Ethylbenzene → Ethylbenzene

HRID 568825Notes

Reaction equation

HRID 568825 reaction equation
[CH2:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1)[CH3:2].[CH2:9]([C:11]1[CH:16]=[CH:15][C:14](C)=[CH:13][CH:12]=1)[CH3:10]>B([O-])([O-])[O-].[Al+3].[Cu+2]>[CH2:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1)[CH3:2].[CH2:10]=[CH:9][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

Participants

5

Reactant 2

HCID 7500Ethylbenzene2×HCID 121601-Ethyl-4-Methylbenzene

Product 2

HCID 7500EthylbenzeneHCID 7501Styrene

Reagents, catalysts & solvents 1

HCID 86742028HCID 86742028, compoundCatalyst

Procedure

The doped copper aluminum borate catalyst prepared in the preceding paragraph was ground to 18 to 40 mesh and used in the dehydrogenation of ethylbenzene and p-ethyltoluene in the manner described in Example I. The ethylbenzene runs were carried out at a 0.9 liquid hour space velocity, 620° C. temperature, steam:ethylbenzene molar ratio of 20:1, yielding 42% conversion and 72% selectivity to styrene. The p-ethyltoluene conversion to p-methylstyrene was carried out using a 0.2 liquid hour space velocity, 620° C. temperature, 15:1 molar ratio of steam to p-ethyltoluene, a 5:1 toluene to p-ethyltoluene dilution, yielding 68% conversion and 93% selectivity to p-methylstyrene.

Workup

  1. customwere carried out at a 0.9 liquid hour space velocity, 620° C. temperature, steam

Sources & evidence

ORD record
ord-f3d9467788b64021a99e579181e4dbec
Source dataset
uspto-grants-1988_03
Patent number
US04729979

Reaction notes

Loading…