IT1118127B - Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti - Google Patents

Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti

Info

Publication number
IT1118127B
IT1118127B IT49810/79A IT4981079A IT1118127B IT 1118127 B IT1118127 B IT 1118127B IT 49810/79 A IT49810/79 A IT 49810/79A IT 4981079 A IT4981079 A IT 4981079A IT 1118127 B IT1118127 B IT 1118127B
Authority
IT
Italy
Prior art keywords
demetallization
desulfuration
procedure
heavy hydrocarbons
hydrocarbons
Prior art date
Application number
IT49810/79A
Other languages
English (en)
Other versions
IT7949810A0 (it
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Publication of IT7949810A0 publication Critical patent/IT7949810A0/it
Application granted granted Critical
Publication of IT1118127B publication Critical patent/IT1118127B/it

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24Chromium, molybdenum or tungsten
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24Chromium, molybdenum or tungsten
    • B01J23/28Molybdenum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/615100-500 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/633Pore volume less than 0.5 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/6350.5-1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/6472-50 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/66Pore distribution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04Alumina
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/107Atmospheric residues having a boiling point of at least about 538 °C

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Catalysts (AREA)
IT49810/79A 1978-07-26 1979-07-19 Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti IT1118127B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/928,141 US4212729A (en) 1978-07-26 1978-07-26 Process for demetallation and desulfurization of heavy hydrocarbons

Publications (2)

Publication Number Publication Date
IT7949810A0 IT7949810A0 (it) 1979-07-19
IT1118127B true IT1118127B (it) 1986-02-24

Family

ID=25455792

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49810/79A IT1118127B (it) 1978-07-26 1979-07-19 Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti

Country Status (12)

