IT1099060B - Composit catalitico multimetallico superattivo e impiego di esso nella conversione di idrocarburi - Google Patents
Composit catalitico multimetallico superattivo e impiego di esso nella conversione di idrocarburiInfo
- Publication number
- IT1099060B IT1099060B IT27675/78A IT2767578A IT1099060B IT 1099060 B IT1099060 B IT 1099060B IT 27675/78 A IT27675/78 A IT 27675/78A IT 2767578 A IT2767578 A IT 2767578A IT 1099060 B IT1099060 B IT 1099060B
- Authority
- IT
- Italy
- Prior art keywords
- composit
- hydrocarbons
- conversion
- multimetallic catalytic
- superactive multimetallic
- Prior art date
Links
Classifications
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6567—Rhenium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8896—Rhenium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8986—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with manganese, technetium or rhenium
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/085—Catalytic reforming characterised by the catalyst used containing platinum group metals or compounds thereof
- C10G35/09—Bimetallic catalysts in which at least one of the metals is a platinum group metal
-
- 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
- Y10S585/00—Chemistry of hydrocarbon compounds
- Y10S585/929—Special chemical considerations
- Y10S585/942—Production of carbonium ion or hydrocarbon free-radical
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/833,332 US4165276A (en) | 1977-09-14 | 1977-09-14 | Hydrocarbon conversion with a superactive multimetallic catalytic composite |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7827675A0 IT7827675A0 (it) | 1978-09-14 |
IT1099060B true IT1099060B (it) | 1985-09-18 |
Family
ID=25264123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27675/78A IT1099060B (it) | 1977-09-14 | 1978-09-14 | Composit catalitico multimetallico superattivo e impiego di esso nella conversione di idrocarburi |
Country Status (16)
Country | Link |
---|---|
US (4) | US4165276A (it) |
JP (1) | JPS5453693A (it) |
AR (1) | AR226151A1 (it) |
AU (1) | AU517466B2 (it) |
BE (1) | BE870396A (it) |
CA (1) | CA1100475A (it) |
DE (1) | DE2839795C2 (it) |
ES (1) | ES473306A1 (it) |
FR (1) | FR2403107A1 (it) |
GB (1) | GB2004764B (it) |
IT (1) | IT1099060B (it) |
MX (1) | MX150786A (it) |
SE (1) | SE443300B (it) |
TR (1) | TR19974A (it) |
YU (1) | YU215378A (it) |
ZA (1) | ZA785203B (it) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4206041A (en) * | 1977-09-14 | 1980-06-03 | Uop Inc. | Hydrocarbon conversion with a sulfided and attenuated superactive multimetallic catalytic composite |
US4250020A (en) * | 1979-07-16 | 1981-02-10 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
US4175031A (en) * | 1977-09-14 | 1979-11-20 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
US4183805A (en) * | 1977-09-14 | 1980-01-15 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
US4256566A (en) * | 1977-09-14 | 1981-03-17 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
US4210561A (en) * | 1977-11-04 | 1980-07-01 | Uop Inc. | Activated and attenuated multimetallic catalytic composite |
US4217248A (en) * | 1978-01-03 | 1980-08-12 | Phillips Petroleum Company | Hydroalkylation catalyst composition comprising a rhenium, nickel, rare earth zeolite |
US4174298A (en) * | 1978-01-09 | 1979-11-13 | Uop Inc. | Activated multimetallic catalytic composite |
US4210769A (en) * | 1978-05-18 | 1980-07-01 | Uop Inc. | Hydrocarbon dehydrogenation with a superactive multimetallic catalytic composite for use therein |
US4290921A (en) * | 1978-11-30 | 1981-09-22 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4298504A (en) * | 1978-12-15 | 1981-11-03 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4225417A (en) * | 1979-02-05 | 1980-09-30 | Atlantic Richfield Company | Catalytic reforming process with sulfur removal |
