Cumene


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Related to Cumene: cumene hydroperoxide

cumene

[′kyü‚mēn]
(organic chemistry)
C6H5CH(CH3)2 A colorless, oily benzenoid hydrocarbon cooling at 152.4°C; used as an additive for high-octane motor fuel.

Cumene

 

(also isopropylbenzene), C6H5CH(CH3)2, a colorless liquid with a pleasant odor. Melting point, —96.03°C; boiling point, 152.39°C; density, 0.8618 g/cm3 (at 20°C); and refractive index, nD20, 1.4913.

Cumene is readily soluble in organic solvents and poorly soluble in water. It forms explosive vapor-air mixtures (flash point, 38°C). Internal introduction of cumene leads to acute and chronic damage of the hematopoietic organs. Cumene is obtained by vapor-phase (in the presence of phosphoric acid) or liquid-phase (in the presence of AlCl3) alkylation of benzene by propylene. Cumene is used as a solvent and a high-octane additive to aviation gasolines; it is also used in the production of phenol and acetone.

References in periodicals archive ?
0% of the total demand in 2012, and also for most of its derivatives that include ethylbenzene, cyclohexane, cumene, nitrobenzene, and alkylbenzene.
Detailed information of all active plants and planned Cumene projects in France with capacity forecasts to 2019 and additional details such as process, technology, operator and equity
Cumene is mainly used to manufacture phenol and acetone, and is therefore also a precursor for bisphenol A, phenolic resins, caprolactam, and methyl methacrylate.
Cumene is a precursor to the production of phenol and bisphenol A and polycarbonate, and nearly ten million annual tonnes of cumene capacity have been licensed by Badger and its predecessor companies since the technology was introduced in 1995.
The plant is to utilise UOP C3 Oleflex process technology to convert propane to propylene, a substance used in the production of materials including films and packaging, and the UOP Q-Max and UOP Phenol process technologies will be integrated to convert cumene to phenol, a building block for materials like plastic and nylon.
45m t/y, as well as propylene and ethylene derivatives plants; a world-scale reformer, and xylene, benzene, cumene, phenol and derivatives units.
has patented a floor finish stripper or scrub and recoat composition that contains sparingly water-soluble floor finish solvent; water; nonethoxylated coupler consisting of toluene, xylene, or cumene sulfonic acid or mixtures thereof in an amount sufficient to provide a homogenous aqueous liquid phase and no or low foaming during shaking; and an acid:amine molar equivalent ratio of 0.
CMAI), Houston, has completrd the 2010 World Cumene/Phenol & Acetone Analysis, an annual global study that covers past and future developments of supply, demand, production, capacity, trade, pricing and profitability of the global Cumene, Phenol and Acetone industry for the period 2004 to 2014.
They begin by describing the fundamentals of integrated process design, then get into specifics by describing case studies relating to process synthesis using the hierarchical approach, synthesis of separator systems, reactor/separation/recycling systems, phenol hydrogenation to cyclohexone, alkylation of benzene by propylene to cumene, vinyl chloride monomer processing, fatty-ester synthesis by catalytic distillation, isobutane alkylation, vinyl acetate monomer processing, acrylonitrile by propene ammoxidation, biochemical processes for nitrogen oxide removal, polyvinylchloride manufacturing by suspension polymerization, biodiesel and bioethanol manufacturing.
In recent years, the world's cumene production capacity has increased significantly.
The project comprises a naphtha cracker, downstream propylene and ethylene derivatives, a reformer, xylene, benzene, cumene, phenol and deriv-atives units.
Alkyl hydroperoxides include cumene hydroperoxide and t-butyl hydroperoxides.