KR890009440A - 구조화된 팩킹을 사용한 아르곤/산소 혼합물의 분리공정 - Google Patents
구조화된 팩킹을 사용한 아르곤/산소 혼합물의 분리공정 Download PDFInfo
- Publication number
- KR890009440A KR890009440A KR1019880016622A KR880016622A KR890009440A KR 890009440 A KR890009440 A KR 890009440A KR 1019880016622 A KR1019880016622 A KR 1019880016622A KR 880016622 A KR880016622 A KR 880016622A KR 890009440 A KR890009440 A KR 890009440A
- Authority
- KR
- South Korea
- Prior art keywords
- argon
- oxygen
- stream
- distillation column
- nitrogen
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04896—Details of columns, e.g. internals, inlet/outlet devices
- F25J3/04915—Combinations of different material exchange elements, e.g. within different columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04896—Details of columns, e.g. internals, inlet/outlet devices
- F25J3/04909—Structured packings
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/326—Mathematical modelling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/10—Mathematical formulae, modeling, plot or curves; Design methods
-
- 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
- Y10S62/00—Refrigeration
- Y10S62/902—Apparatus
- Y10S62/905—Column
- Y10S62/906—Packing
-
- 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
- Y10S62/00—Refrigeration
- Y10S62/923—Inert gas
- Y10S62/924—Argon
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 아르곤 및 산소 생성물을 생성하는 일반적인 3개의 탑 공기 분리 공정의 다이아그램이며,
제 2 도는 관계식에 의한 예측값에 대한 총 기체상 물질전달 계수를 플럿트화한 것이며
제 3 도는 산소/아르곤 분리를 위해 밀도 표면 기체 속도에 대한 아론적 플레이트와 동일한 고도를 플럿트화 한 것이다.
Claims (4)
- 적어도 하나의 탑을 함유하는 증류탑 시스템의 어떤 지역에서 산호, 아르곤 및 질소를 함유화는 액체상 스트림과 산소, 아르곤 및 질소를 함유하는 기체상 스트림을 친밀히 접촉시키고, 액체상 스트림이 산소로 품부하게 되고 액체상 스트림으로부터 아르곤을 제거하고 아르곤을 증기상 스트림을 풍부하게 하고 증기상 스트림으로부터 산소를 제거하는 물질전달을 일으켜 산소, 질소 및 아르곤함유의 혼합물을 분리하는 공정에 있어서, 아르곤 농도가 약 0.6-약 75부피%의 범주인 증류탑 시스템의 지역에서 구조화된 팩킹을 이용하는 액체 및 기체상 스트림을 친밀히 접촉시키고 이러한 지역에서의 밀도표면기체속도가 1초당 적어도 0.06ft인 공정을 수행하는 것을 특징으로 하는 산소, 질소 및 아르곤 함유 혼합물의 분리공정.
- 제 1 항에 있어서, 혼합물은 공기인 것을 특징으로 하는 공정.
- 적어도 하나의 탑을 함유 하는 증류탑 시스템의 어떤 지역에서 산소, 아르곤을 함유하는 엑체상 스트림과 산소, 아르곤 및 질소를 함유하는 기체상 스트림을 친밀히 접촉시키고, 액체상 스트림이 산소로 풍부하게 되고 액체상 스트림으로부터 아르곤을 제거하고 아르곤으로 증기상 스트림을 풍부하게 하고 증기상 스트림으로부터 산소를 제거하는 물질전달을 일으켜, 산소, 아르곤함유의 혼합물을 분리하는 공정에 있어서 아르곤 농도가 약 0.6- 약 75부피%의 범주인 증류탑 시스템의 지역에서 구조화된 팩킹을 이용하는 액체 및 기체상 스트림을 친밀히 접촉시키고 이러한 지역에서의 밀도표면기체속도가 1 초당 적어도 0.06ft인 공정을 수행하는 것을 특징으로 하는 산소, 아르곤 함유 혼합물의 분리공정.
