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In-situ synthetic method of geolyte containing copper wires

A technology of zeolite and copper wire, applied in the field of catalysis, can solve the problems of high preparation cost, cumbersome operation steps, affecting the commercial prospects of the catalyst and the like

Inactive Publication Date: 2014-09-03
SHANGHAI BI KE CLEAN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the preparation methods of copper-containing zeolites reported in the literature, the ion exchange method is a relatively commonly used method for preparing metal-loaded zeolite catalysts, but the method is cumbersome in operation steps and low in ion exchange efficiency, resulting in high preparation costs and serious impacts. The commercial prospects of this catalyst

Method used

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  • In-situ synthetic method of geolyte containing copper wires
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  • In-situ synthetic method of geolyte containing copper wires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Mole ratio Na 2 O:CuO:Al 2 o 3 :n-Butylamine:SiO 2 :H 2 O=2.9:0.4:1:3:18:380 ingredients. Take 135 milliliters of deionized water, add 2.6 grams of sodium hydroxide to it and mix well, then weigh 4.7 grams of sodium metaaluminate and add it to the above solution, stir for 0.5 hours, then weigh 4.3 grams of n-butylamine and add it to the solution , continue to stir for 0.5 hours to obtain solution A; then weigh 70 grams of silica sol (purchased from Qingdao Ocean Chemical Co., Ltd., SiO 2 Content: 30% by weight, average particle size 10-20 nanometers, pH value 8.5-10) was added into solution A, and continued stirring for 1.5 hours to obtain sol B. Then weigh 75ml Cu(NH 3 ) 4 SO 4 The solution (0.1mol / L) was added to sol B, and the pH of the system was measured as 13±0.1 using a pH meter. After stirring and aging at room temperature for 1 hour, it was transferred to a stainless steel reactor, and the reactor was sealed and heated to 180°C. Crystallize under hydro...

Embodiment 2

[0055] Mole ratio Na 2 O:CuO:Al 2 o 3 :Triethylamine:SiO 2 :H 2 O=2.9:0.35:1:3:18:360 ingredients. Take 128 milliliters of deionized water, add 2.6 grams of sodium hydroxide to it and mix well, then weigh 4.7 grams of sodium metaaluminate and add it to the above solution, stir for 0.5 hours, then weigh 6.0 grams of triethylamine and add it to the solution , continue to stir for 0.5 hours to obtain solution A; then weigh 70 grams of silica sol (purchased from Qingdao Ocean Chemical Co., Ltd., SiO 2 Content: 30% by weight, average particle size 10-20 nanometers, pH value 8.5-10) was added into solution A, and continued stirring for 1.5 hours to obtain sol B. Then weigh 65ml Cu(NH 3 ) 4 (NO 3 ) 2 ) solution (0.1mol / L) was added to sol B, and the pH of the system was measured to be 13±0.1 using a pH meter. After stirring and aging at room temperature for 1 hour, it was transferred into a stainless steel reaction kettle, and the reaction kettle was sealed and heated to 180...

Embodiment 3

[0057] Mole ratio Na 2 O:CuO:Al 2 o 3 :Tetraethylammonium bromide:SiO 2 :H 2 O=2.8:0.4:1:2.9:17:390 ingredients. Take 140 milliliters of deionized water, add 2.5 grams of sodium hydroxide to it and mix well, then weigh 5.0 grams of sodium metaaluminate and add it to the above solution, stir for 0.5 hours, then weigh 12.6 grams of tetraethylammonium bromide and add Into the solution, continue to stir for 0.5 hours to obtain solution A; then weigh 70 grams of silica sol (purchased from Qingdao Ocean Chemical Co., Ltd., SiO 2 Content: 30% by weight, average particle size 10-20 nanometers, pH value 8.5-10) was added into solution A, and continued stirring for 1.5 hours to obtain sol B. Then weigh 75ml Cu(NH 3 ) 4 (NO 3 ) 2 ) solution (0.1mol / L) was added to sol B, and the pH of the system was measured as 13±0.1 using a pH meter. After stirring and aging at room temperature for 1 hour, it was transferred to a stainless steel reactor, and the reactor was sealed and heated t...

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Abstract

The invention provides an in-situ synthetic method of geolyte containing copper wires. The method comprises the steps of mixing silicon sources, aluminum sources, organic template agents, copper sources and water to obtain raw material solutions; aging the raw material solutions and crystallizing under a hydrothermal condition; washing, drying and roasting to prepare the geolyte containing copper wires. The invention also provides the geolyte containing copper wires prepared by using the method and a method for synthesizing ethyl formate by means of dimethyl ether carbonylation by using the geolyte containing copper wires as a catalyst. The geolyte containing copper wires represents high activity and high product selectivity in reaction of dimethyl ether carbonylation synthesized methyl acetate.

Description

technical field [0001] The present invention generally relates to the field of catalysis. More specifically, the present invention provides a method for synthesizing copper-containing mordenite in situ, and also provides the copper-containing mordenite synthesized by the method as a catalyst for carbonylation of dimethyl ether Method for synthesizing methyl acetate reaction. Background technique [0002] Methyl acetate, also known as methyl acetate, is an important organic raw material intermediate and one of the most widely used fatty acid esters. It is widely used in textiles, spices, coatings, inks, adhesives, pharmaceuticals and pesticides. Body industry and other industries. Many downstream products can be produced from methyl acetate, such as hydrolysis of methyl acetate to produce acetic acid, hydrogenation of methyl acetate to produce ethanol, etc. In recent years, the demand for methyl acetate has continued to grow rapidly. [0003] The traditional production pro...

Claims

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Application Information

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IPC IPC(8): C01B39/26
Inventor 王立刚王萌甘永胜张小莽
Owner SHANGHAI BI KE CLEAN ENERGY TECH
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