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

Preparation method of molecular sieve primary structural unit pillared magnesium saponite

A technology of structural units and molecular sieves, applied in chemical instruments and methods, non-metallic elements, inorganic chemistry, etc., can solve problems such as layered pore structure damage, and achieve high hydrothermal stability

Active Publication Date: 2012-10-31
PETROCHINA CO LTD +2
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods use soapstone or clay as raw materials to further prepare microporous or mesoporous molecular sieves, and the layered pore structure of the raw materials has been destroyed.

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
  • Preparation method of molecular sieve primary structural unit pillared magnesium saponite
  • Preparation method of molecular sieve primary structural unit pillared magnesium saponite
  • Preparation method of molecular sieve primary structural unit pillared magnesium saponite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a preparation method of magnesium saponite supported by the primary structural unit of ZSM-5 molecular sieve, which comprises the following steps:

[0031] Intercalation reaction: Disperse 5g of stesterite into 100ml of deionized water, then add 15g of cetyltrimethylammonium bromide, react in a water bath at 60°C for 10h, then add 30g of tetrabutylammonium hydroxide, Stir at 80°C for 24 hours to prepare solution A;

[0032] Preparation of pillared soapstone: 5.21gAl 2 (SO 4 ) 3 Soluble in 60g water and 5.88g H 2 SO 4 (concentrated sulfuric acid, the concentration is 98wt%), make a solution, then add 70g of silica sol and 20g of water, stir for 2h to make gel B; mix gel B with solution A, stir at 50°C for 15h , and finally crystallized at 90°C for 8 hours to obtain stesterite with pillared primary structural unit of ZSM-5 molecular sieve, and its XRD pattern is as follows figure 1 shown.

Embodiment 2

[0034] This embodiment provides a preparation method of magnesium saponite supported by the primary structural unit of ZSM-5 molecular sieve, which comprises the following steps:

[0035] Intercalation reaction: Disperse 5g of magnesium saponite into 100ml of deionized water, then add 10g of tetraethylammonium chloride, react in a water bath at 80°C for 5h, then add 20g of triethylamine, and stir at 40°C for 20h , to make solution A;

[0036] Preparation of pillared soapstone: 5.21gAl 2 (SO 4 ) 3 Soluble in 60g water and 5.88g H 2 SO 4 (concentrated sulfuric acid, the concentration is 98wt%), make a solution, then add 70g of silica sol and 20g of water, stir for 2h to make gel B; mix gel B with solution A, stir at 50°C for 15h , and finally crystallized at 90°C for 8 hours to obtain stesterite with pillared primary structural unit of ZSM-5 molecular sieve, and its XRD pattern is as follows figure 1 shown.

Embodiment 3

[0038] This embodiment provides a preparation method of magnesium saponite supported by the primary structural unit of ZSM-5 molecular sieve, which comprises the following steps:

[0039] Intercalation reaction: Disperse 5g of magnesium saponite into 100ml of deionized water, then add 20g of tetraethylammonium chloride and dihexadecyldimethylammonium bromide, react in a water bath at 70°C for 9h, and then add Add 20g of diethanolamine and stir at 60°C for 12h to prepare solution A;

[0040] Preparation of pillared soapstone: 5.21gAl 2 (SO 4 ) 3 Soluble in 60g water and 5.88g H 2 SO 4 (concentrated sulfuric acid, the concentration is 98wt%), make a solution, then add 70g of silica sol and 20g of water, stir for 2h to make gel B; mix gel B with solution A, stir at 50°C for 15h , and finally crystallized at 100°C for 12 hours to obtain the magnesium saponite supported by the primary structural unit of ZSM-5 molecular sieve, and its XRD pattern is as follows figure 1 shown. ...

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
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of molecular sieve primary structural unit pillared magnesium saponite. The preparation method comprises the following steps of: dispersing magnesium saponite in deionized water, adding a surfactant, heating to 30-90 DEG C for reaction for 1-26hours, then adding a template agent for synthesizing a ZSM-5 molecular sieve, and stirring for 1-26hours at 40-100 DEG C to obtain a mixed solution; and adding gel for synthesizing the ZSM-5 molecular sieve in the mixed solution, stirring for 2-30hours at 0-80 DEG C, and conducting crystallization treatment at 80-200 DEG C to obtain the molecular sieve primary structural unit pillared magnesium saponite. The preparation method provided by the invention takes a primary structural unit of the ZSM-5 molecular sieve as a pillar for pillaring the magnesium saponite, and the prepared pillared magnesium saponite has higher hydrothermal stability.

Description

technical field [0001] The invention relates to a preparation method of pillared saponite, in particular to a preparation method of pillared magnesium saponite, a molecular sieve primary structural unit, and belongs to the technical field of preparation of saponite materials. Background technique [0002] Soapstone is a three-octahedral clay mineral, and its structural formula can be written as M n+ (x-y)n (Si 8-x Al x )(Mg 6-y R y ), R is ion Al 3+ or Fe 3+ . Soapstone has a two-dimensional layered silicate structure, and its single layer is generally composed of T-O-T layers, that is, a sandwich structure composed of two silicon-oxygen tetrahedral layers sandwiching an aluminum-oxygen octahedron in the middle, and the octahedral layers are composed of 6 magnesium Atoms are filled, and the center of the silicon-oxygen tetrahedron is replaced by atoms such as Al to form a layer charge. The interlayers of such layered column materials generally have exchangeable cati...

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): C01B33/40
Inventor 张强崔秋凯李春义杨文慧徐少军山红红杨朝合常新华李凤义
Owner PETROCHINA 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