IT1256062B - Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti - Google Patents

Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti

Info

Publication number
IT1256062B
IT1256062B ITMI922658A ITMI922658A IT1256062B IT 1256062 B IT1256062 B IT 1256062B IT MI922658 A ITMI922658 A IT MI922658A IT MI922658 A ITMI922658 A IT MI922658A IT 1256062 B IT1256062 B IT 1256062B
Authority
IT
Italy
Prior art keywords
ethanol
isobutanol
propanol
water
octanic
Prior art date
Application number
ITMI922658A
Other languages
English (en)
Inventor
Carlo Rescalli
Original Assignee
Snam Progetti
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 Snam Progetti filed Critical Snam Progetti
Priority to ITMI922658A priority Critical patent/IT1256062B/it
Publication of ITMI922658A0 publication Critical patent/ITMI922658A0/it
Priority to US08/151,841 priority patent/US5449440A/en
Priority to CA002103489A priority patent/CA2103489A1/en
Priority to RU93052153A priority patent/RU2109003C1/ru
Publication of ITMI922658A1 publication Critical patent/ITMI922658A1/it
Application granted granted Critical
Publication of IT1256062B publication Critical patent/IT1256062B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • 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
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/146—Multiple effect distillation
    • 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
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/14—Ejector-eductor
    • 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
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/20—Power plant
    • 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
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/24—Mobile, marine distiller

Abstract

Il procedimento rivendicato consente di ottenere, da una miscela contenente metanolo, etanolo, n-propanolo, isobutanolo, acqua e altri composti sia bassobollenti che altobollenti, tre distinte correnti, di cui una anidra costituita essenzialmente da metanolo o da metanolo ed etanolo (I), una contenente la maggior parte di n-propanolo presente nella miscela alimentata (II), una contenente la maggior parte dell'isobutanolo presente nella suddetta miscela (III), mediante l'impiego di tre colonne di rettifica, essendo la corrente (I) prelevata da un punto laterale della prima colonna, la corrente (II) ottenuta dalla testa della seconda colonna, la corrente (III) ottenuta dal fondo della seconda colonna.
ITMI922658A 1992-11-20 1992-11-20 Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti IT1256062B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITMI922658A IT1256062B (it) 1992-11-20 1992-11-20 Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti
US08/151,841 US5449440A (en) 1992-11-20 1993-11-15 Process for separating alcohols from mixtures of alcohols, water and other compounds
CA002103489A CA2103489A1 (en) 1992-11-20 1993-11-19 Process for obtaining streams of methanol, ethanol, n-propanol and isobutanol, for use mainly in preparing high-octane products, from mixtures containing said alcohols with water and other low-boiling and high-boiling compounds
RU93052153A RU2109003C1 (ru) 1992-11-20 1993-11-19 Способ получения потоков метанола, этанола, н-пропанола и изобутанола для использования, в основном, в получении высокооктановых продуктов, из смесей, содержащих упомянутые спирты, воду и другие низко- и высококипящие соединения

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922658A IT1256062B (it) 1992-11-20 1992-11-20 Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti

Publications (3)

Publication Number Publication Date
ITMI922658A0 ITMI922658A0 (it) 1992-11-20
ITMI922658A1 ITMI922658A1 (it) 1994-05-20
IT1256062B true IT1256062B (it) 1995-11-23

Family

ID=11364320

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922658A IT1256062B (it) 1992-11-20 1992-11-20 Procedimento per l'ottenimento di correnti di metanolo, etanolo, n-propanolo,isobutanolo,utilizzabili soprattutto nella preparazione diprodotti alto ottanici, da miscele contenenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti

Country Status (4)

