WO1996026255A1 - Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne - Google Patents

Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne Download PDF

Info

Publication number
WO1996026255A1
WO1996026255A1 PCT/FR1996/000273 FR9600273W WO9626255A1 WO 1996026255 A1 WO1996026255 A1 WO 1996026255A1 FR 9600273 W FR9600273 W FR 9600273W WO 9626255 A1 WO9626255 A1 WO 9626255A1
Authority
WO
WIPO (PCT)
Prior art keywords
cerium
fuel
compound
internal combustion
concentration
Prior art date
Application number
PCT/FR1996/000273
Other languages
English (en)
French (fr)
Inventor
Jacques Lemaire
Original Assignee
Rhone-Poulenc Chimie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhone-Poulenc Chimie filed Critical Rhone-Poulenc Chimie
Priority to EP96904885A priority Critical patent/EP0811047A1/fr
Priority to KR1019970705655A priority patent/KR19980702258A/ko
Priority to AU48821/96A priority patent/AU4882196A/en
Priority to BR9607117A priority patent/BR9607117A/pt
Priority to JP8525454A priority patent/JPH11500767A/ja
Publication of WO1996026255A1 publication Critical patent/WO1996026255A1/fr
Priority to MXPA/A/1997/006401A priority patent/MXPA97006401A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/04Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/30Organic compounds compounds not mentioned before (complexes)
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/08Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/04Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/12Inorganic compounds
    • C10L1/1233Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/16Hydrocarbons
    • C10L1/1616Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/188Carboxylic acids; metal salts thereof
    • C10L1/1881Carboxylic acids; metal salts thereof carboxylic group attached to an aliphatic carbon atom
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the present invention relates to a method of protecting internal combustion engines.
  • Another cause of degradation of the surfaces of the engine is due to the oxidation, sometimes selective, of the constituent metals of the alloys used, this is why another object of the present invention is to provide an additive which makes it possible to reduce the phenomena of oxidation on the surface of parts brought into contact with the combustion gases of a hydrocarbon fuel.
  • Another object of the present invention is to provide an additive of the above type which makes it possible to lighten the specifications weighing on the alloys constituting the moving parts of the engines.
  • an additive containing at least one Cerium compound for the protection of engines against wear and oxidation which compound is chosen to so that it is soluble or pseudo-soluble in liquid hydrocarbons and introduced into the fuel supplying the internal combustion engine at a concentration so as to form a solution, a sol, a suspension or an emulsion of a compound of Cerium and this at a concentration such that cerium is present in the said fuel at a concentration at least equal to 5, preferably 10 PPM (by mass).
  • pseudo-soiuble refers to suspensions or emulsions which, although not constituting solutions in the strict sense of the term, have sufficient stability in hydrocarbons that during the use of a full tank under conditions normal, no significant change in sensation or suspension takes place.
  • the concentration of Cerium in the fuel is between 10 and 500, preferably from 50 to 200 parts per million (by mass).
  • cerium III salts it is conceivable to obtain good protections from solutions of cerium III salts provided that the latter are stable in conventional fuels and in particular conventional gas oils. If one does not master the form in which they are shortly after their introduction into the fuel generally diesel, it is preferable to add the cerium compound at the last moment or in an extemporaneous manner.
  • cerium compound When said cerium compound is chosen from cerium IV compounds, it also has the advantage of being accessible at high concentration levels which reduces the size of the reservoir, which is necessary in the event of extemporaneous introduction. Thus it is possible to obtain a concentration of up to 15% in cerium frequently 20%, even 30%.
  • Another advantage of tetravalent compounds is greater stability than that of trivalents.
  • the good preferred protections are those obtained by combustion of a fuel, or fuel, (containing or not additives, such as diesel) containing at least one cerium IV compound (in the form of a sol or solution) such as for example those described in the European patent application filed in the name of the applicant under N * 83401 152.0.
  • the soils obtained by dilution preferably extemporaneous, in a fuel, or fuel of a concentrated soil (at least 15 to 20% of cerium oxide (CeO2)) in a fraction petroleum such as that sold under the brand Solvesso® 150 and stabilized by fatty acids from C15 to C25, preferably linear, such as oleic, linoiic and linolenic or stearic acids, the hydrodynamic size of the particles forming the soil being advantageously between 1 and 20 miilimicron.
  • a fuel or fuel of a concentrated soil (at least 15 to 20% of cerium oxide (CeO2)) in a fraction petroleum such as that sold under the brand Solvesso® 150 and stabilized by fatty acids from C15 to C25, preferably linear, such as oleic, linoiic and linolenic or stearic acids, the hydrodynamic size of the particles forming the soil being advantageously between 1 and 20 miilimicron.
  • the concentration of cerium in the fuel, and in particular diesel, is advantageously between 10 and 200 ppm, preferably between 50 and 150 ppm.
  • This technique of bringing Cerium into contact with the surface to be protected of an alloy can be transposed to other applications than that of engines, it makes it possible in particular to protect any surface brought into contact with a flame formed by a liquid hydrocarbon containing Cerium compounds, which are soluble or pseudo-soluble.
  • this protection can be acquired once and for all or renewed from time to time.
  • This protection is particularly sensitive and effective when applied to alloys containing a trivatent metal either of the chromium family or of the aluminum family, preferably chromium and aluminum.
  • Another object of the present invention is to provide a method of protecting motors.
  • Cerium is at least equal to 10 P.P.M.
  • the duration of the preconditioning of the engine must be such that the quantity of Cerium deemed to have passed through the engine is at least equal to 1, advantageously to 10 grams, preferably to 20 g per liter. displacement.
  • the duration of said conditioning can be modulated by varying the concentration of cerium in the fuel of the internal combustion engine.
  • concentration of cerium does not exceed 10 grams per liter, preferably 1 g per liter of fuel. If you want to condition the engine using conventional fuel, you must reach at least fifty hours, preferably one hundred hours, but preconditioning is in fact only normal operation during which the protection of the engine by cerium is little or not assured.
  • the wear performances were measured by the analysis of metallic traces in the oil used (here iron).
  • This test uses an Oldsmobile (1983) 4.3 V6 diesel engine under cyclic conditions for 130 hours.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Lubricants (AREA)
PCT/FR1996/000273 1995-02-24 1996-02-21 Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne WO1996026255A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP96904885A EP0811047A1 (fr) 1995-02-24 1996-02-21 Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne
KR1019970705655A KR19980702258A (ko) 1995-02-24 1996-02-21 내연 엔진 보호를 위한 세륨화합물의 용도
AU48821/96A AU4882196A (en) 1995-02-24 1996-02-21 Use of a cerium compound for protecting internal combustion engines
BR9607117A BR9607117A (pt) 1995-02-24 1996-02-21 Uso de um aditivo contendo pelo menos um composto de cério para a proteção de motores contra desgaste e oxidação e processo para proteção de motores
JP8525454A JPH11500767A (ja) 1995-02-24 1996-02-21 内燃機関を保護するためのセリウム化合物の使用
MXPA/A/1997/006401A MXPA97006401A (es) 1995-02-24 1997-08-21 Uso de un compuesto de cerio para la protección de motores de combustión interna

