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Treatment device for chlorine-containing waste gas of chlorination furnace

A treatment device and chlorination furnace technology, applied in gas treatment, chemical instruments and methods, membrane technology, etc., can solve problems such as ineffective consumption of lye, safety and environmental protection accidents, expensive prices, etc., to improve the adsorption rate of chlorine gas and improve the use of Efficiency, the effect of avoiding environmental accidents

Pending Publication Date: 2021-11-19
云南国钛金属股份有限公司
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Problems solved by technology

However, this technology also has certain problems. The CO2 in the tail gas of the chlorination furnace reacts with alkali to form sodium bicarbonate and sodium carbonate, resulting in ineffective consumption of lye, and the resulting sodium bicarbonate and sodium carbonate crystalline salts are easy to block the tail gas pipeline. , affecting the normal production of the chlorination furnace
FeCl 2 The solution absorbs chlorine, and the effect is also better, but FeCl 2 relatively expensive
When the molten salt chlorination furnace fails, a large amount of chlorine gas produced by the anode enters the tail gas system for washing, and the tail gas scrubber cannot completely absorb the anode chlorine gas. If the unwashed chlorine gas is discharged into the atmosphere, it will cause serious safety and environmental protection accidents

Method used

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  • Treatment device for chlorine-containing waste gas of chlorination furnace

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention discloses a treatment device for chlorine-containing waste gas of a chlorination furnace, and belongs to the technical field of chemical production equipment. According to the technical scheme, a ferrous solution low in price is adopted to replace an alkali solution or a FeCl2 solution to wash chlorine in the waste gas; and two tail gas systems are connected in series and in parallel, and when the fused salt chlorination furnace breaks down, process tail gas and sanitary tail gas are connected in series to absorb and treat anode chlorine, so that the absorption effect of the chlorine is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of chemical production equipment, and in particular relates to a treatment device for chlorine-containing waste gas of a chlorination furnace. Background technique [0002] In order to remove Cl in the exhaust gas of chlorination furnace 2 And HCl, usually the exhaust gas of the chlorination furnace is introduced into the scrubber in series, and the TiCl in the exhaust gas of the chlorination furnace is removed by pickling 4 and HCl, using alkaline washing or FeCl 2 The solution is washed to remove the chlorine gas in the exhaust gas of the chlorination furnace. However, this technology also has certain problems. The CO2 in the tail gas of the chlorination furnace reacts with alkali to form sodium bicarbonate and sodium carbonate, resulting in ineffective consumption of lye, and the resulting sodium bicarbonate and sodium carbonate crystalline salts are easy to block the tail gas pipeline. , affecting the...

Claims

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Application Information

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IPC IPC(8): B01D53/18B01D53/14
CPCB01D53/18B01D53/1406B01D53/1456B01D53/1493B01D2252/10B01D2257/2025B01D2257/2045
Inventor 王富文和奔流刘峰陈建立刘红星李建军祝永红刘文马昕
Owner 云南国钛金属股份有限公司
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