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Fe-ECR-1 zeolite as well as preparation method and application thereof

A fe-ecr-1, zeolite technology, applied in chemical instruments and methods, catalyst activation/preparation, crystalline aluminosilicate zeolite, etc., can solve the problems of long synthesis process cycle, large pollution and high cost, and achieve improved synthesis Efficiency, less waste liquid pollution, and the effect of improving productivity

Pending Publication Date: 2021-09-03
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of long ECR-1 zeolite synthesis process cycle, large pollution and high cost in the prior art, a Fe-ECR-1 zeolite and its preparation method and application are provided

Method used

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  • Fe-ECR-1 zeolite as well as preparation method and application thereof
  • Fe-ECR-1 zeolite as well as preparation method and application thereof
  • Fe-ECR-1 zeolite as well as preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0032] A preparation method for Fe-ECR-1 zeolite, comprising the steps of:

[0033] Put 2.7g of silicic acid and 0.073g of anhydrous ferric chloride in 1.0g of water, adjust the pH of the solution to 1 to become an acidic aqueous solution, hydrolyze it at room temperature for 20 hours to form an iron-silicon treatment solution, and add 0.082g of NaAlO to the iron-silicon treatment solution 2 and 3mL of 20M sodium hydroxide concentrated solution to make the mixed solution alkaline, after aging for 24 hours under alkaline conditions, put the above materials in the reaction kettle, crystallize at 150°C for 5 days, cool to room temperature, and extract the product Filter and dry at 80°C to obtain Fe-ECR-1 zeolite.

[0034] The reaction raw material molar ratio of present embodiment is 1Si:0.025Al:0.01Fe:4H 2 O.

[0035] The obtained Fe-ECR-1 zeolite product is carried out X-ray diffraction, and the XRD figure is as follows figure 1 As shown in a, by figure 1 It can be seen tha...

Embodiment 2

[0039] A preparation method for Fe-ECR-1 zeolite, comprising the steps of:

[0040] Put 2.7g of silicic acid and 0.073g of anhydrous ferric chloride in 1.0g of water, adjust the pH of the solution to 1 to become an acidic aqueous solution, hydrolyze it at room temperature for 20 hours to form an iron-silicon treatment solution, and add 0.111g of NaAlO to the iron-silicon treatment solution 2 and 3.5mL of 20M sodium hydroxide concentrated solution to make the mixed solution alkaline, after aging for 24 hours under alkaline conditions, put the above materials in the reaction kettle, crystallize at 150°C for 5 days, cool to room temperature, and extract the product Filter and dry at 80°C to obtain Fe-ECR-1 zeolite.

[0041] The reaction raw material molar ratio of present embodiment is 1Si:0.034Al:0.01Fe:4.4H 2 O.

Embodiment 3

[0043] A preparation method for Fe-ECR-1 zeolite, comprising the steps of:

[0044] Put 2.7g of silicic acid and 0.073g of anhydrous ferric chloride in 1.0g of water, adjust the pH of the solution to 1 to become an acidic aqueous solution, hydrolyze it at room temperature for 20 hours to form an iron-silicon treatment solution, and add 0.164g of NaAlO to the iron-silicon treatment solution 2 and 4mL of 20M sodium hydroxide concentrated solution to make the mixture alkaline, after aging for 24 hours under alkaline conditions, put the above material in the reaction kettle, crystallize at 150°C for 5 days, and after cooling to room temperature, filter the product with suction , and dried at 80°C to obtain Fe-ECR-1 zeolite.

[0045] The reaction raw material molar ratio of present embodiment is 1Si:0.05Al:0.01Fe:4.8H 2 O.

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Abstract

The invention relates to Fe-ECR-1 zeolite as well as a preparation method and application thereof, and belongs to the technical field of zeolite synthesis. The method is characterized by preparing Fe-ECR-1 zeolite from a concentrated solution system which does not contain a template agent and has a water-silicon ratio of H2O / Si not greater than 5; and the synthesis yield is high, the water consumption is low, the waste liquid pollution is low, and the method is green and environment-friendly. After the obtained ECR-1 zeolite is converted into the corresponding ion exchange type Fe-ECR-1 zeolite, the obtained Fe-ECR-1 zeolite has very good catalytic activity, can efficiently catalyze the Friedel-Crafts alkylation reaction of benzyl alcohol and benzene, and has important significance in the field of actual chemical production.

Description

technical field [0001] The invention relates to the technical field of zeolite synthesis, in particular to an Fe-ECR-1 zeolite and a preparation method and application thereof. Background technique [0002] As a typical microporous material, zeolite has rich pore structure, regular pore distribution, high hydrothermal stability and strong acid center. It is widely used in the fields of gas separation and storage, heterogeneous catalysis, sensors and drug delivery. It has a wide range of applications and has created immeasurable value for social development. ECR-1 zeolite molecular sieve is a zeolite with twelve-membered ring skeleton structure. At present, the method for synthesizing ECR-1 zeolite mainly contains: (1) use dihydroxyethyl dimethyl ammonium chloride to synthesize ECR-1 as organic template; Yet, the use of organic template not only causes the price of catalyst to rise, and The process of removing the organic template agent by high-temperature roasting will gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/02B01J29/76B01J37/30C07C2/86C07C15/16
CPCC01B39/02C01B39/026B01J29/76B01J37/30C07C2/864C07C2529/76B01J2229/183C01P2002/72C01P2004/03C01P2006/12C07C15/16Y02P20/52
Inventor 黄荣薛浩南陈正玲于海燕张微
Owner CHANGZHOU INST OF TECH
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