IT961241B - Procedimento per separare para xilolo meta xilolo ed orto xilolo da una miscela di composti aroma tici - Google Patents
Procedimento per separare para xilolo meta xilolo ed orto xilolo da una miscela di composti aroma ticiInfo
- Publication number
- IT961241B IT961241B IT26184/72A IT2618472A IT961241B IT 961241 B IT961241 B IT 961241B IT 26184/72 A IT26184/72 A IT 26184/72A IT 2618472 A IT2618472 A IT 2618472A IT 961241 B IT961241 B IT 961241B
- Authority
- IT
- Italy
- Prior art keywords
- xylol
- garden
- meta
- procedure
- mixture
- Prior art date
Links
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 title 3
- 150000001491 aromatic compounds Chemical class 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
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
-
- 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
- C07C5/2702—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
- C07C5/2708—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- C07C5/2737—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- C07C5/2767—Changing the number of side-chains
- C07C5/277—Catalytic processes
- C07C5/2775—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15675771A | 1971-06-25 | 1971-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT961241B true IT961241B (it) | 1973-12-10 |
Family
ID=22560952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT26184/72A IT961241B (it) | 1971-06-25 | 1972-06-24 | Procedimento per separare para xilolo meta xilolo ed orto xilolo da una miscela di composti aroma tici |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3770841A (https=) |
| BE (1) | BE785410A (https=) |
| CA (1) | CA964675A (https=) |
| DE (1) | DE2231246A1 (https=) |
| FR (1) | FR2142999B1 (https=) |
| GB (1) | GB1369925A (https=) |
| IT (1) | IT961241B (https=) |
| NL (1) | NL7208717A (https=) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855328A (en) * | 1971-12-14 | 1974-12-17 | Sun Research Development | Isomerization and/or transalkylation and/or disproportionation of alkylnaphthalenes |
| US3894108A (en) * | 1973-08-09 | 1975-07-08 | Exxon Research Engineering Co | High temperature liquid elution chromatography |
| US4039599A (en) * | 1976-08-26 | 1977-08-02 | Uop Inc. | Xylene isomerization process |
| NL7801367A (nl) * | 1978-02-07 | 1979-08-09 | Shell Int Research | Werkwijze voor de bereiding en afscheiding van p-xyleen. |
| US4181811A (en) * | 1978-12-14 | 1980-01-01 | Mobil Oil Corporation | Selective reaction of 1,4-disubstituted aromatic compounds |
| JPH0662456B2 (ja) * | 1987-10-05 | 1994-08-17 | 帝人株式会社 | メタキシレンの製造法 |
| US6489527B1 (en) * | 1992-05-26 | 2002-12-03 | John Di-Yi Ou | Process for improving purity of para-xylene product |
| IT1262941B (it) * | 1992-06-15 | 1996-07-22 | Enichem Spa | Procedimento per la separazione di miscele di idrocarburi c8 aromatici |
| US5516955A (en) * | 1994-03-30 | 1996-05-14 | Glitsch International, Inc. | Catalytic distillation to produce orthoxylene and paraxylene |
| TWI240716B (en) | 2000-07-10 | 2005-10-01 | Bp Corp North America Inc | Pressure swing adsorption process for separating paraxylene and ethylbenzene from mixed C8 aromatics |
| US6627783B2 (en) | 2000-07-10 | 2003-09-30 | Bp Corporation North America Inc. | Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed C8 aromatics |
| US6573418B2 (en) | 2000-07-10 | 2003-06-03 | Bp Corporation North America Inc. | Process for production of para-xylene incorporating pressure swing adsorption and simulated moving bed adsorption |
| US6565653B2 (en) | 2001-05-08 | 2003-05-20 | Bp Corporation North America Inc. | Energy efficient process for producing high purity paraxylene |
| BRPI0117105B1 (pt) | 2001-08-21 | 2016-06-28 | Standard Oil Co | acrilonitrila, metacrilonitrila ou ácido cianídrico e respectivos processos de recuperação |
| US9809509B2 (en) * | 2015-12-15 | 2017-11-07 | Exxonmobil Chemical Patents Inc. | Process for xylenes isomerization |
| CN120004366B (zh) * | 2025-04-18 | 2025-07-25 | 浙江九安检测科技有限公司 | 一种二噁英前处理过程中有机试剂的回收方法 |
-
1971
- 1971-06-25 US US00156757A patent/US3770841A/en not_active Expired - Lifetime
-
1972
- 1972-05-05 CA CA141,400A patent/CA964675A/en not_active Expired
- 1972-05-08 GB GB2136272A patent/GB1369925A/en not_active Expired
- 1972-06-14 FR FR7221338A patent/FR2142999B1/fr not_active Expired
- 1972-06-23 NL NL7208717A patent/NL7208717A/xx unknown
- 1972-06-23 BE BE785410A patent/BE785410A/xx unknown
- 1972-06-24 IT IT26184/72A patent/IT961241B/it active
- 1972-06-26 DE DE2231246A patent/DE2231246A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7208717A (https=) | 1972-12-28 |
| FR2142999B1 (https=) | 1977-04-01 |
| DE2231246A1 (de) | 1973-01-11 |
| BE785410A (fr) | 1972-12-27 |
| GB1369925A (en) | 1974-10-09 |
| CA964675A (en) | 1975-03-18 |
| FR2142999A1 (https=) | 1973-02-02 |
| US3770841A (en) | 1973-11-06 |
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