Preparation method of catalyst and preparation method of ethanolamine

A catalyst, ethanolamine technology, applied in the preparation of organic compounds, molecular sieve catalysts, preparation of amino compounds, etc., can solve the problems of complex process route, strong dependence on raw material ethylene and ethylene oxide, etc., to achieve high product selectivity, process The effect of short routes and low prices

Active Publication Date: 2016-05-04
SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, the production of ethanolamine depends on ethylene and ethylene oxide, and the production of ethylenediamine depends on monoethanolamine. The process route is relatively complicated and highly dependent on raw materials ethylene and ethylene oxide.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1.1 Catalyst preparation

[0030] (1) Perform ion exchange on the prepared sodium mordenite with 1mol / L ammonium nitrate solution at a constant temperature of 90°C and ion exchange time of 10h. Calcined to make hydrogen molecular sieve;

[0031] (2) Weigh 100g of hydrogen-type mordenite, modify the hydrogen-type mordenite prepared in step 1 with 1mol / L ammonium chloride solution, ion exchange temperature is 70°C, exchange time is 8h, filter after the exchange is completed, and Dry at ℃ for 8 hours;

[0032] (3) Weigh 20g of pseudo-boehmite powder, mix it with the modified molecular sieve obtained by drying in step 2, add an appropriate amount of nitric acid and knead it evenly, and then extrude it into a strip, dry the molded catalyst at 110°C for 10 hours, and then cool it at 250°C Calcined for 2 hours, then heated up to 450°C and calcined for 4 hours to make an ammoniation catalyst.

[0033] 1.2 Evaluation conditions

[0034] The catalyst described above was used ...

Embodiment 2

[0037] 2.1 Catalyst preparation

[0038] (1) The preparation method of hydrogen-type mordenite is described in step 1 in Example 1;

[0039] (2) Weigh 100g of hydrogen-type mordenite, weigh 2.1320g of diammonium hydrogen phosphate, add it to 140mL of deionized water to dissolve completely, add the mordenite to the prepared diammonium hydrogen phosphate solution, stir and impregnate at 80°C for 8h , dried at 120°C for 10 hours after impregnation;

[0040] (3) Weigh 23g of pseudo-boehmite powder, mix it with the phosphorus-modified molecular sieve obtained by drying in step 2, add an appropriate amount of nitric acid and knead it evenly, and then extrude and shape it. Roast at low temperature for 2 hours, then raise the temperature to 480°C and bake at high temperature for 4 hours to make an ammoniation catalyst.

[0041] 2.2 Evaluation conditions

[0042] The catalyst described above was used for the ammoniation of ethylene glycol. Among them, the ammoniation reaction tempe...

Embodiment 3

[0045] 3.1 Catalyst preparation

[0046] (1) The preparation method of hydrogen-type mordenite is described in step 1 in Example 1;

[0047] (2) Weigh 100g hydrogen type mordenite, weigh 4.6785gLa(NO 3)3 ·6H 2 O, add to 145mL deionized water to dissolve completely, add mordenite to the prepared lanthanum nitrate solution, stir and impregnate at 90°C for 8h, and dry at 110°C for 8h after impregnation;

[0048](3) Weigh 25g of pseudo-boehmite powder, mix it with the lanthanum-modified molecular sieve obtained by drying in step 2, add an appropriate amount of nitric acid and knead it evenly, and then extrude it into a strip. Roast at low temperature for 1 hour, then raise the temperature to 500°C and bake at high temperature for 4 hours to make an ammoniation catalyst.

[0049] 3.2 Evaluation conditions

[0050] The catalyst described above was used for the ammoniation of ethylene glycol. Among them, the ammoniation reaction temperature is 320°C, the molar ratio of ammonia t...

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PUM

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Abstract

The invention provides a preparation method of a catalyst and a preparation method of ethanolamine, and relates to a catalyst for directly producing a downstream organic amine product from glycol by an ammonification reaction and a preparation method. The preparation method of the catalyst comprises the following steps: a sodium type mordenite molecular sieve is produced into a hydrogen type molecular sieve by ion exchange, acidic modification of the hydrogen type molecular sieve is carried out, and the modified hydrogen type molecular sieve and pseudo-boehmite powder are mixed. The invention also discloses a catalyst for catalyzing ammonification of glycol. The invention also discloses a preparation method of ethanolamine, and comprises ethanolamine prepared with the catalyst for catalyzing ammonification of glycol. The process route is short, the product selectivity is high, and method has economic advantages.

Description

technical field [0001] The invention relates to a catalyst and a preparation method for directly producing downstream organic amine products through ammoniation reaction of ethylene glycol. technical background [0002] The most important use of ethanolamine products is the production of surfactants, and they are also used in textile chemicals, gas purifiers, cement coagulants, petroleum additives, leather softeners, lubricating oil anti-corrosion agents, anti-coke additives, etc. Ethylenediamine products are mainly used in pharmaceutical intermediates; chelating ligands; epoxy resin curing agents; pesticide fungicides; fiber surfactants, etc. [0003] At present, the production of ethanolamine is mainly a mixture of monoethanolamine, diethanolamine and triethanolamine produced by the reaction of ethylene oxide and ammonia, and the ratio of the three ethanolamines is mainly determined by the ratio of ethylene oxide and ammonia. Ethylene oxide is mainly produced by epoxidati...

Claims

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Application Information

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IPC IPC(8): B01J29/18C07C213/02C07C215/08C07C209/16C07C211/10
CPCB01J29/18B01J2229/18B01J2229/37C07C209/16C07C213/02C07C215/08C07C211/10
Inventor 杨振宫飞祥
Owner SHAANXI YANCHANG PETROLEUM GRP
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