Process for depolymerizing and purifying high-performance and environment-friendly phenylalanine ammonia lyase (PAL) flame-retardant material

A kind of flame-retardant material and environment-friendly technology, which is applied in the field of depolymerization and purification process of high-performance environment-friendly PAL flame-retardant material, can solve the problems of increasing investment, environmental pollution, etc., and achieve the effect of promoting disintegration and dispersion

Inactive Publication Date: 2012-01-18
杭州正博新型建筑材料有限公司
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Problems solved by technology

Any of the above methods introduces chemicals, brings new impurities into the product (raw materials), and causes new pollution to the environment. It is necessary to adopt disposal technology and increase investment

Method used

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Embodiment Construction

[0018] This high-performance environment-friendly PAL flame-retardant material depolymerization purification process includes the following steps:

[0019] A. Depolymerization: Depolymerization and dispersion is carried out by using a target plate type liquid flow pulverizer, that is, the high-purity PAL material is carried by the high-speed liquid flow as the medium, and collides with the fixed target plate, and the material and the target plate collide and collide at high speed. The high-speed function of the liquid flow is finally transformed into the crushing energy of the material, so that the material is broken. The concentration of the slurry after depolymerization and dispersion is 15%-20%. The PAL material content in the high-purity PAL material is 90%-98%.

[0020] B. Purification: Purification is achieved by using a screw propulsion centrifuge, that is, during the high-speed advancement of the screw of the screw centrifuge, the gravity of the particle size of the m...

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Abstract

The invention relates to the technical field of flame-retardant materials, in particular to a process for depolymerizing and purifying a high-performance and environment-friendly phenylalanine ammonia lyase (PAL) flame-retardant material, and solves the technical problems that the prior art is unreasonable and the like. The process comprises the following steps of: A, depolymerizing; and B, purifying. Compared with the prior art, the process for depolymerizing and purifying the high-performance and environment-friendly PAL flame-retardant material has the advantages that: the dynamic action of hydration expansive force generated by hydration of a high-speed water medium and a substance and repulsive force of a diffused electric double layer formed by fully hydrating interlayer cations is fully exerted, disintegration and dispersion are promoted, the material is separated from impurities and purified (the medium water can be recycled), chemical impurities are prevented from being introduced and environment pollution harm is avoided in the conventional medicament floatation, high-purity micro/nano PAL material powder is prepared, and a material basis is provided for preparing the high-performance and environment-friendly flame-retardant material.

Description

technical field [0001] The invention relates to the technical field of flame retardant materials, in particular to a depolymerization and purification process for high-performance and environment-friendly PAL flame retardant materials. Background technique [0002] Flame retardant is of great importance to human health and safety and social and economic development, and its significance is self-evident. In the fields of construction, chemical industry, military, transportation and other fields with their own fire protection needs and in the field of flammable polymer materials, the proportion of flame retardant materials in reducing fire hazards is as high as 70%. Practice has proved that flame retardant materials play an important role in reducing fire casualties, avoiding major economic losses and protecting the ecological environment. Therefore, the research, production and application of flame retardants and flame retardant materials are important for social and economic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/28C09C3/04C08K7/10
Inventor 张正良
Owner 杭州正博新型建筑材料有限公司
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