BE852865A - Procede pour la production selective de benzene para-dialkyle substitue et catalyseur convenant a cette fin - Google Patents

Procede pour la production selective de benzene para-dialkyle substitue et catalyseur convenant a cette fin

Info

Publication number
BE852865A
BE852865A BE176109A BE176109A BE852865A BE 852865 A BE852865 A BE 852865A BE 176109 A BE176109 A BE 176109A BE 176109 A BE176109 A BE 176109A BE 852865 A BE852865 A BE 852865A
Authority
BE
Belgium
Prior art keywords
dialkyl
catalyst suitable
selective production
substitute benzene
benzene para
Prior art date
Application number
BE176109A
Other languages
English (en)
French (fr)
Inventor
Chin-Chiun Chu
Werner Otto Haag
David Harold Olson
Paul Gerhard Rodewald
Original Assignee
Mobil Oil Corp
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
Priority claimed from US05/672,194 external-priority patent/US4060568A/en
Priority claimed from US05/680,998 external-priority patent/US4011276A/en
Priority claimed from US05/726,091 external-priority patent/US4090981A/en
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of BE852865A publication Critical patent/BE852865A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
    • C07C6/08—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
    • C07C6/12—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
    • C07C6/123—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of only one hydrocarbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
    • C07C2/66—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
    • C07C2/864—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an alcohol
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
    • C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
    • C07C5/41—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/12—After treatment, characterised by the effect to be obtained to alter the outside of the crystallites, e.g. selectivation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/26—After treatment, characterised by the effect to be obtained to stabilize the total catalyst structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/32—Reaction with silicon compounds, e.g. TEOS, siliconfluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/34—Reaction with organic or organometallic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/36—Steaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/42—Addition of matrix or binder particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/65—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
BE176109A 1976-03-31 1977-03-24 Procede pour la production selective de benzene para-dialkyle substitue et catalyseur convenant a cette fin BE852865A (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US05/672,194 US4060568A (en) 1976-03-31 1976-03-31 Silica-modified zeolite catalyst and conversion therewith
US05/680,998 US4011276A (en) 1976-04-28 1976-04-28 Disproportionation of toluene
US68586976A 1976-05-12 1976-05-12
US68587276A 1976-05-12 1976-05-12
US05/726,091 US4090981A (en) 1976-09-23 1976-09-23 Catalyst for selective production of para dialkyl substituted benzenes

Publications (1)

Publication Number Publication Date
BE852865A true BE852865A (fr) 1977-09-26

Family

ID=27542059

Family Applications (1)

Application Number Title Priority Date Filing Date
BE176109A BE852865A (fr) 1976-03-31 1977-03-24 Procede pour la production selective de benzene para-dialkyle substitue et catalyseur convenant a cette fin

Country Status (12)

Country Link
JP (3) JPS52120292A (de)
BE (1) BE852865A (de)
CS (1) CS218565B2 (de)
DE (3) DE2760479C2 (de)
FR (1) FR2357303A1 (de)
GB (1) GB1574523A (de)
IT (1) IT1075368B (de)
NL (1) NL187424C (de)
NO (1) NO149492C (de)
NZ (1) NZ183608A (de)
PL (1) PL115528B1 (de)
SE (1) SE438606B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424539A4 (en) * 1989-03-22 1992-07-08 Matsushita Refrigeration Company Expanded heat-insulating material

Families Citing this family (36)