Country Link
US (1) US5449440A (it)
CA (1) CA2103489A1 (it)
IT (1) IT1256062B (it)
RU (1) RU2109003C1 (it)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1271310B (it) * 1994-12-21 1997-05-27 Snam Progetti Procedimento per l'ottenimento di correnti distinte di metanolo ed etanolo,di n-propanolo,di isobutanolo,impiegabili nella sintesi di prodotti alto ottanici,da miscele contenti detti alcoli con acqua ed altri composti bassobollenti e altobollenti
US5658435A (en) * 1996-09-17 1997-08-19 Berg; Lloyd Separation of 2-methyl -1-propanol from 2-butanol by azeotropic distillation
US5762765A (en) * 1997-04-14 1998-06-09 Berg; Lloyd Separation of ethanol, isopropanol and water mixtures by azeotropic distillation
US5800681A (en) * 1997-04-21 1998-09-01 Berg; Lloyd Separation of ethanol, isopropanol and water mixtures by extractive distillation
US5795447A (en) * 1997-08-22 1998-08-18 Berg; Lloyd Separation of 2-butanol from isobutanol by extractive distillation
US5993610A (en) * 1998-05-04 1999-11-30 Berg; Lloyd Separation of ethyl acetate from ethanol by azeotropic distillation
US6375807B1 (en) * 1999-01-28 2002-04-23 Izak Nieuwoudt Separation of ethanol mixtures by extractive distillation
WO2003009072A1 (en) * 2001-07-19 2003-01-30 Invensys Systems, Inc. Systems and methods for isobutyl alcohol (iba) recovery
TW200912228A (en) * 2007-06-27 2009-03-16 Twister Bv Method and system for removing H2S from a natural gas stream
US8425734B2 (en) * 2007-07-02 2013-04-23 I3 Nanotec Llc Membrane-based hybrid process for separation of mixtures of organics, solids, and water
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US8668750B2 (en) 2010-02-02 2014-03-11 Celanese International Corporation Denatured fuel ethanol compositions for blending with gasoline or diesel fuel for use as motor fuels
US8552224B2 (en) 2010-05-07 2013-10-08 Celanese International Corporation Processes for maximizing ethanol formation in the hydrogenation of acetic acid
US8552226B2 (en) 2010-02-02 2013-10-08 Celanese International Corporation Process for heat integration for ethanol production and purification process
US8552225B2 (en) 2010-02-02 2013-10-08 Celanese International Corporation Process for vaporizing acetic acid for hydrogenation processes to produce ethanol
US8541633B2 (en) 2010-02-02 2013-09-24 Celanese International Corporation Processes for producing anhydrous ethanol compositions
US8318988B2 (en) 2010-05-07 2012-11-27 Celanese International Corporation Process for purifying a crude ethanol product
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US8394985B2 (en) * 2010-02-02 2013-03-12 Celanese International Corporation Process for producing an ester feed stream for esters production and co-production of ethanol
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US8932372B2 (en) 2010-02-02 2015-01-13 Celanese International Corporation Integrated process for producing alcohols from a mixed acid feed
US8575403B2 (en) 2010-05-07 2013-11-05 Celanese International Corporation Hydrolysis of ethyl acetate in ethanol separation process
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US8728179B2 (en) 2010-02-02 2014-05-20 Celanese International Corporation Ethanol compositions
US8222466B2 (en) 2010-02-02 2012-07-17 Celanese International Corporation Process for producing a water stream from ethanol production
US8894820B2 (en) * 2010-02-05 2014-11-25 Uop Llc Alkylation apparatus, fractionation zone, and method relating thereto
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US8604255B2 (en) 2010-05-07 2013-12-10 Celanese International Corporation Process for recovering ethanol with sidedraws to regulate C3+ alcohols concentrations
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US8680342B2 (en) 2010-05-07 2014-03-25 Celanese International Corporation Process for recovering alcohol produced by hydrogenating an acetic acid feed stream comprising water
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US8704011B2 (en) 2010-05-07 2014-04-22 Celanese International Corporation Separating ethanol and ethyl acetate under low pressure conditions
US8704010B2 (en) 2010-05-07 2014-04-22 Celanese International Corporation Alcohol production process with impurity removal
US8710280B2 (en) 2010-07-09 2014-04-29 Celanese International Corporation Weak acid recovery system for ethanol separation processes
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US8809597B2 (en) 2010-07-09 2014-08-19 Celanese International Corporation Separation of vapor crude alcohol product
US8884080B2 (en) 2010-07-09 2014-11-11 Celanese International Corporation Reduced energy alcohol separation process
US8846986B2 (en) 2011-04-26 2014-09-30 Celanese International Corporation Water separation from crude alcohol product
US8536384B2 (en) 2010-07-09 2013-09-17 Celanese International Corporation Recovering ethanol sidedraw by separating crude product from hydrogenation process
