在丙烯腈水合制备丙烯酰胺的反应中,采用共沉淀方法制备催化剂,通过反应考察了催化剂的催化活性,并用XRD和TPR对水合用铜基催化剂做了物相表征.结果表明,采用碱单流加料,Cu/Al为40/60时,反应转化率最高可达90.9%,选择性最高可达99.1%.XRD和TPR测定表明,催化剂的催化活性与孔雀石和水滑石晶相的粒度、两者的比例密切相关.两者粒度小,比例恰当,催化剂活性高.
参考文献
| [1] | Mark Donal Ryan;John Bradley Roucis;James Donakl Carruthers .Stable highly active supported copper based catalysts[P].US 0040161,2002. |
| [2] | Bexuidenhout, Barend Christiaan Buurman, Denga, Zamile, Steyn, Rian, Steynberg, Petrus Johannes, Stark, Nicolaus Ladislaus[J].Production of amides and/or acids from nitriles US 6,2000,100:427. |
| [3] | Honda Tadatoshi;Ohe Hiroshi;Ichikawa Shinichiro;Kuboyama,Hisaharu,Miyazoe,Satoru .Copper catalyst for the hydration of nitrile and preparation thereof[P].US 5, 817,872,1998. |
| [4] | Toshio Okuhara;Xin Chen .Ritter-type reactions catalyzed by high-silica MFI zeolites[J].Microporous and Mesoporous Materials,2001(1/3):293-299. |
| [5] | Talit Ghaffar;Adrian W.Parkins The catalytic hydration of nitriles to amids using a homogeneous platinum phosphinito catalyst[J].Journal of Molecular Catalysis A:Chemical,2000(160):249-261. |
| [6] | Andrea Biffis;Benedetto Coraln;Zuzana Cvengrosova.Relationships between physico-chemical properties and catalytic activity of polymer-supported palladium catalysts. Part Ⅰ.Experimental investigations[J].Applied Catalysis A:General,1995(124):355-365. |
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