CZ220998A3 - Emulgating oil - Google Patents

Abstract

The invented emulgating oil intended for preparation of decontamination emulsion contains 9 to 16 parts by volume of n-butyl acetate or n-amyl acetate, 8 to 14 parts by volume of ethyl butyrate or n-propyl propionate or n-butyl propionate, 3 to 5 parts by volume of n-octyl alcohol, 5 to 10 parts by volume of methyl benzoate or ethyl benzoate or n-propyl benzoate or n-butyl benzoate, 4 parts by weight of ethoxylated nonylphenol of the general formula Ci9Hi19-Ar-O- (Ci2Hi4O)inH, wherein n is either nine or ten, 0.35 to 0.6 parts by weight of alkyl sulfate of the general formula Re(2)-OSOi3 e-.Mee+, wherein Re(2) represents alkyl containing 12 to 14 carbon atoms, and Mee+ represents a sodium ion. The invented oil further comprises 0.6 to 0.9 parts by weight of alkylbenzene sulfonate of the general formula Re(3)- (Ar)SOi3 e-.Mee+, in which Re(3) represents alkyl having 11 to 13 carbon atoms, and Mee+ represents a sodium ion and 11.25 parts by weight of sodium acetate.

Description

Emulsifying oil.

Technical field

The present invention relates to an emulsifying oil which is used to prepare a decontamination emulsion. The emulsion is intended for the decontamination of surfaces of military equipment, transport, industrial and agricultural equipment, technical equipment and building objects (hereinafter referred to as "techniques") that are dangerously contaminated by militarily important or industrial, highly toxic substances (hereinafter toxic substances) and biological agents.

BACKGROUND OF THE INVENTION

There is currently no known mixture. which at the same time satisfies both the requirements for relatively low material aggressiveness and ecological harm, as well as the efficiency and speed of decontamination of the materials of the technology, especially those having low resistance to the penetration of poisonous substances into their structure.

Decontamination mixtures which contain halogenated hydrocarbons as solvents are generally effective, but are unacceptable because of their adverse environmental impact. Aqueous decontamination mixtures that are more environmentally friendly, however, do not have sufficient capacity to dispose of toxic substances that have penetrated the structure of the material before decontamination begins. The mere surface decontamination of non-resistant materials is generally inadequate. Therefore, in order to ensure sufficient safety of exposed persons to contact the material after decontamination, deep decontamination is necessary.

None of the mixes adhere to vertical smooth surfaces for a sufficiently long time after spraying, but they all run off relatively quickly, reducing the likelihood of achieving the desired decontaining effect.

Abroad, there are emulsion-type decontamination mixtures with optimum decontamination efficiency. However, their oil components contain unacceptable chlorinated hydrocarbons or have a significant percentage of aromatic or cyclic hydrocarbons, see for example emulsions of patents

DE 36 38 625, 38 15 753. Aromatic as well as partially hydrogenated aromatic and cycloaliphatic hydrocarbons are among the substances which are relatively difficult to degrade biologically.

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SUMMARY OF THE INVENTION

The above-mentioned drawbacks are overcome by the emulsifying oil of the present invention, which is based on this. The composition of claim 1 comprises 9 to 16 parts by volume of n-butyl acetate or n-amyl acetate, 8 to 14 parts by volume of ethyl butyrate or n-propyl propionate or n-butyl propionate, 3 to 5 parts by volume of n-octyl alcohol, 5 to 10 parts by volume of methylbenzoate or ethylbenzoate or n- propyl benzoate or n-bulyl benzoate, 4 parts by weight of ethoxylated nonylphenyl of the formula CoH 2 -Zr-O-CC-EE 1 H, wherein the index n is nine to ten, 0.35 to 0.6 parts by weight of alkylsulfate of the formula R 12 ⁾ -OSO 3 ' .Me \ in which R ^<2 · 'stands for alkyl with carbon number from 12 to 14, and Me ⁺ represents a sodium ion, 0.6 to 0.9 parts by weight alkylbenzensidfonatu formula R ^ij) - (AJ) with i .Me ⁺ in which R ^U! denotes alkyl of 11 to 13 carbon atoms and Me ⁺ denotes sodium ion, 11.25 parts by weight of sodium acetate.