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NZ183608A (en) * 1976-03-31 1978-12-18 Mobil Oil Corp Aluminosilicate zeolite catalyst for selectine production of para-diakyl substituted benzenes
PL199748A1 (pl) * 1976-07-19 1978-04-24 Mobil Oil Corp Sposob selektywnego wytwarzania p-dwualkilobenzenow
US4104319A (en) * 1977-06-23 1978-08-01 Mobil Oil Corporation Ethylation of mono alkyl benzene
US4117024A (en) * 1977-07-29 1978-09-26 Mobil Oil Corporation Ethylation of aromatic compounds
FR2417540A1 (fr) * 1978-02-20 1979-09-14 Shell France Procede de craquage catalytique d'hydrocarbures et catalyseur pour la mise en oeuvre du procede
FR2442881A2 (fr) * 1978-11-29 1980-06-27 Shell France Procede de craquage catalytique d'hydrocarbures, et catalyseur pour la mise en oeuvre du procede
AU538578B2 (en) * 1979-01-31 1984-08-23 Mobil Oil Corp. Zeolite catalyst containing gp za or gp8 metal and its use to convert hydrocarbons
US4274982A (en) * 1979-10-12 1981-06-23 Mobil Oil Corporation Method for maintaining para-selectivity of modified zeolite catalyst
US4357264A (en) 1980-03-10 1982-11-02 Mobil Oil Corporation Alkaline earth metal modified zeolite catalysts
US4288647A (en) * 1980-03-10 1981-09-08 Mobil Oil Corporation Shape selective reactions with alkaline earth-modified zeolite catalysts
US4278827A (en) * 1980-04-07 1981-07-14 Mobil Oil Corporation Shape selective reactions with zeolite catalyst modified with group IVB metal
DE3165804D1 (en) * 1980-05-19 1984-10-11 Mobil Oil Corp Shape selective reactions with zeolite catalyst modified with iron and/or cobalt
JPS57108023A (en) * 1980-12-26 1982-07-05 Toa Nenryo Kogyo Kk Oligomerization catalyst for isobutene
US4431527A (en) * 1981-11-13 1984-02-14 Standard Oil Company (Indiana) Process for hydrogen treating high nitrogen content hydrocarbon feeds
JPS5931718A (ja) * 1982-08-17 1984-02-20 Toray Ind Inc パラジアルキルベンゼンの選択的製造法
JPS59107921A (ja) * 1982-12-10 1984-06-22 Idemitsu Kosan Co Ltd ｐ―キシレンの製造方法
ZA845190B (en) * 1983-08-19 1986-02-26 Mobil Oil Corp A process for preparing a coked zeolite catalyst and a process for the selective disproportionation of toluene using said catalyst
DE3474784D1 (en) * 1983-08-19 1988-12-01 Mobil Oil Corp A process for preparing a coked zeolite catalyst and a process for the selective disproportionation of toluene using said catalyst
US4613717A (en) * 1984-06-25 1986-09-23 Research Association For Utilization Of Light Oil Process for producing a 1,4-dialkylbenzene
JPS61221137A (ja) * 1985-03-28 1986-10-01 Teijin Yuka Kk Ｐ−キシレンの製造法
JPS6263528A (ja) * 1985-09-17 1987-03-20 Teijin Yuka Kk Ｐ−キシレンの製造法
JPS62115088A (ja) * 1985-11-13 1987-05-26 Res Assoc Util Of Light Oil 芳香族炭化水素の製造方法
US4902841A (en) * 1987-03-11 1990-02-20 Nippon Petrochemicals Company, Ltd. Method for producing electrical insulating oil composition
US4849386A (en) * 1987-04-08 1989-07-18 Taiwan Styrene Monomer Corporation Novel silicon-modified catalyst Si/HZSM-5 preparation
US4851604A (en) * 1987-09-02 1989-07-25 Mobil Oil Corp. Toluene disproportionation
JPH0788319B2 (ja) * 1987-09-09 1995-09-27 日本石油化学株式会社 ｍ−ベンジルトルエンの製造方法
JPH0810566B2 (ja) * 1988-03-09 1996-01-31 日本石油化学株式会社 改良された留分からなる電気絶縁油
DE69031214T2 (de) * 1989-12-13 1998-02-26 Mobil Oil Corp Verfahren zur katalytischen konversion einer c9+ -aromatischen charge
US5448005A (en) * 1994-04-04 1995-09-05 Mobil Oil Corporation Crystallization of paraxlene from high purity paraxylene feeds
JP3427507B2 (ja) * 1994-09-12 2003-07-22 東レ株式会社 パラジアルキルベンゼンの製造用触媒及びその製造法及びパラキシレンを製造する方法
DE19538799A1 (de) * 1995-10-18 1997-04-24 Sued Chemie Ag Wabenförmiger Katalysatorträger
US6316683B1 (en) * 1999-06-07 2001-11-13 Exxonmobil Chemical Patents Inc. Protecting catalytic activity of a SAPO molecular sieve
US6709570B1 (en) * 1999-09-27 2004-03-23 Shell Oil Company Method for preparing a catalyst
US7049260B2 (en) 2003-06-03 2006-05-23 Chevron Phillips Chemical Company Lp Selective para-xylene production via methylation of toluene with methanol in the presence of modified HZSM-5 catalyst
CN1902147B (zh) 2003-12-31 2010-08-25 埃克森美孚化学专利公司 芳族化合物的烷基化方法
JP5294928B2 (ja) * 2009-03-06 2013-09-18 三井化学株式会社 芳香族炭化水素の製造方法およびその製造方法に使用される触媒

