SU1648967A1 - Method for obtaining liquid detergent greterol-ii - Google Patents

Abstract

The invention relates to the production of detergents, and in particular to methods for producing liquid detergents for washing and disinfecting workplaces, hands of workers contaminated with industrial dirt and waste mineral or vegetable oils, as well as washing products from various fabrics. The aim of the invention is to intensify the process and save fatty feedstock. The method involves saponification of a mixture of fatty feedstock with oxyethylated monoizononylphenol, taken in a 1: 1 ratio, at 20–25 ° C, and subsequent introduction of 1-2% soda ash or sodium chloride into the saponified mixture. 1 tab.

Description

The invention relates to the production of detergents, and in particular to methods for the production of liquid detergents for washing and disinfecting workplaces, workers' hands contaminated with industrial dirt and waste mineral or vegetable oils, as well as washing articles of various fabrics. It intensifies the process and saves fatty feedstocks.

The method is carried out as follows.

Fat raw materials before saponification are mixed with ethoxylated monoizononilphenol in the ratio of 1: 1. Saponification is carried out at 20-25 ° C, then 1-2% of soda ash or sodium chloride is introduced into the saponified mixture, to obtain the Treterol-P liquid detergent.

The ethoxylated monoizononylphenol is obtained by alkylation of phenol with propylene trimers and oxyethylation of the resulting monoizononylphenol 6-10 moles of ethylene oxide.

Under selected conditions, the initial products are uniformly and completely saponified at low temperatures without the formation of acid soaps, which do not dissolve poorly in the form, reduce the intensity of the process and impair the quality of the finished product. This drastically reduces the saponification time to form a liquid medium and increases productivity. In addition, the process can be carried out in a single reactor, which simplifies the instrumentation of the process. It also achieves the saving of fatty raw material, which is required two times less than by a known method.

Conducting the saponification process at a temperature of more than 25 ° C reduces the speed of the process, and also complicates the instrumentation of production. Decrease

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Temperatures less than 20 ° C make it difficult to mix the components and drastically reduce the reaction rate. Decreasing the ratio of fatty acids - hydroxyethylated monoizononylphenol to less than 1: 1 reduces the stability of the properties of the detergent, and increasing it to more than 1: 1 does not lead to a further increase in the performance properties of the target product. The addition of 1-2% soda ash or sodium chloride reduces viscosity and increases the stability of the detergent. An increase in their concentration of more than 2% does not lead to a further increase in the operational properties of the product, and a decrease of less than 1% reduces the stability of its properties and may lead to the formation of a precipitate.

PRI me R. In the calculated amount of water at 20 ° C and stirring, oxethylated monoizonylphenol (10%) and sodium hydroxide are dissolved in an amount of 1.8% (calculated depending on the acid value of the fatty acids) on the amount of fatty acids.

After the dissolution process is complete, fatty acids (10%) are fed in a small stream into the alkaline product and mixed for 10 minutes, then 1% of calcinated soda or sodium chloride is added. The stirring process is stopped after 50 minutes. At the end of the saponification process, the pH of the medium is 8.2. The finished product is drained into the container.

The results of testing the known and proposed methods are presented in the table.

From the presented data it follows that using a ratio of fatty acids: ethoxylated monoizonylphenol more than or less than 1: 1, the concentration of soda ash or sodium chloride more than 2 or less than 1%, and the process temperature more than 25 or less than 20 ° C does not result in a liquid detergent high quality tools.

Thus, the use of saponification of the fat raw material in a mixture with monoisononylphenol, ethoxylated 6-10 mol of ethylene oxide, at a ratio of 1: 1 and 20-25 ° C, followed by the addition of 1-2% soda ash or sodium chloride to the mixture process, reduce its duration from 6 to 1.5 hours and save fat raw materials.

Claims (1)

Invention Formula A method for producing a liquid detergent, comprising saponifying the fatty material with heating and stirring and the subsequent introduction of soda ash or sodium chloride, characterized in that. that, in order to intensify the process and save fatty raw materials, fatty raw materials are taken in a mixture with oxyethylated monoisononylphenol at a ratio of 1: 1, saponification is carried out at 20-25 ° C, and soda ash or sodium chloride is taken in an amount of 1-2% by weight of detergent facilities.