The emulsion decontamination mixture is prepared from two basic components. One component is an emulsifying oil and the other is a chemically active agent. The emulsifying oil that carries other useful properties of the emulsion is a mixture of organic solvents and emulsifiers. The chemically active agent is an aqueous suspension of calcium hypochlorite with a concentration of Ca (OCl) ₂ in water of 2 - (- 10 wt.% With the addition of up to 1 wt.% Ground talc. The agent carries the chemical detoxifying or disinfecting effect of the emulsion. The hypochlorite suspension produces a reverse water-in-oil emulsion, characterized by its specific structure and advantageous properties, a two-phase dispersion whose continuous phase consists of organic solvents and the dispersed phase is an aqueous solution of a chemical agent. The finely dispersed insoluble particles (predominantly calcium carbonate), which are accompanying admixtures of calcium hypochlorite, and ground talc particles also contribute to stabilizing the emulsion.

The formation of the desired specific inverted emulsion structure is conditioned by both the optimal choice of the individual oil components, i.e., organic solvents and emulsifiers with a suitable HL13 value, the lacquer and the characteristics of the aqueous hypochlorite suspension (electrolyte with finely dispersed insoluble particles).

Emulsifying oil, as a mixture of organic solvents with surfactant emulsifiers, predominantly contains fatty esters of carboxylic acids and alcohols. Thus, in comparison with the prior art solutions, the emulsifying oil has the advantage of a substantially higher biodegradability.

The advantage of emulsifying oil-containing emulsions of the above-mentioned composition is that it very well wets all running surfaces of the technique and also has suitable flow properties (lixotropic behavior), thanks to which it adheres well to tall and vertical surfaces. It is sufficiently stable and thus provides the prerequisites to act effectively on the decontaminated surface for the entire time required to achieve the desired degree of detoxification or disintegration.

Selected organic solvents improve the solubility of droplets of lipophilic toxic substances, incl. their "thickened" recipes present on contaminated surfaces. I also increase the ability of the emulsion to extract toxic substances from the structure of contaminated materials and to penetrate into the subsurface layers of these materials. They enable deep decontamination.

Since the external phase of the emulsion which comes into direct contact with the surface of the decontaminated material is a mixture of non-aggressive organic solvents, the material aggressiveness of the aqueous hypochlorite component of the emulsion is also reduced.

DETAILED DESCRIPTION OF THE INVENTION

An emulsion oil is prepared by mixing and homogenizing the weighed or measured components. The invention is explained in more detail by the following examples of compositions of alternative decontamination oil formulations.

Example 1

For the preparation of 1 liter of proposed emulsifying oil:

292.5 parts by volume of n-amyl acetate

292.5

180

67.5 parts by weight of n-butyl propionate parts by weight of ethylbenzzoate parts by weight of n-octyl alcohol wt. parts of the ethoxylated nonylphenol of the general formula ΟΟΗΗΗ ^ΑΑΑ -Ο kde ^ kde kde kde where n is 10

13.5 wt. parts of alkyl sulfate of the formula R ⁱ²⁾ -OSO ₃ '.Me \ in which R ^(2' stands for alkyl with the number of carbon atoms 1, 2, and Me ⁺ represents a sodium ion

13.5 wt. parts of an alkylbenzene sulfonate of the general formula (R ⁾ - (Ar) SO ₃ '.Me ⁺ , in which R ⁰ denotes an alkyl of 11, and Me ^r denotes a sodium ion

11,25 lun. parts of sodium acetate

Example2

For the preparation of 1 liter of proposed emulsifying oil:

202.5 parts by volume of n-butyl acetate

315 parts by volume of ethyl butyrate

225 parts by weight of n-propyl benzoate parts by weight of n-octyl alcohol wt. parts of ethoxylated nonvlphenol of the general formula Γ ^ Ηΐρ-Ατ-Ο-ίΰ ^ Οΐ ,, Η, where n is equal to 10

13.5 wt. parts of an alkyl sulphate of the general formula R ⁽²⁾ -OSO ₃ .Me ⁺ , in which R ¹²⁾ denotes an alkyl of 13 carbon atoms and Me 'denotes a sodium ion

13.5 wt. parts of the alkylbenzene sulfonate of the general formula R ^{(3 '} - (Ar) SO ₃ ') wherein R ⁽ ₃ ' ⁾ denotes alkyl having 11 carbon atoms and Me ⁺ denotes sodium ion

11.25 wt. parts of sodium acetate

Example 3

For the preparation of 1 liter of proposed emulsifying oil:

360 parts by volume of n-amyl acetate

247.5 parts by volume of n-propyl propionate

112.5 parts by volume of ethyl benzoate

112.5 parts by volume of n-octyl alcohol wt. of ethoxylated nonvlfenolu CQHi9 formula -Ar-O- (C ₂ H | O) _H H wherein the index /? is equal to 9

7.5 wt. parts alkylsuJfatu general formula -OSO ₃ R ^UJ .Meý in which R ⁽² 'denotes allyl atoms of carbon 14, and Me ⁺ represents a sodium ion

