AU2001289897A1 - Method and device for carrying out the distillative separation of c5+cuts - Google Patents
Method and device for carrying out the distillative separation of c5+cutsInfo
- Publication number
- AU2001289897A1 AU2001289897A1 AU2001289897A AU8989701A AU2001289897A1 AU 2001289897 A1 AU2001289897 A1 AU 2001289897A1 AU 2001289897 A AU2001289897 A AU 2001289897A AU 8989701 A AU8989701 A AU 8989701A AU 2001289897 A1 AU2001289897 A1 AU 2001289897A1
- Authority
- AU
- Australia
- Prior art keywords
- column
- dividing
- boiler
- boiler fraction
- sub
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000007700 distillative separation Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 abstract 3
- 238000009835 boiling Methods 0.000 abstract 2
- 238000010992 reflux Methods 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
- B01D3/141—Fractional distillation or use of a fractionation or rectification column where at least one distillation column contains at least one dividing wall
-
- 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
-
- 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
-
- 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
- B01D3/42—Regulation; Control
- B01D3/4211—Regulation; Control of columns
- B01D3/4238—Head-, side- and bottom stream
-
- 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
- C10G7/00—Distillation of hydrocarbon oils
-
- 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
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/02—Stabilising gasoline by removing gases by fractioning
-
- 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
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/12—Controlling or regulating
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
A process is proposed for the separation of C<SUB>5+</SUB> cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper, common column region ( 1 ), a lower, common column region ( 6 ), a feed part ( 2, 4 ) with rectifying section ( 2 ) and stripping section ( 4 ), and a withdrawal part ( 3, 5 ) with rectifying section ( 5 ) and stripping section ( 3 ), with feed of the C<SUB>5+</SUB> cut (A, B, C) into the central region of the feed part ( 2, 4 ), discharge of the high-boiler fraction (C) from the bottom of the column, discharge of the low-boiler fraction (A) via the top of the column, and discharge of the medium-boiler fraction (B) from the central region of the withdrawal part ( 3, 5 ), wherein the dividing ratio of the liquid reflux at the upper end of the dividing wall (T) is set in such a way that the proportion of high-boiling key components in the liquid reflux over the stripping section ( 3 ) of the withdrawal part at the upper end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B), and wherein the heating power in the evaporator at the bottom of the dividing-wall column (TK) is set in such a way that the concentration of the low-boiling key components in the liquid at the lower end of the dividing wall (T) is from 10 to 80%, preferably from 30 to 50%, of the limit value allowed in the medium-boiler fraction (B).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10046609 | 2000-09-20 | ||
| DE10046609A DE10046609A1 (en) | 2000-09-20 | 2000-09-20 | Method and device for the separation of C5 + cuts by distillation |
| PCT/EP2001/010837 WO2002024300A1 (en) | 2000-09-20 | 2001-09-19 | Method and device for carrying out the distillative separation of c5+ cuts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2001289897A1 true AU2001289897A1 (en) | 2002-04-02 |
Family
