KR100789143B1 - 순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 - Google Patents
순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 Download PDFInfo
- Publication number
- KR100789143B1 KR100789143B1 KR1020060120472A KR20060120472A KR100789143B1 KR 100789143 B1 KR100789143 B1 KR 100789143B1 KR 1020060120472 A KR1020060120472 A KR 1020060120472A KR 20060120472 A KR20060120472 A KR 20060120472A KR 100789143 B1 KR100789143 B1 KR 100789143B1
- Authority
- KR
- South Korea
- Prior art keywords
- reaction
- catalyst
- dehydrogenation
- dimethylnaphthalene
- dmt
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
- C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
- C07C5/41—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/20—Polycyclic condensed hydrocarbons
- C07C15/24—Polycyclic condensed hydrocarbons containing two rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
- C07C2521/12—Silica and alumina
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
실시예 1 | 비교예 1 | ||||||||
고리화 반응 | 재고리화 반응 | ||||||||
조성 | 반응전 (%) | 반응후 (%) | 전환율 | 반응전 (%) | 반응후 (%) | 전환율 | 반응전 (%) | 반응후 (%) | 전환율 |
OTP | 99.2 | 9.98 | 89.9% | 85.18 | 6.69 | 92.1% | 99.1 | 18.34 | 81.5 |
1,5-DMT | 0 | 85.48 | 4.78 | 80.19 | 0 | 79.45 | |||
기타DMT | 0 | 1.42 | 선택도 | 0.09 | 1.53 | 선택도 | 0 | 0.85 | 선택도 |
1,5-DMN | 0 | 0 | 95.8% | 9.82 | 7.75 | 96.0% | 0 | 0 | 97.3% |
기타DMN | 0 | 0 | 0.17 | 0.17 | 0 | 0 | |||
헤비 | 0.08 | 2.98 | 0.02 | 3.67 | 0.09 | 1.35 |
실시예 2 (탈수소화 공정) | 비교예 2 (탈수소화 공정) | ||||
조성 | 반응전(%) | 반응후(%) | 조성 | 반응전(%) | 반응후(%) |
OTP | 8.18 | 8.17 | OTP | 18.34 | 18.11 |
1,5-DMT | 83.09 | 2.45 | 1.5-DMT | 79.45 | 1.89 |
기타 DMT | 1.14 | 0.83 | 기타 DMT | 0.85 | 0.72 |
1,5-DMN | 4.23 | 85.72 | 1,5-DMT | 0 | 72.85 |
기타 DMN | 0.09 | 0.11 | 기타 DMN | 0 | 0.58 |
헤비 | 3.27 | 2.41 | 헤비 | 1.35 | 0.78 |
실시예3 (1:0.6)중량비 | 실시예4 (1:1) 중량비 | ||||||
조성 | 반응전(%) | 반응후(%) | 전환율 | 조성 | 반응전(%) | 반응후(%) | 전환율 |
OTP | 83.3 | 6.28 | 92.4% | OTP | 86.32 | 6.93 | 91.9% |
1,5-DMT | 5.41 | 80.65 | 1,5-DMT | 4.44 | 81.14 | ||
기타 DMT | 0.07 | 0.76 | 선택도 | 기타 DMT | 0.06 | 0.88 | 선택도 |
1,5-DMN | 11.04 | 8.65 | 97.6% | 1,5-DMN | 9.03 | 7.16 | 96.6% |
기타 DMN | 0.15 | 0.15 | 기타 DMN | 0.12 | 0.12 | ||
헤비 | 0.02 | 3.51 | 헤비 | 0.04 | 3.25 |
실시예 5 (탈수소화 공정) | 실시예 6 (탈수소화 공정) | ||||
조성 | 반응전(%) | 반응후(%) | 조성 | 반응전(%) | 반응후(%) |
OTP | 6.28 | 6.12 | OTP | 6.93 | 6.89 |
1,5-DMT | 80.65 | 2.82 | 1.5-DMT | 81.14 | 3.24 |
기타 DMT | 0.76 | 0.21 | 기타 DMT | 0.88 | 0.42 |
1,5-DMN | 8.65 | 86.14 | 1,5-DMT | 7.16 | 85.37 |
기타 DMN | 0.15 | 1.21 | 기타 DMN | 0.12 | 0.65 |
헤비 | 3.51 | 3.41 | 헤비 | 3.25 | 3.43 |
Claims (7)
- 알케닐화 반응단계, 고리화 반응단계 및 탈수소화 반응단계로 이루어진 1,5-디메틸나프탈렌의 제조 방법에 있어서,탈수소화 반응단계 이후에 분별 증류하여 얻어진 미반응 5-오르토 톨릴 펜텐 및 알케닐화 반응단계 후 생성된 5-오르토 톨릴 펜텐을 혼합하여 재고리화 반응을 실시하는 단계를 더 포함하는 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
- 삭제
- 제1항에 있어서, 상기 재고리화 반응시 미반응 5-오르토 톨릴 펜텐 및 알케닐화 반응단계 후 생성된 5-오르토 톨릴 펜텐을 1:0.2~1의 중량비로 혼합하는 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
- 제1항에 있어서, 상기 재고리화 반응은 140℃의 반응온도 및 1기압의 반응압력에서 이루어지는 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
- 제1항에 있어서, 상기 재고리화 반응은 SiO₂/Al₂O₃의 몰비가 5.0 내지 300인 제올라이트 베타 촉매를 사용하는 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
- 제 1항에 있어서, 상기 재고리화 반응은 5-OTP[g]/촉매[g]× 시간[hr]으로 나타내는 투입원료의 시간당 중량공간속도(WHSV)가 0.5 ~ 5/hr인 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