Country Link
US (1) US4212729A (it)
JP (1) JPS5518499A (it)
AU (1) AU528419B2 (it)
CA (1) CA1132078A (it)
DD (1) DD145541A5 (it)
DE (1) DE2930357A1 (it)
FR (1) FR2433569A1 (it)
GB (1) GB2026533B (it)
IT (1) IT1118127B (it)
MX (1) MX152369A (it)
NL (1) NL7905785A (it)
PL (1) PL117377B1 (it)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601056B2 (ja) * 1980-02-19 1985-01-11 千代田化工建設株式会社 アスファルテンを含む重質炭化水素油の水素化処理
US4301037A (en) * 1980-04-01 1981-11-17 W. R. Grace & Co. Extruded alumina catalyst support having controlled distribution of pore sizes
CA1182769A (en) * 1980-04-10 1985-02-19 Ronald S. Tolberg Two-bed catalytic hydroprocessing for heavy hydrocarbon feedstocks
US4421633A (en) * 1981-03-13 1983-12-20 Mobil Oil Corporation Low pressure cyclic hydrocracking process using multi-catalyst bed reactor for heavy liquids
CA1195278A (en) * 1981-09-28 1985-10-15 Chevron Research And Technology Company Layered residua treatment catalyst process and temperature profile
US4431525A (en) * 1982-04-26 1984-02-14 Standard Oil Company (Indiana) Three-catalyst process for the hydrotreating of heavy hydrocarbon streams
US4431526A (en) * 1982-07-06 1984-02-14 Union Oil Company Of California Multiple-stage hydroprocessing of hydrocarbon oil
US4886594A (en) * 1982-12-06 1989-12-12 Amoco Corporation Hydrotreating catalyst and process
CA1243976A (en) * 1982-12-06 1988-11-01 Amoco Corporation Hydrotreating catalyst and process
JPS59109589A (ja) * 1982-12-16 1984-06-25 Kobe Steel Ltd 石炭の液化方法
FR2538814B1 (fr) * 1982-12-30 1986-06-27 Inst Francais Du Petrole Procede de traitement d'une huile lourde ou d'une fraction d'huile lourde pour les convertir en fractions plus legeres
FR2538811A1 (fr) * 1982-12-30 1984-07-06 Inst Francais Du Petrole Procede de traitement d'une huile lourde ou d'une fraction d'huile lourde pour les convertir en fractions plus legeres
FR2538813A1 (fr) * 1982-12-31 1984-07-06 Inst Francais Du Petrole Procede d'hydrotraitement convertissant en au moins deux etapes une fraction lourde d'hydrocarbures contenant des impuretes soufrees et des impuretes metalliques
US4585546A (en) * 1983-04-29 1986-04-29 Mobil Oil Corporation Hydrotreating petroleum heavy ends in aromatic solvents with large pore size alumina
US4548709A (en) * 1983-04-29 1985-10-22 Mobil Oil Corporation Hydrotreating petroleum heavy ends in aromatic solvents with dual pore size distribution alumina catalyst
US4715948A (en) * 1983-07-06 1987-12-29 Phillips Petroleum Company Improving the life of a catalyst used to process hydrocarbon containing feed streams
US4564441A (en) * 1983-08-05 1986-01-14 Phillips Petroleum Company Hydrofining process for hydrocarbon-containing feed streams
US4617110A (en) * 1984-06-11 1986-10-14 Phillips Petroleum Company Control of a hydrofining process for hydrocarbon-containing feed streams which process employs a hydrodemetallization reactor in series with a hydrodesulfurization reactor
US4564439A (en) * 1984-06-29 1986-01-14 Chevron Research Company Two-stage, close-coupled thermal catalytic hydroconversion process
AU576083B2 (en) * 1984-06-29 1988-08-11 Chevron Research Company Two-stage, close-coupled thermal catalytic hydroconversion process
US4657663A (en) * 1985-04-24 1987-04-14 Phillips Petroleum Company Hydrotreating process employing a three-stage catalyst system wherein a titanium compound is employed in the second stage
US4752376A (en) * 1985-09-25 1988-06-21 Intevep, S.A. Multiple stepped process for the demetallization and desulfuration of heavy oil feedstocks
US4657664A (en) * 1985-12-20 1987-04-14 Amoco Corporation Process for demetallation and desulfurization of heavy hydrocarbons
US4729826A (en) * 1986-02-28 1988-03-08 Union Oil Company Of California Temperature controlled catalytic demetallization of hydrocarbons
US4816139A (en) * 1986-06-27 1989-03-28 Tenneco Oil Company Method for removing sulfur compounds from C6 and lower alkanes
US4778587A (en) * 1987-05-20 1988-10-18 Phillips Petroleum Company Hydrotreating process employing a pretreated alumina containing material
US4814315A (en) * 1987-05-20 1989-03-21 Phillips Petroleum Company Pretreated alumina containing material and process for its preparation
JPH03117956A (ja) * 1989-09-30 1991-05-20 Anritsu Corp 料金処理装置付コードレス電話機
JP2567291B2 (ja) * 1990-03-28 1996-12-25 株式会社コスモ総合研究所 炭化水素油の水素化処理方法
US5851381A (en) * 1990-12-07 1998-12-22 Idemitsu Kosan Co., Ltd. Method of refining crude oil
WO1992010557A1 (en) * 1990-12-07 1992-06-25 Idemitsu Kosan Co., Ltd. Method of refining crude oil
JPH04267642A (ja) * 1991-02-22 1992-09-24 Fujitsu Ltd データ回線不良警報回路
US5397456A (en) * 1993-02-19 1995-03-14 Texaco Inc. Hydroconversion process employing catalyst with specified pore size distribution
US5322829A (en) * 1993-03-15 1994-06-21 Amoco Corporation Resid hydrotreating catalyst and process
JP2958234B2 (ja) * 1994-02-19 1999-10-06 株式会社コスモ総合研究所 重質炭化水素油の水素化処理方法
JP3802106B2 (ja) 1995-06-08 2006-07-26 日本ケッチェン株式会社 炭化水素油の水素化処理触媒とその製造方法およびその活性化方法
ZA989153B (en) 1997-10-15 1999-05-10 Equistar Chem Lp Method of producing olefins and feedstocks for use in olefin production from petroleum residua which have low pentane insolubles and high hydrogen content
US6224749B1 (en) * 1998-05-06 2001-05-01 Exxon Research And Engineering Company Liquid and vapor stage hydroprocessing using once-through hydrogen
US6036844A (en) * 1998-05-06 2000-03-14 Exxon Research And Engineering Co. Three stage hydroprocessing including a vapor stage
US6554994B1 (en) * 1999-04-13 2003-04-29 Chevron U.S.A. Inc. Upflow reactor system with layered catalyst bed for hydrotreating heavy feedstocks
US20060289340A1 (en) * 2003-12-19 2006-12-28 Brownscombe Thomas F Methods for producing a total product in the presence of sulfur
US8608946B2 (en) * 2003-12-19 2013-12-17 Shell Oil Company Systems, methods, and catalysts for producing a crude product
CN1894388A (zh) * 2003-12-19 2007-01-10 国际壳牌研究有限公司 生产原油产品的系统,方法和催化剂
US20100098602A1 (en) * 2003-12-19 2010-04-22 Opinder Kishan Bhan Systems, methods, and catalysts for producing a crude product
US20050133405A1 (en) 2003-12-19 2005-06-23 Wellington Scott L. Systems and methods of producing a crude product
NL1027783C2 (nl) * 2003-12-19 2006-08-23 Shell Int Research Systemen en werkwijzen voor het bereiden van een ruw product.
US20070012595A1 (en) * 2003-12-19 2007-01-18 Brownscombe Thomas F Methods for producing a total product in the presence of sulfur
US7745369B2 (en) 2003-12-19 2010-06-29 Shell Oil Company Method and catalyst for producing a crude product with minimal hydrogen uptake
WO2006070007A1 (en) * 2004-12-31 2006-07-06 Shell Internationale Research Maatschappij B.V. Hydrogenation catalyst and use thereof for hydrogenating fischer-tropsch endproducts
KR20070120595A (ko) * 2005-04-11 2007-12-24 쉘 인터내셔날 리써취 마트샤피지 비.브이. 원유 생성물을 제조하기 위한 시스템, 방법 및 촉매
JP2008536000A (ja) 2005-04-11 2008-09-04 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ 窒素含有量の少ない原油生成物の製造方法及び触媒
CA2604012C (en) * 2005-04-11 2013-11-19 Shell Internationale Research Maatschappij B.V. Method and catalyst for producing a crude product having a reduced mcr content
AU2006336094B2 (en) * 2006-01-23 2009-12-10 Shell Internationale Research Maatschappij B.V. Hydrogenation catalyst and use thereof for hydrogenating Fischer-Tropsch endproducts
WO2009073436A2 (en) 2007-11-28 2009-06-11 Saudi Arabian Oil Company Process for catalytic hydrotreating of sour crude oils
US8178468B2 (en) * 2008-04-10 2012-05-15 Shell Oil Company Catalysts, preparation of such catalysts, methods of using such catalysts, products obtained in such methods and uses of products obtained
WO2010009077A2 (en) 2008-07-14 2010-01-21 Saudi Arabian Oil Company Process for the treatment of heavy oils using light hydrocarbon components as a diluent
US8372267B2 (en) 2008-07-14 2013-02-12 Saudi Arabian Oil Company Process for the sequential hydroconversion and hydrodesulfurization of whole crude oil
MX2008011121A (es) * 2008-08-29 2010-03-01 Mexicano Inst Petrol Liquidos ionicos libres de halogenos en la desulfuracion de naftas y su recuperacion.
WO2011005476A2 (en) 2009-06-22 2011-01-13 Saudi Arabian Oil Company Alternative process for the treatment of heavy crudes in a coking refinery
TWI534258B (zh) * 2010-10-13 2016-05-21 China Petrochemical Technology Co Ltd Method for Hydrogenation of Rinsing Bed with Heavy Material
US8518351B2 (en) 2011-03-31 2013-08-27 Uop Llc Apparatus for producing diesel
US8608940B2 (en) 2011-03-31 2013-12-17 Uop Llc Process for mild hydrocracking
US8158069B1 (en) 2011-03-31 2012-04-17 Uop Llc Apparatus for mild hydrocracking
US8747653B2 (en) 2011-03-31 2014-06-10 Uop Llc Process for hydroprocessing two streams
US8696885B2 (en) 2011-03-31 2014-04-15 Uop Llc Process for producing diesel
US8158070B1 (en) 2011-03-31 2012-04-17 Uop Llc Apparatus for hydroprocessing two streams
US8999144B2 (en) 2011-05-17 2015-04-07 Uop Llc Process for hydroprocessing hydrocarbons
US8747784B2 (en) 2011-10-21 2014-06-10 Uop Llc Process and apparatus for producing diesel

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1027016A (fr) * 1950-07-21 1953-05-06 Procédé pour la désulfuration d'huiles d'hydrocarbures, et catalyseur correspondant
US3180820A (en) * 1962-08-15 1965-04-27 Universal Oil Prod Co Dual zone hydrorefining process
US3803027A (en) * 1970-07-20 1974-04-09 Gulf Research Development Co Process for conversion of residual oils
US3730879A (en) * 1970-11-19 1973-05-01 Gulf Research Development Co Two-bed catalyst arrangement for hydrodesulrurization of crude oil
US3714032A (en) * 1970-11-25 1973-01-30 Standard Oil Co Process for treating a high-boiling petroleum hydrocarbon feedstock
US4113661A (en) * 1973-08-09 1978-09-12 Chevron Research Company Method for preparing a hydrodesulfurization catalyst
US3898155A (en) * 1973-12-19 1975-08-05 Gulf Research Development Co Heavy oil demetallization and desulfurization process
US4014821A (en) * 1974-02-07 1977-03-29 Exxon Research And Engineering Company Heavy crude conversion catalyst
US3977961A (en) * 1974-02-07 1976-08-31 Exxon Research And Engineering Company Heavy crude conversion
US3985684A (en) * 1974-02-07 1976-10-12 Exxon Research And Engineering Company Heavy crude conversion
JPS5115046A (ja) * 1974-07-26 1976-02-06 Toyoda Automatic Loom Works Kyuchakukanenbosekisochino sokosukuriin
US4016067A (en) * 1975-02-21 1977-04-05 Mobil Oil Corporation Process for demetalation and desulfurization of petroleum oils
US4054508A (en) * 1975-02-21 1977-10-18 Mobil Oil Corporation Demetalation and desulfurization of residual oil utilizing hydrogen and trickle beds of catalysts in three zones
US3980552A (en) * 1975-05-05 1976-09-14 Union Oil Company Of California Hydrodesulfurization of residual petroleum oil with a sulfided cobalt-molybdenum-alumina catalyst
US4048060A (en) * 1975-12-29 1977-09-13 Exxon Research And Engineering Company Two-stage hydrodesulfurization of oil utilizing a narrow pore size distribution catalyst
US4013547A (en) * 1976-01-22 1977-03-22 Union Oil Company Of California Desulfurization of residual petroleum oils with a catalyst calcined at higher temperatures
US4073718A (en) * 1976-05-12 1978-02-14 Exxon Research & Engineering Co. Process for the hydroconversion and hydrodesulfurization of heavy feeds and residua
US4051021A (en) * 1976-05-12 1977-09-27 Exxon Research & Engineering Co. Hydrodesulfurization of hydrocarbon feed utilizing a silica stabilized alumina composite catalyst
US4119531A (en) * 1977-06-30 1978-10-10 Standard Oil Company (Indiana) Large-pore hydrodemetallization catalyst and process employing same