ID=7656979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2001289897A Abandoned AU2001289897A1 (en) | 2000-09-20 | 2001-09-19 | Method and device for carrying out the distillative separation of c5+cuts |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7169267B2 (en) |
| EP (1) | EP1324811B1 (en) |
| JP (1) | JP5036117B2 (en) |
| KR (1) | KR100802370B1 (en) |
| CN (1) | CN1241666C (en) |
| AT (1) | ATE270134T1 (en) |
| AU (1) | AU2001289897A1 (en) |
| DE (2) | DE10046609A1 (en) |
| ES (1) | ES2223916T3 (en) |
| RU (1) | RU2277958C2 (en) |
| WO (1) | WO2002024300A1 (en) |
Families Citing this family (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004071618A1 (en) * | 2003-02-12 | 2004-08-26 | Uop Llc | Dividing wall column control system |
| US7249469B2 (en) | 2004-11-18 | 2007-07-31 | Exxonmobil Chemical Patents Inc. | Method for separating a multicomponent stream |
| US7371912B2 (en) * | 2005-06-15 | 2008-05-13 | Uop Llc | Process for making xylene isomer using a deheptanizer with a side draw recycle |
| DE102005029643B3 (en) * | 2005-06-23 | 2006-07-20 | Uhde Gmbh | Extraction of styrene comprises fractionation of pyrolysis benzol fraction into three different carbon fractions, hydrogenation of the fraction containing phenyl acetylene and extractive distillation to obtain a styrene-rich portion |
| DE102006016789A1 (en) * | 2006-04-10 | 2007-10-11 | Degussa Gmbh | Separator for the distillation of mixtures |
| US7947860B2 (en) * | 2006-09-28 | 2011-05-24 | Uop Llc | Dividing wall separation in light olefin hydrocarbon processing |
| US7528290B2 (en) * | 2006-12-28 | 2009-05-05 | Uop Llc | Apparatuses and methods for separating butene-1 from a mixed C4 feed |
| US7498472B2 (en) * | 2007-05-23 | 2009-03-03 | Uop Llc | Process for producing ethylbenzene |
| US7498471B2 (en) * | 2007-05-23 | 2009-03-03 | Uop Llc | Process for producing cumene |
| US7525004B2 (en) * | 2007-05-23 | 2009-04-28 | Uop Llc | Process for producing ethylbenzene |
| US7713386B2 (en) * | 2007-05-23 | 2010-05-11 | Uop Llc | Apparatus for producing ethylbenzene or cumene |
| US7525006B2 (en) * | 2007-05-23 | 2009-04-28 | Uop Llc | Process for producing cumene |
| US7525003B2 (en) * | 2007-05-23 | 2009-04-28 | Uop Llc | Process for producing ethylbenzene |
| US7525005B2 (en) * | 2007-05-23 | 2009-04-28 | Uop Llc | Process for producing cumene |
| US20090139852A1 (en) * | 2007-12-04 | 2009-06-04 | Vannuland Marco L | Separation Method And Apparatus |
| CN101244982B (en) * | 2008-01-31 | 2011-03-23 | 中国石油大学(华东) | Hydrolyzation separation apparatus for methyl acetate and technique |
| US20090288939A1 (en) * | 2008-05-20 | 2009-11-26 | Smith Michael R | Distillation Apparatus |
| KR101191122B1 (en) * | 2009-01-20 | 2012-10-15 | 주식회사 엘지화학 | Dividing wall column for production of high purity n-butanol, and distillating method of n-butanol |
| KR101236664B1 (en) * | 2009-07-20 | 2013-02-22 | 주식회사 엘지화학 | Distillation-column assembly for saving energy |
| CN101724427B (en) * | 2009-12-24 | 2013-02-13 | 中国寰球工程公司 | Rectification system for separating mixture rich in aromatic hydrocarbon |
| CN102040542B (en) * | 2010-10-28 | 2013-08-14 | 河北工业大学 | Process for recycling acetonitrile from wastewater by using clapboard tower through azeotropic distillation |
| KR101496488B1 (en) * | 2010-12-29 | 2015-02-26 | 주식회사 엘지화학 | Dividing wall column for production of high purity 2-ethylhexyl-acrylate, and preparation method of high purity 2-ethylhexyl-acrylate |
| RU2465032C2 (en) * | 2011-01-12 | 2012-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова" Министерства сельского хозяйства Российской Федерации | Method of separating multi-component liquid mixes into fractions |
