Novel polyether ketone refining process

A polyether ketone and process technology, which is applied to the process field of refining a polyether ketone, can solve the problems of high energy consumption and environmental pollution, and achieve the effects of short production cycle, low overall investment and easy management.

Inactive Publication Date: 2012-07-18
CHANGCHUN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The whole refining process consumes a lot of energy, a...

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  • Novel polyether ketone refining process
  • Novel polyether ketone refining process
  • Novel polyether ketone refining process

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Embodiment Construction

[0035] A novel polyether ketone refining process as shown in the figure is characterized in that it comprises the following steps:

[0036] Step 1 acetone liquid flooding process, the acetone in the acetone storage tank 37 is sent in the acetone evaporation kettle 33 through the V102 valve 11 with the acetone delivery pump 1, and under the effect of steam heating, the acetone vapor in the acetone evaporation kettle 33 along the The acetone vapor pipeline 13 enters the gas distribution pipe 26 at the bottom of the refining kettle 16 through the acetone vapor inlet 20. After being distributed by the gas distribution pipe 26, the acetone vapor passes through the material support plate 15 and contacts the polyether ketone to complete mass transfer and heat transfer. Process; the partially condensed acetone vapor stays in the refining still 16, and the rest of the acetone vapor enters the heat exchanger 23 through the material layer of the refining still 16, and the condensate flows...

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Abstract

The invention discloses a novel polyether ketone refining process, belonging to the fields of chemical engineering and fine chemistry industry, and particularly relates to a process for refinishing polyether ketone. A technical process comprises the following steps of: I, extensively leaching acetone repeatedly, and quickly feeding all diphenyl sulfone in polyether ketone in a refining kettle into an acetone solution of an acetone evaporation kettle to realize separation of diphenyl sulfone from polyether ketone; II, washing with water; III, drying; and IV, extracting a material, and cleaning the material in an air purging state. The process has the advantages of centralized equipment, small floor area, small overall investment, short production period, high efficiency, small quantity of operating personnel, convenience for managing, high production benefit, saving in energy consumption, zero discharge of pollutants in a production process, realization of high diphenyl sulfone leaching efficiency, low boiling point of acetone, small storage amount of an acetone tank and reduction in the energy consumption in the extensive leaching process of an acetone liquid, and capability of greatly saving energy since the waste water handling capacity is low in a water washing process, and is a novel environmentally-friendly chemical process.

Description

technical field [0001] The invention belongs to the fields of chemical engineering and fine chemical industry, and in particular relates to a process for refining a polyether ketone. Background technique [0002] Polyether ketone in the prior art was first produced by the British ICI company with diphenyl sulfone as solvent, 4, 4-difluorobenzophenone and hydroquinone as raw materials, and was nucleophilic in the presence of potassium carbonate or sodium carbonate. Synthesized by substitution condensation reaction. In the past ten years, a variety of series of polyether ketone high polymer compounds have been developed successively. The common feature of the reaction products is that after the reaction, the products, solvents, by-products, etc. are mixed together to form a solid mixture at room temperature. The main reactants 4, 4-difluorobenzophenone and hydroquinone in the product all participate in the reaction. Usually, the mixed solids are pulverized, and the diphenyl...

Claims

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Application Information

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IPC IPC(8): C08G65/46C08G8/02
Inventor 王树江王元瑞石秀敏尹丽乔迁
Owner CHANGCHUN UNIV OF TECH
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