SU1330149A1 - Composition for cleaning sewage pipes - Google Patents

Abstract

This invention relates to sewage cleaning compositions. The aim of the invention is to impart anti-desorption properties to the composition. The composition contains, wt%: alkali 10-40; zfiroaldehyde fraction of ethyl alcohol 55-100 C 10-29; alkaline effluent production of caprolactam based on sodium salts of carboxylic acids 5-18; cyclohexanone oxime at 1-8 and water - up to 100. The use of the proposed composition allows to achieve 100% dissolution of sewage pollution in 2 hours and during 30 days prevents; subsidence contamination. 2. table C b 00 co N co

Description

one

The invention relates to the household chemical industry and can be applied to clean sewer pipes.

The purpose of the invention is to impart anti-desorption properties to the composition.

In tab. Table 1 shows the formulations of the proposed formulation with various concentrations of ingredients, as well as the formulation of a known composition.

The composition is prepared as follows.

An estimated amount of water, alkali is loaded into the reactor equipped with a stirrer and a water jacket. The mixture is stirred until complete dissolution. The solution is cooled to 15–20 ° C, after which the calculated amount of alkaline effluent production of caprolactam, cyclohexanone oxime and the main fraction of ethyl alcohol is loaded and mixed until a homogeneous composition is obtained for 15–20 min.

The alkaline drain produced by capro-, lactam is formed during the oxidation of cyclohexine with air during neutralization and washing with an aqueous solution of an alkali organic: their acids and their esters.

The resulting aqueous-alkaline runoff after neutralization contains 16-18% sodium salts of organic acids, 1-3% cyclohexanone and cyclohexanol, 0.2-10% alkali. After distillation of cyclohexanone from a water-alkaline runoff from the bottom of a column, the alkaline runoff of caprolactam production with a concentration of sodium salts of 18–20% is removed from the bottom of the column.

An active principle in the use of alkaline waste as an ingredient of the composition for cleaning sewage pipes is the sodium salts of organic acids contained in it, including adipic, caproic, valerian, succinic, glutaric, oil.

Physical and chemical indicators of alkaline runoff (TU 113-03-488-84):

Mass of the dry

substances,% 25-45 Mass fraction of sodium salts of organic acids (in terms of sodium adipate),% 18-30 Mass fraction of cyclohexanol,% not more than 0.8 Mass fraction of cyclohexanone,% not more than 0.2

92

Mass fraction of resin,% not more than 10

pH of solution 10-13 Density g / cm - 1.1-1.2 Appearance Liquid brown, without mechanical impurities

The anti-adsorption properties of the composition are determined by a gravimetric method. Through a pipe treated with the proposed composition, a mixture consisting of water and a contaminant (50 g / l) consisting of equal parts of food waste, fat and irotin fibers circulates for 30 days. . After the specified time (1-30 days), the content of the contaminant in the circulating solution is determined by a gravimetric method. The amount of soil deposited on the inner surface of the pipe characterizes the antiresorption ability of the composition,

A parallel test was carried out: the specified mixture of water and the contaminant were passed through a pipe treated with a known composition.

Pollution dissolution efficiency is determined by the gravimetric method. In a glass beaker with a capacity of 200 ml, 2.5 ir of the indicated contaminant is placed, 25 g of the composition to be tested and 75 g of water are added. After 2.4 and 6 hours, the undissolved part of the soil is filtered off, the filter residue is dried to a constant weight, and the amount of the undissolved soil is determined.

The results of testing the antiresorption properties of the compositions, the effectiveness of the dissolution of contaminants are given in Table. 2

In tab. The 2 initial composition - the composition circulating in the pipe for 30 days, contains 50 g / l of contaminant.

As can be seen from the above data, the introduction of caprolactam and cyclohexanone production into an alkaline drain composition reduces the sedimentation rate of contaminants, i.e. gives the composition antiresorption properties and high efficiency. The compositions according to examples 1-3 dissolve 100% of the sewage pipes in 2 hours and for 30 days prevent the sedimentation of the pollution.

. 31330149

Claims (1)

DETAILED DESCRIPTION OF THE INVENTION A composition for cleaning sewage pipes, containing an alkali, an etherealdehyde fraction of ethyl alcohol of 55-100 ° C, and water, characterized in that, in order to impart anti-desorption properties on the composition, it additionally contains oxime; cyclohexanone and alkaline runoff production of caprolactam based on sodium salts of carbonate acids in the following ratio of components, wt.%: Sulfite or 7 hydrosulfite on three Etherealdehyde fraction of ethanol 55-100 С Ethylene glycol Ethyl cello-sol Alkali Alkaline stock caprolactam production Oxime cyclohexanone Water 20.0 7.5 2.5 25 10.0 20.0 29.0 8.0 30.0 20.0 20.0 Up to 100 40.0 25.0 10.0 5.0 41.0 25.0 25.0 f 5.0 11.0 18.0 3.0 19.0 7.5 1.0 4.0 8.0 0.5 9.0 - 2.0 To 100 To 100 To 100 To 100 To 100 To 100 To 100 Alkali Etherealdehyde fraction of ethanol 55-1 The alkaline runoff of the production of caprolactam based on sodium salts is carboxylic. acids Oxime cyclohexanone - Water to Table Editor N.Kishtulinets Compiled by L.Rusanova Tehred A.Kravchuk Order 3538/26 Circulation 379 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Table 2 Proofreader L. Patay Subscription