US4565802A (en) * | 1979-02-16 | 1986-01-21 | Union Oil Company Of California | Silica-containing catalysts |
US4212769A (en) * | 1979-02-21 | 1980-07-15 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4256608A (en) * | 1979-03-07 | 1981-03-17 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
US4220558A (en) * | 1979-04-12 | 1980-09-02 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
CA1143361A (en) * | 1979-04-13 | 1983-03-22 | Exxon Research And Engineering Company | Reforming with multimetallic catalysts |
US4312792A (en) * | 1979-05-04 | 1982-01-26 | Uop Inc. | Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein |
US4295960A (en) * | 1979-05-04 | 1981-10-20 | Uop Inc. | Hydrocarbon dehydrocyclization with an attenuated superactive multimetallic catalytic composite |
US4231897A (en) * | 1979-05-04 | 1980-11-04 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4246095A (en) * | 1979-06-04 | 1981-01-20 | Uop Inc. | Hydrocarbon conversion with a sulfided superactive multimetallic catalytic composite |
US4333854A (en) * | 1979-06-04 | 1982-06-08 | Uop Inc. | Sulfided superactive multimetallic catalytic composite |
US4322285A (en) * | 1979-06-08 | 1982-03-30 | Uop Inc. | Hydrocarbon dehydrocyclization with an attenuated superactive multimetallic catalytic composite |
US4238366A (en) * | 1979-06-08 | 1980-12-09 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4353815A (en) * | 1979-06-08 | 1982-10-12 | Uop Inc. | Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein |
US4229319A (en) * | 1979-06-15 | 1980-10-21 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4312788A (en) * | 1979-07-16 | 1982-01-26 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4313020A (en) * | 1979-07-16 | 1982-01-26 | Uop Inc. | Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein |
US4312789A (en) * | 1979-08-20 | 1982-01-26 | Uop Inc. | Attenuated superactive multimetallic catalytic composite |
US4343724A (en) * | 1979-10-01 | 1982-08-10 | Uop Inc. | Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein |
US4337146A (en) * | 1979-10-01 | 1982-06-29 | Uop Inc. | Hydrocarbon dehydrocyclization with an attenuated superactive multimetallic catalytic composite |
US4299689A (en) * | 1979-10-01 | 1981-11-10 | Uop Inc. | Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite |
FR2469204A1 (fr) * | 1979-11-12 | 1981-05-22 | Inst Francais Du Petrole | Nouveaux catalyseurs de dealkylation, a la vapeur d'eau, d'hydrocarbures aromatiques |
FR2479707A1 (fr) * | 1980-04-02 | 1981-10-09 | Elf France | Catalyseur de production d'hydrocarbures aromatiques et son procede de preparation |
US4371457A (en) * | 1980-10-29 | 1983-02-01 | Mobil Oil Corporation | Zeolites modified with group VA metals |
US4302621A (en) * | 1980-10-29 | 1981-11-24 | Mobil Oil Corporation | Shape selective reactions utilizing zeolites modified with Group V A metals |
US4876392A (en) * | 1982-09-21 | 1989-10-24 | Exxon Research & Engineering Company | Process for preparation of keystones by oxidation of secondary alcohols using a trimetallic catalyst comprising molybdenum, rhenium and a group VIII noble metal |
US4737482A (en) * | 1983-07-25 | 1988-04-12 | Exxon Research & Engineering Co. | Catalysts for oxidation of olefins to ketones |
US4537872A (en) * | 1983-04-28 | 1985-08-27 | Nippon Oil Company, Limited | Process for preparing a hydrocarbon reforming catalyst |
US4550185A (en) * | 1983-12-22 | 1985-10-29 | E. I. Du Pont De Nemours And Company | Process for making tetrahydrofuran and 1,4-butanediol using Pd/Re hydrogenation catalyst |
US4609636A (en) * | 1983-12-22 | 1986-09-02 | E. I. Du Pont De Nemours And Company | Pd/Re hydrogenation catalyst for making tetrahydrofuran and 1,4-butanediol |
GB8509530D0 (en) * | 1985-04-13 | 1985-05-15 | Bp Chem Int Ltd | Hydrogenation of carboxylic acids |