19.5 wt. parts of an alkylbenzene sulfonate of the formula R ^0, - (Ar) SO ₃ '.Me ⁺ , in which R ^<3) denotes an alkyl of 11 carbon atoms, and Me ⁺ denotes a sodium ion

11.25 game. parts of sodium acetate ice, · · · · · · · ·

For the preparation of 1 cast iron of the proposed emulsifying oil:

360 parts by volume of n-butyl acetate

180 parts by volume of ethyl butyrate

202.5 parts by weight of n-butylbenzoate parts by weight of n-octyl alcohol wt. parts of the ethosylated nonylphenol of the formula C ₉ H ₁₉ -Ar-O- (C 2 H 4 O 1 H), where n is 9

10.8 wt. wherein R ^<2) denotes an alkyl having a carbon number of 12, and Me ⁺ denotes a sodium ion

16.2 wt. parts of an alkylbenzene sulfonate of the formula R 1 -Ar 1 SO 2 -Me ', wherein R ^v ' denotes an alkyl having a carbon number of 12, and Me denotes a sodium ion

11.25 wt. parts of sodium acetate

Example 5

For the preparation of 1 liter of proposed emulsifying oil:

337.5 ohj. parts of n-amyl acetate

225 parts by volume of ethyl butyrate

180 parts by weight of methylbenzoal parts by weight of n-okly (alcohol by weight by weight of ethoxylated nonylphenol of the general formula (ΜΙΜΙ-ττ-ΟΟΙ ,, ,,ΙΙ)), where the index o is equal to 10

10.8 wt. parts of an alkyl sulphate of the general formula R ⁽²⁾ -OSO ₃ '.Me ⁺ , in which R ⁽²⁾ is an alkyl having a number of carbon atoms of 14, and Me ⁺ is a sodium ion

16.2 wt. parts of alkylbenzene sulfonates having formula R ⁽³⁾ - (Ar) ₃ .Me SO ⁺ wherein R ⁽³⁾ denotes alkyl having a carbon number of 13, and Me ⁺ denotes a sodium ion

11.25 wt. parts of sodium acetate

The decontamination emulsion containing the emulsifying oil of the present invention provides the following benefits for detoxification and disinfection techniques:

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With the required efficiency, it eliminates all types of potentially usable toxic substances and biological agents on real surfaces of the technique, incl. surfaces and materials which are not resistant to the penetration of toxic substances into their structure;

- in a practical comparison of the detoxification and disinfection efficiency of the decontamination emulsion with standard mixtures, ie the hypochlorite or detergent mixtures ODS-4 and ODS-5, introduced into use in the Army of the Czech Republic, . 1,2,2-trimethylpropylmethylphosphonofluoridate, S-2-disopropylammoethyl-Oethylphosphonothiolate, bis (2-chloroethyl) sulfide were used as test toxicants. Staphylococcus aureus Mau 43/60, Escherichia coli Ec 324/70, Pseudomonas aeruginosa Ps 79/70, Proteus vulgaris 9/46, Bacillus subtilis 4/42 and Candida albicans 49/64 were used as test microorganisms.

Under standard test conditions, using the mixture, the required values for permissible residual contamination of the external surfaces of the technique were achieved.

Industrial applicability

The invention can be used in a variety of areas, such as military, agriculture, transport construction, environmental protection, and wherever an emulsion decontamination composition is required for decontamination, surfaces of objects that are dangerously contaminated with toxic substances and biological agents. Its use will be advantageous in those. applications in which the use of those agents containing biodegradable aromatic hydrocarbons is not acceptable for environmental reasons.

Claims (1)

1. An emulsifying oil comprising 9 to 16 parts by volume of n-butyl acetate or n-amyl acetate, 8 to 14 parts by volume of ethyl butyrate or n-propylpropionate or n-butylpropionate, and 3 to 5 parts by volume. n-octyl alcohol, 5 to 10 parts by volume of methyl benzoate or ethyl benzoate or n-propyl benzoate or n-butyl benzoate, 4 parts by weight of the ethoxylated nonyl phenol of the formula C ₉ H ₉ ArO (C ₂ H ₁₄ O) _n H where n is nine to ten; 0.35 to 0.6 parts by weight of alkyl sulfate of the formula R ⁽²⁾ -OSO ₃ '.Me ⁺ wherein R ⁰⁾ is alkyl of carbon numbers 12 to 14, and Me ⁺ represents a sodium ion, 0.6 to 0.9 parts by weight alkylbenzensulfonaiu general formula R ArjSOý.Meý wherein ^{R! 3)} denotes alkyl of a carbon number aiomů 11 to 13, and Me ⁺ represents a sodium ion, 11.25 pbw of sodium acetate.