PL143709B1 - Cooling fluid and method of obtaining it - Google Patents

Cooling fluid and method of obtaining it Download PDF

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Publication number
PL143709B1
PL143709B1 PL1984250721A PL25072184A PL143709B1 PL 143709 B1 PL143709 B1 PL 143709B1 PL 1984250721 A PL1984250721 A PL 1984250721A PL 25072184 A PL25072184 A PL 25072184A PL 143709 B1 PL143709 B1 PL 143709B1
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weight
parts
corrosion inhibitors
dissolved
hard water
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PL1984250721A
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Polish (pl)
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PL250721A1 (en
Inventor
Stanislaw Glados
Jozef Hensel
Ryszard Kalinowski
Karol Nowak
Konrad Jaskola
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Przed Chemii Gospodarczej Prod
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Priority to PL1984250721A priority Critical patent/PL143709B1/en
Publication of PL250721A1 publication Critical patent/PL250721A1/en
Publication of PL143709B1 publication Critical patent/PL143709B1/en
Priority to DE3841062A priority patent/DE3841062A1/en

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/20Antifreeze additives therefor, e.g. for radiator liquids
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Description

Przedmiotem wynalazku jest plyn chlodniczy i sposób wytwarzania plynu chlodniczego, stosowa¬ nego w chlodnicach samochodowych oraz do chlo^ dzemia wszelkiego typu silników spalinowych wy¬ posazonych w chlodnice wodne, odznaczajacy sie niska temperatura krzepniecia*. Moze on równiez znalezc zastosowanie jako ciecz hydrauliczna oraz nosnik ciepla, w ukladach centralnego ogrzewa¬ nia.Znane plyny do chlodnic samochodowych opar¬ te sa glównie o gliknl etylenowy, glikole propy- lenowe i wielopropylenowe, poliglikole, alkohol izo- propylenowy i inne niskoczastectzkowe alkohole oksyeltylenowaine. Plyny te wytwarzane—sa ma ba¬ zie wody destylowanej, zawieraja ponadto dodat¬ ki przeciwkorozyjne i przeicdwpienne.Z polskdiego opisu patentowego nr 116 012 znane jest zastosowanie jako plynu chlodniczego 55—?65D/o roztworu wodnego pozostalosci po destylacji ete¬ rów etylenowych glikolu mono- i dwueitylenowego otrzymanych przez oksyetylacje alkoholu etylowe¬ go, przy --czym pozostalosc po destylacji zawiera. 45—55°/o wagowych eteru etylowego glikolu trój- etylenowego, 30—40*/< wagowych eterów etylowych wyzszych glikoli, 5—10% wagowych poliglikoli o ciezarze czasiteczkowym od 100—-1500, 3—5tyo war¬ gowych eteru etylowego glikolu dwuetylenowego z ewentualnym dodatkiem inhibitorów korozji me¬ tali.Znany jest równiez srodek o niskiej tempera- 10 15 20 25 30 turze zamarzania do chlodnic samochodowych z polskiego opisu patenitowego nr 103 256 zawieraja¬ cy w swoim skladzie 40—60!tyo wagowych miesza¬ niny glikoli monopropylenowego, dwupropylenowe- go i etylenowego, Ibadz mieszaniny glikoli etyle¬ nowego i propylenowego, badz tez mieszaniny gli¬ koli etylenowego i dwupropylenowego, 0,25^2 czes¬ ci wagowych fosforami dwusodowego, 0,15—0,5 cze¬ sci wagowych dekstryny, 0,005—0,01 czesci wagoi- wych 2-merkaptobenzotiazolu, 0,003—0,01 czesci wa¬ gowych trójetanoloaminy, 0,Z—2 czesci wagowych boraksu, 0,0002—0,2 czesci wagowych barwnika, flu- orosiceiny oraz 40—60 czesci wagowych deminerai- lizowanej wody.Natomiastw ipolskta opisie patentowym nr 112 106 ujawniono sposób wytwarzania plynu do chlodnic samochodowych polegajacy na tym, ze w 40—60 czesciach wagowych glikolu monopropylenowego, ogrzanegoi do temp. 343—353 K rozpuszcza sie 0,5— —2,5 czesci wagowych boraksu, podczas ciaglego mieszania wprowadza sie 0—10 czesci wagowych glikolu dwiupnopylenowego, a nastepnie kolejno: roztwór zawierajacy 0^05—0,20 czesci wagowych ortofosforanu dwusodowego w 10—15 czesci wa¬ gowych wody, mieszanine zlozona z 0,001—0,015 czesci wagowych soli sodowej tnerkaptoibenzotia- zolu, 0,10—0,30 czesci wagowych aniliny i 0,05—0,25 czesci wagowych trójetanoloaminy, z kolei roztwór 0,001—0,5 czesci wagowych dyspersji silikonowej w 5—10 czesci wagowych wody oraz roztwór spo- 143 7093 143*709^- 4 rzadzony przez rozpuszczenie 0,05—0,25 czesci wa¬ gowych zelatyny'w 6—12 czesciach wagowych wo-. dy q temp. 323—373 K po czym uzupelniia siie bra¬ kujaca do 100 czesci wagowych iloscia