SG52259A1 - A method of presulfurizing a catalyst - Google Patents
A method of presulfurizing a catalystInfo
- Publication number
- SG52259A1 SG52259A1 SG1996001485A SG1996001485A SG52259A1 SG 52259 A1 SG52259 A1 SG 52259A1 SG 1996001485 A SG1996001485 A SG 1996001485A SG 1996001485 A SG1996001485 A SG 1996001485A SG 52259 A1 SG52259 A1 SG 52259A1
- Authority
- SG
- Singapore
- Prior art keywords
- presulfurizing
- catalyst
- Prior art date
Links
Classifications
-
- 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
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/06—Sulfides
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/049—Sulfides with chromium, molybdenum, tungsten or polonium with iron group metals or platinum group metals
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/20—Sulfiding
-
- 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
- C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
- C10G49/02—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 characterised by the catalyst used
- C10G49/04—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 characterised by the catalyst used containing nickel, cobalt, chromium, molybdenum, or tungsten metals, or compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/737,630 US5215954A (en) | 1991-07-30 | 1991-07-30 | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
SG52259A1 true SG52259A1 (en) | 1998-09-28 |
Family
ID=24964643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996001485A SG52259A1 (en) | 1991-07-30 | 1992-07-28 | A method of presulfurizing a catalyst |
Country Status (8)
Country | Link |
---|---|
US (4) | US5215954A (de) |
EP (1) | EP0598004B1 (de) |
JP (1) | JP3412764B2 (de) |
CA (1) | CA2114547C (de) |
DE (1) | DE69215877T2 (de) |
SA (1) | SA92130034B1 (de) |
SG (1) | SG52259A1 (de) |
WO (1) | WO1993002793A1 (de) |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5215954A (en) * | 1991-07-30 | 1993-06-01 | Cri International, Inc. | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
FR2689420B1 (fr) * | 1992-04-01 | 1994-06-17 | Eurecat Europ Retrait Catalys | Procede de presulfuration de catalyseur de traitement d'hydrocarbures. |
ZA942966B (en) * | 1993-05-04 | 1995-01-19 | Cri Int Inc | A method of treating spontaneously combustible catalysts. |
US6093309A (en) * | 1993-05-04 | 2000-07-25 | Cri International, Inc. | Method of treating spontaneously combustible catalysts |
US5360779A (en) * | 1993-10-14 | 1994-11-01 | Phillips Petroleum Company | Preparation of supported sulfur compositions |
FR2725381B1 (fr) * | 1994-10-07 | 1996-12-13 | Eurecat Europ Retrait Catalys | Procede de pretraitement hors site d'un catalyseur de traitement d'hydrocarbures |
JPH08129007A (ja) * | 1994-10-31 | 1996-05-21 | Sekiyu Sangyo Kasseika Center | 硫黄分析方法 |
FR2743512B1 (fr) | 1996-01-17 | 1998-03-13 | Eurecat Europ Retrait Catalys | Procede d'incorporation de soufre dans la porosite d'un catalyseur de traitement d'hydrocarbures |
US5786293A (en) * | 1996-06-17 | 1998-07-28 | Shell Oil Company | Process for presulfiding hydrocarbon processing catalysts |
US5821191A (en) * | 1996-06-17 | 1998-10-13 | Shell Oil Company | Process for presulfiding hydrocarbon processing catalysts |
FR2755379B1 (fr) * | 1996-11-07 | 1999-01-08 | Inst Francais Du Petrole | Methode de sulfuration de catalyseurs comprenant au moins un metal du groupe vi et/ou au moins un metal du groupe viii |