US5242675A (en) * | 1985-10-15 | 1993-09-07 | Exxon Research & Engineering Company | Zeolite L |
US5486498A (en) * | 1986-10-14 | 1996-01-23 | Exxon Research & Engineering Company | Zeolite L |
US5236624A (en) * | 1987-03-16 | 1993-08-17 | Exxon Chemical Patents Inc. | Dispersions and emulsions |
GB8801067D0 (en) * | 1988-01-19 | 1988-02-17 | Exxon Chemical Patents Inc | Zeolite l preparation |
JPH01310738A (ja) * | 1988-06-10 | 1989-12-14 | Toyota Motor Corp | 排ガス浄化用触媒 |
US4966682A (en) * | 1989-07-03 | 1990-10-30 | Exxon Research & Engineering Company | Reforming with modified alumina catalysts |
US4966881A (en) * | 1989-07-03 | 1990-10-30 | Exxon Research & Engineering Company | Novel platinum-alumina reforming catalysts |
US4963249A (en) * | 1989-07-03 | 1990-10-16 | Exxon Research & Engineering Company | Reforming using novel platinum-tin alumina catalysts |
US4966878A (en) * | 1989-07-03 | 1990-10-30 | Exxon Research & Engineering Company | Novel platinum agglomerated iridium catalysts |
US4966879A (en) * | 1989-07-03 | 1990-10-30 | Exxon Research & Engineering Company | Novel platinum-iridium reforming catalysts |
US4966880A (en) * | 1989-07-03 | 1990-10-30 | Exxon Research & Engineering Company | Novel platinum-tin-alumina reforming catalysts |
US4968408A (en) * | 1989-07-03 | 1990-11-06 | Exxon Research & Engineering Company | Reforming using platinum agglomerated iridium catalysts |
CA2082430A1 (en) * | 1990-05-21 | 1991-11-22 | Gyanesh P. Khare | Catalytic compositions |
US5166121A (en) * | 1990-05-21 | 1992-11-24 | Engelhard Corporation | Catalytic compositions |
US5482615A (en) * | 1993-03-11 | 1996-01-09 | Exxon Research And Engineering Company | Noble metal/ZN-A1203 reforming catalysts with enhanced reforming performance (C-2714) |
US5344805A (en) * | 1993-05-03 | 1994-09-06 | Phillips Petroleum Company | Platinum and tin-containing catalyst and use thereof in alkane dehydrogenation |
JP3314897B2 (ja) * | 1994-08-03 | 2002-08-19 | トヨタ自動車株式会社 | 排気ガス浄化用触媒の製造方法 |
DE19520258A1 (de) * | 1995-06-02 | 1996-12-05 | Bayer Ag | Verfahren zur Herstellung von 2-Pyrrolidonen |
FR2735489B1 (fr) * | 1995-06-16 | 1997-08-22 | Inst Francais Du Petrole | Procede de transformation catalytique d'hydrocarbures en composes aromatiques avec un catalyseur contenant du titane, zirconium, hafnium, cobalt, nickel et/ou zinc |
MY113914A (en) * | 1995-06-16 | 2002-06-29 | Inst Francais Du Petrole | Process for catalytic conversion of hydrocarbons into aromatic compounds with a catalyst containing silicon |
FR2735397B1 (fr) * | 1995-06-16 | 1997-08-22 | Inst Francais Du Petrole | Catalyseurs utilisables dans les reactions de transformation d'hydrocarbures et contenant des lanthanides |
CA2225505A1 (fr) * | 1995-06-16 | 1997-01-03 | Fabio Alario | Catalyseurs utilisables dans les reactions de transformation d'hydrocarbures et contenant un metal dopant choisi dans le groupe titane, le zirconium, le hafnium, le cobalt, le nickel, le zinc, les lanthanides et les metaux alcalins et alcalino-terreux |
FR2735492B1 (fr) * | 1995-06-16 | 1997-08-22 | Inst Francais Du Petrole | Procede de transformation catalytique d'hydrocarbures en composes aromatiques, avec un catalyseur contenant des lanthanides et du silicium |
FR2736646B1 (fr) * | 1995-07-13 | 1997-10-03 | Cpe Lyon Fcr | Nouveau procede de degradation controlee de polymeres hydrocarbones |
US6083867A (en) * | 1998-08-31 | 2000-07-04 | Phillips Petroleum Company | Hybrid catalyst system for converting hydrocarbons and a method of making and using such catalyst system |
AU7839300A (en) * | 1999-09-29 | 2001-04-30 | Corning Incorporated | Coated furnace component and catalyst |
US8080224B2 (en) * | 2006-05-05 | 2011-12-20 | Sud-Chemie Inc. | Catalyst for the conversion of carbon monoxide |
DE102006053715A1 (de) * | 2006-11-15 | 2008-05-21 | Schaeffler Kg | Wälzlager mit Zwischenschicht |