- 아르곤 농도가 약 0.6- 약 75부피%인 증류탑 시스템의 적어도 한 지점에서 구조화된 팩킹을 증류 트레이 대신 사용되는 단계를 포함하여 산소 및 아르곤 함유 혼합물 분리를 위한 적어도 하나의 증류탑을 갖는 저온증류장치를 개선시키는 공정※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US132535 | 1987-12-14 | ||
US07/132,535 US4836836A (en) | 1987-12-14 | 1987-12-14 | Separating argon/oxygen mixtures using a structured packing |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890009440A true KR890009440A (ko) | 1989-08-02 |
KR910002167B1 KR910002167B1 (ko) | 1991-04-06 |
Family
ID=22454484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880016622A KR910002167B1 (ko) | 1987-12-14 | 1988-12-14 | 구조화된 팩킹을 사용한 아르곤/산소 혼합물의 분리방법 |
Country Status (12)
Country | Link |
---|---|
US (1) | US4836836A (ko) |
EP (1) | EP0321163B1 (ko) |
JP (1) | JPH07113514B2 (ko) |
KR (1) | KR910002167B1 (ko) |
CA (1) | CA1280964C (ko) |
DE (1) | DE3855487T2 (ko) |
DK (1) | DK166105C (ko) |
ES (1) | ES2092985T3 (ko) |
FI (1) | FI89410B (ko) |
MX (1) | MX165562B (ko) |
NO (1) | NO169197C (ko) |
ZA (1) | ZA889359B (ko) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3840506A1 (de) * | 1988-12-01 | 1990-06-07 | Linde Ag | Verfahren und vorrichtung zur luftzerlegung |
KR960003274B1 (ko) * | 1990-01-23 | 1996-03-07 | 유니온 카바이드 인더스트리얼 개시즈 테크놀로지 코포레이션 | 혼성아르곤컬럼을 갖는 저온공기분리시스템 |
US5019144A (en) * | 1990-01-23 | 1991-05-28 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation system with hybrid argon column |
US5076823A (en) * | 1990-03-20 | 1991-12-31 | Air Products And Chemicals, Inc. | Process for cryogenic air separation |
GB9008752D0 (en) * | 1990-04-18 | 1990-06-13 | Boc Group Plc | Air separation |
US5129932A (en) * | 1990-06-12 | 1992-07-14 | Air Products And Chemicals, Inc. | Cryogenic process for the separation of air to produce moderate pressure nitrogen |
US5077978A (en) * | 1990-06-12 | 1992-01-07 | Air Products And Chemicals, Inc. | Cryogenic process for the separation of air to produce moderate pressure nitrogen |
US5098456A (en) * | 1990-06-27 | 1992-03-24 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation system with dual feed air side condensers |
US5114452A (en) * | 1990-06-27 | 1992-05-19 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation system for producing elevated pressure product gas |
US5108476A (en) * | 1990-06-27 | 1992-04-28 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation system with dual temperature feed turboexpansion |
US5148680A (en) * | 1990-06-27 | 1992-09-22 | Union Carbide Industrial Gases Technology Corporation | Cryogenic air separation system with dual product side condenser |
US5100448A (en) * | 1990-07-20 | 1992-03-31 | Union Carbide Industrial Gases Technology Corporation | Variable density structured packing cryogenic distillation system |
US5159816A (en) * | 1991-05-14 | 1992-11-03 | Air Products And Chemicals, Inc. | Method of purifying argon through cryogenic adsorption |
US5133790A (en) * | 1991-06-24 | 1992-07-28 | Union Carbide Industrial Gases Technology Corporation | Cryogenic rectification method for producing refined argon |
US5161380A (en) * | 1991-08-12 | 1992-11-10 | Union Carbide Industrial Gases Technology Corporation | Cryogenic rectification system for enhanced argon production |
FR2689223B1 (fr) † | 1992-03-24 | 1994-05-06 | Air Liquide | Procede et installation de transfert de fluide en provenance d'une colonne de distillation, notamment d'air. |
JPH06307762A (ja) * | 1993-04-22 | 1994-11-01 | Kobe Steel Ltd | アルゴンの製造装置 |
DE4317916A1 (de) * | 1993-05-28 | 1994-12-01 | Linde Ag | Verfahren und Vorrichtung zur Gewinnung von Argon |
DE4406051A1 (de) * | 1994-02-24 | 1995-08-31 | Linde Ag | Verfahren und Vorrichtung zur Gewinnung von reinem Argon |
US5396772A (en) * | 1994-03-11 | 1995-03-14 | The Boc Group, Inc. | Atmospheric gas separation method |
US5522224A (en) * | 1994-08-15 | 1996-06-04 | Praxair Technology, Inc. | Model predictive control method for an air-separation system |
JP3319174B2 (ja) | 1994-09-19 | 2002-08-26 | 株式会社日立製作所 | 充填物及び空気分離装置 |
US5557951A (en) * | 1995-03-24 | 1996-09-24 | Praxair Technology, Inc. | Process and apparatus for recovery and purification of argon from a cryogenic air separation unit |
DE69631467T2 (de) * | 1995-06-20 | 2004-12-02 | Nippon Sanso Corp. | Verfahren und vorrichtung zur abtrennung von argon |
US5644932A (en) * | 1996-05-21 | 1997-07-08 | Air Products And Chemicals, Inc. | Use of structured packing in a multi-sectioned air seperation unit |
