发明名称 METHOD FOR PREPARING ETHYL- AND ISOPROPYLBENZENE
摘要 FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to preparing aromatic compounds. Method involves carrying out alkylation reaction of benzene with olefins in the presence of fresh and circulating aluminum chloride-base catalyst complex to obtain alkylate and gaseous benzene evaporated in alkylation and its the following two-step condensation in special heat-exchangers cooled with water and additional treatment noncondensed prebenzene part from passed by benzene with polyalkylbenzene. Unreacted benzene evaporated in alkylating device and containing prebenzene fraction and hydrogen chloride is condensed in mixing condenser, for example, in scrubber dried with direct benzene feeding for alkylation reaction and noncondensed prebenzene fraction is fed to additional treatment from passed by benzene and hydrogen chloride. ^ EFFECT: simplified technological scheme, reduced energy consumption. ^ 3 cl, 2 tbl, 2 dwg, 6 ex
申请公布号 RU2233826(C1) 申请公布日期 2004.08.10
申请号 RU20020132635 申请日期 2002.12.04
申请人 发明人 MARUSHAK G.M.;KOTEL'NIKOV G.R.;KOVALENKO V.V.;ELIN O.L.;SIDNEV V.B.
分类号 C07C2/66;C07C15/00;C07C15/073 主分类号 C07C2/66
代理机构 代理人
主权项
地址