[go: up one dir, main page]

WO2002079357A1 - Processus de production de combustible a faible teneur en cendres - Google Patents

Processus de production de combustible a faible teneur en cendres Download PDF

Info

Publication number
WO2002079357A1
WO2002079357A1 PCT/IN2001/000066 IN0100066W WO02079357A1 WO 2002079357 A1 WO2002079357 A1 WO 2002079357A1 IN 0100066 W IN0100066 W IN 0100066W WO 02079357 A1 WO02079357 A1 WO 02079357A1
Authority
WO
WIPO (PCT)
Prior art keywords
coke
petroleum coke
calcined petroleum
low ash
low
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IN2001/000066
Other languages
English (en)
Inventor
Paras Nath Sinha
Partha Sengupta
Kali Sankar Bhattacharya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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
Priority to GB0206186A priority Critical patent/GB2377225B/en
Priority claimed from US09/822,760 external-priority patent/US6524354B2/en
Priority to JP2002553791A priority patent/JP3920775B2/ja
Priority to PL368635A priority patent/PL191734B1/pl
Priority to DE10196153T priority patent/DE10196153T1/de
Priority to PCT/IN2001/000066 priority patent/WO2002079357A1/fr
Priority to KR10-2002-7003633A priority patent/KR100464724B1/ko
Priority to US09/822,760 priority patent/US6524354B2/en
Priority to AU2001260589A priority patent/AU2001260589B2/en
Application filed by Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Priority to FR0203684A priority patent/FR2822840B1/fr
Publication of WO2002079357A1 publication Critical patent/WO2002079357A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
    • C10L5/16—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with bituminous binders, e.g. tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels

Definitions

  • the present invention relates to a process for the production of low ash fuel using calcined petroleum coke.
  • the main usage of the invention is to provide a process for the production of low ash, low phosphorus alternative fuel of moulded shape, hard, water resistant having chemical composition such that the product can be safely used in place of by- prpduct/bee-hive coke for industrial and/or metallurgical purposes Background of the invention
  • Petroleum coke is produced during refining of crude petroleum oil. After calcination, petroleum coke gives an excellent quality of carbonaceous material having very low ash, low volatile matter, low phosphorus and high fixed carbon content.
  • the calcined petroleum coke has a very limited utility and at present to some extent is used in Electrode industry.
  • a process for producing low ash, tailor made fuel will augment the production of briquetted fuel of low ash, low phosphorus content, which can substitute the scarce low ash metallurgical/industrial coke in the low shaft furnaces, cupolas, etc, to produce high grade steel and casting materials.
  • Low ash briquetted fuel not only help to produce good quality product but also helps to increase the productivity which is bound to help the industry in a competitive market.
  • Metallurgical/industrial coke is produced by high temperature carbonisation of coal either in non-recovery type bee-hive ovens or byproduct recovery type coke ovens.
  • coal of low ash low phosphorus metallurgical/industrial coke coal of low ash low phosphorus content has to be carbonised.
  • the availability of low ash, low phosphorus content cooking coal is highly scarce which has compelled the iron and steel industry to import low ash low phosphorus metallurgical coke for production of high grade steel and casting materials.
  • the main object of the present invention is to provide a process for the 20 production of low ash fuel using calcined petroleum coke which obviates the drawbacks detailed above.
  • a process for producing low ash, tailor made fuel using calcined petroleum 30 coke augments the production of briquetted fuel of low ash, low phosphorus content, which can substitute the scarce low ash metallurgical/industrial coke in the low shaft furnaces, cupolas, etc, to produce high grade steel and casting materials.
  • the present invention provides a process for the production of low ash fuel using calcined petroleum coke which comprises of crushing and screening of the calcined petroleum coke at 3 mm size, mixing the crushed and screened materials to achieve bulk density in the range of 760 to 800 Kg/m 3 , mixing 10-100% of the resultant calcined petroleum coke with 0 to 50% coke breeze, pre-soaking the mix so obtained with 5-10% water, mixing with binder followed by kneading in presence of 5 live steam then briquetting and curing of the raw briquettes in a furnace in a controlled oxidising atmosphere, through a twin paddle mixer and a screw feeder and curing of the raw briquettes in a furnace where temperature is maintained at the desired level by generating hot fuel gas by combustion of coal in a controlled oxidizing atmosphere, to obtain the low ash fuel .
  • Asphalt or processed low temperature tar is used as binder.
  • the binder is used in the range of 6 to 7%.
  • the curing of briquettes is effected at J5 a temperature in the range of 250 to 300°C for a period in the range of 2.5 to 5.5 hours Detailed description of the invention
  • Low ash fuel is produced according to the process of the invention by using calcined petroleum coke.
  • Calcined petroleum coke is crushed and screened at 3 mm 20 size, and then mixed to achieve bulk density in the range of 760 to 800 Kg/m3.
  • 10-100% is mixed with with 0 to 50% coke breeze, the mix so obtained being pre-soaked with 5-10% water.
  • the presoaked mix is then mixed with a binder followed by kneading in presence of live steam. Briquetting and curing of the raw briquettes in a furnace in a controlled oxidising atmosphere, through 25 a twin paddle mixer and a screw feeder. Curing of the raw briquettes is done in a furnace where temperature is maintained at the desired level by generating hot fuel gas by combustion of coal in a controlled oxidizing atmosphere, to obtain the low ash fuel.
  • the product comprising of low phosphorus alternate fuel of moulded shape, 30 hard, water resistant, can be safely used in place of by-product/t>ee-hive coke for m industrial and/or metallurgical purposes.
  • the product can be suitably and sized as per requirements of the Ferro- chrome, Ferro-Silicon, Ferro-manganese and allied industries. Binders like Asphalt of 80/100 grade, and processed low temperature tar are used which are readily available in the market and thus minimizes the cost towards the preparation of binder.
