GB1356726A - P-and m-cymene separation - Google Patents
P-and m-cymene separationInfo
- Publication number
- GB1356726A GB1356726A GB3724072A GB3724072A GB1356726A GB 1356726 A GB1356726 A GB 1356726A GB 3724072 A GB3724072 A GB 3724072A GB 3724072 A GB3724072 A GB 3724072A GB 1356726 A GB1356726 A GB 1356726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cymene
- mixture
- cymenes
- desorbent
- raffinate
- 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
- C07C7/00—Purification; Separation; Use of additives
- C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
- C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1356726 Separating m- and p-cymenes HERCULES Inc 9 Aug 1972 [10 Aug 1971] 37240/72 Heading C5E p- or m-cymene is separated from a mixture comprising p-cymene, m-cymene and, optionally, o-cymene by selective sorption on a molecular sieve zeolite. The mixture is preferably in the liquid phase. Suitable zeolites are type X or type Y, e.g. 13X based exchanged with Ba and K salts. The sorbed cymene isomer may be displaced by a desorbent, e.g. benzene or toluene. A simulated moving bed scheme is described involving 4 zones of sorbent connected in series to which the feed mixture and desorbent are introduced and the extract and raffinate are removed, these inlets and outlets to the 4 zones being cyclically changed. The extract and the raffinate may each be distilled to recover m- and p-cymenes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17043671A | 1971-08-10 | 1971-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1356726A true GB1356726A (en) | 1974-06-12 |
Family
ID=22619845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3724072A Expired GB1356726A (en) | 1971-08-10 | 1972-08-09 | P-and m-cymene separation |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA968278A (en) |
| DE (1) | DE2239423C3 (en) |
| ES (1) | ES405700A1 (en) |
| FR (1) | FR2148567B1 (en) |
| GB (1) | GB1356726A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1275264C (en) * | 1985-03-26 | 1990-10-16 | Daniel D. Rosenfeld | Process for the separation of c10 aromatics isomers |
-
1972
- 1972-07-17 CA CA147,240A patent/CA968278A/en not_active Expired
- 1972-08-09 ES ES405700A patent/ES405700A1/en not_active Expired
- 1972-08-09 FR FR7228740A patent/FR2148567B1/fr not_active Expired
- 1972-08-09 GB GB3724072A patent/GB1356726A/en not_active Expired
- 1972-08-10 DE DE19722239423 patent/DE2239423C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA968278A (en) | 1975-05-27 |
| DE2239423C3 (en) | 1980-10-23 |
| DE2239423B2 (en) | 1980-02-28 |
| ES405700A1 (en) | 1975-09-01 |
| FR2148567B1 (en) | 1978-02-10 |
| FR2148567A1 (en) | 1973-03-23 |
| DE2239423A1 (en) | 1973-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1350218A (en) | Hydrocarbon separation process | |
| ES395180A1 (en) | Aromatic hydrocarbon separation by adsorption | |
| GB1375316A (en) | ||
| GB1338752A (en) | Separation process of components of feed mixture utilizing solid sorbent | |
| AU459330B2 (en) | Paraxylene recovery with zeolite adsorbent | |
| CA2001645A1 (en) | Adsorptive separation of para-xylene using a tetralin desorbent | |
| GB1420796A (en) | Separation of aromatic isomers | |
| ES8205570A1 (en) | Process for the separation of three components from a mixture by solid-bed adsorption and desorption. | |
| GB1398754A (en) | Process for the production and recovery of orth-xylene para-xylene and ethylbenzene | |
| GB1236369A (en) | Hydrocarbon separation process | |
| GB1509586A (en) | Process for the separation of 1,3-butadiene by selective adsorption on a zeolite adsorbent | |
| GB1325050A (en) | Process for the production of a selected aromatic hydrocarbon | |
| GB1356726A (en) | P-and m-cymene separation | |
| GB1354716A (en) | Process for the production and recovery of ortho-xylene para- xylene and ethylbenzene | |
| CA1008399A (en) | Process for separating high purity aromatic hydrocarbons from mixtures containing same | |
| CA885018A (en) | Selective separation of aromatic hydrocarbons by adsorption | |
| JPS55111423A (en) | Separation of cyclohexene | |
| ZM18273A1 (en) | Process for separating a high purity vinyl aromatic hydrocarbon mixtures containing the same | |
| FR2067445A5 (en) | Aromatic c8 isomers sepd by crystalline aluminosilicate - absorbers | |
| CA992056A (en) | Process for preparation of improved novel k-a type zeolite and method for separation by adsorption of mixtures using the same | |
| JPS5287122A (en) | Separation by adsorption and desorption | |
| AU485387B2 (en) | Process for separating high purity aromatic hydrocarbons from mixtures containing them | |
| JPS5470229A (en) | Separation of 8c aromatic hydrocarbons | |
| JPS55124725A (en) | Novel process for separating c6-cyclic hydrocarbon by adsorption | |
| FR2157086A5 (en) | Ortho and para-xylene and ethylbenzene prodn and recovery - - by a dual adsorption and isomerisation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |