Hydrodealkylation of alkylaromatic hydrocarbons

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By dealkylation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

585485, 585486, 585488, C07C 412

Patent

active

042477301

ABSTRACT:
A process for hydrodealkylating alkyl-substituted aromatic hydrocarbons, e.g., toluene, by reaction with hydrogen in the absence of water vapor under relatively mild reaction conditions, and a catalyst therefor are disclosed. The process is effected at a temperature of from about 450.degree. to 650.degree. C., preferably from about 520.degree. to 620.degree. C., and pressures of from about 1 to about 30, preferably from about 5 to about 20 bar, and a liquid hourly space velocity of from about 1 to about 10, preferably from about 3 to about 8, in the presence of a catalyst which comprises a noble metal component comprising rhodium and a support comprising a metal aluminate having a spinel structure and corresponding to the empirical formula M Al.sub.2 O.sub.4.X Al.sub.2 O.sub.3, wherein X represents a value of from 0 to about 200 and M represents a metal selected from the group consisting of nickel, cobalt, copper, zinc, iron, and magnesium.
Preferably, the support comprises an active alumina bearing a surface layer of said aluminate.

REFERENCES:
patent: 3459657 (1969-08-01), Kronig et al.
patent: 3595932 (1971-07-01), Maslyansky et al.
patent: 3597348 (1971-08-01), Bourne et al.
patent: 3812196 (1974-05-01), Uchiyama et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hydrodealkylation of alkylaromatic hydrocarbons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrodealkylation of alkylaromatic hydrocarbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodealkylation of alkylaromatic hydrocarbons will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1183087

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.