wody i ca¬ losc miesza w temp. 283—353 K do uzyskania jednorodnego, klarownego roztworu.Znane plyny do chlodnic samochodowych chai- rakteryzuja sie dostatecznie'niska temperatura za¬ marzania umozliwiajaca ich bezpieczne stosowanie w warunkach ujemnych temperatur otoczenia oraz nie powoduja korozji metalowych czesci ukladów chlodniczych i pecznienia przewodów gumowych.Wada tych plynów jest to, ze do ich wytwarzania' niezbedne sa surowce importowane oraz zastoso¬ wanie wody destylowanej i srodków przeciwpiem- nych, co w znacznym stopniu utrudnia proces wy-' twamzania.Celem wynalazku jest opracowanie plynu chlod¬ niczego do chlodnic samochodowych, który spel¬ nialby wszystkie wymagania od tego typu srod¬ ków, przy jednoczesnym uproszczeniu procesu wy¬ twarzania i eliminacji srodków przeoiwpienych.Stwierdzono", ze plyn chlodniczy wedlug wyna¬ lazku oparty o dwuglikol jako produkt uboczny, powsitadaicy w procesie produkcji monoglikolu oraz o~ wode twarda jest plynem o bardzo dobrych parametrach wymaganych od tego rodzaju plynów.Plyn chlodniczy wedlug wynalazku zawiera 57— —60% wagowych glikolu dwuetylenowego, 38—42% wagowych wody twardej z dodatkiem 0,03—0,04% wagowych kompieksonu oraz 0,0005—0,001% wa¬ gowych barwnika, 1,1—2,3% wagowych inhibito¬ rów korozji i 0,48—0,-63% wagowych skladnika bu¬ forujacego spelniajacego jednoczesnie role dodatko¬ wego inhibitora korozji.Sposób wytwarzania plynu chlodniczego wedlug wynalazku polega na tym, vze 0,005—0,015% war¬ gowych 2nmie^kap1x)ibenzotiazolu rozpuszcza sie w 0,05^0,15% wagowych trójetanoloaminy, a pozo¬ stale inhibitory korozji w ilosci 1,05—2,1% wago¬ wych rozpuszcza sie w 38—42% wagowych wody twardej z dodatkiem 0,03—0,045% wagowych kom¬ pieksonu i 0,0005—0,001% wagowych barwnika, po ozym tak przygotowane skladniki miesza sie w mieszalniku z 57^60% wagowych glikolu dwuety¬ lenowego aiz do otrzymania jednorodnego roztwo¬ ru, a nastepnie dodaje sie 0,48—0,63% wagowych skladnika buforujacego, m. in. kwasu fosforowego i ponownie miesza. Wszystkie operacje wykonuje sie w zakresie temperatur od 10--80oC /28S—353 KA Plyn chlodniczy wedlug wynalazku oparty na dwuglikolu i wytwarzany na bazie wody twar¬ dej yiwodociagowej/ jakosciowo w niczym nie u- stejpuje dotychczas wytwarzanymi i stosowanym plynom chlodniczym, przy czym proces wytwarza¬ nia tego plynu jiest znacznie prostszy i laitwiejszy, a ponadto fakt stosowania wody twardej umozli¬ wia pominiecia w skladzie recepturiowym srodków przeciwpiennych oraz ulatwia warunki jego eks¬ ploatacji.Plyn chlodniczy i sposób jego wytwarzania we¬ dlug wynalazku obrazuja nizej podane przyklady wykonania1: DN-3, Przyklad I. Plyn chlodniczy sklada sie z gli¬ kolu dwuetylenowego w ilosci 58% wagowych, wo¬ dy twardej ;1wotdociagowej/ w ilosci 39,78% wa¬ gowych, boraksu w ilosci 1,5% wagowych, trój- a etanoloaminy w ilosci 0,1% wagowych, 2-merkap- l^ibenzotiazolu w ilosci 0,01% wagowych, dekstry¬ ny w ilosci 0,05% wagowych, fluoresceiny w ilo¬ sci 0,0005% wagowych, kompieksonu — wersenia- nu dwusodowego w ilosci 0,0374°/© wagowych oraz w 85 procentowego kwasu fosforowego w ilosci 0,52% wagowych.Przyklad II. Sposób wytwarzania plynu chlod¬ niczego polega na tym, ze w 39,78% wagowych wody twardej rozpuszcza sie 0,0374% wagowych 15 kompieksonu, a nastepnie 1,5% wagowych bora¬ ksu, 0,05% wagowych dekstryny i 0,0005% wago¬ wych fluoresceiny natomiast 2-merkaptoibenzotia- zol w ilosci 0,01% wagowych rozpuszcza sie w1 0,1% wagowych trójetanoloaminy. Tak przygoto- 20 wane skladniki wlewa sie do mieszalnika! z za¬ wartoscia 58% wagowych glikolu dwuetylenowego i milesza az do otrzymania jednorodnego roztwo¬ ru, po czym dodaje sie 0,52% wagowych 85 pro^ centowego kwasu fosforowego i ponownie miesza.Wszystkie operacje wykonuje sie w zakresie tem¬ peratur od 10-h80°C /283—353 KA Tak otrzymany plyn chlodniczy charakteryzuje sie nastepujacymi parametrami: temperatura krzep- 30 niecia = -^l5°C; gestosc = 1,093 g/cm8; tempe¬ ratura wrzenia = 112°C; wartosc pH = 8,0; wy¬ dzielanie osadów wg Harvestera wg IM BT — 2, mg. = 0,2.Zastrzezenia patentowe 1. Plyn chlodniczy zawierajacy skladniki obni¬ zajace temperature krzepniecia oraiz inhibitory ko- 40 rozji, znamienny tym, ze sklada sie z 57—60% wagowych glikolu dwuetylenowego, 38—42% wa¬ gowych wody twardej, 0,03—0,045% wagowych kom¬ pieksonu, 0,0005—0,001% wagowych fluoresceiny, 1,1—2,3% wagowych inhibitorów korozji i 0,48— 45 ^0,63% wagowych skladnika buforujacego spel¬ niajacego jednoczesnie role dodatkowego imhibiitora korozji. 