can be prepared. Water and hydrogen fluoride in a fluid can be removed simultaneously, the preparation method is simple and the removal effect is good.

Description

technical field [0001] The invention relates to the technical field of purification, in particular to a novel molecular sieve and its preparation method and application. Background technique [0002] At present, the commonly used molecular sieves are mainly silicate molecular sieves (that is, silicates in the crystalline state) and aluminosilicate molecular sieves (that is, aluminosilicate in the crystalline state). Bonds are connected to form a molecular-sized pore and cavity system, which has the ability to sieve molecules. These molecular sieves have been widely used in the field of purification technology, and have the characteristics of easy operation and economical applicability. According to different pore sizes, molecular sieves can adsorb substances with different molecular volumes, for example: 3A molecular sieves can remove water and small molecule ethers and alcohols. However, the existing silicate molecular sieves and aluminosilicate molecular sieves cannot ef...

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): B01J20/18B01J20/30B01D53/02B01D15/00
Inventor 杨光廖红英孟蓉王倩郝志强赵季飞王磊李洪雨
Owner 河北中蓝华腾新能源材料有限公司
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