SU1162871A1 - "rmp-p-d" detergent for cleaning milk equipment - Google Patents

Description

The invention relates to means for removing milk stick, formed on the metal surface of heat exchange equipment during heat treatment of milk in the 5 dairy industry.

Known circulating non-dismountable method of cleaning the metal surfaces of heat exchangers from the deposition of milk sludge, which takes 10 consecutive stages of 30-40 minutes each, using aqueous solutions of alkali (0.8-1.0% hydroxy solution) yes sodium at 70-80 ° C) and acid (0.3-0.5% solution of nitric or sulfamic acids at 65-70 ° C).

The total duration of cleaning, washing and disinfection of devices is 1, 5-2 hours [ί].

During the heat treatment of milk, 2 types of pollution are formed on the surface of the heat exchange apparatus: a milky stone (an old milk stone) and a milky burn (a fresh {milk stone). The removal of milk stone or burned with acid and alkali solutions does not lead to a roll dissolution of the stone or weld, and necessitates periodic disassembly of the apparatus to remove the remaining stone or burned manually using brushes and ruffs [23.

Known composition used for cleaning dairy equipment

20

25

thirty

milk stick, containing ;.%: Sodium hydroxide 60 Tetrasodium- phosphate 12 Ethylene diamine tetra- acetic acid four Sodium silicate ten Dodecylbenzenesul sodium fountain 3 Sodium carbonate eleven to Aqueous solutions of this tool

<0

45

they completely dissolve the dairy burner in one wash cycle, have a strong foaming, contain relatively scarce ethylenediaminetetraacetic acid, have a weak complexing ability and therefore do not have significant advantages55 over the usual washing of equipment with aqueous solutions of individual acids and alkalis.

Also known is a composition containing polyethylene glycol ether of synthetic fatty alcohols C alkyl benzene sulfonate, sodium nitrate, potassium or ammonium monopersulfate, ammonium chloride and sulfamic acid [3 1.

However, this tool does not provide enough dissolving ability of milk stick.

Closest to the invention to the technical essence is a detergent 4 for cleaning dairy equipment, containing in wt.%:

Sodium hydroxide 35-40

Sodium tripolyphosphate 28-32

Sodium alkylbenzenesulfonate 1-4

Polyethylene glycol ether of synthetic fatty alcohols of fraction C, ₉ - (sintanol DS-U) 2-6

Sodium silicate 6-8

Sodium Carbonate To I00

However, a known detergent

has insufficient dissolving ability.

The aim of the invention is to increase the dissolving ability of the tool.

This goal is achieved by the fact that detergent containing sodium hydroxide, sodium tripolyphosphate, polyethylene glycol ether synthetic fatty alcohols fraction C, _# - C ₁₈ , sodium silicate and sodium srbonate, additionally contains synthetic fatty acids fraction ^C P ~ ^C 20 and perborate sodium at the following ratio of components, wt.%:

Sodium hydroxide Tripolyphosphate sodium Sodium perborate Polyethylene glycol ether synthetic fatty alcohols fraction ^with cG θιβ

5-U 25-35 15-40

0.2-0.8

5-8

Sodium silicate

Synthetic fatty acids fraction С ^ - С ₂₀ 0.1-0.8 Sodium carbonate Up to 100

Detergent is prepared as follows.

To the calculated amount of 35-42% aqueous solution of sodium hydroxide at 80-100 ° C with stirring

3 1162871 4

Synthetic fatty acids with a temperature of 80100 ° С are gradually added, after which sodium carbonate, then tripolyphosphate 5 are gradually added to the mixture;

sodium, synthanol DS-10, sodium silicate, sodium carbonate and, last of all, at a mixture temperature below 30-40 ° С sodium perborate.

The proposed detergent preparation pre-10 is a grayish-white free-flowing powder. The drug and its aqueous solutions are fire and explosion proof.