2. Sposób wytwarzania plynu chloidniczego, zna¬ mienny tym, ze 0,005^0,015% wagowych 2-nier- 50 kaptobemzotiazoliu rozpuszcza "sie w 0,05—0,15% wagowych trójetanoloaminy, a pozostale inhibito¬ ry korozji w ilosci 1,05—2^1% wagowych rozpusz¬ cza sie w 38—42% wagowych wody twardej z dodatkiem 0,030—0,045% wagowych kompieksonu 55 i 0,0005^0,001% wagowych barwnika, po czym tak przygotowane skladniki wlewa sie do mieszalni¬ ka z zawartoscia 57^60% wagowych glikolu dwu¬ etylenowego i miesza az do otrzymania jednorod¬ nego roztworu, a nastepnie dodaje sie 0,48—0,63% 60 wagowych skladnika buforujacego, takiego jak kwas fosforowy i ponownie miesza, przy czym wszystkie operacje wykonuje sie w zakresie tem¬ peratur 283—353 K. zam. 69/88 % 130 zl PLThe present invention relates to a refrigerant fluid and a method for the production of a refrigerant fluid used in automotive radiators and in the cooling of all types of internal combustion engines equipped with water coolers, characterized by a low freezing point. It can also be used as a hydraulic fluid and a heat carrier, in central heating systems. Known car radiator fluids are based mainly on ethylene glycol, propylene and polypropylene glycols, polyglycols, isopropylene alcohol and other low-tensile alcohols. oxyeltylenate. These liquids are produced on the basis of distilled water, and also contain anticorrosive and anti-foam additives. Polish patent specification No. 116 012 describes the use of 55 to 65% of an aqueous solution of the residue after distillation of ethylene glycol ethers as coolant. mono- and di-ethylene alcohol obtained by ethoxylation of ethyl alcohol, with the residue after distillation containing. 45-55% by weight of ethyl ether of triethylene glycol, 30-40% by weight of diethyl ethers of higher glycols, 5-10% by weight of polyglycols with a weighting of 100-1500, 3 to 5 lips of glycol diethyl ether of diethylene with the optional addition of metal corrosion inhibitors. A low-freezing agent for car radiators is also known from the Polish patent specification No. 103,256, containing 40-60% by weight of a mixture monopropylene, dipropylene and ethylene glycols, or mixtures of ethylene and propylene glycols, or mixtures of ethylene and dipropylene glycols, 0.25-2 parts by weight with disodium phosphorus, 0.15-0.5 parts by weight of dextrin, 0.005-0.01 parts by weight of 2-mercaptobenzothiazole, 0.003-0.01 parts by weight of triethanolamine, 0, Z-2 parts by weight of borax, 0.0002-0.2 parts by weight of the dye, fluorosicein and 40-60 parts by weight of demineralized water On the other hand, Polish patent specification No. 112 106 discloses a method of producing a car radiator fluid, which consists in the fact that in 40-60 parts by weight of monopropylene glycol, heated to the temperature of 343-353 K, 0.5-2.5 parts by weight are dissolved. of borax, while continuously stirring, 0-10 parts by weight of diphenylene glycol are introduced, and then successively: a solution containing 0.05-0.20 parts by weight of disodium orthophosphate in 10-15 parts by weight of water, a mixture of 0.001-0.015 parts by weight sodium salt of nitricaptoibenzothiazol, 0.10-0.30 parts by weight of aniline and 0.05-0.25 parts by weight of triethanolamine, a solution of 0.001-0.5 parts by weight of a silicone dispersion in 5-10 parts by weight of water and a - 143 7093 143 * 709% - 4 by dissolving 0.05 to 0.25 parts by weight of gelatin in 6 to 12 parts by weight of water. dye q temp. 323-373 K, then it is supplemented with up to 100 parts by weight of the amount of water and the whole is mixed at 283-353 K until a homogeneous, clear solution is obtained. Known car radiator fluids are sufficiently characterized by sufficient 'low freezing temperature enabling their safe use in conditions of negative ambient temperatures and does not cause corrosion of metal parts of refrigeration systems and no swelling of rubber pipes. The disadvantage of these fluids is that their production requires imported raw materials and the use of distilled and The aim of the present invention is to develop a car radiator coolant that meets all the requirements of anti-fogging agents, while simplifying the production