JP5337051B2 - 高純度の2,6−ジメチルナフタレンの連続結晶化分離精製方法およびその装置 - Google Patents
高純度の2,6−ジメチルナフタレンの連続結晶化分離精製方法およびその装置 Download PDFInfo
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- JP5337051B2 JP5337051B2 JP2009543924A JP2009543924A JP5337051B2 JP 5337051 B2 JP5337051 B2 JP 5337051B2 JP 2009543924 A JP2009543924 A JP 2009543924A JP 2009543924 A JP2009543924 A JP 2009543924A JP 5337051 B2 JP5337051 B2 JP 5337051B2
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- dimethylnaphthalene
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- YGYNBBAUIYTWBF-UHFFFAOYSA-N 2,6-dimethylnaphthalene Chemical compound C1=C(C)C=CC2=CC(C)=CC=C21 YGYNBBAUIYTWBF-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000002425 crystallisation Methods 0.000 title claims abstract description 99
- 230000008025 crystallization Effects 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000000926 separation method Methods 0.000 title claims abstract description 29
- 238000000746 purification Methods 0.000 title claims abstract description 12
- QNLZIZAQLLYXTC-UHFFFAOYSA-N 1,2-dimethylnaphthalene Chemical class C1=CC=CC2=C(C)C(C)=CC=C21 QNLZIZAQLLYXTC-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011541 reaction mixture Substances 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims description 42
- 239000013078 crystal Substances 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 31
- 239000012452 mother liquor Substances 0.000 claims description 20
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000001953 recrystallisation Methods 0.000 claims description 9
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229940078552 o-xylene Drugs 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 22
- 238000002156 mixing Methods 0.000 description 12
- 238000003860 storage Methods 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 9
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004821 distillation Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000374 eutectic mixture Substances 0.000 description 3
- 238000006317 isomerization reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- LRQYSMQNJLZKPS-UHFFFAOYSA-N 2,7-dimethylnaphthalene Chemical group C1=CC(C)=CC2=CC(C)=CC=C21 LRQYSMQNJLZKPS-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010575 fractional recrystallization Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- VPGSXIKVUASQIY-UHFFFAOYSA-N 1,2-dibutylnaphthalene Chemical compound C1=CC=CC2=C(CCCC)C(CCCC)=CC=C21 VPGSXIKVUASQIY-UHFFFAOYSA-N 0.000 description 1
- UUCHLIAGHZJJER-UHFFFAOYSA-N 1,2-diethylnaphthalene Chemical compound C1=CC=CC2=C(CC)C(CC)=CC=C21 UUCHLIAGHZJJER-UHFFFAOYSA-N 0.000 description 1
- KXTWDIPAGFPHCA-UHFFFAOYSA-N 1,2-dipropylnaphthalene Chemical compound C1=CC=CC2=C(CCC)C(CCC)=CC=C21 KXTWDIPAGFPHCA-UHFFFAOYSA-N 0.000 description 1
- SDDBCEWUYXVGCQ-UHFFFAOYSA-N 1,5-dimethylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1C SDDBCEWUYXVGCQ-UHFFFAOYSA-N 0.000 description 1
- CBMXCNPQDUJNHT-UHFFFAOYSA-N 1,6-dimethylnaphthalene Chemical compound CC1=CC=CC2=CC(C)=CC=C21 CBMXCNPQDUJNHT-UHFFFAOYSA-N 0.000 description 1
- WWGUMAYGTYQSGA-UHFFFAOYSA-N 2,3-dimethylnaphthalene Chemical group C1=CC=C2C=C(C)C(C)=CC2=C1 WWGUMAYGTYQSGA-UHFFFAOYSA-N 0.000 description 1
- 239000005264 High molar mass liquid crystal Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
式(1)
[実施例1]
2,6−DMNの平均組成が42.53重量%であるDMN反応混合物を1次溶媒混合槽へ15kg/hrの速度で移送した。前記反応混合物は、1次結晶化に使用された2次結晶化分離母液と混合して平均溶媒比4:1に調製した。混合した原料は、第1結晶化装置へ導入して結晶化した。この際、結晶化装置の出口の温度は0℃であった。1次結晶化した後、遠心分離により得られた結晶を抽出して分析した。その結果を下記表2に示す。1次結晶化により得られた結晶は、80℃の溶融槽で溶解して2次溶媒混合槽へ移送した。純粋なエタノール溶媒は、1次結晶量に合わせて8:1の比率で2次溶媒混合槽で溶解して60kg/hrの流量で第2結晶化装置へ移送した。この際、第2結晶化装置の出口の温度は0℃であった。2次結晶化後、結晶を遠心分離して、収率95.6%で純度99.20重量%の結晶を得た。
内部スクレーパーの構造による結晶化の影響を評価するために、異なる構造のスクレーパーを使用したことを除いて、実施例1と同様の方法で結晶を得た。その結果の平均値を下記表3に示す。
この例では、本発明のシェル−チューブ式表面スクレーパー晶析装置の代わりに、一般的なバッチジャケット冷却晶析装置を使用した。第1結晶化装置としては、バッフルが付着されたジャケット晶析装置を使用し、第2結晶化装置としては、冷却効率および熱伝達効率を高めるためにドラフトチューブを備えた晶析装置を使用した。
Claims (7)
- 原料としてのジメチルナフタレン反応混合物から2,6−ジメチルナフタレンを分離精製する方法において、前記方法は、ジメチルナフタレン反応混合物をシェル−チューブ式表面スクレーパー結晶化装置(shell-tube type crystallization apparatus)を用いて、2段階以上の多段階からなる結晶化および再結晶化する段階を含むことを特徴とし、かつ、ジメチルナフタレン反応混合物と溶媒との比率は、1次結晶化の場合には1:3〜1:4、2次結晶化の場合には1:5〜1:8であることを特徴とする、2,6−ジメチルナフタレンの分離精製方法。
- 前記シェル−チューブ式表面スクレーパー結晶化装置における冷媒のフローは、前記原料のフローと反対方向であることを特徴とする、請求項1に記載の2,6−ジメチルナフタレンの分離精製方法。
- 前記結晶化および再結晶化段階は、内壁に付着した結晶を除去し、かつ前記原料と前記結晶とを連続的に移送できる構造を有するシェル−チューブ式表面スクレーパー結晶化装置を使用することを特徴とする、請求項1に記載の2,6−ジメチルナフタレンの分離精製方法。
- 前記結晶化および再結晶化段階は、前記結晶化装置の入口および出口における前記原料の温度がそれぞれ50〜60℃および0〜−10℃であることを特徴とする、請求項1に記載の2,6−ジメチルナフタレンの分離精製方法。
- 前記結晶化および再結晶化段階は、前記結晶化装置の入口および出口における冷媒の温度がそれぞれ−15〜−10℃および30〜40℃であることを特徴とする、請求項1に記載の2,6−ジメチルナフタレンの分離精製方法。
- 1次結晶化に使用される溶媒は、2次結晶化に使用された母液と混合されて結晶化することを特徴とする、請求項1に記載の2,6−ジメチルナフタレンの分離精製方法。
- 1次結晶化により得られた結晶の純度は、70〜80重量%であり、2次結晶化により得られた結晶の純度は、99重量%以上であることを特徴とする、請求項1〜6のいずれか1項記載の2,6−ジメチルナフタレンの分離精製方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060138696A KR100894785B1 (ko) | 2006-12-29 | 2006-12-29 | 고순도 2,6-디메틸나프탈렌 연속 결정화 분리정제 방법 및그 장치 |
KR10-2006-0138696 | 2006-12-29 | ||
PCT/KR2007/006690 WO2008082107A1 (en) | 2006-12-29 | 2007-12-20 | Method and system for separation and purification of high-purity 2,6-dimethylnaphthalene by continuous crystallization |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010514755A JP2010514755A (ja) | 2010-05-06 |
JP5337051B2 true JP5337051B2 (ja) | 2013-11-06 |
Family
ID=39588735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009543924A Active JP5337051B2 (ja) | 2006-12-29 | 2007-12-20 | 高純度の2,6−ジメチルナフタレンの連続結晶化分離精製方法およびその装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100010281A1 (ja) |