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9502158A FR2731009B1 (fr) 1995-02-24 1995-02-24 Procede de protection des moteurs a combustion interne et application de compose a base de cerium a la protection des moteurs contre l'usure et l'oxydation
FR95/02158 1995-02-24

Publications (1)

Publication Number Publication Date
WO1996026255A1 true WO1996026255A1 (fr) 1996-08-29

Family

ID=9476473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/000273 WO1996026255A1 (fr) 1995-02-24 1996-02-21 Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne

Country Status (10)

Country Link
EP (1) EP0811047A1 (zh)
JP (1) JPH11500767A (zh)
KR (1) KR19980702258A (zh)
CN (1) CN1176653A (zh)
AU (1) AU4882196A (zh)
BR (1) BR9607117A (zh)
CA (1) CA2211909A1 (zh)
FR (1) FR2731009B1 (zh)
HU (1) HUP9800072A3 (zh)
WO (1) WO1996026255A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044414A1 (en) * 1996-05-20 1997-11-27 Bp Chemicals (Additives) Limited Marine diesel process and fuel therefor
US7291217B2 (en) 2002-01-04 2007-11-06 University Of Dayton Non-toxic corrosion-protection pigments based on rare earth elements
US7422793B2 (en) 2002-01-04 2008-09-09 University Of Dayton Non-toxic corrosion-protection rinses and seals based on rare earth elements

