JPS5452699A - Zeolite zsmm11*its manufacture and contact conversion method of using it - Google Patents

Zeolite zsmm11*its manufacture and contact conversion method of using it

Info

Publication number
JPS5452699A
JPS5452699A JP9321778A JP9321778A JPS5452699A JP S5452699 A JPS5452699 A JP S5452699A JP 9321778 A JP9321778 A JP 9321778A JP 9321778 A JP9321778 A JP 9321778A JP S5452699 A JPS5452699 A JP S5452699A
Authority
JP
Japan
Prior art keywords
zsmm11
zeolite
manufacture
conversion method
contact conversion
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9321778A
Other languages
English (en)
Other versions
JPS6215488B2 (ja
Inventor
Deiin Rooruman Ruisu
Uiriamu Buariyoshitsu Aanesuto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Oil Corp
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
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of JPS5452699A publication Critical patent/JPS5452699A/ja
Publication of JPS6215488B2 publication Critical patent/JPS6215488B2/ja
Granted legal-status Critical Current

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
    • C07C6/126—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 more than 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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/36—Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
    • C01B39/365—Type ZSM-8; Type ZSM-11; ZSM 5/11 intermediate
    • 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
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08—Catalytic processes
    • C07C2/12—Catalytic processes with crystalline alumino-silicates or with catalysts comprising molecular sieves
    • 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
    • C07C2/86—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
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/2206—Catalytic processes not covered by C07C5/23 - C07C5/31
    • C07C5/222—Catalytic processes not covered by C07C5/23 - C07C5/31 with crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2702—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
    • C07C5/2708—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with crystalline alumino-silicates, e.g. molecular sieves
    • 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
    • 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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/29—MEL, e.g. ZSM-11

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
JP9321778A 1977-08-01 1978-08-01 Zeolite zsmm11*its manufacture and contact conversion method of using it Granted JPS5452699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/820,992 US4108881A (en) 1977-08-01 1977-08-01 Synthesis of zeolite ZSM-11

Publications (2)

Publication Number Publication Date
JPS5452699A true JPS5452699A (en) 1979-04-25
JPS6215488B2 JPS6215488B2 (ja) 1987-04-08

Family

ID=25232222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9321778A Granted JPS5452699A (en) 1977-08-01 1978-08-01 Zeolite zsmm11*its manufacture and contact conversion method of using it

Country Status (9)

Country Link
US (1) US4108881A (ja)
EP (1) EP0000669B1 (ja)
JP (1) JPS5452699A (ja)
AU (1) AU515825B2 (ja)
CA (1) CA1119146A (ja)
DE (1) DE2860140D1 (ja)
IT (1) IT1097569B (ja)
NZ (1) NZ188025A (ja)
ZA (1) ZA784360B (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129608A (en) * 1980-02-21 1981-10-09 Basf Ag Crystalline iso-tactic zeolite and its manufacture
JPS577820A (en) * 1980-06-18 1982-01-16 Mitsubishi Heavy Ind Ltd Novel crystalline silicate and its manufacture
JPS58219130A (ja) * 1982-06-14 1983-12-20 シエブロン・リサ−チ・コンパニ− ベンゼンの合成法
JPS6094926A (ja) * 1983-10-28 1985-05-28 Mitsubishi Chem Ind Ltd ジメチルナフタレン類の異性化方法
JPH0339007B2 (ja) * 1981-06-30 1991-06-12 Amoco Corp
JP2008255005A (ja) * 2007-04-05 2008-10-23 Ifp Ｍｅｌ構造型ゼオライトの調製方法

