WO2003024900A1 - Procede de fabrication de cumene - Google Patents
Procede de fabrication de cumene Download PDFInfo
- Publication number
- WO2003024900A1 WO2003024900A1 PCT/JP2002/009212 JP0209212W WO03024900A1 WO 2003024900 A1 WO2003024900 A1 WO 2003024900A1 JP 0209212 W JP0209212 W JP 0209212W WO 03024900 A1 WO03024900 A1 WO 03024900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cumene
- hydrogen
- carbon monoxide
- hydrocracking
- less
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/19—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with organic hydroperoxides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/02—Monocyclic hydrocarbons
- C07C15/085—Isopropylbenzene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
- C07C1/22—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by reduction
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/72—Copper
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Definitions
- the present invention relates to a method for producing cumene. More specifically, the present invention is a method for producing cumene by hydrogenolyzing cumyl alcohol in the presence of a copper-based catalyst, which prevents a decrease in hydrogen partial pressure and a decrease in activity due to catalyst poisoning, The present invention also relates to a method for producing cumene which has an excellent feature that the entire volume of a reaction vessel can be effectively used and the amount of gas purge can be reduced when recycling hydrogen. Background art
- the present inventors separated hydrogen from water gas obtained, for example, from the reaction of methane and steam, and studied the use of hydrogen gas. It was found that a small amount of carbon monoxide had a poisoning effect on the catalyst. As a result of further study, they found that it was effective to reduce the content of carbon monoxide to 5% by volume or less, and reached the present invention. According to the present invention, in a method for producing cumene by hydrocracking cumyl alcohol in the presence of a copper-based catalyst, a decrease in activity due to catalyst poisoning is prevented as much as possible, and the entire volume of the reaction vessel is effectively used. It is an object of the present invention to provide a method for producing cumene having an excellent feature that it can be used for various purposes.
- the present invention is characterized in that, in the method for producing cumene by hydrogenolyzing cumyl alcohol in the presence of a copper-based catalyst, hydrogen having a carbon monoxide content of 5% by volume or less is used. It relates to a method for producing cumene.
- Examples of the copper-based catalyst include copper, Raney-copper, copper-chromium, copper-zinc, copper-chromium-zinc, copper-silica, copper-alumina, and compounds containing these.
- the hydrocracking reaction is usually carried out by bringing cumyl alcohol and hydrogen into contact with a catalyst.
- the reaction can be carried out in a liquid or gas phase using a solvent.
- the solvent should be substantially inert to the reactants and products.
- the solvent may consist of the substances present in the cumyl alcohol solution used.
- cumyl alcohol is a mixture of the product cumene, it can be used as a substitute for the solvent without adding a solvent.
- Other useful solvents include alkanes (eg, octane, decane, dodecane) and aromatic monocyclic compounds (eg, benzene, ethylbenzene, toluene).
- the hydrocracking temperature is generally between 0 and 500 ° C, preferably between 30 and 400 ° C. In general, it is advantageous for the pressure to be between 100 and 1000 kPa.
- the hydrocracking reaction can be advantageously carried out using a catalyst in the form of a slurry or fixed bed. The reaction can be carried out by a batch, semi-continuous or continuous method.
- the content of carbon monoxide in the hydrogen gas needs to be 5% by volume or less, and hydrogen having a total content of carbon monoxide and carbon dioxide of 15% by volume or less is used. Is preferred. Further, the content of carbon monoxide is preferably 3% by volume or less.
- the hydrogen source a source obtained by separating and removing carbon monoxide from a water gas as a raw material so as to fall within the above range is preferably used.
- the water gas is obtained by a catalytic reforming reaction of steam and high temperature with a hydrocarbon such as methane or coke at a high temperature, and is a mixed gas substantially comprising hydrogen, methane, carbon monoxide and carbon dioxide.
- Methods for reducing carbon monoxide and carbon dioxide in hydrogen include, for example, absorption and removal with solvents or absorbents such as water and caustic water, adsorption and removal with zeolite and carbon molecular sieve, and reactions such as methanation.
- Well-known separation and removal methods such as separation by pressure, separation by pressure swing adsorption method (PSA), and separation using a semipermeable membrane.
- the method of the present invention can be carried out in the hydrocracking step in the production of propylene oxide including the following steps.