FR2758478B1 (fr) | 1997-01-21 | 1999-02-26 | Elf Aquitaine | Procede pour la presulfuration de catalyseurs |
US5958816A (en) * | 1997-02-28 | 1999-09-28 | Tricat, Inc. | Method of presulfiding and passivating a hydrocarbon conversion catalyst |
DE19745191A1 (de) * | 1997-10-13 | 1999-04-15 | Ftu Gmbh Forschung Und Tech En | Mittel, Verfahren zur Herstellung der Mittel und Verwendung der Mittel zur Gasreinigung |
US6444865B1 (en) | 1997-12-01 | 2002-09-03 | Shell Oil Company | Process wherein a hydrocarbon feedstock is contacted with a catalyst |
US6602403B1 (en) | 1998-05-05 | 2003-08-05 | Exxonmobil Chemical Patents Inc. | Process for selectively producing high octane naphtha |
US6315890B1 (en) * | 1998-05-05 | 2001-11-13 | Exxonmobil Chemical Patents Inc. | Naphtha cracking and hydroprocessing process for low emissions, high octane fuels |
US6803494B1 (en) | 1998-05-05 | 2004-10-12 | Exxonmobil Chemical Patents Inc. | Process for selectively producing propylene in a fluid catalytic cracking process |
US6455750B1 (en) | 1998-05-05 | 2002-09-24 | Exxonmobil Chemical Patents Inc. | Process for selectively producing light olefins |
FR2780314B1 (fr) * | 1998-06-25 | 2000-08-11 | Inst Francais Du Petrole | Procede de sulfuration de catalyseurs en presence de carbone et de soufre elementaire |
US6562752B2 (en) * | 1998-06-25 | 2003-05-13 | Institut Francais Du Petrole | Metallic sulphide catalysts, processes for synthesising said catalysts and use thereof |
FR2780303B1 (fr) | 1998-06-25 | 2000-07-28 | Inst Francais Du Petrole | Procede de sulfuration de catalyseurs en milieu reducteur et utilisation du catalyseur sulfure dans des reactions de raffinage ou d'hydroconversion |
FR2784312B1 (fr) * | 1998-10-12 | 2000-11-10 | Eurecat Europ Retrait Catalys | Presulfuration hors site en presence de molecule hydrocarbonee |
US6291391B1 (en) | 1998-11-12 | 2001-09-18 | Ifp North America, Inc. | Method for presulfiding and preconditioning of residuum hydroconversion catalyst |
US6365542B1 (en) * | 1999-01-25 | 2002-04-02 | China Petrochemical Corporation And Research Institute Of Petroleum Processing | Presulfurization method of hydrogenation catalyst |
CN1107707C (zh) * | 1999-01-25 | 2003-05-07 | 中国石油化工集团公司 | 一种加氢催化剂的预硫化方法 |
US6281158B1 (en) | 1999-02-15 | 2001-08-28 | Shell Oil Company | Preparation of a co-containing hydrotreating catalyst precursor and catalyst |
US6218333B1 (en) | 1999-02-15 | 2001-04-17 | Shell Oil Company | Preparation of a hydrotreating catalyst |
AU5399100A (en) | 1999-05-28 | 2000-12-18 | Shell Internationale Research Maatschappij B.V. | Process to prepare a lubricating base oil |
CA2412363C (en) * | 2000-06-19 | 2010-03-30 | James B. Mac Arthur | Method for presulfiding and preconditioning of residuum hydroconversion catalyst |
CA2444575A1 (en) | 2001-04-19 | 2002-10-31 | Shell Internationale Research Maatschappij B.V. | Process to prepare a base oil having a high saturates content |
US6918442B2 (en) | 2001-04-24 | 2005-07-19 | Shell Oil Company | In situ thermal processing of an oil shale formation in a reducing environment |
JP2005505681A (ja) | 2001-10-16 | 2005-02-24 | 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 | 予備処理した使用済み油の品質向上 |
CA2462971C (en) | 2001-10-24 | 2015-06-09 | Shell Canada Limited | Installation and use of removable heaters in a hydrocarbon containing formation |