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830787B2 (de) * 1978-07-13 1981-02-19 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von stickstoffhaltigen kirstallinen Metallsilikaten mit Zeolithstniktur
BR8000226A (pt) * 1979-01-15 1980-10-07 Mobil Oil Corp Zeolito zsm-11, processo para sua preparacao, e processo para conversao de uma carga organica
DE3066664D1 (en) * 1979-02-21 1984-03-29 Mobil Oil Corp Crystalline zeolitic material, synthesis and use thereof
DE2909929A1 (de) * 1979-03-14 1980-09-25 Basf Ag Verfahren zur herstellung eines zeolithen vom strukturtyp zsm-5
US4229424A (en) * 1979-04-09 1980-10-21 Mobil Oil Corporation Crystalline zeolite product constituting ZSM-5/ZSM-11 intermediates
US4423021A (en) * 1979-08-08 1983-12-27 Mobil Oil Corporation Method of preparing silico-crystal ZSM-48
US4259306A (en) * 1979-10-15 1981-03-31 Mobile Oil Corporation Synthesis of ZSM-39
CA1153974A (en) * 1979-12-31 1983-09-20 Francis G. Dwyer Conversion of olefin containing mixtures to gasoline
CA1167071A (en) * 1980-03-15 1984-05-08 William J. Ball Process for the production of aromatic hydrocarbons
US4324940A (en) * 1980-04-09 1982-04-13 Mobil Oil Corporation Shape selective acid catalyzed reactions of olefins over crystalline zeolites
AU542052B2 (en) * 1980-06-12 1985-02-07 Imperial Chemical Industries Ltd. Zeoliteeuz and its use as a catalyst
EP0042226B1 (en) * 1980-06-12 1984-08-08 Imperial Chemical Industries Plc Zeolite eu-1
DE3031557C2 (de) * 1980-08-21 1986-05-22 Basf Ag, 6700 Ludwigshafen Kristalliner Borsilikatzeolith ZBM-30 und Verfahren zu seiner Herstellung
US4371457A (en) * 1980-10-29 1983-02-01 Mobil Oil Corporation Zeolites modified with group VA metals
EP0055044B1 (en) * 1980-12-12 1985-09-18 Exxon Research And Engineering Company Composite zeolite
DE3268503D1 (en) * 1981-05-20 1986-02-27 Ici Plc Zeolites
CA1185953A (en) * 1981-06-30 1985-04-23 Muin S. Haddad Method for manufacture of ams-1b crystalline borosilicate molecular sieve
NZ202099A (en) * 1981-10-21 1986-07-11 Ici Plc Preparation of zeolite nu-10
US4495166A (en) * 1982-07-19 1985-01-22 Mobil Oil Corporation Synthesis of ZSM-5 utilizing a mixture of quaternary ammonium ions and amines
US4481173A (en) * 1982-11-22 1984-11-06 Mobil Oil Corporation Manufacture of low sodium zeolite
EP0113116B1 (en) * 1982-12-30 1985-12-04 Asahi Kasei Kogyo Kabushiki Kaisha A crystalline aluminosilicate, a process for producing the same, and a catalyst comprising the crystalline aluminosilicate
US4732747A (en) * 1983-04-11 1988-03-22 The Dow Chemical Company Magnesium silicate compositions and process for making
GB2167052B (en) * 1984-11-17 1988-09-07 Laporte Industries Ltd Synthetic crystalline molecular sieve materials and a method for their preparation
US4894212A (en) * 1987-07-20 1990-01-16 Mobil Oil Corp. Synthesis of crystalline silicate ZSM-11
US4797267A (en) * 1987-12-23 1989-01-10 Mobil Oil Corporation Method of producing rod-shaped ZSM-5 zeolite
US5213786A (en) * 1991-12-20 1993-05-25 Mobil Oil Corp. Synthesis of crystalline silicate ZSM-11
DE4323774A1 (de) * 1993-07-15 1995-02-09 Basf Ag Hohlkugelartig agglomerierte Pentasilzeolithe
US5645812A (en) * 1993-10-01 1997-07-08 Chevron U.S.A. Inc. Zeolite ZSM-11 and a process for preparing zeolite ZSM-11 using a 3,5-dimethylpiperidinium templating agent
US5785946A (en) * 1994-08-22 1998-07-28 Board Of Trustees Operating Michigan State University Crystalline inorganic oxide compositions prepared by neutral templating route
US5840264A (en) * 1994-08-22 1998-11-24 Board Of Trustees Operating Michigan State University Crystalline inorganic oxide compositions prepared by neutral templating route
US6162414A (en) 1994-08-22 2000-12-19 Board Of Trustees Operating Michigan State University Quasi crystalline inorganic oxide compositions prepared by neutral templating route
CN1041399C (zh) * 1994-12-30 1998-12-30 中国石油化工总公司 一种含稀土的结晶硅酸铝沸石
US5622684A (en) * 1995-06-06 1997-04-22 Board Of Trustees Operating Michigan State University Porous inorganic oxide materials prepared by non-ionic surfactant templating route
US5800799A (en) * 1996-05-02 1998-09-01 Board Of Trustees Operating Michigan State University Porous inorganic oxide materials prepared by non-ionic surfactant and fluoride ion
CN1048655C (zh) * 1996-06-24 2000-01-26 中国石油化工总公司 一种烷基化催化剂及其应用
US6027706A (en) * 1998-05-05 2000-02-22 Board Of Trustees Operating Michigan State University Porous aluminum oxide materials prepared by non-ionic surfactant assembly route
US6277355B1 (en) 1999-07-13 2001-08-21 Exxonmobil Chemical Patents Inc. Synthesis of ZSM-5 and ZSM-11
US6649083B1 (en) 1999-08-12 2003-11-18 Board Of Trustees Of Michigan State University Combined porous organic and inorganic oxide materials prepared by non-ionic surfactant templating route
DE19955557A1 (de) * 1999-11-18 2001-05-23 Basf Ag Oxidischer Katalysator mit Zeolithstruktur und Verfahren zu dessen Herstellung
CN106672999B (zh) * 2015-11-09 2018-10-23 中国石油化工股份有限公司 含卤素和稀土金属的zsm-11/zsm-5复合分子筛的合成方法及其合成的复合分子筛
CN106673000B (zh) * 2015-11-09 2018-10-23 中国石油化工股份有限公司 含稀土金属的zsm-11分子筛的合成方法及其合成的分子筛
CN106673001B (zh) * 2015-11-09 2018-11-20 中国石油化工股份有限公司 Zsm-11分子筛的合成方法及其合成的zsm-11分子筛
CN106673002B (zh) * 2015-11-09 2018-11-20 中国石油化工股份有限公司 Zsm-11/zsm-5复合分子筛的合成方法及其合成的复合分子筛
CN106944080B (zh) * 2016-01-07 2018-11-06 中国石油化工股份有限公司 一种用于乙烷氧化脱氢制乙烯催化剂的制备方法
TWI773974B (zh) 2019-03-29 2022-08-11 美商艾克頌美孚化學專利股份有限公司 新穎沸石，其製法，及其於轉化芳族烴之用途
WO2020205354A1 (en) 2019-03-29 2020-10-08 Exxonmobil Chemical Patents Inc. Mel-type zeolite for converting aromatic hydrocarbons, process for making and catalytic composition comprising said zeolite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134799A (en) * 1977-04-22 1978-11-24 Mobil Oil Synthetic crystalline almino silicate* method of making same and contact converting process using same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853743A (en) * 1970-04-09 1974-12-10 Mobil Oil Removal of organic cations from crystalline aluminosilicates
US3804746A (en) * 1970-04-23 1974-04-16 Mobil Oil Corp Hydrocarbon conversion using crystalline zeolite zsm-11 catalyst
US3709979A (en) * 1970-04-23 1973-01-09 Mobil Oil Corp Crystalline zeolite zsm-11
US4016245A (en) * 1973-09-04 1977-04-05 Mobil Oil Corporation Crystalline zeolite and method of preparing same
US3947482A (en) * 1974-03-20 1976-03-30 W. R. Grace & Co. Method for producing open framework zeolites
ZA756744B (en) * 1974-10-30 1976-10-27 Ici Ltd Improvements in and relating to zeolites
US4046859A (en) * 1974-11-29 1977-09-06 Mobil Oil Corporation Crystalline zeolite and method of preparing same
US4021447A (en) * 1975-04-30 1977-05-03 Mobil Oil Corporation Synthesis of zeolite ZSM-4
US4025571A (en) * 1976-05-12 1977-05-24 Mobil Oil Corporation Manufacture of hydrocarbons