  • the process does not require any carbonization step to make the product smokeless, hard and water resistant which makes the process comparatively less energy incentive.
  • the calcined petroleum coke with or without coke breeze is then pre- soaked with 5-10% water by weight of dry solids. Then it is mixed with Asphalt of 80/100 grade used as binder. The proportion of solids: binder is maintained at 93:7 by weight of dry solids.
  • the binder may be asphalt of 80/100 grade having softening point of 45-52°C or a cut fraction above 300°C having S.P. 45-52°C of coal tar obtained from low temperature/medium temperature carbonization of coal.
  • the hot mixture from the kneader is then fed to a twin paddle mixer to cool down the temperature of mixture at 50-60°C.
  • the mixture from the mixer as stated in (e) is then fed to twin roll briquetting press through a screw feeder/pan feeder.
  • the mixture is briquetted by twin roll press at a pressure of 200-300 kg/cm 2 .
  • the green briquettes obtained from the rolls are of shape and of weight between 25gm to 380 gm depending on the dimension of the briquettes.
  • the green briquettes are cured in the furnace in batches. The heating of the furnace and the control of the temperature at desired level is done by generating hot flue gas by combustion of coal in a controlled oxidizing atmosphere.
  • the temperature of curing bed is raised by introducing hot flue gas to the briquettes placed in layers in a controlled condition.
  • the final temperature of curing bed is raised to 250-300°C and the temperature is maintained in that range for about 2.5-5.5 hours depending on dimension of the briquettes.
  • Calcined petroleum coke was initially screened on 3mm screen and the oversize of CPC was crushed in Jaw Crusher followed by double roll crusher using 3 mm screen so as to obtain the product passing 10% through 3 mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • CPC (x 3mm) was then mixed with coke breeze (x 3mm) in the ratio of 10:90 by weight.
  • the mix was then pre- soaked with 10.0% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded in presence of live steam at a pressure of 6kg/cm 2 .
  • Calcined petroleum coke was initially screened on 3mm screen and the oversize of CPC was crushed in jaw crusher followed by Double Roll crusher using 3 mm screen so as to obtain the product passing 100% through 3 mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • CPC (x 3mm) was then mixed with coke breeze (x3mm) in the ratio of 20:80 by weight.
  • the mix was the pre- soaked with 10.0% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded in presence of live steam at a pressure of 6kg/cm 2 .
  • the hot kneaded material was then passed through a twin paddle type cooler mixer to cool the mix to a temp, of 55-60°C.
  • the cooled material was then continuously fed into a twin roll briquetting press through a screw feeder and briquetted at 220-240 kg/cm 2 pressure.
  • raw briquettes were cured in a furnace at a temperature of 250 ⁇ 10°C for 3 hours by generating hot flue gas under controlled conditions.
  • Calcined petroleum coke was initially screened on 3mm screen and the oversize of CPC was crushed in jaw crusher followed by Double roll caisher using 3 mm screen so as to obtain the product passing 100% through 3 mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • CPC (x 3mm) was then mixed with coke breeze (x 3mm) in the ratio of 30:70 by weight.
  • the mix was then pre-soaked with 10.0% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded in presence of live steam at a pressure of 6 kg/cm 2 .
  • Calcined petroleum coke was initially screened on 3mm screen and the oversize of CPC was crushed in jaw crusher followed by Double roll crusher using 3 mm screen so as to obtain the product passing 100% through 3 mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • CPC (x 3mm) was then mixed with coke breeze (x3mm) in the ratio of 40:60 by weight.
  • the mix was the pre- soaked with 10% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded in the presence of live steam at a pressure of 6 kg/cm 2 .
  • Calcined petroleum coke was initially screened on 3mm screen and the oversize of CPC was crushed in jaw crusher followed by Double roll crusher using 3mm screen so as to obtain the product passing 100% through 3mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • CPC (x 3 mm) was then mixed with coke breeze (x3mm) in the ratio of 50:50 by weight.
  • the mix was then pre-soaked with 10% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded in presence of live steam at a pressure of 6 kg/cm 2 .
  • the hot kneaded material was then passed through a twin paddle type cooler mixer to cool the mix to a temp, of 55-60°C.
  • the cooled material was then continuously fed into a twin roll briquetting press through a screw feeder and briquetted at 220-240 kg/cm 2 pressure.