US7173160B2 (en) * | 2002-07-18 | 2007-02-06 | Chevron U.S.A. Inc. | Processes for concentrating higher diamondoids |
US20050085378A1 (en) * | 2003-09-11 | 2005-04-21 | Peter Birke | Particulate catalyst comprising pyrophoric metal and stabilized by wax |
US7591941B2 (en) | 2003-12-19 | 2009-09-22 | Shell Oil Company | Systems, methods, and catalysts for producing a crude product |
US7745369B2 (en) | 2003-12-19 | 2010-06-29 | Shell Oil Company | Method and catalyst for producing a crude product with minimal hydrogen uptake |
US8025791B2 (en) | 2003-12-19 | 2011-09-27 | Shell Oil Company | Systems and methods of producing a crude product |
NL1027772C2 (nl) | 2003-12-19 | 2006-08-29 | Shell Int Research | Systemen, methoden en katalysatoren voor het produceren van een ruwe-oliehoudend product. |
RU2372991C2 (ru) * | 2004-01-20 | 2009-11-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Способ восстановления каталитической активности отработанного катализатора водородообработки, отработанный катализатор водородообработки, имеющий восстановленную каталитическую активность, и способ водородообработки |
KR20060129391A (ko) * | 2004-01-20 | 2006-12-15 | 셀 인터나쵸나아레 레사아치 마아츠샤피 비이부이 | 소모된 수소처리 촉매의 촉매 활성을 복원하는 방법, 촉매활성이 복원된 소모된 수소처리 촉매 및 수소처리 방법 |
US7678731B2 (en) * | 2004-09-10 | 2010-03-16 | Chevron Usa Inc. | Hydroprocessing bulk catalyst and uses thereof |
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 |
EP1885822A2 (de) * | 2005-04-11 | 2008-02-13 | Shell Internationale Research Maatschappij B.V. | Systeme, verfahren und katalysatoren zur herstellung eines rohprodukts |
CN101166808B (zh) | 2005-04-11 | 2013-03-27 | 国际壳牌研究有限公司 | 生产具有降低mcr含量的原油产品的方法和催化剂 |
US8507404B2 (en) | 2005-07-12 | 2013-08-13 | Exxonmobil Research And Engineering Company | Regenerable sulfur traps for on-board vehicle applications |
AU2006306476B2 (en) | 2005-10-24 | 2010-08-19 | Shell Internationale Research Maatschappij B.V. | Methods of cracking a crude product to produce additional crude products |
EP2010754A4 (de) | 2006-04-21 | 2016-02-24 | Shell Int Research | Einstellende legierungszusammensetzungen für ausgewählte eigenschaften in temperaturbegrenzten heizern |
MY142437A (en) | 2006-07-21 | 2010-11-30 | China Petroleum & Chemical | Hydrogenation catalyst composition, process for preparing the same and use thereof |
US20080083650A1 (en) | 2006-10-06 | 2008-04-10 | Bhan Opinder K | Methods for producing a crude product |
RU2447275C2 (ru) | 2006-10-20 | 2012-04-10 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Нагревание пластов битуминозных песков с регулированием давления |
AU2008242797B2 (en) | 2007-04-20 | 2011-07-14 | Shell Internationale Research Maatschappij B.V. | In situ recovery from residually heated sections in a hydrocarbon containing formation |
WO2009052054A1 (en) | 2007-10-19 | 2009-04-23 | Shell Oil Company | Systems, methods, and processes utilized for treating subsurface formations |
CN101418236B (zh) * | 2007-10-26 | 2012-09-05 | 中国石油化工股份有限公司 | 一种烃类加氢方法 |
US8262905B2 (en) * | 2009-03-19 | 2012-09-11 | Shell Oil Company | Oil and polar additive impregnated composition useful in the catalytic hydroprocessing of hydrocarbons, a method of making such catalyst, and a process of using such catalyst |
CN101665745B (zh) * | 2009-09-16 | 2012-02-22 | 长春惠工净化工业有限公司 | 加氢精制催化剂器外预硫化方法 |
