High-concentration tetrapropylammonium hydroxide production process and high-concentration tetrapropylammonium hydroxide prepared by production process

A technology of tetrapropylammonium hydroxide and tetrapropylammonium bromide, applied in the field of quaternary ammonium alkali production, can solve the problems of affecting the production efficiency of high-concentration tetrapropylammonium hydroxide products, affecting product quality, and low concentration temperature , to achieve the effect of shortening the electrolysis time, shortening the concentration time and increasing the concentration temperature

Active Publication Date: 2021-08-10
KENTE CATALYSTS INC
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] For the above-mentioned related technologies, the inventors believe that when the concentration temperature is too high, tetrapropylammonium hydroxide is easy to decompose to form impurities, which affects product quality. The concentration temperature is generally not higher than 60°C, and the concentration temperature is low, which affects the production efficiency of high-concentration tetrapropylammonium hydroxide products to a certain extent

Method used

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  • High-concentration tetrapropylammonium hydroxide production process and high-concentration tetrapropylammonium hydroxide prepared by production process
  • High-concentration tetrapropylammonium hydroxide production process and high-concentration tetrapropylammonium hydroxide prepared by production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: high-concentration tetrapropyl ammonium hydroxide production process, use electrolyzer to carry out electrolysis, as figure 1 As shown, the electrolytic cell includes an anode chamber 1, a by-product chamber 2, a raw material chamber 3 and a cathode chamber 4 which are successively adjacent at the same height; an anode plate 5 is installed in the anode chamber 1, and a cathode plate 6 is installed in the cathode chamber 4 , the anode plate 5 is connected to the cathode plate 6 through a power supply; the anode chamber 1 communicates with the by-product chamber 2 through the first cationic membrane 7, the by-product chamber 2 communicates with the raw material chamber 3 through the anion membrane 8, and the raw material chamber 3 and The cathode chambers 4 are communicated through the second cationic membrane 9; the production process includes the following steps:

[0041] S1 electrolysis: take tetrapropylammonium bromide, add water to prepare tetrapropylam...

Embodiment 2

[0044] The difference between Example 2 and Example 1 is that step S2 of Example 2 was concentrated in a water bath at 80° C. for 125 minutes without cooling down the concentration process, and the others were consistent with Example 1.

Embodiment 3-6

[0046] The difference between embodiment 3-6 and embodiment 1 is that the process parameters of each step of embodiment 3-6 are different, the circulation flow rate of material in the anode chamber, by-product chamber and cathode chamber is 120ml / min, and others are all kept with embodiment 1 Consistent, each step process parameter of embodiment 3-6 is shown in Table 1.

[0047] Each step technological parameter of table 1 embodiment 3-6

[0048]

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PUM

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Abstract

The invention discloses a high-concentration tetrapropylammonium hydroxide production process and high-concentration tetrapropylammonium hydroxide prepared by the production process, and relates to the technical field of quaternary ammonium base production. The high-concentration tetrapropylammonium hydroxide production process comprises the following steps: S1, electrolysis: taking tetrapropylammonium salt, adding water to prepare a tetrapropylammonium salt aqueous solution, combining tetrapropylammonium cations with hydroxyl ions generated by electrolysis through an electrolytic method to form tetrapropylammonium hydroxide, and preparing a crude product; and S2, concentration: adding n-propyl alcohol which is 0.05-0.2 time of the weight of the crude product into the crude product, uniformly mixing to obtain a mixed solution, heating the mixed solution to 60-80 DEG C, and concentrating for not less than 60 minutes to obtain the high-concentration tetrapropylammonium hydroxide. The high-concentration tetrapropylammonium hydroxide production process has the advantage of high production efficiency.

Description

technical field [0001] The application relates to the technical field of quaternary ammonium base production, in particular to a high-concentration tetrapropylammonium hydroxide production process and the high-concentration tetrapropylammonium hydroxide prepared therefrom. Background technique [0002] With the development of society, people's living standards continue to improve, and society's requirements for environmental protection are getting higher and higher. As a porous material with a high specific surface area, molecular sieves are gradually being widely used in the fields of VOC treatment, automobile exhaust purification treatment, and steel plant exhaust gas treatment. The synthesis of molecular sieves generally requires the use of quaternary ammonium bases as templates, and tetrapropylammonium hydroxide as a template for the synthesis of molecular sieves is gradually widely used in the synthesis of all-silicon ZSM-5 molecular sieves, TS-1 molecular sieves and ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/07C25B3/09C25B3/20C25B9/21C25B9/13C25B15/021
CPCC25B3/00C25B15/02
Inventor 陈征海施旭升泮啸楚吴璐瑶
Owner KENTE CATALYSTS INC
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