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134799A (en) * 1977-04-22 1978-11-24 Mobil Oil Synthetic crystalline almino silicate* method of making same and contact converting process using same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129608A (en) * 1980-02-21 1981-10-09 Basf Ag Crystalline iso-tactic zeolite and its manufacture
JPH0127978B2 (ja) * 1980-02-21 1989-05-31 Bee Aa Esu Efu Ag
JPS577820A (en) * 1980-06-18 1982-01-16 Mitsubishi Heavy Ind Ltd Novel crystalline silicate and its manufacture
JPH0235691B2 (ja) * 1980-06-18 1990-08-13 Mitsubishi Heavy Ind Ltd
JPH0339007B2 (ja) * 1981-06-30 1991-06-12 Amoco Corp
JPS58219130A (ja) * 1982-06-14 1983-12-20 シエブロン・リサ−チ・コンパニ− ベンゼンの合成法
JPH0339048B2 (ja) * 1982-06-14 1991-06-12 Chevron Res
JPS6094926A (ja) * 1983-10-28 1985-05-28 Mitsubishi Chem Ind Ltd ジメチルナフタレン類の異性化方法
JP2008255005A (ja) * 2007-04-05 2008-10-23 Ifp Ｍｅｌ構造型ゼオライトの調製方法

Also Published As

Publication number Publication date
IT7826376A0 (it) 1978-08-01
CA1119146A (en) 1982-03-02
US4108881A (en) 1978-08-22
AU3848978A (en) 1980-02-07
DE2860140D1 (en) 1980-12-11
EP0000669A1 (en) 1979-02-07
AU515825B2 (en) 1981-04-30
IT1097569B (it) 1985-08-31
EP0000669B1 (en) 1980-09-03
ZA784360B (en) 1980-03-26
JPS6215488B2 (ja) 1987-04-08
NZ188025A (en) 1980-11-28

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