and elimination of antifreezes. It was found "that a refrigerant fluid according to the invention based on diglycol as a by-product, in the production of monoglycol and hard water, it is a fluid with very good parameters required for this type of fluid. The coolant according to the invention contains 57-60% by weight of diethylene glycol, 38-42% by weight of hard water with the addition of 0.03-0, 04% by weight of the composite and 0.0005-0.001% by weight of the dye, 1.1-2.3% by weight of corrosion inhibitors and 0.48-0. -63% by weight of the buffering component, which also serves as an additional The method of producing the coolant according to the invention is based on the fact that 0.005-0.015% of the lips are dissolved in 0.05-0.15% by weight of triethanolamine, and the remaining corrosion inhibitors in the amount of 1 05-2.1% by weight is dissolved in 38-42% by weight of hard water with the addition of 0.03-0.045% by weight of compoxone and 0.0005-0.001% by weight of the dye, then the ingredients thus prepared are mixed in a mixer from 57 to 60% by weight of diethylene glycol until a homogeneous solution is obtained, and then 0.48-0.63% by weight of the buffering component is added eagerly, including phosphoric acid and mixed again. All operations are carried out in the temperature range from 10-80 ° C / 28S-353 KA The refrigerating fluid according to the invention is based on diglycol and produced on the basis of hard and tap water (in terms of quality, it is in no way comparable to the previously produced and used cooling liquids, but the process of producing this fluid is much simpler and easier, and moreover, the fact of using hard water makes it possible to omit anti-foaming agents in the formulation composition and facilitates the conditions for its operation. : DN-3, Example I. The refrigerant consists of 58% by weight diethylene glycol, hard water, 39.78% by weight, borax, 1.5% by weight, three - a ethanolamine in the amount of 0.1% by weight, 2-mercap- and benzothiazole in the amount of 0.01% by weight, dextrins in the amount of 0.05% by weight, fluorescein in the amount of 0.0005% by weight, of complexone - versa - disodium nun at 0.0374% by weight and 85 percent phosphoric acid at 0.52% by weight. Example II. The method of producing the coolant consists in dissolving in 39.78% by weight of hard water 0.0374% by weight of complexone, then 1.5% by weight of borox, 0.05% by weight of dextrin and 0.0005 % by weight of fluorescein, while 0.01% by weight of 2-mercaptoibenzothiazole is dissolved in 0.1% by weight of triethanolamine. The ingredients prepared in this way are poured into the mixer! with 58% by weight of diethylene glycol and mils until a homogeneous solution is obtained, then 0.52% by weight of 85% phosphoric acid is added and mixed again. All operations are carried out in the temperature range from 10 ° C. h80 ° C / 283—353 KA The refrigerant fluid thus obtained is characterized by the following parameters: freezing point = - ^ 15 ° C; density = 1.093 g / cm8; boiling point = 112 ° C .; pH value = 8.0; sludge separation according to Harvester according to IM BT - 2, mg. = 0.2. Patent claims 1. Coolant containing freezing point depressants and corrosion inhibitors, characterized in that it consists of 57-60% by weight of diethylene glycol, 38-42% by weight of hard water, 0.03-0.045% by weight of complexone, 0.0005-0.001% by weight of fluorescein, 1.1-2.3% by weight of corrosion inhibitors, and 0.48-45 to 0.63% by weight of the buffer component acting simultaneously as additional corrosion inhibitor. 2. A method of producing a chlorine fluid, characterized by that 0.005 to 0.015% by weight of 2-capobemzothiazole is dissolved in 0.05-0.15% by weight of triethanolamine, and the remaining corrosion inhibitors in an amount of 1.05. -2-1% by weight is dissolved in 38-42% by weight of hard water with the addition of 0.030-0.045% by weight of composite 55 and 0.0005-0.001% by weight of the dye, and then the ingredients prepared in this way are poured into a mixer with the contents of 57 to 60% by weight of diethylene glycol and mixed until a homogeneous solution is obtained, then 0.48-0.63% by weight of a buffer component such as phosphoric acid is added and mixed again, all operations being carried out in the temperature range 283-353 K order 69/88% 130 PLN PL

