ES2175004T3 - Procedimiento para la limpieza de una columna de rectificacion. - Google Patents
Procedimiento para la limpieza de una columna de rectificacion.Info
- Publication number
- ES2175004T3 ES2175004T3 ES96115457T ES96115457T ES2175004T3 ES 2175004 T3 ES2175004 T3 ES 2175004T3 ES 96115457 T ES96115457 T ES 96115457T ES 96115457 T ES96115457 T ES 96115457T ES 2175004 T3 ES2175004 T3 ES 2175004T3
- Authority
- ES
- Spain
- Prior art keywords
- procedure
- column
- cleaning
- rectification column
- solvents
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000004140 cleaning Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000003637 basic solution Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 239000003495 polar organic solvent Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
- C07C57/03—Monocarboxylic acids
- C07C57/04—Acrylic acid; Methacrylic acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by 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
- Y10S203/22—Accessories
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
EN UN PROCEDIMIENTO PARA LA SEPARACION RECTIFICATIVA DE ACIDOS CARBOXILICOS INSATURADOS A PARTIR DE DISOLVENTES, EN LOS CUALES SE ABSORBIERON DESPUES DE UNA REACCION DE SINTESIS, SE INTERRUMPE LA RECTIFICACION POR UN CORTO ESPACIO DE TIEMPO, Y SE LAVA LA COLUMNA DE RECTIFICACION CON UNA SOLUCION BASICA. LA INTERRUPCION SE REALIZA P. E. EN PERIODOS REGULARES. COMO SOLUCION BASICA SE UTILIZAN HIDROXIDOS ALCALINOS Y/O ALCALINOTERREOS HIDROSOLUBLES, PREFERIBLEMENTE NAOH, KOH, CA(OH){SUB,2} O SUS OXIDOS ANHIDROS; DE MANERA ALTERNATIVA SE PUEDEN TAMBIEN UTILIZAR DISOLVENTES ORGANICOS POLARES QUE PRESENTEN REACCION ALCALINA, COMO AMINAS O AMIDAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19536179A DE19536179A1 (de) | 1995-09-28 | 1995-09-28 | Verfahren zur rektifikativen Abtrennung von ungesättigten Carbonsäuren aus Lösungsmitteln |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2175004T3 true ES2175004T3 (es) | 2002-11-16 |
Family
ID=7773486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96115457T Expired - Lifetime ES2175004T3 (es) | 1995-09-28 | 1996-09-26 | Procedimiento para la limpieza de una columna de rectificacion. |
Country Status (14)
Country | Link |
---|---|
US (1) | US5728272A (es) |
EP (1) | EP0765854B1 (es) |
JP (1) | JPH09110779A (es) |
KR (1) | KR100453791B1 (es) |
CN (1) | CN1068578C (es) |
CA (1) | CA2183673A1 (es) |
CZ (1) | CZ292498B6 (es) |
DE (2) | DE19536179A1 (es) |
DK (1) | DK0765854T3 (es) |
ES (1) | ES2175004T3 (es) |
MX (1) | MX9603731A (es) |
MY (1) | MY116551A (es) |
SG (1) | SG50765A1 (es) |
TW (1) | TW358088B (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6723398B1 (en) * | 1999-11-01 | 2004-04-20 | Dow Global Technologies Inc. | Polymer blend and fabricated article made from diverse ethylene interpolymers |
SG85160A1 (en) | 1999-03-02 | 2001-12-19 | Nippon Catalytic Chem Ind | Method for production of (meth) acrylic acid and/or (meth) acrylic esters |
US6722377B1 (en) * | 1999-08-27 | 2004-04-20 | Rohm And Haas Company | Process for cleaning reactors |
DE10000854A1 (de) * | 2000-01-12 | 2001-07-19 | Basf Ag | Verfahren zum Reinigen von Trennkolonnen |
US7275038B1 (en) * | 2000-08-18 | 2007-09-25 | The Crawford Group, Inc. | Web enabled business to business operating system for rental car services |
DE10144490A1 (de) * | 2001-09-10 | 2003-03-27 | Basf Ag | Verfahren zur Herstellung von (Meth)acrylsäureestern |
WO2003031384A1 (en) * | 2001-10-09 | 2003-04-17 | Mitsubishi Chemical Corporation | Process for production of (meth)acrylic compounds and method of distillation |