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002339266A1 (en) 2001-10-10 2003-04-22 Dominique Bosteels Combustion process
WO2004033867A2 (en) 2002-10-10 2004-04-22 Dominique Bosteels Combustion process

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1317440A (fr) * 1962-02-09 1963-02-08 Diamond Alkali Co Préparation de sols d'oxydes métalliques
FR2359199A1 (fr) * 1976-07-22 1978-02-17 Gamlen Naintre Sa Derives oleosolubles de metaux de terres rares utiles comme adjuvants de combustion dans les moteurs diesel
EP0206907A1 (fr) * 1985-06-20 1986-12-30 Rhone-Poulenc Chimie Procédé de préparation d'une dispersion colloidale d'un composé de cation métallique en milieu organique et les sols obtenus
FR2637909A1 (fr) * 1988-10-18 1990-04-20 Rouet Jean Additifs de combustion comportant des derives metalliques, leur procede de fabrication et leur utilisation
EP0368834A1 (de) * 1988-10-03 1990-05-16 Lang & Co., chemisch-technische Produkte Kommanditgesellschaft Wässrige Verbrennungskatalysatoren sowie Brennstoffe
EP0423744A1 (en) * 1985-08-16 1991-04-24 The Lubrizol Corporation Fuel products
EP0426978A1 (de) * 1989-09-15 1991-05-15 ERC Emissions-Reduzierungs-Concepte GmbH Verfahren zur selektiven nicht-katalytischen Reduktion der Emission von Schadstoffen aus ölbefeuerten Kesselanlagen
DE4032845A1 (de) * 1989-11-02 1991-07-11 Lang Chem Tech Prod Hydrophile katalysatorloesung zur verbesserten verbrennung von kohlenstoff- und kohlenwasserstoffhaltigen stoffen
JPH04345688A (ja) * 1991-05-24 1992-12-01 Mitsubishi Heavy Ind Ltd 高温酸化及び高温腐食防止用燃料添加剤
EP0599717A1 (fr) * 1992-11-25 1994-06-01 Rhone-Poulenc Chimie Agrégat de cristallites d'oxyde cérique, procédé d'obtention et son utilisation pour réduire les résidus de combustion

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1317440A (fr) * 1962-02-09 1963-02-08 Diamond Alkali Co Préparation de sols d'oxydes métalliques
FR2359199A1 (fr) * 1976-07-22 1978-02-17 Gamlen Naintre Sa Derives oleosolubles de metaux de terres rares utiles comme adjuvants de combustion dans les moteurs diesel
EP0206907A1 (fr) * 1985-06-20 1986-12-30 Rhone-Poulenc Chimie Procédé de préparation d'une dispersion colloidale d'un composé de cation métallique en milieu organique et les sols obtenus
EP0423744A1 (en) * 1985-08-16 1991-04-24 The Lubrizol Corporation Fuel products
EP0368834A1 (de) * 1988-10-03 1990-05-16 Lang & Co., chemisch-technische Produkte Kommanditgesellschaft Wässrige Verbrennungskatalysatoren sowie Brennstoffe
FR2637909A1 (fr) * 1988-10-18 1990-04-20 Rouet Jean Additifs de combustion comportant des derives metalliques, leur procede de fabrication et leur utilisation
EP0426978A1 (de) * 1989-09-15 1991-05-15 ERC Emissions-Reduzierungs-Concepte GmbH Verfahren zur selektiven nicht-katalytischen Reduktion der Emission von Schadstoffen aus ölbefeuerten Kesselanlagen
DE4032845A1 (de) * 1989-11-02 1991-07-11 Lang Chem Tech Prod Hydrophile katalysatorloesung zur verbesserten verbrennung von kohlenstoff- und kohlenwasserstoffhaltigen stoffen
JPH04345688A (ja) * 1991-05-24 1992-12-01 Mitsubishi Heavy Ind Ltd 高温酸化及び高温腐食防止用燃料添加剤
EP0599717A1 (fr) * 1992-11-25 1994-06-01 Rhone-Poulenc Chimie Agrégat de cristallites d'oxyde cérique, procédé d'obtention et son utilisation pour réduire les résidus de combustion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 9302, Derwent World Patents Index; AN 93-015390, XP002005224 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044414A1 (en) * 1996-05-20 1997-11-27 Bp Chemicals (Additives) Limited Marine diesel process and fuel therefor
US7291217B2 (en) 2002-01-04 2007-11-06 University Of Dayton Non-toxic corrosion-protection pigments based on rare earth elements
US7422793B2 (en) 2002-01-04 2008-09-09 University Of Dayton Non-toxic corrosion-protection rinses and seals based on rare earth elements

