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Preparation method of tetraethylammonium hydroxide

A technology of tetraethylammonium hydroxide and equipment, applied in chemical instruments and methods, electrodes, electrodialysis, etc., can solve the problems of no obvious advantage in production cost, many materials, complicated process, etc., and reduce the use of membranes , high concentration and simple process

Active Publication Date: 2020-01-03
INNER MONGOLIA YANGFAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method integrates bipolar membrane electrodialysis and membrane distillation technology, and the prepared tetraethylammonium hydroxide aqueous solution has a high concentration, but the technological process is relatively complicated, and more materials are used, which is not advantageous from the perspective of production cost. Obvious advantage, therefore, it is necessary to improve it to improve production cost and efficiency

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  • Preparation method of tetraethylammonium hydroxide

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Effect test

Embodiment 1

[0043] A preparation method for tetraethylammonium hydroxide, comprising the following steps:

[0044] (1) Prepare the electrodialysis equipment: the assembly structure from the cathode to the anode is as follows: anion exchange membrane AM1, cation exchange membrane CM1, anion exchange membrane AM2, and cation exchange membrane CM2, thereby forming a cathode chamber, a product chamber, a feed liquid chamber, Acid chamber, anode chamber;

[0045] Among them, the cathode and anode are iridium-tantalum-coated titanium electrodes;

[0046] Anion exchange membrane AM1 is ASV membrane; anion exchange membrane AM2 is AHT membrane;

[0047] The cation exchange membrane CM1 is an OCM membrane; the cation exchange membrane CM2 is a CMV membrane;

[0048] (2) Add the corresponding solutions of the five compartments, open the circulation, remove the air, adjust the flow rate of each compartment to 400L / h, electrolyze, and the current density is 800A / m 2 , and open the feeding pump of ...

Embodiment 2

[0052] A preparation method for tetraethylammonium hydroxide, comprising the following steps:

[0053] (1) Prepare the electrodialysis equipment: the assembly structure from the cathode to the anode is as follows: anion exchange membrane AM1, cation exchange membrane CM1, anion exchange membrane AM2, and cation exchange membrane CM2, thereby forming a cathode chamber, a product chamber, a feed liquid chamber, Acid chamber, anode chamber;

[0054] Among them, the cathode and anode are iridium-tantalum-coated titanium electrodes;

[0055] Anion exchange membrane AM1 is ASV membrane; anion exchange membrane AM2 is AHT membrane;

[0056] The cation exchange membrane CM1 is an OCM membrane; the cation exchange membrane CM2 is a CMV membrane;

[0057] (2) Add the corresponding solutions of the five compartments respectively, open the circulation, remove the air, adjust the flow rate of each compartment to 300L / h, electrolyze, and the current density is 900A / m 2 , and open the feedi...

Embodiment 3

[0061] A preparation method for tetraethylammonium hydroxide, comprising the following steps:

[0062] (1) Prepare the electrodialysis equipment: the assembly structure from the cathode to the anode is as follows: anion exchange membrane AM1, cation exchange membrane CM1, anion exchange membrane AM2, and cation exchange membrane CM2, thereby forming a cathode chamber, a product chamber, a feed liquid chamber, Acid chamber, anode chamber;

[0063] Among them, the cathode and anode are iridium-tantalum-coated titanium electrodes;

[0064] Anion exchange membrane AM1 is ASV membrane; anion exchange membrane AM2 is AHT membrane;

[0065] The cation exchange membrane CM1 is an OCM membrane; the cation exchange membrane CM2 is a CMV membrane;

[0066] (2) Add the corresponding solutions of the five compartments respectively, open the circulation, remove the air, adjust the flow rate of each compartment to 500L / h, electrolyze, and the current density is 800A / m 2 , and open the fee...

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Abstract

The invention belongs to the field of compound preparation, and particularly relates to a preparation method of tetraethylammonium hydroxide. An assembly structure from a cathode to an anode of electrodialysis equipment is as follows: an anion exchange membrane AM1, a cation exchange membrane CM1, an anion exchange membrane AM2 and a cation exchange membrane CM2 form a cathode chamber, a product chamber, a feed liquid chamber, an acid liquid chamber and an anode chamber. The tetraethylammonium hydroxide is prepared from the raw material tetraethylammonium salt. The method has the advantages ofsimple preparation process, mild and safer reaction, less energy consumption, greatly reduced chloride ion impurities, high quality, simple byproduct treatment, safety and environmental protection.

Description

technical field [0001] The invention belongs to the field of compound preparation, in particular to a preparation method of tetraethylammonium hydroxide. Background technique [0002] Tetraethylammonium hydroxide (TEAH) is a common chemical product in the market and has a wide range of uses. It is mainly used as a templating agent, a phase transfer catalyst, and an impurity removal agent in the petroleum industry. TEAH is an indispensable basic intermediate to promote the development of organic synthesis, medicine, petroleum and other industries. [0003] Tetraethylammonium hydroxide is an organic quaternary ammonium base and a multipurpose chemical. It is a catalyst in the synthesis of silicone products such as silicone rubber, silicone resin and silicone oil; it is widely used in the electronics industry as an integrated circuit Plate cleaning, etching, and polishing reagents are also used for anisotropic corrosion of the Si-SiO2 interface in semiconductor microprocessing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/00C25B11/06B01D61/42
CPCB01D61/422C25B3/00C25B11/051C25B11/093
Inventor 李强梁煜沈加春张礼军
Owner INNER MONGOLIA YANGFAN NEW MATERIAL CO LTD
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