TW305830B - - Google Patents
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- Publication number
- TW305830B TW305830B TW083101994A TW83101994A TW305830B TW 305830 B TW305830 B TW 305830B TW 083101994 A TW083101994 A TW 083101994A TW 83101994 A TW83101994 A TW 83101994A TW 305830 B TW305830 B TW 305830B
- Authority
- TW
- Taiwan
- Prior art keywords
- stage
- crystallization
- acrylic acid
- purified
- residue
- Prior art date
Links
- 238000002425 crystallisation Methods 0.000 claims description 118
- 230000008025 crystallization Effects 0.000 claims description 109
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 85
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 84
- 238000000034 method Methods 0.000 claims description 80
- 230000003068 static effect Effects 0.000 claims description 62
- 238000000746 purification Methods 0.000 claims description 58
- 239000012535 impurity Substances 0.000 claims description 38
- 238000012546 transfer Methods 0.000 claims description 24
- 239000000155 melt Substances 0.000 claims description 23
- 239000013078 crystal Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 14
- 238000011049 filling Methods 0.000 claims description 5
- 238000001640 fractional crystallisation Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- 238000007639 printing Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims 3
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 1
- 229910052797 bismuth Inorganic materials 0.000 claims 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 32
- 239000000126 substance Substances 0.000 description 20
- 239000000203 mixture Substances 0.000 description 11
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 10
- 239000002178 crystalline material Substances 0.000 description 9
- 239000012071 phase Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000004821 distillation Methods 0.000 description 6
- 239000011552 falling film Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 5
- 235000019260 propionic acid Nutrition 0.000 description 5
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 239000012264 purified product Substances 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000035900 sweating Effects 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000237519 Bivalvia Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 240000007839 Kleinhovia hospita Species 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000000374 eutectic mixture Substances 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical compound OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH92293 | 1993-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW305830B true TW305830B (enExample) | 1997-05-21 |
Family
ID=4198293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW083101994A TW305830B (enExample) | 1993-03-26 | 1994-03-08 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5504247A (enExample) |
| EP (1) | EP0616998B1 (enExample) |
| JP (1) | JP2958673B2 (enExample) |
| KR (1) | KR100219943B1 (enExample) |
| CN (1) | CN1058256C (enExample) |
| DE (1) | DE59400240D1 (enExample) |
| ES (1) | ES2086990T3 (enExample) |
| SG (1) | SG93785A1 (enExample) |
| TW (1) | TW305830B (enExample) |
Families Citing this family (98)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2727061B2 (ja) | 1993-10-13 | 1998-03-11 | 日揮株式会社 | 晶析方法及び晶析装置 |
| JP3724864B2 (ja) * | 1995-12-01 | 2005-12-07 | 日揮株式会社 | 晶析方法 |
| DE19600955A1 (de) * | 1996-01-12 | 1997-07-17 | Basf Ag | Verfahren zur Herstellung von Acrylsäure und deren Ester |
| DE19606877A1 (de) * | 1996-02-23 | 1997-08-28 | Basf Ag | Verfahren zur Reinigung von Acrylsäure und Methacrylsäure |
| DE19627679A1 (de) * | 1996-07-10 | 1998-01-15 | Basf Ag | Verfahren zur Reinigung von Roh-Acrylsäure durch Kristallisation |
