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Carbon tetrafluoride extraction method and device

A carbon tetrafluoride and extraction method technology, applied in the chemical industry, can solve the problems of high cooling cost, high energy consumption of production enterprises, and increased production cost of carbon tetrafluoride, so as to reduce energy consumption, reduce cold sources, and reduce Effect of cold source delivery costs

Active Publication Date: 2012-06-20
四川众力氟业有限责任公司
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Problems solved by technology

[0002] At present, carbon tetrafluoride manufacturers generally adopt the technology of "low temperature and low pressure" to extract carbon tetrafluoride. The low temperature is -180°C and the low pressure is 0.098mPa. Pressure, production enterprises need to consume a lot of energy
[0003] At the same time, because the cold source mostly uses liquid nitrogen, carbon tetrafluoride manufacturers also need to pay a large amount of liquid nitrogen transportation fees, which virtually increases the production cost of carbon tetrafluoride

Method used

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  • Carbon tetrafluoride extraction method and device
  • Carbon tetrafluoride extraction method and device
  • Carbon tetrafluoride extraction method and device

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Embodiment Construction

[0039] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] Such as figure 1 , the invention provides a carbon tetrafluoride extraction method, comprising:

[0041] See figure 1 , A, the carbon tetrafluoride containing impurity is carried out rectification;

[0042] See figure 1 , B, extract the carbon tetrafluoride and the light components that step A rectifies, get rid of the light components, and reclaim carbon tetrafluoride; rectify the carbon tetrafluoride and the heavy components that step A rectifies, Get carbon tetrafluori...

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Abstract

The invention relates to the field of chemical industry and particularly relates to a carbon tetrafluoride extraction method and device. The carbon tetrafluoride extraction method comprises the following steps of: A, rectifying carbon tetrafluoride containing impurities; B, extracting the rectified carbon tetrafluoride and light components in the step A, so as to remove the light components and recycle the carbon tetrafluoride; and rectifying the rectified carbon tetrafluoride and heavy components in the step A, so as to obtain the carbon tetrafluoride; and C, collecting the rectified carbon tetrafluoride in the step B, wherein all rectifying temperatures in the step A and the step B range from below 50 to below 130 DEG C, and rectifying pressure in the step A and the step B ranges from 1mPa to 5 mPa. The carbon tetrafluoride extraction device comprises extraction and rectification equipment, extraction and recycling equipment, rectification equipment and collection equipment. According to the carbon tetrafluoride extraction method and device disclosed by the invention, the yield is improved by using an extraction absorption recycling method; and meanwhile, the rectifying temperatures (replacing the rectification with a temperature of below 180 DEG C by the rectification with a temperature of below 80 DEG C) are improved by using the extraction and rectification method. so that the energy consumption can be reduced.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a carbon tetrafluoride extraction method and an extraction device. Background technique [0002] At present, carbon tetrafluoride manufacturers generally adopt the technology of "low temperature and low pressure" to extract carbon tetrafluoride. The low temperature is -180°C and the low pressure is 0.098mPa. Pressure, production enterprises need to consume a lot of energy. [0003] At the same time, because the cold source mostly uses liquid nitrogen, carbon tetrafluoride manufacturers also need to pay a large amount of liquid nitrogen transportation fees, which virtually increases the production cost of carbon tetrafluoride. Contents of the invention [0004] The invention provides a carbon tetrafluoride extraction method and an extraction device, which can reduce energy consumption under the premise of ensuring quality. [0005] The invention provides a method for extractin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C19/08C07C17/38
Inventor 李小明刘静涛曹勇
Owner 四川众力氟业有限责任公司
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