US8710279B2 (en) 2010-07-09 2014-04-29 Celanese International Corporation Hydrogenolysis of ethyl acetate in alcohol separation processes
US8859827B2 (en) 2011-11-18 2014-10-14 Celanese International Corporation Esterifying acetic acid to produce ester feed for hydrogenolysis
US9150474B2 (en) 2010-07-09 2015-10-06 Celanese International Corporation Reduction of acid within column through esterification during the production of alcohols
US9272970B2 (en) 2010-07-09 2016-03-01 Celanese International Corporation Hydrogenolysis of ethyl acetate in alcohol separation processes
US8664454B2 (en) 2010-07-09 2014-03-04 Celanese International Corporation Process for production of ethanol using a mixed feed using copper containing catalyst
CA2800319A1 (en) 2010-07-09 2012-01-12 Celanese International Corporation Finishing reactor for purifying ethanol
CN102091429B (zh) * 2010-12-20 2012-10-03 广东中科天元新能源科技有限公司 低压三效精馏乙醇回收装置及方法
US8927784B2 (en) 2011-04-26 2015-01-06 Celanese International Corporation Process to recover alcohol from an ethyl acetate residue stream
US9000232B2 (en) 2011-04-26 2015-04-07 Celanese International Corporation Extractive distillation of crude alcohol product
US8907141B2 (en) 2011-04-26 2014-12-09 Celanese International Corporation Process to recover alcohol with secondary reactors for esterification of acid
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US8748675B2 (en) 2011-06-16 2014-06-10 Celanese International Corporation Extractive distillation of crude alcohol product
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US8686200B2 (en) 2011-04-26 2014-04-01 Celanese International Corporation Process to recover alcohol from an acidic residue stream
US9073816B2 (en) 2011-04-26 2015-07-07 Celanese International Corporation Reducing ethyl acetate concentration in recycle streams for ethanol production processes
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US8927780B2 (en) 2011-04-26 2015-01-06 Celanese International Corporation Process for removing aldehydes from ethanol reaction mixture
US8933278B2 (en) 2011-04-26 2015-01-13 Celanese International Corporation Process for producing ethanol and reducing acetic acid concentration
US8754268B2 (en) 2011-04-26 2014-06-17 Celanese International Corporation Process for removing water from alcohol mixtures
US8686199B2 (en) 2011-04-26 2014-04-01 Celanese International Corporation Process for reducing the concentration of acetic acid in a crude alcohol product
US8592635B2 (en) 2011-04-26 2013-11-26 Celanese International Corporation Integrated ethanol production by extracting halides from acetic acid
CN103080053B (zh) 2011-04-26 2015-08-12 国际人造丝公司 使用叠置床反应器生产乙醇的方法
US9000233B2 (en) 2011-04-26 2015-04-07 Celanese International Corporation Process to recover alcohol with secondary reactors for hydrolysis of acetal
US8884081B2 (en) 2011-04-26 2014-11-11 Celanese International Corporation Integrated process for producing acetic acid and alcohol
US8927788B2 (en) 2011-04-26 2015-01-06 Celanese International Corporation Process to recover alcohol with reduced water from overhead of acid column
US8461399B2 (en) 2011-04-26 2013-06-11 Celanese International Corporation Separation process having an alcohol sidestream
US8927783B2 (en) 2011-04-26 2015-01-06 Celanese International Corporation Recovering ethanol with sidestreams to regulate C3+ alcohols concentrations
TW201302684A (zh) 2011-04-26 2013-01-16 Celanese Int Corp 由醋酸進料及再循環醋酸乙酯進料生產乙醇之製程
US8704012B2 (en) 2011-06-16 2014-04-22 Celanese International Corporation Distillation of crude alcohol product using entrainer
US8748676B2 (en) 2011-08-03 2014-06-10 Celanese International Corporation Process for purifying a crude ethanol product
US8877987B2 (en) 2011-08-03 2014-11-04 Celanese International Corportation Process for producing anhydrous ethanol using extractive distillation column
US8877986B2 (en) 2011-08-03 2014-11-04 Celanese International Corporation Process for recovering alcohol
US8575405B2 (en) 2011-08-03 2013-11-05 Celanese International Corporation Reducing acetals during ethanol separation process
US8895786B2 (en) 2011-08-03 2014-11-25 Celanese International Corporation Processes for increasing alcohol production
US8927782B2 (en) 2011-08-03 2015-01-06 Celanese International Corporation Vapor separation in alcohol production
US8440866B2 (en) 2011-08-03 2013-05-14 Celanese International Corporation Process for separating ethanol having low acid
US8884079B2 (en) 2011-08-03 2014-11-11 Celanese International Corporation Reducing impurities in hydrogenation processes with multiple reaction zones
US8802901B2 (en) 2011-11-18 2014-08-12 Celanese International Corporation Continuous ethyl acetate production and hydrogenolysis thereof
US8853468B2 (en) 2011-11-18 2014-10-07 Celanese International Corporation Vapor esterification method to produce ester feed for hydrogenolysis
