Results 201 to 210 of about 165,943,760 (239)

Alkylation of benzene to propyl and isopropyl benzenes over ZSM5 zeolites

Journal of Chemical Technology and Biotechnology. Chemical Technology, 1984
AbstractThe alkylation of benzene with isopropanol over pure and modified (with phosphorous and boron) HZSM5 zeolites is reported. Isopropylbenzene is the primary reaction product. In the presence of strong acid sites, it isomerises to n‐propylbenzenes.
Kalpana H. Chandavar, Sooryakant G. Hegde, Suneeta B. Kulkarni, Paul Ratnasamy   +3 more
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Alkyl Benzene Sulfonate Effects on Stream Algae Communities

Bulletin of Environmental Contamination and Toxicology, 1966
ABS is toxic to fish and other aquatic organisms. It also is toxic at varying concentrations to lower life forms at all trophic levels within the aquatic environment. Algae represents the level of the primary producer. Those forms ranking above it are dependent upon it for their energy supply.
C E, Hicks, J M, Neuhold
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Reduction of benzene in reformate by ethylene alkylation with benzene

Benzene is a key aromatic hydrocarbon which is an important high octane component of motor gasoline; however, benzene is known as a human carcinogen and also has high vapor pressure thus high evaporative emissions. Reformate is the largest portion of benzene in a gasoline pool and, therefore it was aimed to reduce benzene content prior to blending ...
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Process Optimization on Alkylation of Benzene with Propylene

Energy & Fuels, 2009
This work deals with the improvement of the current process of alkylation of benzene (B) with propylene (P) to produce cumene (IPB). Due to high energy consumption brought by high feeding molar ratio of benzene to propylene (B/P), an optimized process design has been developed and is presented.
Zhigang Lei, Chengna Dai, Yuli Wang, Biaohua Chen   +3 more
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Diffusion in n-alkyl benzenes. Diffusion of 1,1,2,2-tetrabromoethane in a homologous series of n-alkyl benzenes

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1980
The dependence of the product D0η0(where D0 is the interdiffusion coefficient at infinite dilution and η0 is the solvent viscosity) on the solvent molar volume Vm has been investigated for 1,1,2,2-tetrabromoethane diffusing in n-alkyl benzenes at 20, 25, 35 and 45°C.The experimental results at 20, 25 and 35°C show that D0η0 is an increasing function of
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Metabolism of linear alkylate sulfonate and alkyl benzene sulfonate in albino rats

Toxicology and Applied Pharmacology, 1968
Abstract The metabolism of linear alkylate sulfonate (LAS) and alkyl benzene sulfonate (ABS) was studied in rats. Both compounds were found to be absorbed readily from the gastrointestinal tract. LAS and its metabolites were excreted primarily in the urine while ABS and its metabolites were excreted primarily into the feces by way of the bile.
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Upgrading of linear alkyl benzene by‐product

Journal of Chemical Technology & Biotechnology, 1990
AbstractHeavy alkylated benzene, which is accumulated as a by‐product from linear alkyl benzene synthesis, was evaluated as a starting material for anionic liquid sulphonate surfactants.Chemical structure analysis by GC/MS showed that the by‐product contains eight different paraffinic side‐chains, within the carbon range C12–C15.
Abdel Azim M. Wedad, H. H. El Abou Naga, Sidaros K. Naguib   +2 more
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Alkylation of Benzene and Toluene

Industrial & Engineering Chemistry, 1960
R. A. Sanford, S. M. Kovach, B. S. Friedman   +2 more
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ChemInform Abstract: ALKYLATION OF BENZENE WITH ISOPARAFFIN‐ALKYL CHLORIDE MIXTURES

Chemischer Informationsdienst, 1976
AbstractDie Alkylierung von Benzol mit tert.‐Butyl‐, Isopropyl‐, Neopentyl‐ oder Benzylchlorid und den Isoparaffinen Isopentan, 3‐Methylhexan, Methylcyclohexan oder Methylcyclopentan in Gegenwart von Al‐trichlorid wird untersucht.
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Stereoselective dearomatization of benzene, alkylated benzenes and naphthalenes by dihapto-coordination

2004
A description of methodologies used for the dearomatization of arenes, attractive precursors with valuable potential to form highly-substituted alicyclic and polycyclic compounds if properly activated.
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