• ethylbenzene
  • The reaction zone is operated at temperature and pressure conditions to cause gas phase ethylation of the benzene with the production of an alkylation product comprising a mixture of ethylbenzene and polyalkylated aromatic components including diethylbenzene. (google.com.au)
  • The output from the first alkylation reaction zone is supplied, at least in part, to a second alkylation zone which is operated in the liquid phase or in the supercritical region followed by supply to an intermediate recovery zone for the separation and recovery of ethylbenzene and a polyalkylated aromatic compound component including diethylbenzene. (google.com.au)
  • methyl group
  • Silicotungstic acid is used to manufacture ethyl acetate by the alkylation of acetic acid by ethylene: C2H4 + CH3CO2H → CH3CO2C2H5 It has also been commercialized for the oxidation of ethylene to acetic acid: C2H4 + O2 → CH3CO2H Methylation is the most common type of alkylation, being associated with the transfer of a methyl group. (wikipedia.org)
  • Methylation is a form of alkylation, with a methyl group, rather than a larger carbon chain, replacing a hydrogen atom. (wikipedia.org)
  • nucleophilic
  • R4} _{{quaternay \atop ammonium} \atop cation}+\underbrace {X^{-}} _{halide \atop anion}} _{quaternay\ ammonium\ salt}}}} Amines and ammonia are generally sufficiently nucleophilic to undergo direct alkylation, often under mild conditions. (wikipedia.org)
  • petrochemical
  • DuPont Clean Technologies (DuPont) is pleased to announce that Hengli Petrochemical Company (Hengli), based in Dalian, China, has awarded DuPont a contract to supply the alkylation and spent acid regeneration (SAR) technologies for the new, grassroots refinery in the Changxing Island Harbor Industrial Zone. (prweb.com)
  • CB&I has been awarded a contract by Shandong Wonfull Petrochemical to provide the license and processing engineering design for asolid acid alkylation unit in China, officials said on Tuesday. (hydrocarbonprocessing.com)
  • salts
  • N-alkylation is a general and useful route to quaternary ammonium salts from tertiary amines, because overalkylation is not possible. (wikipedia.org)
  • DuPont
  • DuPont is the world leader in alkylation technology with over 90 units licensed and with more than 800,000 BPSD (31,400 kmta) of installed capacity. (prweb.com)
  • catalytic
  • This project will develop a novel reactor approach to solid-catalyzed isobutene/olefin alkylation in which olefin polymerization at the catalytic surface is limited, thereby avoiding the primary issue with solid catalyzed alkylation. (sbir.gov)
  • unit
  • In Claim 1 of the second auxiliary request the passage 'b) passing said hydroisomerate stream (26) to an alkylation unit (24)' in Claim 1 was amended to read 'b) passing said hydroisomerate stream (26) directly to an alkylation unit (24)' (emphasis added), as compared to Claim 1 of the main request. (epo.org)
  • CB&I is excited to be working on the first-ever commercialization of a solid-acid alkylation unit in the world," said Daniel McCarthy, president of CB&I's technology operating group. (hydrocarbonprocessing.com)
  • intermediates
  • There are also two available orientations for the chelating nitrogen and R2 group, being either EC=C or ZC=C. This leads to four possible azaenolate intermediates (A, B, C and D) for the Enders' SAMP/RAMP hydrazone alkylation reaction. (wikipedia.org)
  • capacity
  • On the 1st January 2016 according to the Oil & Gas Journal the worldwide installed alkylation capacity was 2,056,035 barrels per day. (wikipedia.org)
  • Indeed, in 1996 around 60% of the installed capacity was based on HF, but since then this ratio has been reducing because during the last decade on 10 new alkylation units commissioned, more than 8 of them were SAAU. (wikipedia.org)
  • synthesis
  • Therefore, for laboratory purposes, N-alkylation is often limited to the synthesis of tertiary amines. (wikipedia.org)
  • The Enders SAMP/RAMP hydrazone alkylation begins with the synthesis of the hydrazone from a N,N-dialkylhydrazine and a ketone or aldehyde The hydrazone is then deprotonated on the α-carbon position by a strong base, such as lithium diisopropylamide (LDA), leading to the formation of a resonance stabilized anion - an azaenolate. (wikipedia.org)
  • product
  • The feasibility of distilling alkylation product and technical alkyl phenol in a continuous apparatus was established. (dtic.mil)
  • The conditions for distilling the alkylation product and technical alkyl phenol was determined. (dtic.mil)
  • In the alkylation of acetonitrile, for instance, yields of monoalkylated product are low in most cases. (wikipedia.org)