US9024089B2 (en) 2011-11-18 2015-05-05 Celanese International Corporation Esterification process using extractive separation to produce feed for hydrogenolysis
US8829251B2 (en) 2011-11-18 2014-09-09 Celanese International Corporation Liquid esterification method to produce ester feed for hydrogenolysis
US8748673B2 (en) 2011-11-18 2014-06-10 Celanese International Corporation Process of recovery of ethanol from hydrogenolysis process
US8829249B2 (en) 2011-11-18 2014-09-09 Celanese International Corporation Integrated esterification and hydrogenolysis process for producing ethanol
EP2782890A1 (en) 2011-11-22 2014-10-01 Celanese International Corporation Esterifying an ethanol and acetic acid mixture to produce an ester feed for hydrogenolysis
WO2013089990A1 (en) 2011-12-14 2013-06-20 Celanese International Corporation Phasing reactor product from hydrogenating acetic acid into ethyl acetate feed to produce ethanol
US8927790B2 (en) 2011-12-15 2015-01-06 Celanese International Corporation Multiple vapor feeds for hydrogenation process to produce alcohol
US8907139B2 (en) 2011-12-28 2014-12-09 Celanese International Corporation Process for acetal removal in the purification of a crude ethanol product
WO2013101305A1 (en) 2011-12-30 2013-07-04 Celanese International Corporation Pressure driven distillation for producing and recovering ethanol from hydrogenation process
WO2013103399A1 (en) 2012-01-06 2013-07-11 Celanese International Corporation Hydrogenation catalysts with cobalt-modified supports
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US9353034B2 (en) 2012-02-07 2016-05-31 Celanese International Corporation Hydrogenation process with reduced residence time for vapor phase reactants
US8729311B2 (en) 2012-02-10 2014-05-20 Celanese International Corporaton Catalysts for converting acetic acid to acetone
US8802903B2 (en) 2012-03-13 2014-08-12 Celanese International Corporation Stacked bed reactor with diluents for producing ethanol
GB201210256D0 (en) * 2012-06-11 2012-07-25 Invista Tech Sarl Improved butanol recovery process
US8957262B2 (en) 2012-11-20 2015-02-17 Celanese International Corporation Olefin hydration for hydrogenation processes
US9000237B2 (en) 2012-12-20 2015-04-07 Celanese International Corporation Ethanol refining process using intermediate reboiler
US8926718B2 (en) 2013-03-15 2015-01-06 Celanese International Corporation Thermochemically produced ethanol compositions
US8975451B2 (en) 2013-03-15 2015-03-10 Celanese International Corporation Single phase ester feed for hydrogenolysis
RU2568215C1 (ru) * 2014-10-10 2015-11-10 Общество с ограниченной ответственностью "ЭНГО Инжиниринг" Способ разделения углеводородсодержащей газовой смеси
CN106278788B (zh) * 2015-05-22 2018-11-02 中国石油化工股份有限公司 一种以混合醇生产甲基叔丁基醚和/或异丁烯的方法
CN111051271A (zh) 2017-08-23 2020-04-21 沙特基础工业全球技术公司 用于甲醇回收的系统和工艺
CN115073270B (zh) * 2022-05-12 2024-04-02 山东昆达生物科技有限公司 分离低碳多元醇-水混合物的连续共沸萃取精馏方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399555A (fr) * 1961-08-10 1965-05-21 Rhone Poulenc Sa Nouveau procédé de fractionnement des mélanges d'éthanol, de méthanol et d'eau
US3293435A (en) * 1963-02-12 1966-12-20 Gen Electric Semiconductor charge multiplying radiation detector
US3293154A (en) * 1963-02-15 1966-12-20 Commercial Solvents Corp Process for separating water from aqueous methanol mixtures
US3434937A (en) * 1966-10-06 1969-03-25 Allied Chem Distillation purification of crude synthetic methanol
US3391064A (en) * 1967-08-28 1968-07-02 Du Pont Methanol refining
IN148355B (it) * 1977-03-11 1981-01-24 Ici Ltd
DE2908426A1 (de) * 1979-03-05 1980-09-25 Basf Ag Verfahren zur gewinnung von isobuten aus isobuten enthaltenden c tief 4 -kohlenwasserstoffgemischen
FR2490629A1 (fr) * 1980-09-01 1982-03-26 Inst Francais Du Petrole Procede de production d'alcools deshydrates utilisables comme composant d'un carburant pour moteur
DE3150755A1 (de) * 1981-12-22 1983-06-30 Deutsche Texaco Ag, 2000 Hamburg "verfahren zur abtrennung von methanol aus den bei der veraetherung von c(pfeil abwaerts)4(pfeil abwaerts) bis c(pfeil abwaerts)7(pfeil abwaerts)-isoolefinen mit methanol anfallenden reaktionsprodukten"
DE3338439A1 (de) * 1983-10-22 1985-05-02 Chemische Werke Hüls AG, 4370 Marl Verfahren zur destillativen aufarbeitung von wasser und methanol enthaltenden hoeheren alokoholen mit 6 bis 20 c-atomen
IT1206774B (it) * 1987-04-02 1989-05-03 Snam Progetti Procedimento per la disidratazione di una miscela di metanolo e alcoli superiori.
FR2619107B1 (fr) * 1987-08-06 1989-12-29 Inst Francais Du Petrole Procede de deshydratation d'un melange aqueux d'alcools comprenant au moins du methanol et de l'ethanol

Also Published As

Publication number Publication date
ITMI922658A1 (it) 1994-05-20
US5449440A (en) 1995-09-12
ITMI922658A0 (it) 1992-11-20
RU2109003C1 (ru) 1998-04-20
CA2103489A1 (en) 1994-05-21

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