(57) Abstract:Usage: to prevent icing of surfaces of airplanes, ships and other objects. The inventive composition further comprises a gel-like polyethylene oxide, obtained by irradiation of an aqueous solution of polyethylene oxide. The composition contains, wt%: propylene glycol 50-55, water 42-48, gel-like polyethylene oxide 0,2-3,0, surfactant is ethoxylated op, the controller pH of 1.5. Technical result: the creation of the anti-icing composition with easily obtainable and relatively cheap thickener, providing reliable protection of surfaces satisfying the requirements of the current regulations to the characteristics of runoff and enable its application on a protected surface with the aid of the ordinary means of sputtering. The invention relates to anti-icing compositions based on glycols and water, used to prevent icing of surfaces of airplanes, ships and other objects.Known anti-icing compositions based on glycols and water.For example, in the United Kingdom patent 1026150, IPC C 09 K 3/18, 1966, described protivoobledinitelnoy as surfactants and corrosion inhibitors.The main disadvantage of known composition - a little while protecting the surface from freezing is due to its low viscosity.With the aim of increasing the viscosity and a corresponding increase in protection time period of heat exchange surfaces from freezing in the compositions added thickeners. The most widely as a thickening agent used is a water-soluble structured acripolymer, see, for example, U.S. patents 4358389, IPC C 09 K 3/18, 1982 and EP 0231869, IPC C 09 K 3/18, 1988These high viscosity compositions have good adhesion with the aerodynamic surfaces of the aircraft and provide an acceptable practice for the protection of surfaces from freezing, but at the same time, their fluidity under the forces of wind shear at take-off speed of the plane is almost not changed and remains fairly low, so the characteristics of runoff is known compositions do not satisfy the requirements of the practice.In addition, due to the high viscosity of compositions containing a known thickeners, for pumping and spraying requires expensive equipment.Known anti-icing composition but the U.S. patent 5817252, IPC C 09 K 3/18, 1998, soinali) 0,18, thickener (polycarboxylate) 0,184 and pH regulator (the hydroxides of alkali metals).This composition provides sufficient long-term protection of surfaces from freezing, but its rheological characteristics do not meet the requirements for de-icing compositions. Also used in a known structure as a thickener structured polycarboxylate get through a complex multistage reactions.Thus, currently known anti-icing compositions according to its technical characteristics are far from ideal that encourages work on their improvement, mainly due to the receipt of new types of thickeners.The present invention is the creation of a de-icing composition with easily obtainable and relatively cheap thickener, providing reliable protection of surfaces satisfying the requirements of the current regulations to the characteristics of runoff and enable its application on a protected surface with the aid of the ordinary means of sputtering.This task is solved in that the de-icing composition containing about what asny polyethyleneoxide, obtained by irradiation of an aqueous solution of polyethylene oxide.As surface-active substances are used, for example, the ethoxylated octyl - and nonylphenols, pH regulator are potassium hydroxide, ammonium phosphate.Named parts (components) contained in the anti-icing composition in the following weight ratios, %:
Propylene glycol - 50-55
Water - 42-49
Gel-like polyethylene oxide - 0,2-3,0
Else - 1,5
The proposed anti-icing composition through the use of a new type of thickener - gel polyethylene oxide has distinct properties of non-Newtonian fluids at low shear rates (static position of the aircraft) has a higher viscosity (10000-20000 SP/cm), at high shear rates (during the spraying process and at the takeoff speed of the plane) is a small viscosity.Thus, the claimed anti-icing composition provides regulated by ISO 11078 time protect the surface from freezing.In addition, the low viscosity anti-icing composition at high shear rates allows to execute processing for the x terms on the aircraft simulators planes - dural plates length 240 cm, width of 40 cm and a thickness of 2 mm, installed at an angle of 15orelative to the horizon.In the process of testing the above simulators were cooled to a temperature of minus 10oFrom then on their surface was applied subjects PIC. Measured the length of time between application of the composition and the beginning of the freezing surfaces imitators (the defense). The temperature during the entire time of the test was maintained at minus 10oC, humidity 70%.Tested two types of SETTLEMENT.1. The inventive composition 1, containing the weight. %: propylene glycol 50, water 47, gel-like polyethylene oxide of 1.5, a surfactant, a pH regulator 1,5.2. The inventive composition 2 containing the weight. %: 51 propylene glycol, water 46,5, gel-like polyethylene oxide 1,0, a surfactant, a pH regulator 1,5.Test results time anti-icing was 2.8 h and 3.0 h, respectively, for compounds 1 and 2.Known anti-icing means, such as regular anti-icing fluid "CLARIANT" protects surfaces from freezing within 2 hoursIn addition, testing of salestax.The test results are considered satisfactory. Anti-icing composition comprising propylene glycol, water, surfactant, which is used as ethoxylated op, and a pH Adjuster, characterized in that it further comprises a gel-like polyethylene oxide, obtained by irradiation of an aqueous solution of polyethylene oxide, in the following ratio, wt.%:Propylene glycol 50-55Water 42-48Gel-like polyethylene oxide 0,2-3,0Surface-active agent and a pH Adjuster 1,5
FIELD: road servicing industry.