- Oxidation step a step of obtaining cumene hydroxide peroxide by oxidizing cumene
- Epoxidation step a step of reacting cumene hydroperoxide obtained in the oxidation step with an excessive amount of propylene in the presence of a solid catalyst in a liquid phase to obtain propylene oxide and cumyl alcohol;
- Hydrocracking process Cumene alcohol obtained in the epoxidation process is hydrocracked to obtain cumene, and the cumene is recycled to the oxidation process as a raw material for the oxidation process.
- the oxidation step is a step of obtaining cumene hydroperoxide by oxidizing cumene.
- the oxidation of cumene is usually performed by autoxidation with oxygenated gas such as air or oxygen-enriched air. This oxidation reaction may be carried out without using an additive, or an additive such as an alkali may be used. Normal reaction temperatures are 50-200 ° C. and reaction pressures are between atmospheric pressure and 5 MPa.
- the alkali reagent such as N a OH, K and alkali metal compounds such as OH, alkaline earth metal compounds or N a 2 C_ ⁇ 3, N a HCO 3 Alkali metal carbonate, ammonia and (NH 4 ) 2 CO 3 , alkali metal ammonium carbonate, and the like are used.
- epoxidation step propylene oxide and cumyl alcohol are reacted by reacting cumene hydrooxide obtained in the oxidation step with an excess amount of propylene in the liquid phase in the presence of a solid catalyst for epoxidation. This is the step of obtaining.
- a catalyst composed of a titanium-containing silicate is preferred from the viewpoint of obtaining the desired product with high yield and high selectivity.
- These catalysts are preferably so-called titanium-silica catalysts containing titanium chemically bonded to silicon oxide.
- titanium-silica catalysts containing titanium chemically bonded to silicon oxide For example, a titanium compound supported on a silicon carrier, silicon oxide by coprecipitation method or sol-gel method And a zeolite compound containing titanium, and the like.
- the cumene hydroperoxide used as a raw material in the epoxidation step may be a dilute or concentrated purified or non-purified product.
- the epoxidation reaction is performed by bringing propylene and cumene hydroperoxide into contact with the catalyst.
- the reaction is usually performed in a liquid phase using a solvent.
- the solvent should be liquid at the temperature and pressure of the reaction and be substantially inert to the reactants and products.
- the solvent may consist of the substances present in the hydroperoxide solution used.
- cumene hydroperoxide is a mixture of cumene as a raw material thereof, it can be used as a substitute for a solvent without adding a solvent.
- aromatic monocyclic compounds eg, benzene, toluene, cyclobenzene, orthodichlorobenzene
- alkanes eg, octane, decane, dodecane
- the epoxidation reaction temperature is generally from 0 to 200 ° C, but a temperature of from 25 to 200 ° C is preferred.
- the pressure may be sufficient to keep the reaction mixture in a liquid state. In general, it is advantageous for the pressure to be between 100 and 1000 kPa.
- the solid catalyst can be advantageously implemented in the form of a slurry or a fixed bed. In the case of large-scale industrial operation, it is preferable to use a fixed bed. It can be carried out by a batch, semi-continuous or continuous method. When the liquid containing the reactants is passed through the fixed bed, the liquid mixture exiting the reaction zone contains no or substantially no catalyst.
- the molar ratio of propylene Z cumene hydroperoxide supplied to the epoxidation step is preferably 2 Z 1 to 50 1. If the ratio is less than 2/1, the reaction rate is reduced and the efficiency is poor, while if the ratio exceeds 50 Z1, the amount of propylene to be recycled becomes excessive, requiring a large amount of energy in the recovery process. Tend to be necessary.
- the hydrocracking step is a step in which cumene is obtained by hydrocracking the cumyl alcohol obtained in the epoxidation step, and the cumene is used as a raw material in the oxidizing step, and the oxidizing step is recycled, as described above.
- Table 1 shows the decomposition activity of cumyl alcohol when the reaction solution was analyzed 5 hours after the start of feed.
- Example 1 The same reaction as in Example 1 was performed except that hydrogen containing 1% by volume of carbon monoxide was fed into the fixed-bed reactor. Table 1 shows the results.
- Example 1 The same reaction as in Example 1 was performed except that hydrogen containing 10% by volume of carbon monoxide was fed to the fixed bed reactor. Table 1 shows the results.
