Apparatus for manufacture of low-soda alumina granules
    3.
    发明授权
    Apparatus for manufacture of low-soda alumina granules 失效
    低苏打氧化铝颗粒的制造装置

    公开(公告)号:US4260585A

    公开(公告)日:1981-04-07

    申请号:US878399

    申请日:1978-02-16

    CPC分类号: C01F7/441 C01P2004/50

    摘要: Low-soda alumina granules suitable for use as an alumina porcelain insulator and alumina catalyst carrier, and the method and equipment for their manufacture. The method comprises dehydrating aluminum hydroxide at a high temperature and then granulating it. The granules thus obtained are placed in an autoclave, washed and cured with water drops, then taken out of the autoclave dried and fired. The manufacturing equipment is used for curing the granules with water drops.

    摘要翻译: 适用于氧化铝瓷绝缘子和氧化铝催化剂载体的低苏打氧化铝颗粒及其制造方法和设备。 该方法包括在高温下将氢氧化铝脱水,然后造粒。 将如此获得的颗粒置于高压釜中,用水滴洗涤和固化,然后从高压釜中取出干燥并烧制。 制造设备用于用水滴固化颗粒。

    Method of manufacturing catalyst type exhaust gas purifier
    4.
    发明授权
    Method of manufacturing catalyst type exhaust gas purifier 失效
    催化剂型排气净化器的制造方法

    公开(公告)号:US3938232A

    公开(公告)日:1976-02-17

    申请号:US463583

    申请日:1974-04-24

    IPC分类号: F01N3/28 B21D53/00

    摘要: Method of manufacturing a catalyst type exhaust gas purifier utilizing a divisible vessel to hold an integrated catalyst, while a packing is inserted at the junction between the divisible parts. The space between the vessel and the catalyst is filled with a castable refractory material, which is then solidified, after which the packing is removed and then the parts of the vessel are drawn together at said junction.

    摘要翻译: 制造使用可分割容器保持一体化催化剂的催化剂型排气净化器的方法,同时将填料插入在可分割部分之间的连接处。 容器和催化剂之间的空间填充有可浇铸的耐火材料,然后将其固化,然后除去填料,然后将容器的部分在所述连接处拉到一起。

    Catalyst for purifying exhaust gas
    6.
    发明授权
    Catalyst for purifying exhaust gas 失效
    废气净化催化剂

    公开(公告)号:US5906959A

    公开(公告)日:1999-05-25

    申请号:US684482

    申请日:1996-07-19

    摘要: This invention relates to a catalyst for purifying an exhaust gas using a complex oxide having good heat-resistant and a purification performance which does not undergo degradation, particularly in a lean atmosphere at a high temperature of about 1,000.degree. C., by using the complex oxide containing platinum and at least one member of element selected from the group from an alkaline earth metal element and the Group IIIA element and, furthermore, by using at least one member of platinum complex oxides selected from the group of those Pt complex oxides expressed by the chemical structural formulas X.sub.4 PtO.sub.6 (X=Ca, Sr, Ba, Mg), X'.sub.2 Pt.sub.2 O.sub.7 (X'=Sc, La, Pr), SrX"PtO.sub.6 (X"=Co, Ni, Cu), Ba.sub.2 ZPtO.sub.6 (Z=Pr, Ce) and Ba.sub.8 Y.sub.3 Pt.sub.4 O.sub.17.5.

    摘要翻译: 本发明涉及一种使用复合氧化物净化废气的催化剂,该催化剂具有良好的耐热性和不经历劣化的净化性能,特别是在高温约1000℃的贫气氛中,通过使用该络合物 含有铂的氧化物和选自碱土金属元素和IIIA族元素的元素中的至少一种元素,此外,通过使用选自Pt络合物氧化物中的至少一种铂络合物氧化物,由Pt复合氧化物 化学结构式X4PtO6(X = Ca,Sr,Ba,Mg),X'2Pt2O7(X'= Sc,La,Pr),SrX''PtO6(X“= Co,Ni,Cu),Ba2ZPtO6 = Pr,Ce)和Ba8Y3Pt4O17.5。

    Method of forming shaped body from fine particles with carrier fluid
under pressure gradient
    7.
    发明授权
    Method of forming shaped body from fine particles with carrier fluid under pressure gradient 失效
    在压力梯度下用载体流体从细颗粒形成成形体的方法

    公开(公告)号:US5215697A

    公开(公告)日:1993-06-01

    申请号:US849207

    申请日:1992-03-11

    IPC分类号: B22F3/00 B28B13/02

    CPC分类号: B28B13/021 B22F3/004

    摘要: A shaped body is formed from fine particles such as powder, whiskers or short fibers of ceramics or metal, by preparing a mold having a mold chamber, an inlet port open to the mold chamber at its first portion and adapted to introduce a mixture of the fine particles and a carrier fluid into the mold chamber, and an outlet port open to the mold chamber at its second portion substantially opposite to the first portion and adapted to exhaust substantially only the carrier fluid in a gaseous state out of the mold chamber; preparing the mixture of the fine particles and the carrier fluid; and supplying the mixture under a pressure elevated substantially above atmospheric pressure into the mold chamber through the inlet port while exhausting the carrier fluid out of the mold chamber through the outlet port.

    摘要翻译: 成形体由陶瓷或金属的粉末,晶须或短纤维等微细颗粒形成,通过制备具有模具室的模具,在其第一部分向模具室开口的入口端口,并适于引入 细颗粒和载体流体进入模具室,以及出口端口,其在其第二部分处与模具室相通,基本上与第一部分相对,并且适于仅将气态的载体流体从模腔中排出; 制备细颗粒和载体流体的混合物; 并且在通过所述入口端口将所述混合物在基本上高于大气压力的压力下供给到所述模具室中,同时通过所述出口将所述载体流体排出所述模具室。

    High heat-resistant catalyst with a porous ceria support
    9.
    发明授权
    High heat-resistant catalyst with a porous ceria support 失效
    具有多孔二氧化铈载体的高耐热催化剂

    公开(公告)号:US5972830A

    公开(公告)日:1999-10-26

    申请号:US570611

    申请日:1995-12-11

    摘要: This catalyst support aims to improve heat resistant and durability by highly dispersing an NO.sub.x storage component. This catalyst support is produced by mixing a solution of a chemical compound including at least one element of alkali metals, alkaline-earth metals, and rare-earth elements with a solution of oxide sol of at least one metal of group IIIb, group IVa, and group IVb in the periodic table to prepare a mixed sol solution, forming the mixed sol solution into gel, and drying and calcining the gel. The obtained catalyst support is amorphous and attains a high specific surface area even when calcined at elevated temperatures, so that the catalyst support is superior in heat resistance.

    摘要翻译: 该催化剂载体旨在通过高度分散NO x储存组分来改善耐热性和耐久性。 该催化剂载体通过将包含至少一种碱金属,碱土金属和稀土元素的化合物的溶液与IIIb族,Ⅳa族,Ⅳa族至少一种金属的氧化物溶液的溶液混合来制备, 和周期表IVb组,制备混合溶胶溶液,将混合溶胶溶液形成凝胶,干燥和煅烧凝胶。 所获得的催化剂载体是无定形的,并且即使在升高的温度下煅烧也获得高比表面积,使得催化剂载体的耐热性优异。