SUBSTANCE: the invention is dealt with the road servicing industry, in particular with the methods of extirpation of ice covering on motorways, bridges, flyovers, and also aerodromes. The method of the roadway covering slipperiness prevention provides for application of a roadway ice covering suppressing reactant based on acetate, in the capacity of which use a solution with pH=7-9.5, containing components in the following ratio (in mass %): magnesium acetate 13-17, potassium acetate 8-16, potassium hydrocarbonate 5-8, potassium carbonate 2-6, water-insoluble impurities 0-6, water - the rest. The roadway ice covering suppressing reactant may additionally contain a fired limestone in amount of 3-5 mass % in terms of calcium oxide. The method of production a roadway ice cover suppressing reactant for a roadway covering slipperiness prevention provides for mixing of a component containing a magnesium compound, iced acetic acid and water, in the capacity of the component containing the magnesium compound is used brucite, the stirring is exercised in two stages: first they continuously agitate brucite with water and a part of iced acetic acid in a stoichiometric ratio at the temperature of 50-70°C within 50-80 minutes, then, not terminating mixing at the same temperature in the produced mix with pH=5-6 add the rest of ice acetic acid and then add potash in amount exceeding by 0.1 - 6 % the stoichiometric ratio and continue agitation till production of the roadway ice cover suppressing reactant - a solution with pH = 7-9.5 with the above indicated composition. The used roadway ice cover suppressing reactant has composition mentioned above. The technical result consists in - maintenance of the low temperature at the reactant usage, ensuring the passing ice covered roadways motor vehicles metal corrosion protection and at use as the airfield runways coatings - the corrosion protection of metals used in aircraft designs as well. The roadway coating treated with the reactant has a high coefficient of adhesion, that reduces the accident rate on the roadways.
EFFECT: the invention ensures, that the roadway coating treated with the reactant decreases the accident rate on the roadways.
6 cl, 2 tbl, 4 ex
FIELD: chemical industry.
SUBSTANCE: invention relates to preparations used for prevention and removal of snow-ice formations in roads. An anti-glaze of ice preparation comprises the following components, wt.-%: calcium chloride, 15-50; sodium chloride, 48.5-83.5; potassium ferricyanide, 0.2-0.5, and sodium dihydrogen phosphate, 0.3-1.0. Anti-glaze of ice preparation in granulated form is resistant against caking, inhibits corrosion of metals and reduces inhibitory effect of chloride on plants.
EFFECT: improved and valuable properties of preparation.
FIELD: special reagents.
SUBSTANCE: invention relates to substances for applying on surface to prevent or diminish adhering ice, mist or water on it, for prevention of icing, in particular, to anti-glaze of ice reagents. The composite comprises the following components, wt.-%: calcium chloride, 25-32; urea, 2-7; sodium nitrite, 0.03-1.0, and water, the balance. Invention provides preparing the composite harmless for environment that doesn't show harmful effect on environment, doesn't corrode road coatings, and inhibits corrosion of metals. Agent shows economy and high effectiveness.
EFFECT: improved and valuable properties of reagent.
2 cl, 1 tbl
FIELD: road-transport industry.
SUBSTANCE: method includes applying substance on asphalt-concrete mixture. As substance silicon-organic modifier is used, loss of which at 1 m2 of area of pre-placed on road asphalt-concrete mixture at temperature 80-100°C is no less than 0,3-0,5 kg. After applying modifier, asphalt-concrete mixture is rolled.
EFFECT: higher efficiency, no corrosive effect on metals, effective at temperature above -20°C.
2 cl, 3 tbl, 3 ex, 1 dwg
FIELD: domestic chemistry.