| DE19627847A1 (de) * | 1996-07-10 | 1998-01-15 | Basf Ag | Verfahren zur Herstellung von Acrylsäure |
| GB9714632D0 (en) * | 1997-07-12 | 1997-09-17 | Ici Plc | Process for the production of methyl methacrylate |
| MY120051A (en) * | 1997-07-30 | 2005-08-30 | Mitsubishi Rayon Co | Process for purification of (meth)acrylic acid |
| DE19740252A1 (de) | 1997-09-12 | 1999-03-18 | Basf Ag | Verfahren zur Herstellung von Acrylsäure und Methacrylsäure |
| DE19829477A1 (de) * | 1998-07-01 | 2000-01-05 | Basf Ag | Verfahren zur Reinigung von Acrylsäure oder Methacrylsäure durch Kristallisation und Destillation |
| DE19833049A1 (de) * | 1998-07-22 | 2000-01-27 | Basf Ag | Verfahren zur Herstellung von Acrylsäure |
| DE19904820A1 (de) * | 1999-02-05 | 2000-08-10 | Stockhausen Chem Fab Gmbh | Verfahren und Vorrichtung zur Reinigung von Stoffen mittels Kristallisation |
| MY122671A (en) | 1999-03-06 | 2006-04-29 | Basf Ag | Fractional condensation of a product gas mixture containing acrylic acid |
| DE19923389A1 (de) | 1999-05-21 | 2000-08-17 | Basf Ag | Verfahren zum Lagern und/oder Transportieren von Reinacrylsäure |
| US6500982B1 (en) * | 1999-06-28 | 2002-12-31 | Rohm And Haas Company | Process for preparing (meth) acrylic acid |
| EP1214286A4 (en) * | 1999-09-22 | 2004-08-11 | Cognis Corp | CLEANING AND RECOVERY OF DICARBONIC ACIDS BY MELTING CRYSTALIZATION |
| FR2799386B1 (fr) | 1999-10-12 | 2001-12-28 | Befs Prokem | Procede de purification de produits organiques par cristallisation fractionnee a vitesse de circulation variable |
| JP3938646B2 (ja) | 2000-01-14 | 2007-06-27 | 株式会社日本触媒 | アクリル酸の製造方法 |
| DE10003498A1 (de) | 2000-01-27 | 2001-08-02 | Basf Ag | Reinigungsverfahren für (Meth)acrylsäure |
| CZ303896B6 (cs) | 2000-04-11 | 2013-06-12 | Basf Aktiengesellschaft | Zpusob cistení taveniny surové kyseliny akrylové |
| DE10026407A1 (de) | 2000-05-29 | 2001-12-06 | Basf Ag | Verfahren der diskontinuierlichen kristallisativen Reinigung von Roh-Acrylsäure |
| JP4673958B2 (ja) * | 2000-06-19 | 2011-04-20 | 株式会社日本触媒 | 固形物除去装置 |
| JP5008215B2 (ja) * | 2000-09-29 | 2012-08-22 | 三菱瓦斯化学株式会社 | 晶析方法および装置 |
| BR0206396A (pt) * | 2001-01-12 | 2004-02-10 | Degussa | Processo contìnuo para preparação e purificação de ácido (met)acrìlico |
| DE10122787A1 (de) | 2001-05-10 | 2002-06-06 | Basf Ag | Verfahren zur Herstellung einer gereinigten Schmelze wenigstens eines Monomeren |
| DE10122788A1 (de) * | 2001-05-10 | 2002-06-06 | Basf Ag | Verfahren der kristallisativen Reinigung einer Roh-Schmelze wenigstens eines Monomeren |
| EP2311791B1 (en) * | 2001-12-04 | 2019-01-23 | Mitsubishi Chemical Corporation | Process for producing (meth)acrylic acids |
| DE10211686A1 (de) * | 2002-03-15 | 2003-10-02 | Stockhausen Chem Fab Gmbh | (Meth)Acrylsäurekristall und Verfahren zur Herstellung und Aufreinigung von wässriger (Meth)Acrylsäure |
| DE10221176A1 (de) | 2002-05-13 | 2003-11-27 | Basf Ag | Verfahren zur Herstellung geruchsarmer Hydrogelbildender Polymerisate |
| DE10301040B4 (de) | 2003-01-13 | 2005-07-21 | Stockhausen Gmbh | Aufreinigung eines Monomers durch Extraktion mit einem Phasenbildner und Kristallisation |
| JP2005247731A (ja) * | 2004-03-03 | 2005-09-15 | Mitsubishi Chemicals Corp | （メタ）アクリル酸組成物及びその製造方法 |
| DE102004034316B4 (de) | 2004-07-15 | 2015-07-16 | Evonik Degussa Gmbh | Ein Verfahren zur Herstellung von (Meth)Acrylsäure |
| DE102004044639A1 (de) * | 2004-09-13 | 2006-05-24 | Stockhausen Gmbh | Verfahren zur extraktiven Aufreinigung von (Meth)Acrylsäure unter Einsatz eines Trennmittels |
| DE102004044638A1 (de) * | 2004-09-13 | 2006-03-30 | Stockhausen Gmbh | Aufreinigung eines (Meth)Acrylsäure enthaltenen Destillationssumpfprodukts durch Kristallisation |
