IN170964B - - Google Patents

Info

Publication number
IN170964B
IN170964B IN539/DEL/87A IN539DE1987A IN170964B IN 170964 B IN170964 B IN 170964B IN 539DE1987 A IN539DE1987 A IN 539DE1987A IN 170964 B IN170964 B IN 170964B
Authority
IN
India
Application number
IN539/DEL/87A
Other languages
English (en)
Inventor
Mark David Moser
Randy Joe Lawson
Original Assignee
Uop Inc
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 Uop Inc filed Critical Uop Inc
Publication of IN170964B publication Critical patent/IN170964B/en

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
    • B01J23/62—Platinum group metals with gallium, indium, thallium, germanium, tin or lead
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/396—Distribution of the active metal ingredient
    • B01J35/397—Egg shell like
    • 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
    • B01J23/62—Platinum group metals with gallium, indium, thallium, germanium, tin or lead
    • B01J23/622—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead
    • B01J23/624—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead with germanium
    • 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
    • B01J23/62—Platinum group metals with gallium, indium, thallium, germanium, tin or lead
    • B01J23/622—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead
    • B01J23/626—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead with tin
    • 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
    • B01J23/62—Platinum group metals with gallium, indium, thallium, germanium, tin or lead
    • B01J23/622—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead
    • B01J23/628—Platinum group metals with gallium, indium, thallium, germanium, tin or lead with germanium, tin or lead with lead
    • 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
    • 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
    • B01J23/8966—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 germanium, tin or lead
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/396—Distribution of the active metal ingredient
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/396—Distribution of the active metal ingredient
    • B01J35/399—Distribution of the active metal ingredient homogeneously throughout the support particle
    • 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
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (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)
  • Polyethers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Disintegrating Or Milling (AREA)
  • Glass Compositions (AREA)
  • Polymerisation Methods In General (AREA)
  • Hydrogen, Water And Hydrids (AREA)
IN539/DEL/87A 1986-09-22 1987-06-25 IN170964B (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/910,099 US4677094A (en) 1986-09-22 1986-09-22 Trimetallic reforming catalyst

Publications (1)

Publication Number Publication Date
IN170964B true IN170964B (ko) 1992-06-20

Family

ID=25428309

Family Applications (1)

Application Number Title Priority Date Filing Date
IN539/DEL/87A IN170964B (ko) 1986-09-22 1987-06-25

Country Status (25)

