简介:Thisarticlereferstotheresultsofsmall-scaleandcommercialtestsonhigh-temperaturecrackingofC4fractioninFCCunittoincreasethepropyleneyield.ThebenchtestsrevealedthattheconversionrateofC4fractionduringhigh-temperaturecrackingreached37.38%andpropyleneyieldwasequalto15.60%withtheconversionrateofC4olefinsequatingaround50%.Theresultsofcommercialapplicationshowedthatadoptionofthetechnologyforhigh-temperaturecrackingofC4fractioninFCCunithadledtoanincreaseofpropyleneyieldby2.16%withnoremarkablechangesintheyieldsandpropertiesofotherproducts.
简介:探讨了N-取代-4-氨基邻苯二甲酰亚胺的合成方法,以4-硝基邻苯二甲酰亚胺为起始原料,碳酸钾为缚酸剂,与6种卤代试剂在DMF中发生N-取代反应,生成相应的N-取代硝基物.硝基物经氯化亚锡在盐酸体系中还原,得到6种N-取代-4-氨基邻苯二甲酰亚胺.