US5857357A (en) * | 1997-07-18 | 1999-01-12 | Praxair Technology, Inc. | Column configuration and method for argon production |
US5921109A (en) * | 1998-10-21 | 1999-07-13 | Praxair Technology, Inc. | Method for operating a cryogenic rectification column |
US6357728B1 (en) | 1999-03-15 | 2002-03-19 | Air Products And Chemicals, Inc. | Optimal corrugated structured packing |
US6128922A (en) * | 1999-05-21 | 2000-10-10 | The Boc Group, Inc. | Distillation method and column |
CA3063409A1 (en) | 2017-05-16 | 2018-11-22 | Terrence J. Ebert | Apparatus and process for liquefying gases |
Family Cites Families (17)
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US3173778A (en) * | 1961-01-05 | 1965-03-16 | Air Prod & Chem | Separation of gaseous mixtures including argon |
US3254497A (en) * | 1962-08-24 | 1966-06-07 | Reed Roller Bit Co | Prevention of solid hydrates in the liquefaction of natural gases |
FR2041701B1 (ko) * | 1969-05-05 | 1974-02-01 | Air Liquide | |
US4128684A (en) * | 1974-07-09 | 1978-12-05 | Sulzer Brothers Limited | Method of producing a packing and a packing layer made thereby |
IT1034544B (it) * | 1975-03-26 | 1979-10-10 | Siad | Procedimento ed impianto per il frazionamento dell aria con colon na a semplice rettifica |
CH617357A5 (ko) * | 1977-05-12 | 1980-05-30 | Sulzer Ag | |
CH618006A5 (ko) * | 1977-05-12 | 1980-06-30 | Sulzer Ag | |
CH653565A5 (de) * | 1981-07-30 | 1986-01-15 | Sulzer Ag | Vorrichtung zum stoff- und/oder direkten waermeaustausch oder mischen. |
EP0070915A1 (de) * | 1981-07-30 | 1983-02-09 | GebràDer Sulzer Aktiengesellschaft | Einbauelement für eine Vorrichtung für Stoff- und direkten Wärmeaustausch und Mischen |
CH653566A5 (de) * | 1981-07-30 | 1986-01-15 | Sulzer Ag | Kolonne fuer stoff- und direkten waermeaustausch. |
CH656321A5 (de) * | 1981-07-30 | 1986-06-30 | Sulzer Ag | Einbauelement fuer eine vorrichtung fuer stoff- und/oder direkten waermeaustausch oder mischen. |
US4604116A (en) * | 1982-09-13 | 1986-08-05 | Erickson Donald C | High pressure oxygen pumped LOX rectifier |
US4605427A (en) * | 1983-03-31 | 1986-08-12 | Erickson Donald C | Cryogenic triple-pressure air separation with LP-to-MP latent-heat-exchange |
US4533375A (en) * | 1983-08-12 | 1985-08-06 | Erickson Donald C | Cryogenic air separation with cold argon recycle |
US4578095A (en) * | 1984-08-20 | 1986-03-25 | Erickson Donald C | Low energy high purity oxygen plus argon |
US4670031A (en) * | 1985-04-29 | 1987-06-02 | Erickson Donald C | Increased argon recovery from air distillation |
US4737177A (en) * | 1986-08-01 | 1988-04-12 | Erickson Donald C | Air distillation improvements for high purity oxygen |
-
1987
- 1987-12-14 US US07/132,535 patent/US4836836A/en not_active Ceased
-
1988
- 1988-12-08 CA CA000585327A patent/CA1280964C/en not_active Expired - Lifetime
- 1988-12-09 DE DE3855487T patent/DE3855487T2/de not_active Expired - Lifetime
- 1988-12-09 ES ES88311713T patent/ES2092985T3/es not_active Expired - Lifetime
- 1988-12-09 EP EP88311713A patent/EP0321163B1/en not_active Expired - Lifetime
- 1988-12-13 DK DK198806937A patent/DK166105C/da not_active IP Right Cessation
- 1988-12-13 FI FI885761A patent/FI89410B/fi not_active Application Discontinuation
- 1988-12-13 NO NO885528A patent/NO169197C/no unknown
- 1988-12-14 KR KR1019880016622A patent/KR910002167B1/ko not_active IP Right Cessation
- 1988-12-14 ZA ZA889359A patent/ZA889359B/xx unknown
- 1988-12-14 JP JP63316060A patent/JPH07113514B2/ja not_active Expired - Lifetime
- 1988-12-14 MX MX014155A patent/MX165562B/es unknown
Also Published As
Publication number | Publication date |
---|---|
AU602620B2 (en) | 1990-10-18 |
EP0321163A3 (en) | 1989-08-30 |
DK166105C (da) | 2004-06-28 |
EP0321163A2 (en) | 1989-06-21 |
ES2092985T3 (es) | 1996-12-16 |
DE3855487D1 (de) | 1996-09-26 |
CA1280964C (en) | 1991-03-05 |
DK693788A (da) | 1989-06-15 |
NO169197C (no) | 1999-07-19 |
DK693788D0 (da) | 1988-12-13 |
FI885761A0 (fi) | 1988-12-13 |
JPH07113514B2 (ja) | 1995-12-06 |
DE3855487T2 (de) | 1997-01-23 |
MX165562B (es) | 1992-11-23 |
FI89410B (fi) | 1993-06-15 |
NO169197B (no) | 1992-02-10 |
NO885528D0 (no) | 1988-12-13 |
EP0321163B1 (en) | 1996-08-21 |
ZA889359B (en) | 1990-08-29 |
KR910002167B1 (ko) | 1991-04-06 |
FI885761A (fi) | 1989-06-15 |
US4836836A (en) | 1989-06-06 |
AU2682688A (en) | 1989-07-06 |
DK166105B (da) | 1993-03-08 |
JPH01244269A (ja) | 1989-09-28 |
NO885528L (no) | 1989-06-15 |
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