Rapid-decomposition formaldehyde purifying method

A formaldehyde purification and rapid technology, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of inconvenient and rapid decomposition of formaldehyde purification devices, and achieve the goal of improving work stability, prolonging service life, and improving stability Effect

Inactive Publication Date: 2018-01-19
骆金美
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  • Abstract
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a formaldehyde purification method that c

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  • Rapid-decomposition formaldehyde purifying method
  • Rapid-decomposition formaldehyde purifying method
  • Rapid-decomposition formaldehyde purifying method

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[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0034] The embodiment of the present invention provides a formaldehyde purification method that can be quickly decomposed, such as Figure 1-5 As shown, it includes a base (1), the top of the base (1) is fixedly installed with a casing (2), the front surface of the casing (2) is provided with a through hole (26), and the inside of the through hole (26) is inlaid with glass The arrangement of the plate (27), the through hole (16) and the ...

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Abstract

The invention provides a rapid-decomposition formaldehyde purifying method, and relates to the field of formaldehyde purification. A rapid-decomposition formaldehyde purifying device comprises a pedestal, a shell is fixedly arranged at the top of the pedestal, a box body is fixedly arranged at a position, positioned at the left side of the shell, of the top of the pedestal through a fixed rack, ascrew is inserted to the left side of the box body, and one end, close to the shell, of the screw penetrates through one side of the box body and extends into the box body. A gas and a liquid in the formaldehyde purifying device can be conveniently mixed through a motor, a rotating disk, a connecting rod, a push rod, a plate body and reset springs, so the device can be conveniently used by a user,and formaldehyde can be conveniently purified. The method has the advantages of increase of the working efficiency of the formaldehyde purifying device, increase of the utilization efficiency of theformaldehyde purifying device, and convenience in use of the device by the user.

Description

technical field [0001] The invention relates to the technical field of formaldehyde treatment, in particular to a formaldehyde purification method capable of rapid decomposition. Background technique [0002] Formaldehyde is used in the production of polyoxymethylene (POM). Generally, the formaldehyde solution needs to be concentrated to more than 75%, and the first step of polymerization reaction is carried out to generate paraformaldehyde, and then paraformaldehyde is used as a reaction monomer, and an appropriate amount of dioxane is added as a comonomer to carry out In the second step of polymerization reaction, long-chain polyoxymethylene is obtained, and finally by adding a terminator (carboxylic acid, etc.), the reaction is terminated by blocking the chain end. Finally, polyoxymethylene plastic particles are obtained after finishing. Polyoxymethylene, also known as "Saigang", is widely used in many industrial fields such as industrial machinery, automobile manufactu...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D46/00
Inventor 骆金美
Owner 骆金美
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