US9132421B2 (en) | 2009-11-09 | 2015-09-15 | Shell Oil Company | Composition useful in the hydroprocessing of a hydrocarbon feedstock |
US8268251B2 (en) * | 2010-03-29 | 2012-09-18 | International Business Machines Corporation | Early warning sulfur detection based on change in fluorescence intensity of polymer-bound phosphine compound |
CN103805235B (zh) * | 2012-11-03 | 2015-07-22 | 中国石油化工股份有限公司 | 加氢装置的湿法开工方法、低能耗加氢工艺及加氢设备 |
US9266056B2 (en) | 2013-05-07 | 2016-02-23 | Uop Llc | Process for initiating operations of a separation apparatus |
EP2944367A1 (de) | 2014-05-16 | 2015-11-18 | Shell International Research Maatschappij B.V. | Verfahren zum Reduzieren des Gesamtschwefelgehalts eines Gasstroms |
CN106140320B (zh) * | 2015-05-14 | 2018-09-04 | 中国石油天然气股份有限公司 | 低沸点硫化物重质化催化剂的钝化方法 |
CN106147842B (zh) * | 2015-05-14 | 2018-08-10 | 中国石油天然气股份有限公司 | 一种含分子筛汽油加氢改质催化剂的钝化开工方法 |
CN106147829B (zh) * | 2015-05-14 | 2018-08-10 | 中国石油天然气股份有限公司 | 含分子筛汽油加氢改质催化剂的开工方法 |
CN106147828B (zh) * | 2015-05-14 | 2018-10-16 | 中国石油天然气股份有限公司 | 一种含分子筛低沸点硫化物重质化催化剂的开工方法 |
EP3347438B1 (de) | 2015-09-07 | 2020-02-12 | Shell International Research Maatschappij B.V. | Umwandlung von biomasse in ein flüssiges kohlenwasserstoffmaterial |
WO2018064990A1 (es) * | 2016-10-03 | 2018-04-12 | Ecopetrol S.A. | Metodo de fabricacion de catalizadores a base de catalizadores de hidrotratamiento desactivados y su aplicacion en un proceso de hidrocraqueo en lecho disperso |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA759938A (en) * | 1967-05-30 | D. Holmes Peter | Catalysts and reactors containing said catalysts | |
US2038599A (en) * | 1931-01-30 | 1936-04-28 | Standard Ig Co | Carrying out catalytic reactions |
US3383301A (en) * | 1966-01-20 | 1968-05-14 | Gulf Research Development Co | Residue desulfurization with catalyst whose pore volume is distributed over wide range of pore sizes |
BE794334A (fr) * | 1972-01-20 | 1973-07-19 | Unilever Nv | Catalyseur metallique sulfure depose sur un support |
US4089930A (en) * | 1976-02-12 | 1978-05-16 | New England Power Service Company | Process for the catalytic reduction of nitric oxide |
US4177136B1 (en) * | 1978-01-03 | 1994-05-03 | Standard Oil Co Ohio | Hydrotreating process utilizing elemental sulfur for presulfiding the catalyst |
FR2503733B1 (fr) * | 1981-04-09 | 1985-09-06 | Inst Francais Du Petrole | Procede d'hydrotraitement d'une charge hydrocarbonee en presence d'un catalyseur soumis a une presulfuration |
US4368141A (en) * | 1981-06-24 | 1983-01-11 | Phillips Petroleum Company | Olefin disproportionation and catalyst therefor |
US4431747A (en) * | 1982-07-20 | 1984-02-14 | Exxon Research And Engineering Co. | Supported carbon-containing molybdenum and tungsten sulfide catalysts, their preparation and use |
FR2548205B1 (fr) * | 1983-06-30 | 1985-11-29 | Eurecat Europ Retrait Catalys | Procede de presulfuration de catalyseur de traitement d'hydrocarbures |
US4548920A (en) * | 1984-03-26 | 1985-10-22 | Shell Oil Company | Hydrodenitrification catalyst |
US4672049A (en) * | 1984-10-25 | 1987-06-09 | Mobil Oil Corporation | Hydroprocessing catalyst |
US4934547A (en) * | 1987-02-10 | 1990-06-19 | Helena Laboratories Corporation | Specimen collection container and non-removable cover |
US5051389A (en) * | 1987-09-16 | 1991-09-24 | Exxon Research And Engineering Company | Catalyst composition prepared by vapor depositing onto a carbon support |