| CN102206504B (en) * | 2011-05-26 | 2013-12-04 | 中国石油天然气股份有限公司 | A method for separating reformed oil |
| JP5653318B2 (en) * | 2011-08-12 | 2015-01-14 | 鹿島石油株式会社 | Method for producing isopentane fraction and isopentane separation device |
| WO2013042941A1 (en) * | 2011-09-19 | 2013-03-28 | 주식회사 엘지화학 | Dual-mode dividing wall column |
| WO2013043606A1 (en) * | 2011-09-19 | 2013-03-28 | Kellogg Brown & Root Llc | Dividing wall column for alpha-methylstyrene and cumene distillation |
| WO2013070044A1 (en) * | 2011-11-11 | 2013-05-16 | 주식회사 엘지화학 | Trihalosilane refining device |
| CN103570486A (en) * | 2012-07-27 | 2014-02-12 | 抚顺伊科思新材料有限公司 | Method for obtaining isoprene from C5 fraction |
| BR112015016172A2 (en) | 2013-01-16 | 2017-07-11 | Lg Chemical Ltd | device for preparing alkanol |
| DE102013207282A1 (en) | 2013-04-22 | 2014-11-06 | Wacker Chemie Ag | Process and apparatus for the distillative separation of a three- or multi-component mixture |
| CN103463826B (en) * | 2013-08-20 | 2015-05-13 | 李群 | Rectification and separation method |
| US9504934B2 (en) | 2013-10-27 | 2016-11-29 | Purdue Research Foundation | Multicomponent dividing wall columns |
| CN104888489A (en) * | 2014-03-06 | 2015-09-09 | 英尼奥斯欧洲股份公司 | Acrylonitrile product tower liquid level control method |
| CN104922926A (en) * | 2014-03-21 | 2015-09-23 | 英尼奥斯欧洲股份公司 | Head fraction tower tower-top system |
| EP2952237A1 (en) | 2014-06-02 | 2015-12-09 | Sulzer Chemtech AG | Method for purification of benzoic acid |
| WO2017005565A1 (en) * | 2015-07-03 | 2017-01-12 | Basf Se | Distillation device comprising a column which has three or a plurality of cells in series through which fluid flows and method for distilling or extractive distillation by use of the distillation device |
| US10689313B2 (en) | 2015-10-23 | 2020-06-23 | Sabic Global Technologies B.V. | Processes and systems for purification of 1,3-butadiene |
| CN107699278B (en) * | 2016-08-08 | 2019-10-29 | 中国石化工程建设有限公司 | A kind of product separation method of hydro carbons CONTINUOUS REFORMER |
| CN107879881A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of separation method of polymerization grade isoprene |
| CN107879879A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | The method for preparing polymerization grade isoprene |
| CN107879880A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | A kind of separation method of chemical grade isoprene |
| TW201825451A (en) * | 2016-12-13 | 2018-07-16 | 德商巴斯夫歐洲公司 | Process for isolating pure cyclohexyl (meth)acrylate by distillation |
| CN110087747A (en) * | 2016-12-19 | 2019-08-02 | 沙特基础工业全球技术有限公司 | The method of segregated linear alhpa olefin |
| CN106512464A (en) * | 2016-12-20 | 2017-03-22 | 广西壮族自治区林业科学研究院 | Control system for continuous rectification production of spices |
| JP7452997B2 (en) * | 2016-12-21 | 2024-03-19 | ビーエーエスエフ ソシエタス・ヨーロピア | A process in which pure butyl acrylate is obtained by distillation from crude butyl acrylate, where the butyl is n-butyl or isobutyl. |
| ES2948682T3 (en) * | 2017-09-19 | 2023-09-15 | Sulzer Management Ag | Use of an upper dividing wall in isomerization unit |
| US10792585B2 (en) * | 2018-03-29 | 2020-10-06 | Uop Llc | Folded fractionation column and process |
| EP3768803A4 (en) * | 2018-04-30 | 2021-12-08 | Sulzer Management AG | NETWORK OF PARTITION WALL COLUMNS IN COMPLEX PROCESS UNITS |
| CN108744573A (en) * | 2018-06-26 | 2018-11-06 | 江苏博砚电子科技有限公司 | A kind of rectifier unit of synthetic resin high-purity chemical solvent |
