RU2520168C2 - Sanitary-hygienic cleaning agent - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: described is a sanitary-hygienic cleaning agent containing the following components, wt %: hydrogen chloride (with respect to 36% hydrochloric acid 15.5-22) 5.58-7.92, nonionic surfactant 0.5-1.6, polyelectrolyte 2.0-6.0, hexamethylenetetramine 0-4.0, acid corrosion inhibitor 0.03-0.1, water - the balance. The acid corrosion inhibitor used is a reaction product of polyethylene polyamines with benzyl chloride in molar ratio 1:3, respectively, or a reaction product of polyethylene polyamines with oleic acid and benzyl chloride in molar ratio 1:1:3, respectively.

EFFECT: high efficiency of removing rust and hardness salt deposits from toilet bowls, faience sinks and ceramic tile surfaces, faster treatment and longer shelf life of the cleaning agent.

3 cl, 4 ex

Description

The invention relates to hygienic cleaning products intended for the effective removal of stable rust formations, deposits of hardness salts from toilets, earthenware sinks and tiled surfaces, etc.

It is known sanitary-hygienic cleaner Sanaks, containing the following components, wt.%:

Sodium hypochlorite 4.0 Caustic soda 13.0 Sodium metasilicate 0.6 Sodium Tripolyphosphate 0.1 Sodium carboxymethyl cellulose 0.02 Water Up to 100

Sanaks cleaning agent is obtained by preliminary mixing the components and dissolving them in water at room temperature (Sanaks cleaning agent, TU 6-015-1508-90).

The disadvantage of the cleaning agent is that it has insufficient indicators of the degree of rust removal, the presence of active chlorine irritates when using the human respiratory tract.

Known means for cleaning appliances in toilets, containing 5-30 wt.% Hydrogen peroxide used as the main component, 1-1.5 wt.% Inorganic or organic acid, mainly sulfamic, or hydroxyacetic or acetic acid, or hydrochloric acid and 6-56 wt.% Water (JP 63-66440, 199001240600 A, 1989). The disadvantage of the cleaning agent is that it has a low washing ability, is distinguished by the high cost of the chemical compounds used (their high content is 44.0-94.0 wt.%).

The closest to the claimed combination of essential features and the achieved result is a sanitary-hygienic cleaning agent (RU 2129145, publ. 04/20/1999, bull. No. 11) to remove rust, deposits of salts, liquids, etc.

The formulation of the cleaning agent consists of the following components, weight%:

Synthetic hydrochloric acid 10.0-15.0 Nonionic surface active substance (surfactant) 1.0-1.5 Polyelectrolyte VPK-402 3.0-5.0 Acid Corrosion Inhibitor 0.05-0.1 Water Rest

A disadvantage of the known cleaning agent is the duration of the processing process - from 20 minutes to 3-4 hours, depending on the contamination of the sanitary facilities when using relatively weak solutions of hydrochloric acid, the content of the latter in terms of hydrogen chloride is 3.6-5.4 g per 100 g of components , in the absence of an effective acid corrosion inhibitor. The cleaning ability is in the range of 85-90%.

The objective of the invention is the development of the composition of sanitary-hygienic cleaning products, expanding the range of cleaning products used, increasing the efficiency of removing rust, hardness salts and other deposits.

The technical result is an increase in the efficiency of a sanitary-hygienic cleaning agent and an increase in its shelf life, a decrease in the processing time, and waste disposal.

The above technical result is achieved by the development of the composition of the cleaning agent containing the following components, wt.%:

Hydrogen chloride (in terms of 36% hydrochloric acid 15.5-22) 5.58-7.92 Nonionic surface active substance (surfactant) 0.5-1.6 Polyelectrolyte 2.0-6.0 Hexamethylenetetramine (urotropin) 0-4.0 Acid Corrosion Inhibitor 0.03-0.1 Water Rest

An increase in the content of hydrogen chloride in the detergent formulation contributes to the effective removal of stable rust formations and deposits of hardness salts by increasing the dissolution rate. As the acid, synthetic hydrochloric (hydrochloric) acid can be used - technical or gas with a concentration of 23 to 36%.

The composition of the cleaning agent includes surfactants - neonol, or syntanol, or oksinol - contributing to foaming and enhancing washing properties. The compatibility of these surfactants with acids has been tested, in particular, with synthetic hydrochloric acid, they do not adversely affect the effect of removing rust, deposits of hardness salts, etc. As an acid corrosion inhibitor, the reaction product of polyethylene polyamines with benzyl chloride in a molar ratio of 1: 3, respectively, or the reaction product of polyethylene polyamines with oleic acid and benzyl chloride in a molar ratio of 1: 1: 3, respectively, is used.

To impart a certain viscosity to a sanitary-hygienic cleaning product, which allows holding the product on the surface being cleaned due to viscosity (thickener) and reducing the consumption of cleaning agent, VPK-402 (TU 6-05-2009) or VPK-410 polyelectrolytes are used.

An acid corrosion inhibitor can be used both in the absence and in the presence of hexamethylenetetramine (urotropine, urizole). The latter is used in hot summer time or when changing the concentration of hydrochloric acid more or less than 23%. Urotropin increases the protective properties and stability of the inhibitor when changing the concentration of hydrochloric acid and ambient temperature.

The above components provide the proposed cleaning product with high quality, contribute to the removal of rust, grease, etc.