| DE102004058907A1 (de) | 2004-12-07 | 2006-06-08 | Basf Ag | Reinigung von ionischen Flüssigkeiten |
| US7705181B2 (en) | 2005-03-01 | 2010-04-27 | Basf Akiengesellschaft | Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component |
| WO2006092405A1 (de) * | 2005-03-01 | 2006-09-08 | Basf Aktiengesellschaft | Verfahren zur abtrennung von methacrylsäure aus acrylsäure als hauptbestandteil sowie zielprodukt und methacrylsäure als nebenkomponente enthaltender flüssiger phase |
| DE102005009890A1 (de) * | 2005-03-01 | 2006-09-07 | Basf Ag | Verfahren zur Abtrennung von Methacrylsäure aus Acrylsäure als Hauptbestandteil sowie Zielprodukt und Methacrylsäure als Nebenkomponente enthaltender flüssiger Phase |
| JP2007191449A (ja) * | 2006-01-20 | 2007-08-02 | Nippon Shokubai Co Ltd | アクリル酸の製造方法 |
| ES2368798T3 (es) | 2006-09-12 | 2011-11-22 | Sulzer Chemtech Ag | Procedimiento para la purificación de líquidos iónicos. |
| DE102007004960A1 (de) | 2007-01-26 | 2008-07-31 | Basf Se | Verfahren zur Herstellung von Acrylsäure |
| DE102007055086A1 (de) | 2007-11-16 | 2009-05-20 | Basf Se | Verfahren zur Herstellung von Acrylsäure |
| DE102007014603A1 (de) | 2007-03-23 | 2008-09-25 | Basf Se | Verfahren des Transports einer aus einem Lagerbehälter entnommenen flüssigen Monomerenphase im Tank eines Tankwagens oder eines Tankschiffs |
| DE102007014606A1 (de) | 2007-03-23 | 2008-09-25 | Basf Se | Verfahren zur Lagerung einer unter den Bedingungen der Lagerung flüssigen Monomerenphase |
| DE102007043748A1 (de) * | 2007-09-13 | 2008-09-11 | Basf Se | Verfahren zur kontinuierlichen Abtrennung eines Zielproduktes X in Form von feinteiligem Kristallisat |
| JP4822559B2 (ja) * | 2007-09-19 | 2011-11-24 | ローム アンド ハース カンパニー | （メタ）アクリル酸生成物流からのプロピオン酸の選択的減少のための改良された方法 |
| EP2085376B1 (en) | 2008-01-30 | 2012-09-05 | Evonik Röhm GmbH | Process for preparation of high purity methacrylic acid |
| FR2934264B1 (fr) * | 2008-07-22 | 2012-07-20 | Arkema France | Fabrication d'esters de vinyle a partir de matieres renouvelables, esters de vinyle obtenus et utilisations |
| JP2011529094A (ja) | 2008-07-28 | 2011-12-01 | ビーエーエスエフ ソシエタス・ヨーロピア | アクリル酸のｃ３前駆体化合物のガス状生成混合物から主生成物として含有されるアクリル酸および副生成物として含有されるグリオキサールを分離する方法 |
| DE102008040799A1 (de) | 2008-07-28 | 2008-12-11 | Basf Se | Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enthaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal |
| DE102008041573A1 (de) | 2008-08-26 | 2010-03-04 | Basf Se | Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enhaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal |
| US8530699B2 (en) * | 2009-05-19 | 2013-09-10 | Nippon Shokubai Co., Ltd. | Process for production of (meth) acrylic acid |
| CN102448923B (zh) * | 2009-06-01 | 2015-06-17 | 株式会社日本触媒 | (甲基)丙烯酸的析晶方法及产品(甲基)丙烯酸的阻聚剂含量的调整方法 |
| US8846977B2 (en) * | 2009-06-30 | 2014-09-30 | Nippon Shokubai Co. Ltd. | Crystallization unit for acrylic acid and method for crystallization of acrylic acid using the same |
| EP2450338B1 (en) * | 2009-07-01 | 2020-02-12 | Nippon Shokubai Co., Ltd. | Process for production of (meth)acrylic acid |
| CN102471211B (zh) * | 2009-07-02 | 2016-02-03 | 株式会社日本触媒 | (甲基)丙烯酸的制备方法 |
| WO2011001894A1 (ja) * | 2009-07-03 | 2011-01-06 | 株式会社日本触媒 | （メタ）アクリル酸の晶析装置および（メタ）アクリル酸の晶析方法 |
| FR2948365B1 (fr) * | 2009-07-22 | 2011-09-09 | Arkema France | Procede de fabrication d'acide acrylique bio-ressource a partir de glycerol |
| FR2948366B1 (fr) | 2009-07-22 | 2012-08-17 | Arkema France | Procede de fabrication d'acide acrylique bio-ressource a partir de glycerol |
| DE102010031507A1 (de) | 2010-06-02 | 2011-12-08 | Evonik Stockhausen Gmbh | Verfahren zur Reinigung kristalliner Phasen aus Produktgemischen mittels Schichtkristallisation |