- a method of reducing hydrogen partial pressure and reducing catalyst Cumene has the excellent features of preventing a decrease in activity due to poisoning, effectively utilizing the entire volume of the reaction vessel, and reducing the amount of gas purge when recycling hydrogen. Can be provided.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Epoxy Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Saccharide Compounds (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0212442-4A BR0212442A (pt) | 2001-09-13 | 2002-09-10 | Processo para produção de cumeno |
EP02798818A EP1433769B1 (en) | 2001-09-13 | 2002-09-10 | Process for producing cumene |
DE60234366T DE60234366D1 (de) | 2001-09-13 | 2002-09-10 | Verfahren zur herstellung von cumen |
AT02798818T ATE448183T1 (de) | 2001-09-13 | 2002-09-10 | Verfahren zur herstellung von cumen |
US10/489,184 US20040260134A1 (en) | 2001-09-13 | 2002-09-10 | Process for producing cumene |
KR1020047003763A KR100905677B1 (ko) | 2001-09-13 | 2002-09-10 | 쿠멘의 제조 방법 |
CA002460507A CA2460507A1 (en) | 2001-09-13 | 2002-09-10 | Process for producing cumene |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001277701A JP2003081886A (ja) | 2001-09-13 | 2001-09-13 | クメンの製造方法 |
JP2001-277701 | 2001-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003024900A1 true WO2003024900A1 (fr) | 2003-03-27 |
Family
ID=19102184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/009212 WO2003024900A1 (fr) | 2001-09-13 | 2002-09-10 | Procede de fabrication de cumene |
Country Status (12)
Country | Link |
---|---|
US (1) | US20040260134A1 (ja) |
EP (1) | EP1433769B1 (ja) |
JP (1) | JP2003081886A (ja) |
KR (1) | KR100905677B1 (ja) |
CN (1) | CN1257138C (ja) |
AT (1) | ATE448183T1 (ja) |
BR (1) | BR0212442A (ja) |
CA (1) | CA2460507A1 (ja) |
DE (1) | DE60234366D1 (ja) |
ES (1) | ES2334216T3 (ja) |
TW (1) | TW584619B (ja) |
WO (1) | WO2003024900A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376520C (zh) * | 2003-09-25 | 2008-03-26 | 住友化学株式会社 | 生产异丙基苯的方法和包括该方法的生产环氧丙烷的方法 |
EP3023402A1 (en) | 2014-11-20 | 2016-05-25 | Shell Internationale Research Maatschappij B.V. | Improvements relating to hydrogenolysis of phenyl alcohols |
EP3023401A1 (en) | 2014-11-20 | 2016-05-25 | Shell Internationale Research Maatschappij B.V. | Improvements relating to hydrogenolysis of phenyl alcohols |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6875523B2 (en) | 2001-07-05 | 2005-04-05 | E. I. Du Pont De Nemours And Company | Photoactive lanthanide complexes with phosphine oxides, phosphine oxide-sulfides, pyridine N-oxides, and phosphine oxide-pyridine N-oxides, and devices made with such complexes |
US7205376B2 (en) * | 2004-05-04 | 2007-04-17 | General Electric Company | Processes for the production of cumene, polyetherimides, and polycarbonates |
CN102464567B (zh) * | 2010-11-17 | 2013-12-25 | 中国石油化工股份有限公司 | 氢解α,α-二甲基苄醇制备异丙苯的方法 |
CN104230640A (zh) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | α,α-二甲基苄醇氢解制备异丙苯的方法 |
CN112300095A (zh) * | 2019-07-29 | 2021-02-02 | 万华化学集团股份有限公司 | 一种制备环氧丙烷过程中的异丙苯循环使用方法 |
KR20220044571A (ko) | 2019-08-09 | 2022-04-08 | 스미또모 가가꾸 가부시키가이샤 | 쿠멘의 제조 방법 |
CN113651664B (zh) * | 2020-05-12 | 2024-05-28 | 中国石油化工股份有限公司 | 苄醇转化的方法 |
CN114634394A (zh) * | 2020-12-15 | 2022-06-17 | 中国石油化工股份有限公司 | 苯衍生物的生产方法 |