Country Link
US (1) US4677094A (ko)
EP (1) EP0261785B1 (ko)
JP (1) JPS6393352A (ko)
KR (1) KR900004492B1 (ko)
CN (2) CN1009804B (ko)
AT (1) ATE77572T1 (ko)
AU (1) AU601220B2 (ko)
BG (1) BG81241A (ko)
CA (1) CA1299161C (ko)
CS (1) CS274458B2 (ko)
DD (1) DD281968A5 (ko)
DE (1) DE3779985T2 (ko)
ES (1) ES2032830T3 (ko)
FI (1) FI874114A (ko)
HU (1) HU201484B (ko)
IN (1) IN170964B (ko)
MX (1) MX165236B (ko)
MY (1) MY101980A (ko)
NO (1) NO873942L (ko)
NZ (1) NZ221363A (ko)
PH (1) PH26593A (ko)
PT (1) PT85767B (ko)
RU (1) RU1797496C (ko)
TR (1) TR23037A (ko)
ZA (1) ZA875432B (ko)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737483A (en) * 1986-09-22 1988-04-12 Uop Inc. Trimetallic reforming catalyst
US4923595A (en) * 1986-09-22 1990-05-08 Uop Trimetallic reforming catalyst
US4791087A (en) * 1986-09-22 1988-12-13 Uop Inc. Trimetallic reforming catalyst
CA2055929A1 (en) * 1990-12-14 1992-06-15 William C. Baird, Jr. Process for reforming at low severities with high activity, high yield tin modified platinum-iridium catalysts
US5221465A (en) * 1990-12-14 1993-06-22 Exxon Research And Engineering Company High activity, high yield tin modified platinum-iridium catalysts, and reforming process utilizing such catalysts
US5106809A (en) * 1990-12-14 1992-04-21 Exxon Research And Engineering Company High activity, high yield tin modified platinum-iridium catalysts, and reforming process utilizing such catalysts
US5269907A (en) * 1990-12-14 1993-12-14 Exxon Research And Engineering Co. Process for reforming at low severities with high-activity, high-yield, tin modified platinum-iridium catalysts
CA2064520A1 (en) * 1991-05-06 1992-11-07 William C. Baird, Jr. Low pressure, semi-regenerative reforming process
FR2682949B1 (fr) * 1991-10-24 1993-12-17 Rhone Poulenc Chimie Procede de synthese d'aldehydes.
US5382350A (en) * 1992-10-16 1995-01-17 Uop High hydrogen and low coke reforming process
US5464800A (en) * 1992-11-12 1995-11-07 Uop Stable, high-yield reforming catalyst
US5755956A (en) * 1992-11-12 1998-05-26 Uop Stable, high-yield reforming catalyst
AU668645B2 (en) * 1992-11-12 1996-05-09 Uop Multimetallic and multigradient reforming catalyst for converting paraffins to aromatics
US5314854A (en) * 1992-11-12 1994-05-24 Uop Stable, high-yield reforming catalyst
US5366617A (en) * 1992-12-28 1994-11-22 Uop Selective catalytic reforming with high-stability catalyst
US5461016A (en) * 1992-12-28 1995-10-24 Uop High-stability catalyst containing a platinum group metal and nickel on zeolite L and a binder
FR2726486B1 (fr) * 1994-11-07 1997-01-24 Eurecat Europ Retrait Catalys Procede de regeneration hors site de catalyseur comprenant au moins un metal precieux
FR2735396B1 (fr) * 1995-06-16 1997-08-22 Inst Francais Du Petrole Catalyseurs utilisables dans les reactions de transformation d'hydrocarbures et contenant du titane, zirconium, hafnium, cobalt, nickel et/ou zinc
CN1055106C (zh) * 1995-06-16 2000-08-02 法国石油公司 用于烃转化反应的含有一种加入金属的催化剂
FR2735389B1 (fr) * 1995-06-16 1997-08-22 Inst Francais Du Petrole Catalyseurs utilisables dans les reactions de transformation d'hydrocarbures
FR2735388B1 (fr) * 1995-06-16 1997-08-22 Inst Francais Du Petrole Catalyseurs contenant du silicium et du titane, zirconium, hafnium, cobalt, nickel et/ou zinc, utilisables dans les reactions de transformation d'hydrocarbures
CN1088623C (zh) 1995-06-16 2002-08-07 法国石油公司 用于烃类转化反应的含硅催化剂
FR2753984B1 (fr) * 1996-10-02 1999-05-28 Inst Francais Du Petrole Procede de conversion d'une fraction lourde d'hydrocarbures impliquant une hydrodemetallisation en lit bouillonnant de catalyseur
CA2217145A1 (en) * 1996-11-12 1998-05-12 Phillips Petroleum Company An improved zeolite material and the use thereof in the conversion of non-aromatic hydrocarbons to aromatics and light olefins
US5800696A (en) * 1996-11-12 1998-09-01 Phillips Petroleum Company Method for inhibiting the rate of coke formation during the zeolite catalyzed aromatization of hydrocarbons
US5883032A (en) * 1996-11-21 1999-03-16 Uop Llc Selective multimetallic multigradient reforming catalyst
US6132595A (en) * 1996-11-21 2000-10-17 Uop Llc Reforming with selective multimetallic multigradient catalyst
CN1075106C (zh) * 1997-09-08 2001-11-21 环球油品公司 有选择性的双功能多金属烃类转化催化剂组合物及其使用方法
FR2770420B1 (fr) * 1997-10-31 1999-12-03 Inst Francais Du Petrole Lit homogene de catalyseur et procede de transformation d'hydrocarbures en composes aromatiques avec ledit lit
CN1108189C (zh) * 1999-07-09 2003-05-14 浙江大学 甲烷二氧化碳重整制合成气的催化剂及其制备方法和用途
CN1091134C (zh) * 1999-09-29 2002-09-18 中国石油化工集团公司 一种渣油加氢转化催化剂及其制备方法
US6503866B1 (en) * 2000-06-05 2003-01-07 Uop Llc Attrition resistant catalyst with reduced surface area
US6514904B1 (en) 2000-06-05 2003-02-04 Uop Llc Hydrocarbon conversion catalyst and process of using thereof
US6548444B2 (en) * 2001-06-20 2003-04-15 Eastman Chemical Company Tin promoted iridium catalyst for carbonylation of lower alkyl alcohols
US20040147619A1 (en) * 2003-01-23 2004-07-29 Conocophillips Company Chlorine-containing synthesis gas catalyst
US20050113614A1 (en) * 2003-11-24 2005-05-26 Lowe David M. Catalyst and process for selective hydrogenation
US7220701B2 (en) * 2003-11-24 2007-05-22 Exxonmobil Chemical Patents Inc. Catalyst and process for selective hydrogenation
US7199273B2 (en) * 2003-11-24 2007-04-03 Exxonmobil Chemical Patents, Inc. Selective hydrogenation of alkynes and/or diolefins
US7220700B2 (en) 2003-11-24 2007-05-22 Exxonmobil Chemical Patents Inc. Catalyst and process for selective hydrogenation
US20060102520A1 (en) * 2004-11-12 2006-05-18 Lapinski Mark P Reforming process using high density catalyst
ES2335035T3 (es) 2005-07-27 2010-03-18 Chevron Phillips Chemical Company Lp Metodo para fabricar y usar un catalizador de hidrogenacion selectiva.
CN101454077B (zh) * 2006-09-29 2014-02-26 株式会社科特拉 铑担载用溶液及用该溶液制备的铑催化剂
CN101633850B (zh) * 2008-07-24 2012-10-10 中国石油化工股份有限公司 一种催化重整催化剂的制备方法
US20100116714A1 (en) * 2008-11-12 2010-05-13 Lapinski Mark P Process and System for the Addition of Promoter Metal In Situ in a Catalytic Reforming Unit
US20120277511A1 (en) * 2011-04-29 2012-11-01 Uop Llc High Temperature Platformer
US8758599B2 (en) * 2011-07-15 2014-06-24 Uop Llc Reforming catalyst and process
US20150045597A1 (en) 2013-08-07 2015-02-12 Uop Llc Integrated process for gasoline or aromatics production
US9199893B2 (en) 2014-02-24 2015-12-01 Uop Llc Process for xylenes production
CN105562043B (zh) * 2014-10-10 2017-12-22 中国石油化工股份有限公司 一种多金属重整催化剂的制备方法
FR3088338B1 (fr) * 2018-11-08 2021-10-29 Ifp Energies Now Procede de reformage en lit fixe utilisant un catalyseur de forme particuliere

