SU1097664A1 - Detergent for cleaning milk processing equipment - Google Patents

Abstract

1. Detergent for cleaning dairy equipment, containing complexing agent and polyoxyethyleneglycol ether of synthetic primary fatty alcohols, characterized in that, in order to increase the stability of cellulose acetate membranes, the tool additionally contains pancreatin and potassium or sodium chloride in the following ratio, May.%: Complexing agent 15-35 Polyoxyethylene glycol ether synthetic primary fatty alcohols. 0.5-1.5 Pancreatin 10-60 Potassium or sodium chloride Up to 100 2. The detergent of claim 1, which means that the agent contains sodium tripolyphosphate and / or ethylene diamine tetraacetic acid as the complexing agent, and quality (About polyoxyethylene glycol ether, synthetic primary fatty alcohols, polyoxyethylene glycol ether, synthetic primary fatty alcohols fraction C (o and / or fraction C (.

Description

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4 The invention relates to technical detergents for removing by dissolving and crushing protein contaminants from the surface of synthetic, cellulose acetate and synthetically ultrafiltration membranes, which are used for thickening the milk industry in the butter and cheese industry, and is intended for the intended use in dairy enterprises. industry. It is known to clean equipment for the production of dairy products, containing non-ionic surfactant, sodium carbonate and bicarbonate, sodium tripolyphosphate and alkaline pro-kinase 1, however, the use of this drug necessitates a second stage of membrane processing with citric acid solution, as well as special membrane disinfection from the original culture introduced with the alkaline prosthesis, the liquid fluid. A detergent for cleaning dairy equipment, in particular for purifying cellulose acetate membrane membranes, is also known to contain disodium or trisodium phosphate, sodium tripolyphosphate or ethylene diamine tetraacetic acid sodium salt, syntanol DS-10 (polyhydroxyethylene glycol ester of synthetic cholor)))). synthetic primary fatty alcohols fraction) and sodium carbonate 2. This tool is effective when the concentration of the agent in water is iO wt.% and higher. Under these conditions, the membranes, when washed in solution, at pH 11, 5 and above, are not sufficiently stable and do not withstand the operation time for more than 30 hours. The aim of the invention is to increase the stability of cellulose acetate membranes. The goal is achieved by the fact that the detergent containing the complexing agent and polyoxyethylene glycol ether of synthetic primary fatty alcohols additionally contains pancreatin and potassium or sodium chloride in the following ratio of components, wt.%: Complexing agent 15-35 Polyoxyethylene glycol ether of synthetic primary fatty alcohols 0,5-1-1, 5 Pancreatin 10-60 Potassium or sodium chloride Up to 100 It is optimal to use sodium tripolyphosphate and / or sodium salt of ethylenediamine as the complex copolymer. mintetraacetic acid, and as polyoxyethylene glycol ether of synthetic primary fatty alcohols - polyoxyethylene glycol ether of synthetic primary fatty alcohols of the Xu Ci8 fraction and / or fraction,. The proposed detergent is a yellowish powder that can be obtained under industrial conditions by dry mixing a calculated amount of the starting components on the existing equipment for the production of powdered detergents for other purposes. The drug and its solutions are flammable and hazardous. It was established that at a working concentration of the agent from 0.1 to 3 wt.% At 30–50 ° C, the preparation completely washes away all milk contaminants from the surface of ultrafiltration membranes for 15–45 minutes. Membranes do not require acid aftertreatment. In tab. 1 translates the recipe of HORO and the proposed detergents. The preparations, compositions of which are given in table. 1, the contaminants are removed from the surface of metal and glass cups, as well as industrial membrane samples under laboratory conditions. For this purpose, whey proteins are used as contaminants, remaining in the solution after removing the curd from the sour milk. Contaminated samples are placed in a thermostatically controlled bath with mokhtsim solution and the inclusion of a stirrer creates circulation of the washing solution. After 5, 10, 15, 20, 30, 45 and 60 minutes, the samples are removed from the solution and the degree of removal of contaminants is determined by the gravimetric method. The results are shown in Table. 2. The described agent cleanses the surface of all types of ultrafiltration membranes under the mildest conditions at the lowest pH values, but is mainly intended for washing the most pH-sensitive membranes — cellulose acetate membranes that do not withstand the pH of 8.5-9 for a long time. ,five. Cellulose acetate membranes are stable for 100 h in 1% and higher concentration of detergent solution at. Under the same conditions, the stability of these membranes in a solution of a known agent is insufficient and does not exceed 30 hours of operation. A decrease in the concentration of a known agent to less than 0.5 wt.% Leads to a sharp decrease in the efficiency and time of washing off the surface of the membrane, and a decrease in the concentration of the PE agent to 0.1 wt.%. does not reduce the effectiveness of the tool. Thus, the proposed detergent is more effective than the known one. Ingredients

12,5 20 15 25

12.5 5

0.2 0.5 0.8 0.5 1 0.8 0.5 0.2 - 39 39 39 74.5 39

- - - - 39 35 35 10 35

- - - - - - -

Table 1

35

25

25 35

15

1.5

1.2

0.5 1 1.5

3.5

- 74.5

39 3.5 35 60 60 10

50 23.8

Table 2 S ° 5eB5 HS 2 2 2 9S 15 15 content in detergent, May. % 3nn: Z IIlLl: III 10 (known)

Claims (2)

1. A detergent for cleaning dairy equipment containing a complexing agent and polyoxyethylene glycol ether of synthetic primary fatty alcohols, characterized in that, in order to increase the stability of cellulose acetate membranes, the agent additionally contains pancreatin and potassium or sodium chloride in the following ratio of components, May.%: Complexing agent 15-35 Synthetic primary fatty alcohol polyoxyethylene glycol ether Pancreatin Potassium or sodium chloride 2. The detergent according to claim 0.5-1.5 10-60 Up to 100 1, characterized in that, as a complexing agent, the agent contains sodium tripolyphosphate and / or sodium salt of ethylenediaminetetraacetic acid, and polyoxyethylene glycol ether of synthetic primary fatty alcohols of the fraction C _t0 -C _<a and / or fraction C _(o tC _v;} .