  • Finally raw briquettes were cured in a furnace at a temperature of 250 ⁇ 10°C for 3 hours by generating hot flue gas under controlled conditions.
  • EXAMPLE - VI Calcined petroleum coke (CPC) was initially screened on 3mm screen and the oversize of CPC was crushed in Jaw Crusher followed by double roll crusher using 3mm screen so as to obtain the product passing 100% through 3mm.
  • the screened and crushed CPC was mixed thoroughly and intimately.
  • the mix was then presoaked with 10% water and then mixed with 7.0% asphalt of 80/100 grade by weight.
  • the mix was then conveyed to a kneader-cum-mixer where it was thoroughly kneaded material was then passed through a twin paddle type cooler mixer to cool the mix to a temperature of 55-60°C.
  • the cooled material was then continuously fed into a twin roll briquetting press through, a screw feeder and briquetted at 220-240 kg/cm 2 pressure.
  • raw briquettes were cured in a furnace at a temperature of 250 ⁇ 10°C for 3 hours by generating hot flue gas under controlled conditions.
  • the process is simple and less expensive.
  • the process consists of calcined petroleum coke either as such or by weight of dry solids, mixing with organic binder in presence of live steam and then briquetted by twin roll press at a pressure of 200-300 kg/cm 2 .
  • the green briquettes are then cured in a furnace at a temperature of 250-300°C for a period of 2.5-5.5 hours.
  • the product obtained from the process is hard, shaped and sized, smokeless, water and weather resistant fuel from calcined petroleum coke produced in oil refineries.
  • the product obtained by utilizing all the calcined petroleum coke is of very low ash, low phosphorus content and can be suitably shaped and sized as per requirement in the Ferro-Chrome, Ferro-Silicon, Ferro-manganese and allied industries.
  • the process uses Asphalt (80/100 grade) as binder which is readily available in the market and thus minimizes the cost towards binder preparations.
  • the process is relatively cheap since a lower percentage of binder is used and the crushing is required only for a fraction of calcined petroleum coke and coke breeze. 5.
  • the process does not require any carbonization step to make the product smokeless. 6.
  • the process is relatively less expensive for the production of low ash, low phosphorus, high calorific value content product to be used as a fuel for industrial/metallurgical purposes in place of conventional coke in the hearth.
  • Capital investment required to set up a plant for a 40 tpd capacity will well remain within the limit market for Small Scale Industrial Sector.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un processus de production de combustible de faible teneur en cendres utilisant un coke de pétrole calciné, ledit processus consistant à broyer et à cribler le coke de pétrole calciné à une taille inférieure à 3 mm, à mélanger les matières broyées et criblées pour obtenir une masse volumique apparente comprise entre 760 et 800 kg/m3, à mélanger entre 10 et 100 % dudit coke de pétrole calciné obtenu avec 0 à 50 % de menu coke, à pré-tremper ledit mélange ainsi obtenu avec 5 à 10 % d'eau, à le mélanger avec un liant, ensuite à le malaxer en présence d'une vapeur vive, puis à l'agglomérer et à le traiter sous forme de briquettes brutes dans un fourneau renfermant une atmosphère d'oxydation régulée de manière à obtenir le combustible à faible teneur en cendres.
PCT/IN2001/000066 2001-03-30 2001-03-30 Processus de production de combustible a faible teneur en cendres Ceased WO2002079357A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AU2001260589A AU2001260589B2 (en) 2001-03-30 2001-03-30 Process for the production of low ash fuel
JP2002553791A JP3920775B2 (ja) 2001-03-30 2001-03-30 低灰分含有率燃料の製造方法
PL368635A PL191734B1 (pl) 2001-03-30 2001-03-30 Sposób wytwarzania paliwa o niskiej zawartości popiołu
DE10196153T DE10196153T1 (de) 2001-03-30 2001-03-30 Verfahren zur Herstellung eines aschearmen Brennstoffs
PCT/IN2001/000066 WO2002079357A1 (fr) 2001-03-30 2001-03-30 Processus de production de combustible a faible teneur en cendres
GB0206186A GB2377225B (en) 2001-03-30 2001-03-30 Process for the production of low ash fuel
US09/822,760 US6524354B2 (en) 2001-03-30 2001-03-30 Process for the production of low ash fuel
KR10-2002-7003633A KR100464724B1 (ko) 2001-03-30 2001-03-30 재가 적은 연료의 제조방법
FR0203684A FR2822840B1 (fr) 2001-03-30 2002-03-25 Procede de production d'un combustible a faible teneur en cendre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IN2001/000066 WO2002079357A1 (fr) 2001-03-30 2001-03-30 Processus de production de combustible a faible teneur en cendres
US09/822,760 US6524354B2 (en) 2001-03-30 2001-03-30 Process for the production of low ash fuel