| US11207611B1 (en) | 2018-07-03 | 2021-12-28 | Burns & Mcdonnell Engineering Company, Inc. | Process for separating hydrocarbons in a liquid feed utilizing an externally heated reboiler connected to a divided wall column as the primary source of heat energy |
| US10688408B2 (en) * | 2018-07-26 | 2020-06-23 | Uop Llc | Dividing wall column with vapor separation |
| WO2020114744A1 (en) * | 2018-12-04 | 2020-06-11 | Exxonmobil Chemical Patents Inc. | Process for the separation of linear alpha-olefins using a diving wall column |
| CN111484868A (en) * | 2019-08-22 | 2020-08-04 | 中国石油天然气集团有限公司 | Naphtha fraction device |
| CN112403013B (en) * | 2020-10-28 | 2023-01-10 | 洛阳金达石化有限责任公司 | Fine processing method of crude hexane |
| KR20240093735A (en) * | 2021-10-22 | 2024-06-24 | 바스프 에스이 | Method for purification of N-butanol |
| EP4466243A1 (en) | 2022-01-19 | 2024-11-27 | ExxonMobil Chemical Patents Inc. | Compositions containing tri-cyclopentadiene and processes for making same |
| WO2025244981A1 (en) | 2024-05-20 | 2025-11-27 | ExxonMobil Technology and Engineering Company | Processes for making exo-dicyclopentadiene and tricyclopentadiene |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3428528A (en) * | 1965-11-29 | 1969-02-18 | Phillips Petroleum Co | Fractionation distillation control process and apparatus with side stream,reflux and bottoms flow control |
| US4230533A (en) * | 1978-06-19 | 1980-10-28 | Phillips Petroleum Company | Fractionation method and apparatus |
| US4348259A (en) * | 1980-10-09 | 1982-09-07 | Phillips Petroleum Company | Control of sidedraw on distillation column |
| DE3302525A1 (en) * | 1983-01-26 | 1984-07-26 | Basf Ag, 6700 Ludwigshafen | DISTILLATION COLUMN FOR THE DISTILLATIVE DISASSEMBLY OF AN INLET PRODUCT MULTIPLE FRACTIONS |
| DE3902006A1 (en) * | 1989-01-25 | 1990-07-26 | Basf Ag | METHOD FOR DISTILLATIVELY SEPARATING LOW QUANTITIES OF A MEDIUM-SEDED FRACTION FROM A LIQUID MIXTURE |
| SU1740027A1 (en) * | 1989-12-05 | 1992-06-15 | Омское специальное конструкторское бюро Научно-производственного объединения "Нефтехимавтоматика" | Method of automatic control of primary oil fractionation in multistage rectification tower |
| US5035732A (en) * | 1990-01-04 | 1991-07-30 | Stone & Webster Engineering Corporation | Cryogenic separation of gaseous mixtures |
| DE4328424A1 (en) | 1993-08-24 | 1995-03-02 | Basf Ag | Distillation column for separating a liquid mixture into several pure fractions |
| DE4418488A1 (en) * | 1994-05-27 | 1995-11-30 | Basf Ag | Method and device for separating mixtures of substances by distillation |
| US5675054A (en) * | 1995-07-17 | 1997-10-07 | Manley; David | Low cost thermal coupling in ethylene recovery |
| DE19547450A1 (en) | 1995-12-19 | 1997-06-26 | Basf Ag | Process for controlling a dividing wall column or a thermally coupled distillation column |
| JP3329755B2 (en) * | 1999-01-07 | 2002-09-30 | 住友重機械工業株式会社 | Distillation apparatus and distillation method |
| US6250106B1 (en) * | 1999-12-13 | 2001-06-26 | Air Products And Chemicals, Inc. | Process for separation of multicomponent fluids using a multizone distallation column |
| US6417420B1 (en) * | 2001-02-26 | 2002-07-09 | Uop Llc | Alkylaromatic process with removal of aromatic byproducts using efficient distillation |
-
2000
- 2000-09-20 DE DE10046609A patent/DE10046609A1/en not_active Withdrawn
-
2001
- 2001-09-19 EP EP01969739A patent/EP1324811B1/en not_active Expired - Lifetime
- 2001-09-19 KR KR1020037003974A patent/KR100802370B1/en not_active Expired - Fee Related
- 2001-09-19 ES ES01969739T patent/ES2223916T3/en not_active Expired - Lifetime