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US3417157A (en) * 1967-12-28 1968-12-17 Universal Oil Prod Co Transalkylation of toluene and catalyst therefor
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US3702886A (en) * 1969-10-10 1972-11-14 Mobil Oil Corp Crystalline zeolite zsm-5 and method of preparing the same
US3790471A (en) * 1969-10-10 1974-02-05 Mobil Oil Corp Conversion with zsm-5 family of crystalline aluminosilicate zeolites
US3682996A (en) 1970-02-24 1972-08-08 Mobil Oil Corp Zeolite esters
US3832449A (en) * 1971-03-18 1974-08-27 Mobil Oil Corp Crystalline zeolite zsm{14 12
US3698157A (en) * 1971-06-01 1972-10-17 Mobil Oil Corp Separation of mixtures with modified zeolites
GB1403329A (en) * 1972-04-28 1975-08-28 Mobil Oil Corp Vapour-phase alkylation in presence of crystalline alumino silicate catalyst
US3751504A (en) * 1972-05-12 1973-08-07 Mobil Oil Corp Vapor-phase alkylation in presence of crystalline aluminosilicate catalyst with separate transalkylation
US3808284A (en) * 1972-09-11 1974-04-30 Texaco Inc Process for disproportionating hydrocarbons
US3894104A (en) * 1973-08-09 1975-07-08 Mobil Oil Corp Aromatization of hetero-atom substituted hydrocarbons
US3890218A (en) * 1974-03-29 1975-06-17 Mobil Oil Corp Upgrading aliphatic naphthas to higher octane gasoline
CA1062285A (en) * 1974-04-24 1979-09-11 Mobil Oil Corporation Conversion of synthesis gas to hydrocarbon mixtures
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US4016218A (en) * 1975-05-29 1977-04-05 Mobil Oil Corporation Alkylation in presence of thermally modified crystalline aluminosilicate catalyst
NZ183608A (en) * 1976-03-31 1978-12-18 Mobil Oil Corp Aluminosilicate zeolite catalyst for selectine production of para-diakyl substituted benzenes
US4086262A (en) * 1976-09-20 1978-04-25 Mobil Oil Corporation Conversion of synthesis gas to hydrocarbon mixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424539A4 (en) * 1989-03-22 1992-07-08 Matsushita Refrigeration Company Expanded heat-insulating material

Also Published As

Publication number Publication date
NL187424C (nl) 1991-10-01
SE7703593L (sv) 1977-10-01
JPS6247854B2 (de) 1987-10-09
SE438606B (sv) 1985-04-29
GB1574523A (en) 1980-09-10
NO149492B (no) 1984-01-23
JPS52120292A (en) 1977-10-08
IT1075368B (it) 1985-04-22
JPH01199920A (ja) 1989-08-11
JPH0567613B1 (de) 1993-09-27
CS218565B2 (en) 1983-02-25
FR2357303B1 (de) 1984-06-01
PL115528B1 (en) 1981-04-30
NZ183608A (en) 1978-12-18
NL187424B (nl) 1991-05-01
DE2760479C2 (de) 1993-08-12
NO149492C (no) 1984-05-09
DE2714239C2 (de) 1993-07-22
NL7703484A (nl) 1977-10-04
DE2760481C2 (de) 1993-07-15
FR2357303A1 (fr) 1978-02-03
DE2714239A1 (de) 1977-10-20
NO771085L (no) 1977-10-03

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