Ethylbenzene (EB) CAS No: 100-14-4

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Ethylbenzene is used in styrene-based polymers (source: BASF)Nearly all the ethylbenzene (EB) produced is used in the manufacture of styrene monomer (SM) with the remainder, at less than 1%, used in solvent applications. Most of the ethylbenzene is used captively, leaving a small merchant market for the product.

 

Historically, global EB/SM demand has grown at around 4-5%/year and it is expected to continue at a slightly slower 3.5-4%/year. The growth in demand will be in China and supported by new EB/SM capacity in the Middle East and northeast Asia.

 

Nearly all commercial ethylbenzene is produced by alkylation of benzene with ethylene. Processes using zeolite catalysts offer low benzene-to-ethylene ratios, which reduces the size of equipment, and lowers the production of byproducts.

 

Ethylbenzene is a colourless liquid, with a pungent aromatic odour. It is a flammable liquid which is stable under ordinary conditions of use and storage.

Ethylbenzene Price Reports

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Ethylbenzene Uses and Outlook

Nearly all the ethylbenzene (EB) produced is used in the manufacture of styrene monomer (SM) with the remainder, at less than 1%, used in solvent applications. In addition, most of the EB is used captively, leaving a small merchant market for the product. Hence, EB demand runs in parallel to that of styrene.
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Ethylbenzene Process Technologies

Ethylbenzene is produced by the catalytic alkylation of benzene with ethylene, or from mixed xylenes by isomer separation and catalytic isomerisation, or from 1,3-butadiene in a two-step process where the butadiene is converted to vinylcyclohexane which is then dehydrogenated.
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Ethylbenzene Plants and Projects

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Ethylbenzene Synonyms & Abbreviations

  • Ethyl phenylethane
  • Ethylbenzol
  • Etilbenceno
  • Phenylethane
  • EB

Ethylbenzene Properties

Auto-ignition temperature oC
460
Boiling point oC
136
Explosive limits, vol% in air
1.0-6.7
Flash point oC c.c
15
Melting point oC
-95
Molecular weight
106.17
Octanol/water partition coefficient (log Pow)
3.2
Relative density (water = 1)
0.9
Relative vapour density (air = 1)
3.7
Vapour pressure (kPa at 20oC)
0.9
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