发明名称 DIMETHYLDISULFIDE-BASE COMPOSITE
摘要 FIELD: organic chemistry. SUBSTANCE: invention relates to dimethylsulfide (DMDS)-base composite. DMDS is used as the parent addition in vapor- -phase cracking and in the sulfonation reaction of catalysts. To improve product odor caused by the presence of impurities the invention proposes DMDS-base composite comprising at least 95% of DMDS, less 500 mln. p. p. of methylmercaptane, less 100 mln. p. p. of dimethylsulfide and up to 1% of at least one perfume that represents ester of the general formula R1-CO2R2 wherein R1 represents possibly unsaturated, linear or branched hydrocarbon radical comprising from 1 to 4 carbon atoms; R2 represents possibly unsaturated, linear, branched or cyclic hydrocarbon radical comprising from 2 to 8 carbon atoms. EFFECT: improved and valuable properties of composite. 8 cl, 2 dwg, 1 tbl, 11 ex
申请公布号 RU2219168(C2) 申请公布日期 2003.12.20
申请号 RU19990116306 申请日期 1999.07.28
申请人 发明人 FREMI ZHORZH
分类号 C07C319/24;C07C319/26;C07C321/14;(IPC1-7):C07C321/14 主分类号 C07C319/24
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