Claims (2)

Zastrzezenia patentowe 1. Plyn chlodniczy zawierajacy skladniki obni¬ zajace temperature krzepniecia oraiz inhibitory ko- 40 rozji, znamienny tym, ze sklada sie z 57—60% wagowych glikolu dwuetylenowego, 38—42% wa¬ gowych wody twardej, 0,03—0,045% wagowych kom¬ pieksonu, 0,0005—0,001% wagowych fluoresceiny, 1,1—2,3% wagowych inhibitorów korozji i 0,48— 45 ^0,63% wagowych skladnika buforujacego spel¬ niajacego jednoczesnie role dodatkowego imhibiitora korozji.Claims 1. Cooling fluid containing freezing point depressants and corrosion inhibitors, characterized in that it consists of 57-60% by weight of diethylene glycol, 38-42% by weight of hard water, 0.03-0.045 % by weight of comapone, 0.0005 to 0.001% by weight of fluorescein, 1.1-2.3% by weight of corrosion inhibitors and 0.48 to 45 to 0.63% by weight of a buffer component which also acts as an additional corrosion inhibitor. 2. Sposób wytwarzania plynu chloidniczego, zna¬ mienny tym, ze 0,005^0,015% wagowych 2-nier- 50 kaptobemzotiazoliu rozpuszcza "sie w 0,05—0,15% wagowych trójetanoloaminy, a pozostale inhibito¬ ry korozji w ilosci 1,05—2^1% wagowych rozpusz¬ cza sie w 38—42% wagowych wody twardej z dodatkiem 0,030—0,045% wagowych kompieksonu 55 i 0,0005^0,001% wagowych barwnika, po czym tak przygotowane skladniki wlewa sie do mieszalni¬ ka z zawartoscia 57^60% wagowych glikolu dwu¬ etylenowego i miesza az do otrzymania jednorod¬ nego roztworu, a nastepnie dodaje sie 0,48—0,63% 60 wagowych skladnika buforujacego, takiego jak kwas fosforowy i ponownie miesza, przy czym wszystkie operacje wykonuje sie w zakresie tem¬ peratur 283—353 K. zam. 69/88 % 130 zl PL2. A method of producing a chlorine fluid, characterized by that 0.005 to 0.015% by weight of 2-capobemzothiazole is dissolved in 0.05-0.15% by weight of triethanolamine, and the remaining corrosion inhibitors in an amount of 1.05. -2-1% by weight is dissolved in 38-42% by weight of hard water with the addition of 0.030-0.045% by weight of composite 55 and 0.0005-0.001% by weight of the dye, and then the ingredients prepared in this way are poured into a mixer with the contents of 57 to 60% by weight of diethylene glycol and mixed until a homogeneous solution is obtained, then 0.48-0.63% by weight of a buffer component such as phosphoric acid is added and mixed again, all operations being carried out in the temperature range 283-353 K order 69/88% 130 PLN PL
PL1984250721A 1984-12-03 1984-12-03 Cooling fluid and method of obtaining it PL143709B1 (en)

