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低温低压液相合成甲醇和甲酸甲酯用超细铜铬氧化物催化剂 Ⅱ.Mn含量对催化剂的MF选择性的影响 被引量:2

INVESTIGATION ON ULTRAFINE Cu-Cr OXIDE CATALYSTS FOR SYNTHESIS OF METHANOL AND METHYL FORMATE AT LOW PRESSURE AND TEMPERATURE IN LIQUID PHASE II.Effect of Mn Contents on the MF Selectivity of Catalysts
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摘要 采用络合物沉淀法和共沉淀法制备了CuCr1-xMnxO(x =0 ,0 .5 ,1)催化剂 ,并考察了其对合成甲醇和甲酸甲酯 (MF)反应的催化活性和MF选择性 ,重点考察了Mn掺杂对MF选择性的影响。采用XRD、BET、SEM和TEM对催化剂进行了表征。结果表明 ,催化剂的MF选择性随Mn掺杂量的增加而提高。当Mn完全取代Cr后 ,催化剂的MF选择性甚至可高达 10 0 %,这可能主要归因于催化剂中含Mn新物相的形成和催化剂呈高分散的纳米形态。 The CuCr (1-x)Mn xO(x=0,0.5,1.0)catalysts were prepared with complex precipitation and coprecipitation methods respectively,and characterized by XRD,BET,SEM and TEM techniques.The activity and selectivity of methyl formate(MF) of CuCr (1-x)Mn xO(x=0,0.5,1.0)catalysts for the concurrent synthesis of methanol and methyl formate from synthesis gas were investigated.Especially the effects of Mn adulteration on the MF selectivity of catalysts were emphatically examined.The results demonstrated that the selectivity of MF was increased with the increase of Mn contents.When Cr was completely substituted by Mn,the MF selectivity of corresponding catalyst can even reach 100%,which can be mainly attributed to the formation of Mn-contained new phase and the nano morphology as well as high dispersion of catalysts.
出处 《化工科技》 CAS 2002年第4期1-5,共5页 Science & Technology in Chemical Industry
基金 国家科技部资助项目 (85 - 95H - 0 6 - 0 8)
关键词 低温低压液相合成 甲醇 甲酸甲酯 铜铬氧化物催化剂 MF选择性 合成气 纳米催化剂 含量 掺杂 Syngas Methanol Methyl formate Nano-catalyst Cu,Cr,Mn,Catalyst preparation
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  • 1刘兴泉 吴玉塘.第九届全国催化学术会议论文集[M].北京:海潮出版社,1998.800.
  • 2刘兴泉 吴玉塘.-[J].功能材料,1998,29:1194-1194.
  • 3吴玉塘,中国发明专利申请号:97/107662 .6,1997年
  • 4吴玉塘,CN 1136979A,1996年
  • 5吴玉塘,CN1137032A,1996年
  • 6Liu Z,Fuel Processing Technology,1989年,23卷,2期,149页
  • 7Yang Y C,J Nat Gas Chem,1998年,7卷,2期,134页
  • 8Liu X Q,Stud Surf Sci Catal,1998年,119期,557页
  • 9刘兴泉,功能材料,1998年,29卷,增刊,1194页
  • 10刘兴泉,第九届全国催化学术会议论文集,1998年,800页

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