| DE102011076931A1 (de) | 2011-06-03 | 2012-12-06 | Basf Se | Wässrige Lösung, enthaltend Acrylsäure und deren konjugierte Base |
| JP5774928B2 (ja) * | 2011-07-19 | 2015-09-09 | 株式会社日本触媒 | アクリル酸の製造方法 |
| US8536368B2 (en) | 2011-10-03 | 2013-09-17 | Celanese International Corporation | Processes for the production of acrylic acids and acrylates from a trioxane feed |
| US8658822B2 (en) | 2011-10-03 | 2014-02-25 | Celanese International Corporation | Processes for producing acrylic acids and acrylates |
| US8729299B2 (en) | 2011-10-03 | 2014-05-20 | Celanese International Corporation | Processes for the production of acrylic acids and acrylates |
| WO2013163806A1 (en) | 2012-05-03 | 2013-11-07 | Evonik Industries Ag | Process for preparation of highly pure, non-yellowing methacrylic acid |
| WO2014108285A1 (en) * | 2013-01-14 | 2014-07-17 | Sulzer Chemtech Ag | Multi-stage crystallisation process and apparatus to purify a compound |
| EP2777791A1 (en) | 2013-03-11 | 2014-09-17 | Sulzer Chemtech AG | Process and apparatus for purification of a stream containing a cyclic ester of an alpha-hydroxycarboxylic acid |
| SG11201507796VA (en) | 2013-03-18 | 2015-10-29 | Evonik Roehm Gmbh | Process for preparation of methacrylic acid and methacrylic acid esters |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| BE521274A (enExample) * | 1952-07-11 | |||
| US2885431A (en) * | 1954-06-21 | 1959-05-05 | Phillips Petroleum Co | Separation by crystallization |
| US2868830A (en) * | 1954-10-18 | 1959-01-13 | Phillips Petroleum Co | Separation by crystallization |
| US3050952A (en) * | 1960-10-05 | 1962-08-28 | Phillips Petroleum Co | Separation by crystallization |
| DE1620756A1 (de) * | 1966-07-13 | 1970-07-16 | Vickers Zimmer Ag Plangung Und | Verfahren zur Reinigung von stark verunreinigten Lactamen von omega-Aminocarbonsaeuren |
| AT279547B (de) * | 1967-04-14 | 1970-03-10 | Buchs Metallwerk Ag | Verfahren und Vorrichtung zur Trennung oder Reinigung schmelzflüssiger, flüssiger oder gelöster Stoffe durch fraktioniertes Kristallisieren |
| DE2606364C3 (de) * | 1976-02-18 | 1988-05-26 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Stofftrennung aus einem flüssigen Gemisch durch fraktionierte Kristallisation |
| US4230888A (en) * | 1977-12-15 | 1980-10-28 | Standard Oil Company (Ohio) | Process for purification of acrylic acid by fractional crystallization |
| US4780568A (en) * | 1984-12-14 | 1988-10-25 | Ashland Oil, Inc. | Purification of methacrylic acid from an oxydehydrogenation by crystallization |
-
1994
- 1994-03-08 TW TW083101994A patent/TW305830B/zh not_active IP Right Cessation
- 1994-03-14 DE DE59400240T patent/DE59400240D1/de not_active Expired - Lifetime
- 1994-03-14 EP EP94810158A patent/EP0616998B1/de not_active Expired - Lifetime
- 1994-03-14 SG SG9606214A patent/SG93785A1/en unknown
- 1994-03-14 ES ES94810158T patent/ES2086990T3/es not_active Expired - Lifetime
- 1994-03-22 US US08/216,162 patent/US5504247A/en not_active Expired - Lifetime
- 1994-03-24 KR KR1019940005927A patent/KR100219943B1/ko not_active Expired - Lifetime
- 1994-03-25 JP JP6077928A patent/JP2958673B2/ja not_active Expired - Lifetime
- 1994-03-26 CN CN94103445A patent/CN1058256C/zh not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0748311A (ja) | 1995-02-21 |
| DE59400240D1 (de) | 1996-06-05 |
| EP0616998B1 (de) | 1996-05-01 |
| ES2086990T3 (es) | 1996-07-01 |
| JP2958673B2 (ja) | 1999-10-06 |
| SG93785A1 (en) | 2003-01-21 |
| US5504247A (en) | 1996-04-02 |
| CN1058256C (zh) | 2000-11-08 |
| EP0616998A1 (de) | 1994-09-28 |
| KR100219943B1 (ko) | 1999-09-01 |
| CN1105014A (zh) | 1995-07-12 |
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