High-efficiency purifying device and process for fluorine

A purification device and fluorine gas technology, applied in the direction of fluorine/hydrogen fluoride, specific gas purification/separation, fluorine, etc., can solve the problems of easily blocking the gas flow channel of the adsorption device and affecting the normal production process, etc., and achieve rapid and thorough adsorption reaction and prolong The effect of life and simplification of operation procedures

Inactive Publication Date: 2017-12-08
广东金光高科股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In actual production, the common problem in the adsorption method is: when the fluorine gas is purified by the adsorption method, since the adsorbent is stacked in the adsorption device (usually the adsorption tower), the place where the fluorine gas and the adsorbent come into contact (usually the adsorption tower inlet), often due to the expansion of hydrogen fluoride gas absorbed by this part of the adsorbent, it is easy to bloc...

Method used

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  • High-efficiency purifying device and process for fluorine
  • High-efficiency purifying device and process for fluorine
  • High-efficiency purifying device and process for fluorine

Examples

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Embodiment 1

[0064] A high-efficiency purification device and process for fluorine gas, comprising the following steps.

[0065] Put the sodium fluoride whose quality meets the first grade index of YS / T 517-2009 into the feeding bin (5) of the screw feeder with a volume of 300L through the powder conveyor belt, and start the screw feeder (4) with a power of 1.0KW The variable frequency speed regulating motor (6) sends the sodium fluoride powder to the discharge bin (3) at a uniform speed under the condition that the set delivery rate is 0.5kg / min.

[0066] The fluorine gas to be purified is introduced into the fluorine gas booster pump (1), pressurized to 0.12Mpa, and the fluorine gas flow rate is set at 1.0kg / min, and connected to the fluorine gas nozzle (2) with an aperture of 0.1mm.

[0067] In a conical reactor (14) with a volume of 1000L, a bottom surface diameter ratio of 1:3, and a bottom height ratio of 1:10, a high-speed fluorine gas flow is injected from the fluorine gas nozzle (...

Embodiment 2

[0085] A high-efficiency purification device and process for fluorine gas, comprising the following steps.

[0086] Sodium fluoride whose quality is required to meet the first-class index of YS / T 517-2009 is put into the feeding bin (5) of the screw feeder with a volume of 500L through the airtight pipeline, and the screw feeder (4) with a power of 2.0KW is started. The variable frequency speed regulating motor (6) transports the sodium fluoride powder to the discharge bin (3) under the condition that the set delivery rate is 1.5kg / min.

[0087] Introduce the fluorine gas produced by medium-temperature fluorine production into the fluorine gas booster pump (1), pressurize to 0.15Mpa, set the fluorine gas flow rate at 2.0kg / min, and connect the fluorine gas nozzle with an aperture of 0.12mm (2 )middle.

[0088] In a conical reactor (14) with a volume of 2000L, a bottom surface diameter ratio of 1:3, and a bottom height ratio of 1:11, a high-speed fluorine gas flow is ejected f...

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Abstract

The invention discloses a high-efficiency purifying device and a high-efficiency purifying process for fluorine. The high-efficiency purifying device for the fluorine comprises a feeding cabin, a spiral feeder, a fluorine pressurizing pump, a fluorine jet head, a conical reactor, filters and a spiral regenerative reactor, and is characterized in that after being pressurized,the fluorine is jetted to entrain a powder adsorbent through the jet head; the fluorine and the powder adsorbent form a gas/solid turbulent cluster; and the powder adsorbent adsorbs hydrogen fluoride entrained in the fluorine. A pure product is obtained after dust in purified fluorine is filtered through the filters. The adsorbent sinks to the bottom of the reactor, and enters the spiral regenerative reactor for heating and regenerating through an airtight material cabin. The hydrogen fluoride is desorbed from the adsorbent, is attracted through an external negative pressure device, is filtered and gathered through a plurality of gas branch pipe filters, and flows out from the spiral regenerative reactor. The regenerated adsorbent is transmitted through an external device and is returned to the material cabin for recycling. The high-efficiency purifying device and the high-efficiency purifying process for the fluorine realize high-efficiency purifying of industrial fluorine, and have the advantages of reliable process, stable product quality and the like.

Description

technical field [0001] The invention relates to a high-efficiency purification device and process for fluorine gas. Background technique [0002] Fluorine (F 2 ) is the most active substance discovered so far by human beings, with extremely strong reactivity. The production of fluorine-containing chemicals with fluorine gas has many excellent properties and is widely used in the fields of national defense, information, electronics and chemical industry. For example, it is used as an etchant or cleaning agent in the manufacture of semiconductor devices, thin film transistors, purification of nuclear fuel in the nuclear power industry, synthesis of insulating gas sulfur hexafluoride in the power industry, synthesis of lithium hexafluorophosphate, an important raw material for lithium batteries in the new energy industry, etc. Therefore, the research and development of fluorine-related technologies is of great significance. [0003] Known methods for preparing fluorine gas i...

Claims

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Application Information

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IPC IPC(8): B01D53/10B01D46/00C01B7/20
CPCB01D46/00B01D53/10B01D2253/112B01D2257/2047B01D2259/40088C01B7/20C01B2210/0015
Inventor 张澍希李思洋
Owner 广东金光高科股份有限公司
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