公开(公告)号：US20140161718A1

公开(公告)日：2014-06-12

申请号：US13709137

申请日：2012-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： GONGSHIN QI ,  WEI LI ,  XIANGJU MENG ,  FENGSHOU XIAO

IPC: B01J29/85

CPC classification number: B01J29/85 ,  B01D53/9418 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2258/012 ,  B01J35/002 ,  B01J2229/183 ,  C01B39/54 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A Cu-amine complex of hydrated copper sulfate and ethylene diamine or an oligomer of ethylene diamine is employed in a direct (one-pot) synthesis of a copper-cation containing silicoaluminophosphate (SAPO) zeolite material having the Cu/SAPO-34 structure. The copper-amine complex is included in an aqueous gel of precursors of the SiO2, Al2O3, and P2O5 constituents, which are mixed, aged, and thermally treated to form the desired Cu/SAPO-34 structure. The synthesized Cu/SAPO-34 material is demonstrated to be an effective catalyst material in conversion of nitric oxide to nitrogen (using ammonia as a reductant) in synthetic exhaust streams characteristic of diesel engine and other lean-burn vehicle engine exhaust streams.

Abstract translation: 在具有Cu / SAPO-34结构的含铜阳离子的硅铝磷酸盐（SAPO）沸石材料的直接（一锅）合成中，使用水合硫酸铜和乙二胺或乙二胺的低聚物的Cu-胺络合物。 铜 - 胺络合物包含在SiO 2，Al 2 O 3和P 2 O 5组分的前体的水性凝胶中，其被混合，老化和热处理以形成所需的Cu / SAPO-34结构。 合成的Cu / SAPO-34材料被证明是在柴油发动机和其他贫燃汽车发动机排气流特征的合成排气流中将一氧化氮转化为氮气（使用氨作为还原剂）的有效催化剂材料。