In this study, Na-Y zeolites were modified with ammonium carbonate (AC), citric acid (CA) and caesium nitrate(CN) to evaluate the alkylation of benzene with methanol, which was also characterized by XRD, SEM, FT-IR, N2 adsorption and Py-IR. For the Na-Y treated with AC-CA-CN, not...
The secondary reaction of toluene is difficult to be suppressed in benzene alkylation with methanol over conventional acidic zeolite catalysts. Moreover, the formation of coke yet remains a challenging problem. In this study, Na-Y zeolites were modified with ammonium carbonate (AC), citric acid (...
5 moles) of concentrated hydrochloric acid (sp. gr. 1.18). The stirrer is started, and a solution of 109 g. (1.5 moles) of 95 per cent sodium nitrite in 250 cc. of water is added over a period of fifteen minutes. The reaction mixture is then stirred for fifteen minutes, and a...
from the contact between aromatic hydrocarbons, such as Dodecylbenzene , and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction....
The relationship between the first ionization potential I p of substituted benzene and the orientation rule of substituted group in N 2 O 4 O 3 nitration aromatics is discussed by frontier orbital theory and reaction mechanism of N 2 O 4 O 3 nitration aromatic. The NO 2 entering position in...
reaction conditions to produce a product containing said para-alkylated aromatic compound, said catalyst comprising a selectivated H-ZSM-5 molecular sieve and at least one hydrogenation metal selected from the group consisting of Rh, Pt and mixtures thereof, wherein said molecular sieve is selectiva...
Thereaction between aromatics containing multinitro groups and aldehydes or ketones with an activated α-proton in the presence of a strong base to form coloring molecules, for detection of both carbonyl compounds and nitroaromatics is generally referred to as the Janovsky reaction and the product fo...
and energy source and nitrate as the electron acceptor. Using genome-centric metagenomics plus metatranscriptomics, we demonstrate that most of the community members likely feed on metabolic left-overs or on necromass while only a few of them, from familiesRhodocyclaceaeandPeptococcaceae, are ...
19. The process of claim 10, wherein the alkylatable aromatic compound is benzene, and wherein the molar ratio of benzene to olefin in the reaction mode is from 1 to 30. 20. The process of claim 10, wherein the alkylatable aromatic compound is selected from the group consisting of ...
Reaction of refluxing aqueous HC(SO2CF3)3 with scandium oxide yields the triflide salt [Sc(OH2)7](C(SO2CF3)3)3. The crystal structure, though complicated by disorder, was solved to an R value of 0.095 and revealed51 two scandium-containing sites, with coordination geometries described as...