GB809908A - A continuous process for preparing meta di-isopropylbenzene - Google Patents
A continuous process for preparing meta di-isopropylbenzeneInfo
- Publication number
- GB809908A GB809908A GB22006/55A GB2200655A GB809908A GB 809908 A GB809908 A GB 809908A GB 22006/55 A GB22006/55 A GB 22006/55A GB 2200655 A GB2200655 A GB 2200655A GB 809908 A GB809908 A GB 809908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- meta
- ortho
- fraction
- isopropyl
- alkylation
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
- C07C15/02—Monocyclic hydrocarbons
-
- 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
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
- C07C5/2732—Catalytic processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
- C07C6/08—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
- C07C6/12—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
- C07C6/126—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of more than one hydrocarbon
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Meta-di-isopropylbenzene is prepared in a continuous process by alkylating benzene or cumene or a mixture thereof, isomerizing the fraction containing ortho- and meta-diisopropyl benzene, and separating by distillation a fraction consisting of ortho- and meta-diisopropylbenzenes from the isomerization product. A fraction containing more than 2 isopropyl groups may be removed from the alkylation product and subjected to transalkylation with benzene or cumene or mixtures thereof; the ortho- and meta-diisopropylbenzene fraction from the product may be combined with the similar fraction from the isomerizer. The mixture of ortho- and metadiisopropylbenzenes may also be transalkylated, either alone or together with the higher alkylated products. Alkylation agents specified are isopropyl halides such as isopropyl chloride, isopropyl alcohol, propane or a propene-propane mixture containing 60 per cent propene. Alkylation catalysts referred to are Friedel-Crafts catalysts, e.g. AlCl3, concentrated H2SO4, HF or a cracking catalyst such as a silicate which may consist mainly of SiO2 and also contain oxides of Al, Zr, Mg, Ca, Na, K, H, C and S in chemically bound form; or mixtures of Al2O3 and SiO2. Specifications 737,439, 749,186, 749,187, 770,224 and 772,635 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL809908X | 1954-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809908A true GB809908A (en) | 1959-03-04 |
Family
ID=19836814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22006/55A Expired GB809908A (en) | 1954-07-30 | 1955-07-29 | A continuous process for preparing meta di-isopropylbenzene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809908A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012570A2 (en) * | 1978-12-14 | 1980-06-25 | Mobil Oil Corporation | Selective reaction of 1,4-disubstituted benzene compounds |
| EP0012613B1 (en) * | 1978-12-14 | 1984-08-08 | Mobil Oil Corporation | A process for producing 3-alkylphenols and 1,3-dihydroxybenzene |
| WO2002026671A1 (en) * | 2000-09-25 | 2002-04-04 | Exxonmobil Chemical Patents Inc. | Maximizing meta-isomers in the production of dialkylbenzene compounds |
| GB2398572A (en) * | 2002-11-15 | 2004-08-25 | Goodyear Tire & Rubber | Process for synthesizing specific isomers of diisopropylbenzene |
| US7102043B2 (en) * | 2002-11-04 | 2006-09-05 | The Goodyear Tire + Rubber Company | Process for synthesizing diisopropylbenzene |
| US7411101B2 (en) * | 2001-02-07 | 2008-08-12 | Exxonmobil Chemical Patents Inc. | Production of alkylaromatic compounds |
| CN103570488A (en) * | 2012-07-23 | 2014-02-12 | 中国石油化工股份有限公司 | Method for preparing m-diisopropylbenzene by isomerising high-ortho-position mixed diisopropylbenzene |
-
1955
- 1955-07-29 GB GB22006/55A patent/GB809908A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012570A2 (en) * | 1978-12-14 | 1980-06-25 | Mobil Oil Corporation | Selective reaction of 1,4-disubstituted benzene compounds |
| EP0012570B1 (en) * | 1978-12-14 | 1983-10-12 | Mobil Oil Corporation | Selective reaction of 1,4-disubstituted benzene compounds |
| EP0012613B1 (en) * | 1978-12-14 | 1984-08-08 | Mobil Oil Corporation | A process for producing 3-alkylphenols and 1,3-dihydroxybenzene |
| WO2002026671A1 (en) * | 2000-09-25 | 2002-04-04 | Exxonmobil Chemical Patents Inc. | Maximizing meta-isomers in the production of dialkylbenzene compounds |
| US7411101B2 (en) * | 2001-02-07 | 2008-08-12 | Exxonmobil Chemical Patents Inc. | Production of alkylaromatic compounds |
| US7102043B2 (en) * | 2002-11-04 | 2006-09-05 | The Goodyear Tire + Rubber Company | Process for synthesizing diisopropylbenzene |
| GB2398572A (en) * | 2002-11-15 | 2004-08-25 | Goodyear Tire & Rubber | Process for synthesizing specific isomers of diisopropylbenzene |
| GB2398572B (en) * | 2002-11-15 | 2005-02-23 | Goodyear Tire & Rubber | Process for synthesizing diisopropylbenzene |
| CN103570488A (en) * | 2012-07-23 | 2014-02-12 | 中国石油化工股份有限公司 | Method for preparing m-diisopropylbenzene by isomerising high-ortho-position mixed diisopropylbenzene |
| CN103570488B (en) * | 2012-07-23 | 2015-08-26 | 中国石油化工股份有限公司 | A kind of method of high ortho position mixing diisopropylbenzene(DIPB) isomerization m-Diisopropylbenzene |
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