- 2001-09-19 JP JP2002528365A patent/JP5036117B2/en not_active Expired - Fee Related
- 2001-09-19 AU AU2001289897A patent/AU2001289897A1/en not_active Abandoned
- 2001-09-19 RU RU2003111459/15A patent/RU2277958C2/en not_active IP Right Cessation
- 2001-09-19 AT AT01969739T patent/ATE270134T1/en not_active IP Right Cessation
- 2001-09-19 US US10/380,551 patent/US7169267B2/en not_active Expired - Fee Related
- 2001-09-19 CN CNB018175759A patent/CN1241666C/en not_active Expired - Fee Related
- 2001-09-19 DE DE50102763T patent/DE50102763D1/en not_active Expired - Lifetime
- 2001-09-19 WO PCT/EP2001/010837 patent/WO2002024300A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE10046609A1 (en) | 2002-04-04 |
| CN1469765A (en) | 2004-01-21 |
| CN1241666C (en) | 2006-02-15 |
| KR100802370B1 (en) | 2008-02-13 |
| ES2223916T3 (en) | 2005-03-01 |
| US7169267B2 (en) | 2007-01-30 |
| DE50102763D1 (en) | 2004-08-05 |
| JP2004508923A (en) | 2004-03-25 |
| WO2002024300A1 (en) | 2002-03-28 |
| RU2277958C2 (en) | 2006-06-20 |
| EP1324811B1 (en) | 2004-06-30 |
| KR20030042465A (en) | 2003-05-28 |
| EP1324811A1 (en) | 2003-07-09 |
| JP5036117B2 (en) | 2012-09-26 |
| ATE270134T1 (en) | 2004-07-15 |
| US20040011706A1 (en) | 2004-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2001289897A1 (en) | Method and device for carrying out the distillative separation of c5+cuts | |
| AU2001272391A1 (en) | Method for distillative separation of mixtures containing tetrahydrofuran, gamma-butyrolactone and/or 1,4-butanediol | |
| DE60010551D1 (en) | Integrated deethanizer / ethylene fractionation column | |
| AU6198799A (en) | Rectifying column for extractive distillation of close-boiling or azeotropic boiling mixtures | |
| AU1703502A (en) | Method and device for obtaining 1,3 pure butadiene from 1,3 raw butadiene by distillation | |
| MY119558A (en) | Rectification column for the continuous distillative separation of a multi-substance mixture | |
| MY140258A (en) | Distillative method for separating narrow boiling or azeotropic mixtures using ionic liquids | |
| EP0913180A3 (en) | Distillation process to separate mixtures containing three or more components | |
| WO2004002926A3 (en) | Purification of n,n-dimethylacetamide | |
| DE50006643D1 (en) | Process for the continuous distillative separation of a higher melting substance | |
| ATE42632T1 (en) | OXYGEN AND ARGON WITH HIGH PURITY AND REDUCED ENERGY. | |
| AU2003251441A1 (en) | Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide | |
| MY128278A (en) | Separation of pentene nitrile isomers | |
| AU3815000A (en) | Method for separating a liquid crude aldehyde mixture by distillation | |
| US4274944A (en) | Fractionation process | |
| CA2220463A1 (en) | Process for improving color and color stability of oleic acid | |
| EP1539680A1 (en) | Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine | |
| CA2273539A1 (en) | Process for working up crude, liquid vinyl acetate | |
| CA2060643A1 (en) | Process for the separation of ethyltertiobutyl ether and ethanol | |
| TW372235B (en) | Process for removing trioxane from an aqueous mixture | |
| AU2002217077A1 (en) | Process for separating phenol from a mixture comprising at least hydroxyacetone,cumene, water and phenol | |
| US3239435A (en) | Fractional distillation of methanol in the presence of an entrainer | |
| US6248926B1 (en) | Recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitirle and PRI | |
| AU2003211927A1 (en) | Method for recovering propylene oxide | |
| AU4289700A (en) | Impurities separation by distillation |