Also Published As

Publication number Publication date
FR2731009A1 (fr) 1996-08-30
EP0811047A1 (fr) 1997-12-10
MX9706401A (es) 1997-11-29
HUP9800072A3 (en) 1998-06-29
CA2211909A1 (fr) 1996-08-29
KR19980702258A (ko) 1998-07-15
FR2731009B1 (fr) 1997-04-04
JPH11500767A (ja) 1999-01-19
AU4882196A (en) 1996-09-11
HUP9800072A2 (hu) 1998-05-28
BR9607117A (pt) 1997-11-04
CN1176653A (zh) 1998-03-18

Similar Documents

Publication Publication Date Title
AU687189B2 (en) Aqueous fuel for internal combustion engine and method of preparing same
EP2303997B1 (fr) Essence aviation pour moteurs a pistons d'aéronefs, son procédé de préparation
EP2814917B1 (fr) Additifs ameliorant la resistance a l'usure et au lacquering de carburants de type gazole ou biogazole
FR2520376A1 (fr) Additif pour carburants et combustibles liquides hydrocarbones
FR2602240A1 (fr) Agent de conditionnement pour carburants
FR2894976A1 (fr) Essence aviation sans plomb
EP0811047A1 (fr) Utilisation d'un compose de cerium pour la protection des moteurs a combustion interne
EP1556464A1 (fr) Nouveau carburant a indice d'octane eleve et a teneur abaissee en plomb
WO1995018198A1 (fr) Un procede de filtration et de combustion de matieres carbonees issues de moteur a combustion interne
WO2004011575A2 (fr) Combustible emulsionne eau/hydrocarbures, sa preparation et ses utilisations
FR2910019A1 (fr) Procedes pour ameliorer la compatibilite a basse temperature de modificateurs de frottement du type amide dans des carburants, et modificateurs de frottement du type amide
FR2924438A1 (fr) Compositions de carburant a forte teneur en ethanol
CH651313A5 (fr) Carburant a base d'hydrocarbures renfermant de l'alcool.
FR2650289A1 (fr) Compose additif pour combustibles destines aux moteurs a combustion interne
CA2482735C (en) Method for reducing combustion chamber deposit flaking
EP0095972A1 (fr) Carburant pour moteur à explosion constitué par le mélange d'un gaz carburant et d'un additif liquide
WO2017129726A1 (fr) Composes dialkylcarbonates a titre d'additifs anti-suies pour carburant d'aviation
BE381172A (zh)
EP0661377A1 (fr) Procédé pour empêcher les dépôts carbonés dans le circuit d'échappement d'un moteur turbocompressé
BE416918A (zh)
FR2536760A1 (fr) Carburant liquide pour moteurs a combustion interne a allumage spontane a cycle diesel
FR2465779A1 (fr) Procede d'obtention d'un combustible liquide pour machines thermiques utilisant des combustibles hydrocarbures lourds
WO1979000029A1 (fr) Carburant pour moteurs a combustion interne a piston et a injection
BE443432A (zh)
BE826635A (fr) Additif pour carburant de moteur a combustion interne renfermant au moins un monoalcool et/ou un cetomondalcool primaire au secondaire

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 96192131.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AM AU BB BG BR BY CA CN CZ EE FI GE HU IS JP KG KP KR KZ LK LR LT LV MD MG MN MX NO NZ PL RO RU SG SI SK TJ TM TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1996904885

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 1996 525454

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1019970705655

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 1997 894390

Country of ref document: US

Date of ref document: 19970818

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2211909

Country of ref document: CA

Ref document number: 2211909

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: PA/a/1997/006401

Country of ref document: MX

WWP Wipo information: published in national office

Ref document number: 1996904885

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1019970705655

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 1996904885

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1019970705655

Country of ref document: KR