Also Published As

Publication number Publication date
PL117377B1 (en) 1981-07-31
JPS5518499A (en) 1980-02-08
MX152369A (es) 1985-07-09
FR2433569A1 (fr) 1980-03-14
FR2433569B1 (it) 1984-11-16
NL7905785A (nl) 1980-01-29
DD145541A5 (de) 1980-12-17
AU4861879A (en) 1980-01-31
GB2026533B (en) 1983-03-23
US4212729A (en) 1980-07-15
IT7949810A0 (it) 1979-07-19
AU528419B2 (en) 1983-04-28
DE2930357A1 (de) 1980-02-07
GB2026533A (en) 1980-02-06
PL217385A1 (it) 1980-06-02
JPS6326157B2 (it) 1988-05-28
CA1132078A (en) 1982-09-21
DE2930357C2 (it) 1988-08-04

Similar Documents

Publication Publication Date Title
IT1118127B (it) Procedimento per la demetallizzazione e la desolforazione di idrocarburi pesanti
MX150746A (es) Procedimiento y aparato mejorados para la hidrogenacion de hidrocarburos pesados
IT1086671B (it) Procedimento per la desolforazione selettiva di nafte crackizzate
PL212184A1 (pl) Sposob regeneracji zuzytych olejow
ES494634A0 (es) Procedimiento para la preparacion de compuestos de cefem y cefam
IT1132312B (it) Processo per la preparazione di idrocarburi
ES489628A0 (es) Procedimiento para la obtencion de derivados de tetrahidro- piridina y piperidina
MX5676E (es) Procedimiento mejorado para la preparacion de cicloalcanoles y cicloalcanonas
MX157793A (es) Procedimientos mejorado para la hidrodesintegracion de aceites pesados
IT1126692B (it) Procedimento di separazione di idrocarburi
MX162350A (es) Procedimiento para la produccion de destilados de aceites hidrocarbonados
ES504216A0 (es) Procedimiento y dispositivo para la fabricacion de condensa-dores estratificados
IT1164913B (it) Procedimento di demetallizzazione di materiali idrocarburici
AR225624A1 (es) Composicion catalitica para el craqueo de hidrocarburos y el procedimiento de craqueo donde se aplica dicha composicion
MX162194A (es) Procedimiento para la produccion de destilados de aceites hidrocarbonados
IT1126413B (it) Processo per la preparazione di idrocarburi
MX148049A (es) Procedimiento catalitico mejorado para la desintegracion de aceites de hidrocarburos
IT7827788A0 (it) Procedimento e reattivi perl'individuazione di sostanze cancerogene e di sostanze anticancerose.
ES503316A0 (es) Procedimiento y dispositivo para la destilacion de esquisto bituminoso
AR220383A1 (es) Procedimiento para la preparacion de 2,3,5,6-tetracloropiridina y pentacloropiridina
MX6217E (es) Procedimiento para la preparacion de 4,1-benzoxazepinas y 4,1-benzotiazepinas
IT1126414B (it) Processo per la preparazione di idrocarburi
IT7950352A0 (it) Catalizzatore e procedimento per la idrodemetallizzazione di materiali idrocarburici
BR7900981A (pt) Processo para elaboracao de oleos de xisto contendo substancias solidas ou alcatroes
AR231285A1 (es) Procedimiento para la obtencion de nuevas 2-arilhidrazino-2-tiazolinas y 2-arilazo 2-tiazolinas