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

Organic silicon micro-pore zeolite, synthesizing method and its application

A technology of microporous zeolite and synthesis method, applied in the directions of crystalline aluminosilicate zeolite, organic chemistry, chemical instruments and methods, etc., to achieve the effect of good technical effect

Active Publication Date: 2008-02-13
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The framework structure of the above-mentioned crystalline zeolite is all based on inorganic silica and inorganic alumina as basic elements, and the zeolite containing organic silicon in the framework structure and its synthetic method have not been reported.

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

[0024] Sodium aluminate (Al 2 o 3 42.0% by weight) 6.1 grams are dissolved in 288 grams of water, add 1.0 grams of sodium hydroxide to make it dissolve, then add 34.0 grams of hexahydropyridine under stirring, then add 60 grams of solid silicon oxide, and 5.5 grams of trimethylchlorosilane , the material ratio (molar ratio) of reactant is:

[0025] SiO 2 / Al 2 o 3 =40

[0026] NaOH / SiO 2 =0.025

[0027] Chlorotrimethylsilane / SiO 2 =0.05,

[0028] Hexahydropyridine / SiO 2 =0.50

[0029] h 2 O / SiO 2 =16

[0030] After the reaction mixture was evenly stirred, it was put into a stainless steel reaction kettle, and crystallized at 135° C. for 50 hours while stirring. After taking out, it is filtered, washed and dried. SiO was obtained by chemical analysis 2 / Al 2 o 3 The molar ratio was 42.1.

[0031] After drying the sample was determined, its Si29 The NMR solid-state nuclear magnetic spectrum peak appears at 15.1ppm. Its X-ray diffraction data are shown in Tabl...

Embodiment 2

[0035] Sodium aluminate (Al 2 o 3 42.0% by weight) 8.0 grams are dissolved in 360 grams of water, add 4.0 grams of sodium hydroxide to make it dissolve, then add 34.0 grams of hexahydropyridine under the situation of stirring, then add 150 grams of silica sol (silicon oxide content 40% by weight), Dimethyldichlorosilane 3.9 grams, the material ratio (mol ratio) of reactant is:

[0036] SiO 2 / Al 2 o 3 =30

[0037] NaOH / SiO 2 =0.05

[0038] Dimethyldichlorosilane / SiO 2 =0.03,

[0039] Hexahydropyridine / SiO 2 =0.40

[0040] h 2 O / SiO 2 =20

[0041] After the reaction mixture was stirred evenly, it was put into a stainless steel reaction kettle, and crystallized at 150° C. for 55 hours while stirring. After taking out, it is filtered, washed and dried. SiO was obtained by chemical analysis 2 / Al 2 o 3 The molar ratio was 28.6.

[0042] After drying the sample was determined, its Si 29 NMR solid-state nuclear magnetic spectrum peaks appear at 5.7ppm and -16.4p...

Embodiment 3

[0046] Dissolve 3.0 grams of aluminum oxide in 450 grams of water, add 16.0 grams of sodium hydroxide to dissolve it, then add 34.7 grams of hexamethyleneimine while stirring, then add 60 grams of solid silicon oxide, dimethyldiethyl Oxygensilane 5.9 grams, the material ratio (mol ratio) of reactant is:

[0047] SiO 2 / Al 2 o 3 =30

[0048] NaOH / SiO 2 =0.2

[0049] Dimethyldiethoxysilane / SiO 2 =0.04,

[0050] Hexamethyleneimine / SiO 2 =0.35

[0051] h 2 O / SiO 2 =25

[0052] After the reaction mixture was stirred evenly, it was put into a stainless steel reaction kettle, and crystallized at 145° C. for 70 hours while stirring. After taking out, it is filtered, washed and dried. SiO was obtained by chemical analysis 2 / Al 2 o 3 The molar ratio was 30.1.

[0053] After drying the sample was determined, its Si 29 NMR solid-state nuclear magnetic spectrum peaks appeared at 5.8ppm and -15.9ppm. Its X-ray diffraction data are shown in Table 3.

[0054] table 3

[...

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 present invention relates to a silicone microporous zeolite and the synthesis method and application of the silicone microporous zeolite, used to used to solve the problem that a frame structure of the microporous zeolite synthesized by the prior technology does not contain the silicone. The present invention contains the following mol relation: in the formula of (1 / n) Al2O3: SiO2: (m / n) R, n is equal to 5-250 and m is equal to 0.01-50. R is an alkyl, an alkane alkenyl or a phenyl. A solid nuclear magnetic map of Si29NMR is between -80ppm and +50ppm and includes at least one nuclear magnetic resonance spectral peak of Si29. A diffraction pattern of x-ray has a d-spacing maximum at the position of 12.4 plus or minus 0.2, 11.0 plus or minus 0.3, 9.3 plus or minus 0.3, 6.8 plus or minus 0.2, 6.1 plus or minus 0.2, 5.5 plus or minus 0.2, 4.4 plus or minus 0.2, 4.0 plus or minus 0.2 angstrom and 3.4 plus or minus 0.1 angstrom. The technic proposal solves the problem well. The microporous zeolite can serve as a sorbent or an activator component used in the transformation of the organic compounds.

Description

technical field [0001] The invention relates to an organosilicon microporous zeolite, a synthesis method and an application thereof. Background technique [0002] In industry, porous inorganic materials are widely used as catalysts and catalyst supports. Porous materials have relatively high specific surface area and smooth pore structure, so they are good catalytic materials or catalyst supports. Porous materials generally include: amorphous porous materials, crystalline molecular sieves, and modified layered substances. [0003] The basic framework structure of crystalline microporous zeolites is based on the rigid three-dimensional TO 4 (SiO 4 , AlO 4 etc.) unit structure; in this structure TO 4 Oxygen atoms are shared in a tetrahedral manner, and the skeleton tetrahedron such as AlO 4 The charge balance of is through surface cations such as Na + , H + existence is maintained. It can be seen that the framework properties of zeolite can be changed by cation exchan...

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): C01B39/02C01B39/46B01J29/04B01J20/18
CPCB01J20/18C07C2/66C01B39/48C01B39/04B01J29/70C07C15/107B01J29/06
Inventor 高焕新周斌魏一伦
Owner CHINA PETROLEUM & CHEM CORP