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Application Number Priority Date Filing Date Title
PL1984250721A PL143709B1 (en) 1984-12-03 1984-12-03 Cooling fluid and method of obtaining it
DE3841062A DE3841062A1 (en) 1984-12-03 1988-12-07 Coolant

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PL1984250721A PL143709B1 (en) 1984-12-03 1984-12-03 Cooling fluid and method of obtaining it
DE3841062A DE3841062A1 (en) 1984-12-03 1988-12-07 Coolant

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PL250721A1 PL250721A1 (en) 1986-06-17
PL143709B1 true PL143709B1 (en) 1988-03-31

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CN104592951A (en) * 2014-12-24 2015-05-06 中国人民解放军空军油料研究所 Preparation method of aviation cooling liquid
CN104610933A (en) * 2014-12-24 2015-05-13 中国人民解放军空军油料研究所 An aviation cooling liquid

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06116764A (en) * 1992-10-07 1994-04-26 Echiren Chem Kk Antifreeze composition

Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN104592951A (en) * 2014-12-24 2015-05-06 中国人民解放军空军油料研究所 Preparation method of aviation cooling liquid
CN104610933A (en) * 2014-12-24 2015-05-13 中国人民解放军空军油料研究所 An aviation cooling liquid
CN104592951B (en) * 2014-12-24 2018-05-08 中国人民解放军空军油料研究所 A kind of preparation method of aviation coolant
CN104610933B (en) * 2014-12-24 2018-05-08 中国人民解放军空军油料研究所 A kind of aviation coolant

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