Optimal is the use of synthetic fatty acids 15

fractions of C ^ - C _2a and polyethylene glycol ether of synthetic fatty alcohols of the fraction C _1c - C _{1 J} in a weight ratio from 1: 1 to 1: 5. This allows you to use the drug up to 100 ° C 20

without stratification and decrease in detergency with low foaming. This tool provides a good emulsification of milk fat, has a low foaming, the combination of surfactant with sodium hydroxide effectively dissolves and disperses protein contaminants, hydrophilizes the protein surface, ensuring the transfer of protein substances from the metal to the washing solution. The addition of sodium perborate to the agent gives the agent a disinfectant property,

Table 1 shows the formulations and test data on the detergent and foaming ability of the proposed detergent and on known detergents.

Foaming of the compared formulations is determined by the standard Ross-Miles method.

About the detergent and dissolving ability is judged visually by the time of dissolution of milk burn in a working solution of the agent at 90 + 2 ° C under the same conditions with an equal stirring intensity and a fresh milk burn: wash solution ratio of 1: 100 at a concentration of 1 wt.% means in solution.

Table 2 shows the properties of the formulations with a different ratio of surfactants.

Thus, the data show that the drug ”RMP-PD” exceeds the known means by the dissolution time of the detergency by 2-3 times, has a lower foaming capacity and has disinfectant properties. With a working concentration of “RMP-PD” in water from 1 to 3 wt. X. he is able to dissolve milk burns at 80-90 ° C for 3-5 minutes in one stage.

Table!

Components and properties of compositions The content of components, wt.%, According to examples one 2 3 Known means 3 Known means four Sodium hydroxide five eight ‘0 Sodium Tripolyphosphate 25 ^thirty 35 Sodium Perborate 15 27 40 Sodium silicate (liquid glass) five 6 eight Synthetic fatty acid fraction c, ₇ - c _2e 0.1 0.4 0.8 - Sintanol DS-10 0.2 0.5 0.8 Sodium carbonate 49.7 38.1 5.4

$

1162871

6

dissolving milk stick, min 7 five 3 thirty* 15 h The initial height of the column of foam (No) mm, at 90 ° C and 0.5% detergent concentration facilities 154 147 141 160 165 The presence of disinfecting ability there is there is there is there is Not

* The dissolution depth of a milk stick in a 1% solution of this agent after 30 minutes does not exceed 70% by weight of the initial weight of a milk stick.

Table 2

Components and properties of compositions The content of components wt.% When the ratio of FLC: syntanol DS-10 1: 1 1: 3 1: 5 Sodium hydroxide eight eight eight “Sodium Tripolyphosphate thirty thirty thirty Sodium Perborate 27 27 27 Sodium silicate 6 6 6 Synthetic fatty acids Ts- 0.5 0.2 0.1 Sintanol DS-10 0.5 0.6 0.5 Sodium carbonate 28 28.2 28.4 The time of dissolution of milk sludge in one stage, min five four 6

Foaming ability according to Ross-Miles

at 90 * С α _β 147 145 142 ⁿ ? eleven 10.2 9.2 Have 0.075 0.070 0,0 '

Claims (1)

Detergent for cleaning of dairy equipment, containing sodium hydroxide, sodium tripolyphosphate, polyethylene glycol ether of synthetic fatty alcohols of C ₁₀ - C _1y fraction, sodium silicate and sodium carbonate, characterized in that, in order to increase the dissolving ability of the agent, it contains synthetic · fatty acid fraction With _p ~ C _2O and perborate sodium in the following ratio, wt.%: Sodium hydroxide 5 — I0 Sodium tripolyphosphate 25-35 Sodium perborate 15-40 Polyethylene glycol ether synthetic fatty alcohols fraction With _1P - C ₁₈ 0,2-0,8 Sodium silicate 5-8 Synthetic fatty acids fraction С ₁₇ - С ₂₀ 0.1-0.8 Sodium carbonate Up to 100. zi „„ 1162871 > 1 162871 15