SU738644A1 - Chlorine absorbent - Google Patents

Description

(54) CHLOR ABSORBENT

one

The invention relates to a method of obtaining absorbers and can be used in the field of adsorption purification of air from acidic impurities, for example chlorine. .five

A known chlorine scavenger based on active carbon containing caustic potassium 1 as an active additive.

A disadvantage of the known absorbing agent is its low absorption capacity for chlorine at an absorber moisture content of up to 3%.

The closest solution to the invention according to the technical essence and to the 15 result that can be quenched is a chlorine absorber containing a porous base, for example, active carbon and monoethanolamine 2.20 as an active additive.

The disadvantage of the famous absorb-. l is its low chlorine capacity which is 20%.

The aim of the invention is to create an absorber with an increased chlorine capacity.

The goal is achieved by a chlorine absorber containing a porous base and an active additive to the body.

These compounds are used as compounds of the first type of base 1 Mannich in the following ratio. components, wt.%: compound of Mannich base type 1.0-20, porous base 80-99. A distinctive feature of a red en 2nd absorber is that, as an active supplement of organic compounds, it contains compounds of the Mannich base type and the starting components at the above ratio.

During the preparation of the absorber, a porous base, for example, active carbon, is impregnated with an aqueous solution of H-phenyl-N-ethylethylenediamine (hydrochloride) with a concentration of 2 gO l / l, dried for 2-3 hours at a temperature of treutre-TO. The resulting absorber contains 10 wt.% The active additive. The proposed absorber is tested at a temperature, the specific velocity of the gas-air flow of 0.5 l / min cm; gas / air humidity 50%; chlorine concentration in the gas-air mixture 4.6 mg / l; slip concentration of 0.001 mg / l.

In tab. 1 shows the results of tests of the known and proposed absorbers.

In tab. 2 results of the test results on the chlorine of samples with different content of active additives.

The content of the active additive in the absorber is in the range from 1 to 20 wt.%, The optimal additive is 1012, 5 wt.% (Table 2).

The proposed absorber oblgvdaet absorptive capacity for chlorine when the moisture content in the sample to 5%

5.0 Active Oxide

N-phenyl-N-ethylethylene diamine hydrochloride

and exceeds the known absorber 1.5-2 times in dynamic activity.

The use of the proposed absorber will allow to increase the seismic effect of chlorine gas purification plants or personal respiratory protective equipment, increase their reliability, and reduce operating costs for gas purification in industry.

Table

53

Claims (1)

Content 573864 Claims Invention Chlorine absorber, contents porous base and active additive of organic compounds, distinguished by the fact that it contains compounds such as Mannich's base, with the aim of turning 5 or a container of chlorine, wt.% 5 soy46 Dineni base type manniche 1.020; porous base 80-99. Sources of information taken into account in the examination of Melnik A, Basic chemisorption / Oborongiz, 1938, p. 148-149. 2, Patent of Great Britain No. 11577376, cl. With 1 A, pub. 10/17/67 (prototype).