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FR2130881A6 (en) * 1969-02-14 1972-11-10 Raffinage Cie Francaise Hydroreforming catalyst
US3764557A (en) * 1969-10-09 1973-10-09 Chevron Res Catalyst activation process and activated catalyst
US3651167A (en) * 1970-08-03 1972-03-21 Universal Oil Prod Co Selective hydrogenation of c4-acetylenic hydrocarbons
GB1390182A (en) * 1971-03-16 1975-04-09 Johnson Matthey Co Ltd Catalysis
US3909394A (en) * 1972-09-21 1975-09-30 Universal Oil Prod Co Catalytic reforming with a catalyst containing platinum or palladium and ruthenium
US3898154A (en) * 1973-07-05 1975-08-05 Universal Oil Prod Co Hydrocarbon conversion with a multimetallic catalytic composite
JPS5814258B2 (ja) * 1974-04-19 1983-03-18 トウアネンリヨウコウギヨウ カブシキガイシヤ タンカスイソテンカヨウシヨクバイ ノ セイホウ
US3960710A (en) * 1974-11-08 1976-06-01 Universal Oil Products Company Hydrocarbon conversion with an acidic multimetallic catalytic composite
US4083806A (en) * 1975-01-06 1978-04-11 Universal Oil Products Company Hydrocarbon conversion with an acidic, sulfur-free trimetallic catalytic composite
US4256566A (en) * 1977-09-14 1981-03-17 Uop Inc. Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite
US4268377A (en) * 1977-11-04 1981-05-19 Uop Inc. Hydrocarbon conversion with an activated multimetallic catalytic composite
US4312789A (en) * 1979-08-20 1982-01-26 Uop Inc. Attenuated superactive multimetallic catalytic composite
US4431750A (en) * 1982-05-19 1984-02-14 Phillips Petroleum Company Platinum group metal catalyst on the surface of a support and a process for preparing same

Also Published As

Publication number Publication date
ES2032830T3 (es) 1993-03-01
HUT44450A (en) 1988-03-28
DE3779985T2 (de) 1992-12-10
ZA875432B (en) 1988-03-30
US4677094A (en) 1987-06-30
HU201484B (en) 1990-11-28
AU601220B2 (en) 1990-09-06
KR900004492B1 (ko) 1990-06-28
MY101980A (en) 1992-02-29
DE3779985D1 (de) 1992-07-30
CS274458B2 (en) 1991-04-11
DD281968A5 (de) 1990-08-29
TR23037A (tr) 1989-01-24
BG81241A (bg) 1993-12-24
ATE77572T1 (de) 1992-07-15
CN1020918C (zh) 1993-05-26
AU7881587A (en) 1988-03-24
CS675787A2 (en) 1990-09-12
EP0261785A2 (en) 1988-03-30
NO873942L (no) 1988-03-23
RU1797496C (ru) 1993-02-23
EP0261785B1 (en) 1992-06-24
FI874114A0 (fi) 1987-09-21
KR880004068A (ko) 1988-06-01
CN87106454A (zh) 1988-06-01
PT85767B (pt) 1990-07-31
MX165236B (es) 1992-11-03
EP0261785A3 (en) 1989-01-11
CN1009804B (zh) 1990-10-03
CN1044488A (zh) 1990-08-08
PH26593A (en) 1992-08-19
PT85767A (en) 1987-10-01
CA1299161C (en) 1992-04-21
JPS6393352A (ja) 1988-04-23
FI874114A (fi) 1988-03-23
NZ221363A (en) 1990-06-26

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