The technological process for the production of cleaning products consists of the following stages:

- preparation of raw materials;

- dosing and mixing of raw materials;

- packing and packaging of the finished product.

Mixing of the raw materials is carried out in any sequence, followed by stirring at 15-30 ° C. The components of the formulation dissolve well not only in hydrochloric acid, but also in water. Packing is carried out by known devices designed for packing liquid products. Products are packaged in plastic dishes, cans, etc. with a capacity of 1,5, 10 and 20 liters. For small packaging, you can use glassware with a capacity of 1 liter. Products can be transported in barrels or railway tanks, as the product has an anticorrosive property.

The invention is illustrated by the following examples.

Example 1. In the reactor with a stirring device load the components of the formulation, in wt.%: Inhibited hydrochloric acid with hexamethylenetetramine (urotropin) (5.58 hydrogen chloride in terms of 36% hydrochloric acid 15.5), 0.03 acid corrosion inhibitors - the reaction product of polyethylene polyamines with benzyl chloride in a molar ratio of 1: 3 and 1.0 hexamethylenetetramine (urotropine) (see the recipe), after which 0.5 neonol (surfactant), 2.0 polyelectrolyte (VPK-402) are loaded. The contents of the reactor are stirred at 15-20 ° C for 15-20 minutes.

Determine the washing and cleaning ability. The cleaning ability is 90-92%.

For toilets: a cleaning agent is applied to the contaminated surface, kept for 10-15 minutes, the treatment is carried out with a brush. For sewer pipes: 150-200 g (ml) of cleaning agent is poured into the drain hole of a bathtub, sink, etc., incubated for 2.5-3.0 hours and washed with plenty of water. In case of severe contamination, the treatment is repeated, increasing the exposure time.

Example 2. In the conditions of example 1 in the reactor are mixed in wt.%:

Hydrogen chloride (in terms of 36% hydrochloric acid 22.0) 7.92 Syntanol (surfactant) 1,6 Polyelectrolyte VPK-410 6.0 Hexamethylenetetramine (urotropin) 4.0 Acid Corrosion Inhibitor 0.1 Water Rest

As an acid corrosion inhibitor, the reaction product of polyethylene polyamines with benzyl chloride is used in a molar ratio of 1: 3, respectively. The formulation is stirred at 20-30 ° C for 15-20 minutes. The cleaning ability is 92-95%.

Example 3. Analogously to example 1, the components are mixed in the reactor, wt.%:

Hydrogen chloride (in terms of 36% hydrochloric acid 18.7) 6.75 Oksinol (surfactant) 1,0 Polyelectrolyte VPK-402 4.0 Hexamethylenetetramine (urotropin) 2,5 Acid Corrosion Inhibitor 0.05 Water Rest

As an acid corrosion inhibitor, the reaction product of polyethylene polyamines with oleic acid and benzyl chloride is used in a molar ratio of 1: 1: 3, respectively.

The mixture is stirred at 25-30 ° C for 10-15 minutes. The cleaning ability is 91-93%.

Example 4. In the conditions of example 1 in the reactor are mixed in wt.%:

Hydrogen chloride (in terms of 36% hydrochloric acid 22.0) 7.92 Syntanol (surfactant) 1,2 Polyelectrolyte VPK-402 5,0 Hexamethylenetetramine (urotropin) 0 Acid Corrosion Inhibitor 0.08 Water Rest

As an acid corrosion inhibitor, the reaction product of polyethylene polyamines with oleic acid and benzyl chloride is used in a molar ratio of 1: 1: 3, respectively.

The formulation is stirred at 20-30 ° C for 15-20 minutes. The cleaning ability is 92-95%.

The proposed sanitary-hygienic cleaning agent provides effective removal of stable rust formations, the deposition of hardness salts from toilets, fats from earthenware sinks, tiled surfaces, has a washing ability. The need for cleaning products in Russia is currently approximately 8.5-9 thousand tons per year. The constituent components are available, synthetic hydrochloric acid, as well as hydrochloric acid (23%), formed during the combustion of organochlorine wastes, are a large-tonnage product of JSC Caustic (Sterlitamak). VPK-402 polyelectrolyte is produced at OJSC Kaustik, and VPK-410 is produced at OJSC Technolog (Sterlitamak). Acid corrosion inhibitors are also produced at OJSC Caustic.

Claims (3)

1. A sanitary-hygienic cleaning agent containing hydrogen chloride, a nonionic surfactant, a polyelectrolyte, an acid corrosion inhibitor and water, characterized in that it contains, as an acid corrosion inhibitor, the reaction product of polyethylene polyamines with benzyl chloride in a molar ratio of 1: 3, respectively, or the reaction product of polyethylene polyamines with oleic acid and benzyl chloride in a molar ratio of 1: 1: 3, respectively, and possibly hexamethylenetetramine in the following ratio of components in wt.%:
Hydrogen chloride (in terms of 36% hydrochloric acid 15.5-22) 5.58-7.92 Nonionic surface active substance (surfactant) 0.5-1.6 Polyelectrolyte 2.0-6.0 Hexamethylenetetramine 0-4.0 Acid Corrosion Inhibitor 0.03-0.1 Water Up to 100 2. The tool according to claim 1, characterized in that as a nonionic surfactant, it contains neonol, or syntanol, or oxinol. 3. The tool according to claim 1 or 2, characterized in that as a polyelectrolyte it contains a VPK-402 or VPK-410 polyelectrolyte.