SUBSTANCE: invention relates to agents using against misting and icing windshields in transports, sight glasses in agent of individual protection and can be used in living conditions for prevention showcase glasses icing. The composition comprises the following components, wt.-%: polyoxyethylene glycol ester of synthetic primary higher alcohols of (C12-C14)-fraction as a surface-active substance, 6-25; urea or thiourea, or mixture of urea and thiourea, 1-20; glycerol, 5-25; ethylene glycol, 5-41; dye, 0.0005-0.02, and a solvent, the balance. Propyl alcohol as propanol-1 or propanol-2 can be used as a solvent. The composition elicits an anti-misting and anti-icing properties, provides two-sided protection of sight glasses of transport agents and agents of individual protection in cooling the protecting glass surface up to -40°C, elicits the prolonged protective effect, it doesn't solidify at the environment temperature below -40°C and doesn't require the special technical devices for its applying.
EFFECT: valuable properties of composition.
3 cl, 1 tbl, 10 ex
FIELD: Composition of an anti-icing water solution for roads surface treatment.
SUBSTANCE: the invention is pertaining to production of composition of an anti-icing water solution for roads surface treatment against a winter slipperiness (snow rolling-ups, a glaze ice, black ice) n the roads and streets in cities and settlements. The composition contains, in mass %: 20-27 calcium chloride, 5-30 ethyl alcohol, 0.3-5 corrosion inhibitors (borax or sodium nitrite or their mixture), the rest - water. The technical result is - an increase of effectiveness of the composition application, an increase of friction coefficient due to a decrease of the ice density, a raise of the composition ice melting capacity.
EFFECT: the invention ensures an increase of effectiveness of the composition application, an increased friction coefficient and a decreased ice density, a raise of the composition ice melting capacity.
1 cl, 1 ex, 2 tbl
FIELD: materials for miscellaneous applications.
SUBSTANCE: grain mixture comprise, in mass %, 15-45% of compressed first salt of alkaline or alkaline-earth metal and 85-55% of the second salt of alkaline or alkaline-earth metal. The first salt is a waterless hygroscopic salt.
EFFECT: reduced cost.
14 cl, 4 dwg
FIELD: preventive means against freezing and sticking of loose materials to walls of mining and transport equipment; prevention of dusting on interim roads, open-cut mining; protection of rolling stock against freezing and blowing-off of loose materials, coal and peat for example.
SUBSTANCE: preventive means is made in form of mixture of solvent and thickening additive of oil nature. Used as solvent are distillation residues of coke and by-product process and/or by-products of production of butadiene, isoprene, isobutylene, ethylene both independently and in mixture with distillation residues of production process of polymers, pyrolysis residues, benzene, styrene and distillation residues of production of butanol, isobutanol, 2-ethyl hexanol acid and 2-ethyl hexanol. Solvent may additionally contain gas oils of thermal and catalytic cracking and gas oils of coking process. Used as thickening additives are mineral and synthetic oils of all kinds, mixture of used oils, oil sludge, oil residues and oil fuel. Components of thickening additive and solvent are used at any combination. Novelty of invention is use of wastes of various processes of oil and petroleum chemistry products.
EFFECT: extended field of application; cut costs; enhanced ecological safety.
5 cl, 1 dwg, 2 tbl, 17 ex
FIELD: suppression or reduction of icing on surfaces by means of antiicing compounds.
SUBSTANCE: proposed anti-icing compounds contain succinic acid and/or succinic anhydride and neutralizing base, sodium hydroxide, potassium hydroxide or ammonium hydroxide in particular. When mixed with water anti-icing compounds form succinates in the course of reaction which causes fast liberation of heat sufficient for melting ice on surface. According to other versions, anti-icing compounds contain glycol which inhibits repeated icing on cleaned surface. Specification gives description of sets of compounds for melting snow and ice.
EFFECT: enhanced efficiency of melting snow and ice on aircraft and territories of their operation.
29 cl, 11 dwg, 7 tbl, 2 ex
FIELD: motor-car industry; other industries; methods of production of the anti-icing reactant.
SUBSTANCE: the invention is pertaining to the method of production of the anti-icing reactants for maintenance of roads in winter. The method of production of the anti-icing reactant based on sodium chloride and calcium chloride provides for mixing of the sodium chloride with calcium chloride and their heating and drying. Sodium chloride crystals are coated with the atomized solution of calcium chloride and dried in the "boiling bed" kiln with production of the double-layer granules, the outer layer of which is composed out of calcium chloride. Sodium chloride crystals are coated with calcium chloride in two phases. The forming small particles of calcium chloride are fed into the cyclone, whence the cyclone dust of the calcium chloride is fed into the mixer for intermixing with the wet crystals of sodium chloride. The produced anti-acing reactant has the improved physicochemical thermodynamic properties.
EFFECT: the invention ensures, that the produced anti-acing reactant has the improved physicochemical thermodynamic properties.
3 cl, 1 ex, 2 tbl