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Processing method of urea-formaldehyde moulding powder

A processing method and technology of electric jade powder, applied in the field of electric jade powder processing, can solve the problems of low production efficiency, insufficient efficiency, lack of pertinence of amino molding compounds, etc., and achieve the effect of high production efficiency

Inactive Publication Date: 2014-06-11
吴文娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing amino molding production methods and equipment have shortcomings such as low degree of automation and insufficient efficiency. Most of the production equipment is ordinary chemical equipment, which lacks pertinence to the amino molding compound itself, resulting in low production efficiency. The present invention mainly aims at Processing method of electric jade powder with urea-formaldehyde resin as base material

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] The processing method disclosed by the invention comprises the following steps:

[0014] (1), formaldehyde, urea, urotropine are added to reactor and reacted, obtain urea-formaldehyde resin;

[0015] Chemical reaction formula:

[0016] nH 2 N-||-NH 2 +nCH 2 O→HN-NH-CH 2n +nH 2 o

[0017] The reaction time is 50 minutes to 70 minutes, and the reaction temperature is 110°C. Above-mentioned formaldehyde is 37% formaldehyde solution, manufactures every ton of finished product, and formaldehyde feeding amount is 920KG, and urea feeding amount is 500KG, and urotropine feeding amount is 38KG

[0018] (2), the urea-formaldehyde resin obtained in the step (1) is dropped into a kneader, and the pulp is added in the kneader and kneaded to obtain a slurry, and the amount of the pulp is 250KG.

[0019] (3), adding the slurry obtained in step (2) into the drier to dry to obtain block material, so that the moisture of the block material is 3%-5%; the temperature in the drying ...

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Abstract

The invention discloses a processing method of urea-formaldehyde moulding powder, and belongs to the field of chemical manufacture. The processing method mainly comprises the following steps: step one, adding formaldehyde, urea, and urotropine into a reactor to carry out reactions so as to obtain a urea-formaldehyde resin; step two, throwing the urea-formaldehyde resin into a kneading machine, adding paper pulp into the kneading machine, kneading the mixture in the kneading machine so as to obtain slurry; step three, adding the slurry into a drying machine, drying so as obtain blocks; step four, adding the blocks into a grinding machine, grinding the blocks into powder; step five, making the powder go through a separator, then grinding the powder in a ball mill so as to obtain a semi-finished product; step six, sieving the semi-finished product so as to obtain a finished product. The processing method has high production efficiency, and the output can reach 6000 tons per year.

Description

technical field [0001] The invention relates to a processing method of electric jade powder, which belongs to the field of chemical production. Background technique [0002] Amino molding compound (see GB13454-92 for details) refers to a chemical raw material made of urea-formaldehyde resin or melamine-formaldehyde resin as the base material, adding cellulose, hardener and other additives, mainly used for pressing into tableware and electrical appliances Structural parts such as switches. The existing amino molding production methods and equipment have shortcomings such as low degree of automation and insufficient efficiency. Most of the production equipment is ordinary chemical equipment, which lacks pertinence to the amino molding compound itself, resulting in low production efficiency. The present invention mainly aims at A processing method of dianyu powder based on urea-formaldehyde resin. Contents of the invention [0003] The applicant researched and improved the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/30C08L97/02C08G12/36
Inventor 吴文娟
Owner 吴文娟