EP3317012A4 (en) * | 2015-06-30 | 2019-03-06 | Reliance Industries Limited | REFORMATING CATALYST AND METHOD FOR THE PRODUCTION THEREOF |
JP6886290B2 (ja) * | 2016-12-26 | 2021-06-16 | 太陽化学株式会社 | 低温酸化触媒の製造方法 |
RU2767882C1 (ru) * | 2021-04-29 | 2022-03-22 | Публичное акционерное общество "Нефтяная компания "Роснефть" (ПАО "НК "Роснефть") | Катализатор риформинга бензиновых фракций и способ его получения |
RU2767681C1 (ru) * | 2021-04-29 | 2022-03-18 | Публичное акционерное общество "Нефтяная компания "Роснефть" (ПАО "НК "Роснефть") | Катализатор риформинга бензиновых фракций и способ его получения |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2798051A (en) * | 1953-05-19 | 1957-07-02 | Universal Oil Prod Co | Method of manufacturing a supported catalyst |
US3415737A (en) * | 1966-06-24 | 1968-12-10 | Chevron Res | Reforming a sulfur-free naphtha with a platinum-rhenium catalyst |
US3591649A (en) * | 1968-10-10 | 1971-07-06 | Exxon Research Engineering Co | Conversion catalyst |
US3617520A (en) * | 1969-06-25 | 1971-11-02 | Chevron Res | Sulfiding of low platinum content catalyst |
GB1346177A (en) * | 1970-11-25 | 1974-02-06 | British Petroleum Co | Platinum group metal catalyst and their use |
FR2127310A5 (it) * | 1971-03-03 | 1972-10-13 | Inst Francais Du Petrole | |
BE792024A (fr) * | 1971-12-15 | 1973-05-29 | Catalyse Soc Prod Francais | Nouveau catalyseur de conversion d'hydrocarbures |
US4012313A (en) * | 1972-04-30 | 1977-03-15 | Chevron Research Company | Catalytic reforming process and catalyst |
US3852190A (en) * | 1972-10-27 | 1974-12-03 | Chevron Res | Reforming with platinum on alumina derived from a byproduct of a ziegler process |
US4048110A (en) * | 1976-05-12 | 1977-09-13 | Celanese Corporation | Rhenium catalyst composition |
-
1977
- 1977-09-14 US US05/833,332 patent/US4165276A/en not_active Expired - Lifetime
-
1978
- 1978-03-03 US US05/883,115 patent/US4137153A/en not_active Expired - Lifetime
- 1978-05-18 US US05/907,240 patent/US4157989A/en not_active Expired - Lifetime
- 1978-05-26 US US05/910,301 patent/US4159939A/en not_active Expired - Lifetime
- 1978-09-12 CA CA311,154A patent/CA1100475A/en not_active Expired
- 1978-09-12 AR AR273653A patent/AR226151A1/es active
- 1978-09-12 YU YU02153/78A patent/YU215378A/xx unknown
- 1978-09-12 BE BE190411A patent/BE870396A/xx not_active IP Right Cessation
- 1978-09-13 GB GB7836699A patent/GB2004764B/en not_active Expired
- 1978-09-13 AU AU39810/78A patent/AU517466B2/en not_active Expired
- 1978-09-13 ES ES473306A patent/ES473306A1/es not_active Expired
- 1978-09-13 DE DE2839795A patent/DE2839795C2/de not_active Expired
- 1978-09-13 SE SE7809632A patent/SE443300B/sv not_active IP Right Cessation
- 1978-09-13 ZA ZA00785203A patent/ZA785203B/xx unknown
- 1978-09-14 JP JP11348678A patent/JPS5453693A/ja active Pending
- 1978-09-14 TR TR19974A patent/TR19974A/xx unknown
- 1978-09-14 FR FR7826439A patent/FR2403107A1/fr active Granted
- 1978-09-14 IT IT27675/78A patent/IT1099060B/it active
- 1978-09-14 MX MX174884A patent/MX150786A/es unknown
Also Published As
Publication number | Publication date |
---|---|
TR19974A (tr) | 1980-06-02 |
FR2403107A1 (fr) | 1979-04-13 |
JPS5453693A (en) | 1979-04-27 |
US4137153A (en) | 1979-01-30 |
YU215378A (en) | 1982-10-31 |
AR226151A1 (es) | 1982-06-15 |
DE2839795A1 (de) | 1979-03-15 |
US4159939A (en) | 1979-07-03 |
FR2403107B1 (it) | 1982-10-15 |
ES473306A1 (es) | 1979-10-16 |
US4157989A (en) | 1979-06-12 |
SE443300B (sv) | 1986-02-24 |
IT7827675A0 (it) | 1978-09-14 |
ZA785203B (en) | 1979-08-29 |
BE870396A (fr) | 1979-01-02 |
GB2004764A (en) | 1979-04-11 |
AU517466B2 (en) | 1981-07-30 |
GB2004764B (en) | 1982-03-10 |
US4165276A (en) | 1979-08-21 |
CA1100475A (en) | 1981-05-05 |
MX150786A (es) | 1984-07-18 |
DE2839795C2 (de) | 1982-10-21 |
AU3981078A (en) | 1980-03-20 |
SE7809632L (sv) | 1979-03-15 |
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