EP (1) | EP2125689A4 (ja) |
JP (1) | JP5337051B2 (ja) |
KR (1) | KR100894785B1 (ja) |
CN (1) | CN101568513B (ja) |
WO (1) | WO2008082107A1 (ja) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU416845B2 (en) * | 1968-09-18 | 1971-08-27 | Union Carbide Australia Limited | Solid-liquid continuous countercurrent purifier |
US3890403A (en) * | 1973-11-14 | 1975-06-17 | Teijin Ltd | Process for separating and recovering 2,6-dimethylnaththalenes |
FI70376C (fi) * | 1984-07-04 | 1986-09-19 | Neste Oy | Foerfarande och anordning foer separering eller rening av organiska aemnen |
DE3839229A1 (de) * | 1988-11-19 | 1990-05-23 | Krupp Koppers Gmbh | Verfahren zur gewinnung von p-xylol mit einer reinheit von mehr als 99,8 gew.-% |
PL158769B1 (en) * | 1988-11-30 | 1992-10-30 | Inst Chemii Przemyslowej | Method isolating and purifying antracene of chemistry-of-coke origin |
US5510563A (en) * | 1993-12-29 | 1996-04-23 | Amoco Corporation | Crystallizaiton of 2,6-dimethylnaphthalene |
FR2729660A1 (fr) * | 1995-01-20 | 1996-07-26 | Inst Francais Du Petrole | Procede de production de paraxylene comportant une cristallisation a haute temperature a au moins un etage et une fusion partielle des cristaux |
US5948949A (en) * | 1996-02-28 | 1999-09-07 | Mitsubishi Gas Chemical Company, Inc. | Process for producing 2,6-dimethylnaphthalene |
US6057487A (en) * | 1997-12-30 | 2000-05-02 | Chevron Chemical Company | Method for producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization |
ES2158752B1 (es) * | 1998-07-16 | 2002-06-16 | Hrs Spiratube S L | Mejoras en intercambiadores termicos para tratamiento de liquidos. |
JP2002541231A (ja) * | 1999-04-08 | 2002-12-03 | 株式会社神戸製鋼所 | 2,6−ジアルキルナフタレンの製造方法 |
KR100463076B1 (ko) * | 2002-03-18 | 2004-12-23 | 한국화학연구원 | 2,6-디메틸나프탈렌의 분리정제방법 |
KR100754744B1 (ko) * | 2006-05-01 | 2007-09-03 | 주식회사 효성 | 2,6-디메틸나프탈렌의 분리 및 정제방법 |
KR100721442B1 (ko) * | 2006-06-23 | 2007-05-23 | 주식회사 효성 | 이성화 반응 및 결정화 공정을 포함하는2,6-디메틸나프탈렌의 분리 및 정제 방법 |
-
2006
- 2006-12-29 KR KR1020060138696A patent/KR100894785B1/ko active IP Right Grant
-
2007
- 2007-12-20 US US12/439,524 patent/US20100010281A1/en not_active Abandoned
- 2007-12-20 EP EP07851656A patent/EP2125689A4/en not_active Withdrawn
- 2007-12-20 WO PCT/KR2007/006690 patent/WO2008082107A1/en active Application Filing
- 2007-12-20 CN CN2007800483594A patent/CN101568513B/zh active Active
- 2007-12-20 JP JP2009543924A patent/JP5337051B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
EP2125689A4 (en) | 2012-01-25 |
WO2008082107A1 (en) | 2008-07-10 |
CN101568513A (zh) | 2009-10-28 |
JP2010514755A (ja) | 2010-05-06 |
KR100894785B1 (ko) | 2009-04-24 |
US20100010281A1 (en) | 2010-01-14 |
EP2125689A1 (en) | 2009-12-02 |
CN101568513B (zh) | 2013-05-01 |
KR20080062655A (ko) | 2008-07-03 |
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