Publications (1)

Publication Number Publication Date
WO2002079357A1 true WO2002079357A1 (fr) 2002-10-10

Family

ID=26324110

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2001/000066 Ceased WO2002079357A1 (fr) 2001-03-30 2001-03-30 Processus de production de combustible a faible teneur en cendres

Country Status (3)

Country Link
DE (1) DE10196153T1 (fr)
FR (1) FR2822840B1 (fr)
WO (1) WO2002079357A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9090844B2 (en) 2007-05-09 2015-07-28 Siemens Vai Metals Technologies Gmbh Method for producing moldings

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB761153A (en) * 1953-12-23 1956-11-14 Verkaufsvereinigung Fur Teerer Process for the production of aggregates of calcined petroleum coke fines in the form of lumps or moulded bodies
GB1028114A (en) * 1963-10-18 1966-05-04 Etude Et Construction Evence C Process for making smokeless agglomerates from coal containing more than 33 per cent volatile material
US3403989A (en) * 1966-10-31 1968-10-01 Fmc Corp Production of briquettes from calcined char employing asphalt binders and such briquettes
JPS575790A (en) * 1980-06-13 1982-01-12 Koa Sekiyu Kk Preparation of solid fuel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB761153A (en) * 1953-12-23 1956-11-14 Verkaufsvereinigung Fur Teerer Process for the production of aggregates of calcined petroleum coke fines in the form of lumps or moulded bodies
GB1028114A (en) * 1963-10-18 1966-05-04 Etude Et Construction Evence C Process for making smokeless agglomerates from coal containing more than 33 per cent volatile material
US3403989A (en) * 1966-10-31 1968-10-01 Fmc Corp Production of briquettes from calcined char employing asphalt binders and such briquettes
JPS575790A (en) * 1980-06-13 1982-01-12 Koa Sekiyu Kk Preparation of solid fuel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 068 (C - 100) 30 April 1982 (1982-04-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9090844B2 (en) 2007-05-09 2015-07-28 Siemens Vai Metals Technologies Gmbh Method for producing moldings

Also Published As

Publication number Publication date
FR2822840B1 (fr) 2004-01-30
DE10196153T1 (de) 2003-03-13
FR2822840A1 (fr) 2002-10-04

Similar Documents

Publication Publication Date Title
US6524354B2 (en) Process for the production of low ash fuel
CN104194813B (zh) 一种焦炭的制备方法
CN1153810A (zh) 一种用无烟煤生产的铸造型焦及其制造方法
US3403989A (en) Production of briquettes from calcined char employing asphalt binders and such briquettes
CN104194816A (zh) 一种制备焦炭的方法
KR101739858B1 (ko) 성형탄, 이의 제조 방법 및 장치
US7105114B2 (en) Briquetting of lime based products with carbon based additives
AU2001260589B2 (en) Process for the production of low ash fuel
KR101657402B1 (ko) 고강도 고반응성 코크스 및 그 제조방법
US4135983A (en) Method for improving coking property of coal for use in production of cokes
KR101405483B1 (ko) 용철 제조용 성형탄 제조 방법 및 그 제조 장치
AU2001260589A1 (en) Process for the production of low ash fuel
WO2002079357A1 (fr) Processus de production de combustible a faible teneur en cendres
AT505927A4 (de) Verfahren zum verbessern der produkteigenschaften von klinker beim brennen von rohmehl
KR100905581B1 (ko) 제철공정용 성형탄과 그 제조방법
JPH04332790A (ja) 成型炭の製造方法
PL191734B1 (pl) Sposób wytwarzania paliwa o niskiej zawartości popiołu
RU2005770C1 (ru) Способ получения топливных брикетов
US4288293A (en) Form coke production with recovery of medium BTU gas
SU1546469A1 (ru) Способ получени топливных брикетов
US20250320420A1 (en) Solid carbonized agglomerate, and its manufacturing method
RU2078120C1 (ru) Топливный брикет и способ его получения
CN112680240A (zh) 炼焦配煤及其应用、焦炭及其制备方法
CN111876185A (zh) 一种焦炭粘合剂
RU2298028C1 (ru) Способ получения топливных брикетов

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2001260589

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 200206186

Country of ref document: GB

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020027003633

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2002 553791

Country of ref document: JP

Kind code of ref document: A

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

ENP Entry into the national phase

Ref document number: 0206186

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20010330

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1020027003633

Country of ref document: KR

RET De translation (de og part 6b)

Ref document number: 10196153

Country of ref document: DE

Date of ref document: 20030313

WWE Wipo information: entry into national phase

Ref document number: 10196153

Country of ref document: DE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWG Wipo information: grant in national office

Ref document number: 2001260589

Country of ref document: AU

122 Ep: pct application non-entry in european phase
WWR Wipo information: refused in national office

Ref document number: 1020027003633

Country of ref document: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8607