公开(公告)号：US4996180A

公开(公告)日：1991-02-26

申请号：US281406

申请日：1988-12-08

Applicant: Alan F. Diwell ,  Christopher Hallett ,  Graham Ansell ,  John W. Hayes

Inventor： Alan F. Diwell ,  Christopher Hallett ,  Graham Ansell ,  John W. Hayes

IPC: B01D53/94 ,  B01J23/76 ,  B01J23/83

CPC classification number: B01J37/0201 ,  B01D53/945 ,  B01J23/83 ,  B01J37/031 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20761 ,  B01D2255/2092 ,  Y02T10/22

Abstract: Catalysts, particularly for combating air pollution from the exhaust gases of internal combustion engines, consist essentially of an intimate mixture of copper oxide and ceria, the weight of the copper oxide being less than the weight of the ceria.

公开(公告)号：US4478797A

公开(公告)日：1984-10-23

申请号：US422145

申请日：1982-09-23

Applicant: Alan F. Diwell ,  Andrew Salathiel

Inventor： Alan F. Diwell ,  Andrew Salathiel

IPC: B01D53/94 ,  B01J23/40 ,  B01J23/56 ,  B01J23/62 ,  B01J23/64 ,  B01J23/652 ,  B01J23/89 ,  B01J37/02 ,  B01D53/36

CPC classification number: B01J23/8993 ,  B01D53/944 ,  B01J23/56 ,  B01J37/024

Abstract: An oxidation catalyst for use in a catalytic exhaust gas purification unit comprises a substrate on which a refractory metal oxide is coated, a base metal component and one or more metals from the Platinum Group. The catalyst is highly effective when a metallic substrate is employed and the loading of the refractory metal oxide coating is relatively high. The base metal is useful for catalysts having a ceramic substrate and a relatively low coating loading.

Abstract translation: 用于催化废气净化单元的氧化催化剂包括其上涂覆难熔金属氧化物的基材，贱金属组分和来自铂族组的一种或多种金属。 当使用金属基底并且难熔金属氧化物涂层的负载相对较高时，催化剂是非常有效的。 贱金属对于具有陶瓷基底和相对低的涂层负载的催化剂是有用的。

公开(公告)号：US4539311A

公开(公告)日：1985-09-03

申请号：US622550

申请日：1984-06-20

Applicant: Brian Harrison ,  Alan F. Diwell

Inventor： Brian Harrison ,  Alan F. Diwell

IPC: B01D53/86 ,  B01J23/58 ,  B01J37/02 ,  F02B1/04 ,  B01J21/04 ,  B01J23/10 ,  B01J23/78

CPC classification number: B01J37/0205 ,  B01D53/864 ,  B01J23/58 ,  F02B1/04

Abstract: A process for improving the lead tolerance of a motor vehicle exhaust purification catalyst system of the type comprising a platinum group metal catalyst carried on alumina. The improvement derives from impregnating the alumina with barium moiety and firing at at least 400.degree. C. before subsequent impregnation with the metal catalyst moiety.

Abstract translation: 一种用于提高包含负载在氧化铝上的铂族金属催化剂的机动车排气净化催化剂体系的导线耐受性的方法。 改进来自于用钡部分浸渍氧化铝并在至少400℃下烧制，随后用金属催化剂部分浸渍。

公开(公告)号：US4127510A

公开(公告)日：1978-11-28

申请号：US735884

申请日：1976-10-26

Applicant: Brian Harrison ,  Alan F. Diwell

Inventor： Brian Harrison ,  Alan F. Diwell

IPC: B01D53/94 ,  B01J23/40 ,  B01J23/56 ,  B01J23/86 ,  B01J23/89 ,  B01J21/04 ,  B01J23/10 ,  B01J23/58 ,  B01J23/74

CPC classification number: B01D53/945 ,  B01J23/40 ,  B01J23/56 ,  B01J23/89 ,  Y02T10/22

Abstract: This invention relates to catalysts suitable for the purification of exhaust gases. In particular a catalyst according to the invention comprises a compound selected from the group represented by the general formula A.sub.x M.sub.y O.sub.z in which A is one or more metals selected from the group consisting of Li, Na, K, Mg, Ca, Sr, Ba, Al, Sc, Y, the lanthanides, Ti, Zr, V, Cr, Mn, Fe, Co, Ni, Cu, Zn; M is a metal selected from the group consisting of Ir, Rh, Pt, Pd, and Ru; y has an integral or fractional value within the range from 0.1 to 3.0, z is an integer with a value from 2 to 7 and x has a value such that the compound is electrically neutral.

Abstract translation: 本发明涉及适于净化废气的催化剂。 特别地，根据本发明的催化剂包括选自由通式AxMyOz表示的基团的化合物，其中A是选自Li，Na，K，Mg，Ca，Sr，Ba，Al中的一种或多种金属 ，Sc，Y，镧系元素，Ti，Zr，V，Cr，Mn，Fe，Co，Ni，Cu，Zn; M是选自Ir，Rh，Pt，Pd和Ru的金属; y的整数或分数值在0.1至3.0的范围内，z是值为2至7的整数，x具有使化合物电中性的值。