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A kind of preparation hydrogen fluoride washing tower

A washing tower, a first-level technology, applied in the field of preparing hydrogen fluoride washing tower, can solve the problems of reaction furnace body corrosion, air duct blockage and backflow, etc.

Active Publication Date: 2020-08-07
厚成新材料(南通)有限公司
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Problems solved by technology

[0003] Prior Art 1 and Prior Art 2 The hydrogen fluoride separation and impurity refining devices are commonly used pre-purification towers, washing towers, condensers, rectification towers and degassing towers, wherein washing and condensation are usually one of the processes for refining anhydrous hydrogen fluoride 1. The existing technical problems mainly include that the washing acid coming out of the bottom of the washing tower enters the washing circulation storage tank. The washing acid pipeline is generally inserted into the washing circulation storage tank below the liquid level of 800mm. The rise of the scrubbing acid liquid level in the tower will block the air duct for transporting hydrofluoric acid gas and flow back to the reaction furnace, causing corrosion to the reaction furnace body

Method used

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  • A kind of preparation hydrogen fluoride washing tower
  • A kind of preparation hydrogen fluoride washing tower
  • A kind of preparation hydrogen fluoride washing tower

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 , figure 2 , image 3 As shown, a washing tower for preparing hydrogen fluoride is characterized in that: it comprises washing tower 1, washing circulation storage tank 2, washing acid pump assembly 3, primary condenser 4, the bottom of washing tower 1, primary condenser 4 and washing The circulation storage tank 2 communicates to form a U-shaped connector.

[0019] The washing tower 1 includes a washing acid outlet I5, a washing tower body 6, an air duct 7, a tray 8, a liquid separator 9, a spray assembly 10, and an exhaust port 11, and the primary condenser 4 includes an air inlet 12. Primary condenser body 13, condenser tube plate assembly 14, liquid remover 15, gas outlet 16, washing acid outlet II 17.

[0020] The hydrofluoric acid gas is condensed through the gas guide pipe 7, the tray 8, the liquid separator ...

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Abstract

The invention relates to the technical field of fluorine chemical industry, in particular to a hydrogen fluoride preparation washing tower. The hydrogen fluoride preparation washing tower is characterized by comprising a washing tower, a washing circulating storage trough, a washing acid pump assembly and a primary condenser, wherein the bottoms of the washing tower and primary condenser are communicated with the washing circulating storage trough to form a U-shaped communicating vessel.

Description

technical field [0001] The invention relates to the technical field of fluorine chemical industry, in particular to a washing tower for preparing hydrogen fluoride. Background technique [0002] Hydrogen fluoride has been widely used in electronics, chemical industry, petroleum and other industries. It is mainly used as a refining process for preparing fluorine salts, fluorohaloalkanes, fluorine refrigerants, corroding glass, impregnating wood, electrolyzing elemental fluorine, etc., and separating impurities after obtaining crude hydrogen fluoride. It is a key process, and the process of condensation is included in the refining process. Chinese invention patent (patent number CN201310287202.4, patent name is a production method of anhydrous hydrogen fluoride) discloses a production method of anhydrous hydrogen fluoride, which is characterized in that it includes the following steps: feeding fluorite powder and sulfuric acid into the pre-reactor ; In the pre-reactor, sulfur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/00C01B7/19
CPCB01D53/002B01D53/1456B01D53/18C01B7/192C01B7/195
Inventor 杨松
Owner 厚成新材料(南通)有限公司
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