The method of localization of hydrazine and/or its derivatives, aliphatic and/or aromatic amines

 

(57) Abstract:

Usage: localization of the Straits of toxic substances on the surface of the land. The inventive effect of the reagent on the shed toxic substances ( hydrazine and / or its derivatives, aliphatic and / or aromatic amines ), as the reagent is used an aqueous solution containing salts of zinc and / or magnesium in an amount of not less than 30 wt.%, when a volume ratio localizable substance and reagent 1:1o1.5. table 2.

The invention concerns the protection of the environment from toxic compounds, namely localization of toxic chemicals such as hydrazine, its derivatives, aliphatic or aromatic amines.

The following data shows the allowable concentrations of substances localization (according to the book "Harmful substances", Lenizdat, 1985).

The name of the substances MPC, mg/m3< / BR>
Hydrazine 0,1

1,1 demerged-

Razin 0,1

Diethylamin 30

The triethylamine 10

Aniline 0,1

By ingestion of these substances on the soil surface occurs simultaneous penetration in soil, groundwater, and air, resulting in dramatically disrupts the environment.

Basically what s use of chemical, physico-chemical and mechanical methods, and different for each substance.

There is a method of localization of hydrazine, which includes the most common techniques for prevention of consequences of emergency situations, accompanying the Strait of substances of the class of amines.

The method includes the following operations: the construction around the Strait of the dike; the impact of the Strait reagent with the aim of localization; neutralization of the Straits.

The essence of the method consists in effect of the reagent on the Strait of hydrazine and/or its derivatives, aromatic and/or aliphatic amines.

In table. 1 shows comparative data of known and proposed methods.

As can be seen from the data table. 1, the proposed method in comparison with the known system includes one main stage.

The method is as follows.

V a R I a n t 1. On the surface of the soil is the Strait of hydrazine in the amount of 100 liters spill area treated with 100 l of a solution having the composition of,

MgCl217,5

ZnCl223

MgCl2, CaCl2,

NaCl etc. 10

Water the rest

After processing take soil samples for the determination of the effect of containment penetration of hydrazine in ocvi is Strait 30% aqueous solution of diethylamine in the amount of 100 L. The spill area is treated similarly to variant 1. After processing take soil samples to determine the depth of penetration of diethylamine in the soil and analyze its content in the atmosphere.

The results are presented in table. 2.

V a R I a n t 3. On the surface of the soil is the Strait of aniline in the amount of 100 liters spill area treated with 100 l of a solution (composition listed in option 1). Analyses after treatment similar to options 1, 2.

As can be seen from the data table. 2, already after 30 min prevents the ingress of substances into the soil and their entry into the atmosphere (the content of substances below the maximum permissible concentration). According to the Institute of hygiene and occupational pathology RSFSR Ministry of health report contract N 20 (92) 1548), respiratory effects of the product, the resulting localization is missing. After intragastric administration to determine LD50the compound obtained is referred to 111 hazard class (source hydrazine hazard class 1)

The METHOD of LOCALIZATION of HYDRAZINE AND/OR ITS DERIVATIVES, ALIPHATIC AND/OR AROMATIC AMINES, including exposure to the reagent, wherein the reagent is used as an aqueous solution containing salts of zinc and/or magnesium in an amount of not less than 30 wt. at about

 

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