US4943547A (en) * | 1988-09-13 | 1990-07-24 | Seamans James D | Method of presulfiding a hydrotreating catalyst |
US5041404A (en) * | 1988-09-13 | 1991-08-20 | Cri Ventures, Inc. | Method of presulfiding a hydrotreating, hydrocracking or tail gas treating catalyst |
US5053376A (en) * | 1990-06-04 | 1991-10-01 | Exxon Research & Engineering Company | Method of preparing a sulfided molybdenum catalyst concentrate |
US5215954A (en) * | 1991-07-30 | 1993-06-01 | Cri International, Inc. | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst |
-
1991
- 1991-07-30 US US07/737,630 patent/US5215954A/en not_active Expired - Lifetime
-
1992
- 1992-07-28 DE DE69215877T patent/DE69215877T2/de not_active Expired - Lifetime
- 1992-07-28 CA CA002114547A patent/CA2114547C/en not_active Expired - Lifetime
- 1992-07-28 EP EP92917231A patent/EP0598004B1/de not_active Expired - Lifetime
- 1992-07-28 WO PCT/US1992/006263 patent/WO1993002793A1/en active IP Right Grant
- 1992-07-28 JP JP50368993A patent/JP3412764B2/ja not_active Expired - Lifetime
- 1992-07-28 SA SA92130034A patent/SA92130034B1/ar unknown
- 1992-07-28 SG SG1996001485A patent/SG52259A1/en unknown
- 1992-10-30 US US07/969,660 patent/US5292702A/en not_active Expired - Lifetime
-
1993
- 1993-12-13 US US08/166,133 patent/US5468372A/en not_active Expired - Lifetime
-
1995
- 1995-10-26 US US08/548,570 patent/US5688736A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3412764B2 (ja) | 2003-06-03 |
US5688736A (en) | 1997-11-18 |
US5292702A (en) | 1994-03-08 |
EP0598004B1 (de) | 1996-12-11 |
CA2114547C (en) | 1998-09-22 |
US5215954A (en) | 1993-06-01 |
JPH06509278A (ja) | 1994-10-20 |
US5468372A (en) | 1995-11-21 |
SA92130034B1 (ar) | 2005-11-15 |
WO1993002793A1 (en) | 1993-02-18 |
DE69215877T2 (de) | 1997-07-10 |
CA2114547A1 (en) | 1993-02-18 |
EP0598004A1 (de) | 1994-05-25 |
DE69215877D1 (de) | 1997-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SG52259A1 (en) | A method of presulfurizing a catalyst | |
EP0523014A3 (en) | A catalytic method of hyrogenating glycerol | |
EP0535986A3 (en) | Method of operating a processor | |
GB2270236B (en) | Method of operating a communications system | |
GB9117899D0 (en) | Process for the activation of a catalyst | |
ZA931328B (en) | Method of preparing a foodstuff | |
KR100214908B1 (en) | A reduction method for substituted 5-methylene-thiazolidinediones | |
PL288605A1 (en) | Method of obtaining a catalyst of ziegler-natty type | |
PL302315A1 (en) | Method of obtaining a catalyst | |
GB9117948D0 (en) | Process for the activation of a catalyst | |
EP0519734A3 (en) | Method of urethanating reaction | |
GB9117898D0 (en) | Process for the activation of a catalyst | |
GB9301255D0 (en) | A method of filling a borchole | |
EP0543257A3 (en) | Method of manufacturing a power-misfet | |
ZA934949B (en) | A reactor | |
GB2394222B (en) | A method of making a polynitramine | |
GB2263182B (en) | A polling method | |
GB9119885D0 (en) | Catalytic reactor | |
PL288713A2 (en) | Method of obtaining a vanadium-manganese catalyst | |
GB2226331B (en) | A method of oxidation | |
PL288053A1 (en) | Method of obtaining a molybdenum-nickel-zeolite catalyst | |
PL284564A1 (en) | Method of obtaining a catalyst | |
GB9111864D0 (en) | A method of connection | |
PL294168A1 (en) | Method of obtaining a palladium catalyst | |
PL309050A1 (en) | Method of obtaining a finasterid |