GB1195988A - Production of Unsubstituted Aromatics of High Purity. - Google Patents

Production of Unsubstituted Aromatics of High Purity.

Info

Publication number
GB1195988A
GB1195988A GB5260667A GB5260667A GB1195988A GB 1195988 A GB1195988 A GB 1195988A GB 5260667 A GB5260667 A GB 5260667A GB 5260667 A GB5260667 A GB 5260667A GB 1195988 A GB1195988 A GB 1195988A
Authority
GB
United Kingdom
Prior art keywords
hydrodealkylation
catalyst
sulphide
nov
oxide
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
Application number
GB5260667A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1195988A publication Critical patent/GB1195988A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
    • C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
    • C10G65/12—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
    • C07C4/12—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene
    • C07C4/14—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene splitting taking place at an aromatic-aliphatic bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/24—Chromium, molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/04—Sulfides
    • C07C2527/043—Sulfides with iron group metals or platinum group metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/04—Sulfides
    • C07C2527/047—Sulfides with chromium, molybdenum, tungsten or polonium

Abstract

1,195,988. Hydrodealkylation. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 Nov., 1967 [21 Nov., 1966], No. 52606/67. Heading C5E. In a process for hydrodealkylation of alkylaromatics, particularly toluene, at elevated temperature and pressure, the reaction product is hydrorefined without previous separation into gas and liquid phases, said hydrorefining being conducted under the dealkylation pressure, at a temperature of 50-350‹ C., a space velocity of 2-10 kg/litre of catalyst/hour, and over a catalyst comprising at least one metal of Group VI or VIII and/or an oxide and/or sulphide thereof, separated gaseous products and at least part of unreacted constituents and products of secondary reactions being recycled to the dealkylation after separation of required product. The hydrorefining catalyst is suitable as an oxide and/or sulphide of cobalt and/or molybdenum, suitably supported on alumina. The hydrodealkylation is suitably catalytic, e.g. over Cr 2 O 3 [K 2 0/A1 2 0 3 , at 570‹ C. rising to 630‹ C. The dealkylated product has lower bromine and H 2 50 4 -test numbers, without significant increase in naphthene content, as compared with conventional processes.
GB5260667A 1966-11-21 1967-11-20 Production of Unsubstituted Aromatics of High Purity. Expired GB1195988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0089918 1966-11-21

Publications (1)

Publication Number Publication Date
GB1195988A true GB1195988A (en) 1970-06-24

Family

ID=6985017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5260667A Expired GB1195988A (en) 1966-11-21 1967-11-20 Production of Unsubstituted Aromatics of High Purity.

Country Status (3)

Country Link
AT (1) AT274781B (en)
GB (1) GB1195988A (en)
NL (1) NL6715662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031154A (en) * 1975-09-15 1977-06-21 Atlantic Richfield Company Benzene by hydrogenative dealkylation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031154A (en) * 1975-09-15 1977-06-21 Atlantic Richfield Company Benzene by hydrogenative dealkylation

Also Published As

Publication number Publication date
NL6715662A (en) 1968-05-22
DE1568204A1 (en) 1970-02-12
AT274781B (en) 1969-09-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees