Process and apparatus for separating mixed solution of liquid petrolatum and xylene

A technology of mixed solution and separation method, which is applied in the direction of distillation purification/separation, petroleum industry, recovery/refining of mineral wax, etc. It can solve the problems of increased production cost, waste of raw materials, inconvenient recovery, etc., and achieves a high degree of automation and reduced The effect of production cost and simple structure

Active Publication Date: 2007-06-27
SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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Problems solved by technology

The deficiencies that these processing methods exist are: the one, the mixed solution of white mineral oil and xylene is treated as waste, can cause the great waste of raw material and environmental pollution; If it is not recycled, it can lead to an increase in production costs; the third is to use a large pot to heat and separate, although it can be separated and recovered, it is not continuous with the production process, and the recovery is inconvenient and insufficient, and the operation is complicated

Method used

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  • Process and apparatus for separating mixed solution of liquid petrolatum and xylene

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Embodiment

[0013] It is used in Shandong Aidi Polymer Material Co., Ltd. After the special equipment is connected to the extraction process in the ultra-high molecular weight polyethylene fiber production process, a white mineral oil and xylene mixed solution outflow pipe is installed on the extraction box. This outflow pipe Connect with the white mineral oil and xylene mixed solution input pipe 3 on the thin film evaporator 1, adjust the temperature controller so that the temperature in the cavity of the thin film evaporator 1 is higher than the boiling point of xylene, and the xylene in the thin film evaporator 1 is vaporized , separated from the white mineral oil, the separated white mineral oil flows downward into the white mineral oil recovery tank 2, and then the recovered white mineral oil is sent into the dissolution tank, the air pump 6 is turned on, and vaporized under the action of the negative pressure chamber 5d The xylene in the condenser 5 flows into the condenser 5, and th...

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Abstract

The present invention discloses process and apparatus for separating mixed solution of liquid petrolatum and xylene. The process includes the following steps: leading the mixed solution of liquid petrolatum and xylene into thin film evaporator, heating the mixed liquid, leading liquid petrolatum into liquid petrolatum storage tank, cooling gaseous xylene in the condesator, leading the liquefied xylene to xylene storage tank, and returning the separated liquid petrolatum and xylene separately to the dissolving tank and the extracting tank in the production line. The apparatus for separating mixed solution of liquid petrolatum and xylene consists of a thin film evaporator, a liquid petrolatum recovering tank, pipelines, a condensator, a suction pump, a liquefied xylene recovering tank and an oil furnace. The present invention is automatic and has no pollution and capacity of lowering the production cost of ultrahigh molecular weight polyethylene.

Description

technical field [0001] The invention relates to a separation method and special separation equipment for the mixed solution of lysate and extractant used in the production of ultra-high molecular weight polyethylene fibers, in particular to a separation method and special equipment for the mixed solution of white mineral oil and xylene. Background technique [0002] At present, ultra-high molecular weight polyethylene fiber, carbon fiber and spun fiber are collectively referred to as three high-performance fiber materials in the world. Among them, ultra-high molecular weight polyethylene fiber has the characteristics of high strength, high modulus and low density. It has shown great advantages in quality composite materials, played an extremely important role in modern war and defense equipment, aerospace and aviation, and has been more and more widely used in civilian fields. Therefore, the development and application of this fiber is of great significance. In the process ...

Claims

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Application Information

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IPC IPC(8): C07C7/04C07C15/08C10G73/00
Inventor 胡建国任意
Owner SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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