WO2023108336A1 (zh) | 2021-12-13 | 2023-06-22 | 万华化学集团股份有限公司 | 一种二甲基苄醇氢解催化剂及其制备方法与应用 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001070714A1 (fr) * | 2000-03-24 | 2001-09-27 | Sumitomo Chemical Company, Limited | Procede de production d'un oxyde de propylene |
WO2001070711A1 (fr) * | 2000-03-24 | 2001-09-27 | Sumitomo Chemical Company, Limited | Procede de production d'oxyde de propylene |
JP2001270880A (ja) * | 2000-03-24 | 2001-10-02 | Sumitomo Chem Co Ltd | プロピレンオキサイドの製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337646A (en) * | 1964-07-07 | 1967-08-22 | Halcon International Inc | Hydrogenation of cumyl alcohol to cumene |
US3439001A (en) * | 1965-10-01 | 1969-04-15 | Halcon International Inc | Epoxidation using ethylbenzene hydroperoxide with alkali or adsorbent treatment of recycle ethylbenzene |
US3351635A (en) * | 1966-03-14 | 1967-11-07 | Halcon International Inc | Epoxidation process |
JP3829361B2 (ja) * | 1996-06-07 | 2006-10-04 | 住友化学株式会社 | プロピレンオキサイドの製造方法 |
JP3965745B2 (ja) * | 1997-11-20 | 2007-08-29 | 住友化学株式会社 | プロピレンオキサイドの製造方法 |
JP4013444B2 (ja) * | 2000-03-24 | 2007-11-28 | 住友化学株式会社 | プロピレンオキサイドの製造方法 |
-
2001
- 2001-09-13 JP JP2001277701A patent/JP2003081886A/ja active Pending
-
2002
- 2002-09-10 AT AT02798818T patent/ATE448183T1/de not_active IP Right Cessation
- 2002-09-10 US US10/489,184 patent/US20040260134A1/en not_active Abandoned
- 2002-09-10 KR KR1020047003763A patent/KR100905677B1/ko not_active IP Right Cessation
- 2002-09-10 ES ES02798818T patent/ES2334216T3/es not_active Expired - Lifetime
- 2002-09-10 WO PCT/JP2002/009212 patent/WO2003024900A1/ja active Application Filing
- 2002-09-10 DE DE60234366T patent/DE60234366D1/de not_active Expired - Lifetime
- 2002-09-10 EP EP02798818A patent/EP1433769B1/en not_active Expired - Lifetime
- 2002-09-10 BR BR0212442-4A patent/BR0212442A/pt not_active Application Discontinuation
- 2002-09-10 CA CA002460507A patent/CA2460507A1/en not_active Abandoned
- 2002-09-10 CN CNB02817948XA patent/CN1257138C/zh not_active Expired - Fee Related
- 2002-09-11 TW TW091120749A patent/TW584619B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001070714A1 (fr) * | 2000-03-24 | 2001-09-27 | Sumitomo Chemical Company, Limited | Procede de production d'un oxyde de propylene |
WO2001070711A1 (fr) * | 2000-03-24 | 2001-09-27 | Sumitomo Chemical Company, Limited | Procede de production d'oxyde de propylene |
JP2001270880A (ja) * | 2000-03-24 | 2001-10-02 | Sumitomo Chem Co Ltd | プロピレンオキサイドの製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376520C (zh) * | 2003-09-25 | 2008-03-26 | 住友化学株式会社 | 生产异丙基苯的方法和包括该方法的生产环氧丙烷的方法 |
EP3023402A1 (en) | 2014-11-20 | 2016-05-25 | Shell Internationale Research Maatschappij B.V. | Improvements relating to hydrogenolysis of phenyl alcohols |
EP3023401A1 (en) | 2014-11-20 | 2016-05-25 | Shell Internationale Research Maatschappij B.V. | Improvements relating to hydrogenolysis of phenyl alcohols |
Also Published As
Publication number | Publication date |
---|---|
BR0212442A (pt) | 2004-08-17 |
US20040260134A1 (en) | 2004-12-23 |
CN1555348A (zh) | 2004-12-15 |
KR100905677B1 (ko) | 2009-07-03 |
JP2003081886A (ja) | 2003-03-19 |
EP1433769B1 (en) | 2009-11-11 |
TW584619B (en) | 2004-04-21 |
DE60234366D1 (de) | 2009-12-24 |
CA2460507A1 (en) | 2003-03-27 |
CN1257138C (zh) | 2006-05-24 |
EP1433769A1 (en) | 2004-06-30 |
ATE448183T1 (de) | 2009-11-15 |
EP1433769A4 (en) | 2004-11-10 |
KR20040044919A (ko) | 2004-05-31 |
ES2334216T3 (es) | 2010-03-08 |
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