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The preparation method of tetraamine copper carbonate solution

A technology of tetraaminocarbonate and copper solution, which is applied in the direction of cuproammonia complexes, chemical instruments and methods, molecular sieve catalysts, etc., to achieve the effect of improving stability

Active Publication Date: 2017-09-26
南京开丽环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tetraaminocopper carbonate is a water-soluble compound, and there are few reports about its preparation method and application prior art. Therefore, it is urgent to develop a new and efficient preparation method, and simultaneously develop its application field

Method used

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  • The preparation method of tetraamine copper carbonate solution
  • The preparation method of tetraamine copper carbonate solution
  • The preparation method of tetraamine copper carbonate solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 (preparation of tetraamino copper carbonate)

[0048] (1) Add ammonia water (555.1g, 20.01%, 6.53mol) into a 1L three-necked bottle, and start mechanical stirring;

[0049] (2) Add ammonium bicarbonate solid (80.36g, 1.02mol) at one time under stirring (if it is added without stirring, ammonium bicarbonate is easy to agglomerate, resulting in a decrease in dissolution rate), at this time the temperature of the system will slightly decrease;

[0050] (3) Ammonia gas flow, the flow rate is 180ml / min (the whole process of ammonia gas flow should be prevented from sucking back), the external temperature is set to 28°C, and the system is heated in a water bath;

[0051](4) After 15 minutes, the internal temperature reached 28°C, and there was a small amount of undissolved blocky solid;

[0052] (5) Continue to keep warm for 15 minutes, the solid is completely dissolved, and a colorless and transparent solution is obtained;

[0053] (6) Slowly add basic copper ...

Embodiment 2

[0060] Embodiment 2 (preparation of CHA type silica-alumina molecular sieve)

[0061] Prepare CHA-type silica-alumina molecular sieves through the following steps:

[0062] 1) Colloidal preparation: Add template agent (75.92g, 23.25%, 0.084mol) and KOH (104.0g, 91.17%, 1.69mol) to the beaker to prepare the solution prepared by dissolving 800g of water, then add aluminum sulfate (46.95 g, 0.070mol) was dissolved in 270g water to prepare the solution, after stirring for half an hour, add silica sol (498.42g, 30.00%, 2.49mol), and stir at 35°C for half an hour to obtain a uniform translucent colloid.

[0063] The molecular formula of the templating agent is (R 1 -N + (R 2 ) 3 ) m A m- , where R 1 for adamantane, R 2 They are the same as methyl, m is equal to 1, and A is hydroxide, which is obtained from purchase.

[0064] 2) Transfer the colloid in step 1) to a 2L autoclave, add 2.5g of seed crystals, stir at 120rpm, crystallize at 180°C for 10 hours, and filter to obtai...

Embodiment 3

[0074] Embodiment 3 (preparation CHA type silica-alumina molecular sieve)

[0075] Prepare CHA-type silica-alumina molecular sieves through the following steps:

[0076] 1) Colloidal preparation: add template agent (176.73g, 23.25%, 0.20mol) and KOH (47.76g, 91.17%, 0.78mol) into a beaker to prepare a solution prepared by dissolving 760g of water, and then add aluminum sulfate (43.33 g, 0.065mol) was dissolved in 250g water to prepare the solution, after stirring for half an hour, silica sol (546.77g, 30.00%, 2.73mol) was added, and a uniform translucent colloid was obtained after stirring at 35°C for half an hour.

[0077] The molecular formula of the templating agent is (R 1 -N + (R 2 ) 3 ) m A m- , where R 1 for adamantane, R 2 They are the same as methyl, m is equal to 1, and A is hydroxide, which is obtained from purchase.

[0078] 2) Transfer the colloid in step 1) to a 2L autoclave, add 3.0g of seed crystals, crystallize at 180°C for 10 hours under stirring at ...

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Abstract

The invention discloses a preparation method and an application of tetraamino copper carbonate. The preparation method of the invention is simple and efficient, and can realize industrial production. The tetraaminocopper carbonate prepared by the method of the invention is suitable for the preparation method of the catalyst for purifying automobile exhaust, and the stability of the copper ion in the catalyst is effectively improved through the method.

Description

technical field [0001] The invention relates to a preparation method and application of tetraamine copper carbonate. Background technique [0002] Tetraaminocopper carbonate is a water-soluble compound. There are few reports about its preparation method and application in the prior art. Therefore, it is urgent to develop a new and efficient preparation method and simultaneously develop its application field. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a novel and efficient preparation method of tetraammine copper carbonate. [0004] Another object of the present invention is to provide the application of tetraammine copper carbonate prepared by the above method. [0005] In order to achieve the above object, the present invention adopts the following technical solutions: [0006] A kind of preparation method of tetraamino copper carbonate, the molecular formula of described tetraamin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/14B01J27/24B01J29/76
Inventor 孙红
Owner 南京开丽环保材料有限公司
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