- 제 1항에 있어서, 상기 탈수소화 반응은 0.5중량%의 팔라듐을 활성탄에 담지시킨 촉매; 350℃~400℃의 반응온도; 14기압의 반응압력; 및 10/hr의 1,5-DMT[g]/촉매[g]×시간[hr]으로 나타내는 투입원료의 시간당 중량공간속도(WHSV)의 조건에서 이루어지는 것을 특징으로 하는 1,5-디메틸나프탈렌의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060120472A KR100789143B1 (ko) | 2006-12-01 | 2006-12-01 | 순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060120472A KR100789143B1 (ko) | 2006-12-01 | 2006-12-01 | 순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100789143B1 true KR100789143B1 (ko) | 2007-12-28 |
Family
ID=39148127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020060120472A KR100789143B1 (ko) | 2006-12-01 | 2006-12-01 | 순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100789143B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5284987A (en) | 1990-06-15 | 1994-02-08 | Amoco Corporation | Preparation of a dimethyltetralin in a distillation reactor |
US5396008A (en) | 1992-08-03 | 1995-03-07 | Mitsubishi Gas Chemical Co., Inc. | Process for production of dimethyltetralin |
US5401892A (en) | 1988-06-24 | 1995-03-28 | Amoco Corporation | Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite |
KR20010037752A (ko) * | 1999-10-19 | 2001-05-15 | 김선동 | 5-오르토-톨릴펜텐으로부터 2,6-디메틸나프탈렌을 제조하는 방법 |
-
2006
- 2006-12-01 KR KR1020060120472A patent/KR100789143B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5401892A (en) | 1988-06-24 | 1995-03-28 | Amoco Corporation | Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite |
US5284987A (en) | 1990-06-15 | 1994-02-08 | Amoco Corporation | Preparation of a dimethyltetralin in a distillation reactor |
US5396008A (en) | 1992-08-03 | 1995-03-07 | Mitsubishi Gas Chemical Co., Inc. | Process for production of dimethyltetralin |
KR20010037752A (ko) * | 1999-10-19 | 2001-05-15 | 김선동 | 5-오르토-톨릴펜텐으로부터 2,6-디메틸나프탈렌을 제조하는 방법 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2887011B2 (ja) | 接触的アルケニルベンゼン環化 | |
KR100789143B1 (ko) | 순환 재반응 공정을 가진 1,5-디메틸나프탈렌의 제조방법 | |
JPS5811846B2 (ja) | レゾルシン マタハ レゾルシン ノ アルキルチカンユウドウタイ ノ セイゾウホウホウ | |
US5030781A (en) | Preparation of a dimethyltetralin | |
EP0586819B1 (en) | Process for production of dimethylnaphthalene | |
JPH02504510A (ja) | フェニルヒドロキノンの合成 | |
KR100769021B1 (ko) | 탈알루미늄된 제올라이트 베타 촉매를 이용한1,5-디메틸테트랄린의 제조방법 | |
KR20100077501A (ko) | 고수율의 1,5-디메틸나프탈렌의 제조방법 | |
KR100345344B1 (ko) | 5-오르토-톨릴펜텐으로부터 2,6-디메틸나프탈렌을 제조하는 방법 | |
EP0554704B1 (en) | Process for producing dimethyl naphthalene | |
KR100621823B1 (ko) | 2,6-디알킬테트랄린의 제조 방법 | |
US2920114A (en) | Preparation of p-dialkylbenzenes | |
KR100870674B1 (ko) | 탈알루미늄화된 제올라이트 베타 촉매를 이용한1,5-디메틸테트랄린의 제조 방법 | |
KR100824976B1 (ko) | 1,5-디메틸테트랄린의 제조공정 | |
JP3019707B2 (ja) | ジメチルナフタレンの異性化方法 | |
JP4104228B2 (ja) | テレフタル酸ジメチルとイソフタル酸ジメチルとの混合物の製造方法 | |
US3251859A (en) | Preparation of polyhalodibenzo-p-dioxins | |
JPH01197449A (ja) | 2,6−ジイソプロピルナフタレンの製造方法 | |
KR101140202B1 (ko) | 2,6-디알킬나프탈렌의 새로운 제조 방법 | |
KR20040060801A (ko) | 1,5-디메틸테트랄린의 제조방법 | |
JPH0769942A (ja) | ジメチルナフタレンの製造法 | |
JP2578540B2 (ja) | 2−メチルナフタレンの製造方法 | |
KR20100004631A (ko) | 고수율 1,5-디메틸테트랄린의 제조방법 | |
JPH01197447A (ja) | ジイソプロピルナフタレンの製造方法 | |
JP2024093437A (ja) | 触媒、ベンゼンの酸化方法、及び、ベンゼン酸化誘導体の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20120619 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20131105 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20141105 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20151112 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20161114 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20171113 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20181113 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20191112 Year of fee payment: 13 |