DE10211273A1 (de) | 2002-03-13 | 2003-03-06 | Basf Ag | Verfahren zur Reinigung von Bodenkolonnen, die zur rektifikativen Behandlung von (Meth)acrylsäure und/oder deren Ester enthaltenden Flüssigkeiten verwendet worden waren |
DE10237061A1 (de) * | 2002-08-09 | 2004-02-19 | Basf Ag | Verfahren zur Reinigung von Apparaten, in welchen(Meth)acrylsäure enthaltende organische Lösungsmittel behandelt und/oder erzeugt wurden |
JP3971974B2 (ja) * | 2002-09-03 | 2007-09-05 | 三菱化学株式会社 | (メタ)アクリル酸類の製造方法 |
US20040104108A1 (en) | 2002-12-03 | 2004-06-03 | Mason Robert Michael | High capacity purification of thermally unstable compounds |
DE10347664A1 (de) | 2003-10-09 | 2004-12-02 | Basf Ag | Verfahren der rektifikativen Auftrennung einer Acrylsäure enthaltenden Flüssigkeit |
CN101909882B (zh) | 2007-11-14 | 2014-06-25 | 陶氏环球技术有限责任公司 | 制品及其制备方法 |
CN107519158A (zh) * | 2009-05-08 | 2017-12-29 | 3M创新有限公司 | 口腔护理方法和套件 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3157693A (en) * | 1959-03-05 | 1964-11-17 | Celanese Corp | Recovery of acrylic acid esters by water wahing and fractionation |
US3470238A (en) * | 1964-11-06 | 1969-09-30 | Mitsubishi Petrochemical Co | Process for recovering acrylic and methacrylic ester |
US3818079A (en) * | 1970-07-07 | 1974-06-18 | Japanese Geon Co Ltd | Method of preventing the polymerization of unsaturated carboxylic acid |
DE2235326A1 (de) * | 1972-07-19 | 1974-02-07 | Degussa | Verfahren zur reinigung 1,2-ungesaettigter carbonsaeuren |
JPH05310636A (ja) * | 1992-05-14 | 1993-11-22 | Idemitsu Petrochem Co Ltd | アクリル酸エステル又はメタクリル酸エステルの製造方法 |
US5432925A (en) * | 1993-08-04 | 1995-07-11 | International Business Machines Corporation | System for providing a uniform external interface for an object oriented computing system |
DE4335172A1 (de) * | 1993-10-15 | 1995-04-20 | Basf Ag | Verfahren zur Reinigung von Roh-(Meth)acrylsäure |
-
1995
- 1995-09-28 DE DE19536179A patent/DE19536179A1/de not_active Withdrawn
-
1996
- 1996-08-13 US US08/696,193 patent/US5728272A/en not_active Expired - Fee Related
- 1996-08-19 CA CA002183673A patent/CA2183673A1/en not_active Abandoned
- 1996-08-21 TW TW085110170A patent/TW358088B/zh active
- 1996-08-23 MY MYPI96003485A patent/MY116551A/en unknown
- 1996-08-29 MX MX9603731A patent/MX9603731A/es not_active IP Right Cessation
- 1996-09-12 KR KR1019960039436A patent/KR100453791B1/ko not_active IP Right Cessation
- 1996-09-18 CZ CZ19962735A patent/CZ292498B6/cs not_active IP Right Cessation
- 1996-09-24 JP JP8251799A patent/JPH09110779A/ja active Pending
- 1996-09-25 CN CN96113381A patent/CN1068578C/zh not_active Expired - Fee Related
- 1996-09-26 EP EP96115457A patent/EP0765854B1/de not_active Revoked
- 1996-09-26 ES ES96115457T patent/ES2175004T3/es not_active Expired - Lifetime
- 1996-09-26 DE DE59609045T patent/DE59609045D1/de not_active Revoked
- 1996-09-26 DK DK96115457T patent/DK0765854T3/da active
- 1996-09-27 SG SG1996010696A patent/SG50765A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE19536179A1 (de) | 1997-04-03 |
EP0765854B1 (de) | 2002-04-10 |
CZ292498B6 (cs) | 2003-10-15 |
CN1151393A (zh) | 1997-06-11 |
CA2183673A1 (en) | 1997-03-29 |
US5728272A (en) | 1998-03-17 |
EP0765854A1 (de) | 1997-04-02 |
JPH09110779A (ja) | 1997-04-28 |
CZ273596A3 (cs) | 1998-05-13 |
KR100453791B1 (ko) | 2005-01-31 |
CN1068578C (zh) | 2001-07-18 |
MX9603731A (es) | 1997-03-29 |
KR970015554A (ko) | 1997-04-28 |
DE59609045D1 (de) | 2002-05-16 |
SG50765A1 (en) | 1998-07-20 |
TW358088B (en) | 1999-05-11 |
DK0765854T3 (da) | 2002-06-17 |
MY116551A (en) | 2004-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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