摘要:
A coating formed on a surface of an article, which is heated during use as typified by a cooking device, to accomplish catalytic oxidation decomposition of oil and grease spattered thereon. The coating is fundamentally a porous matrix layer of an inorganic binder having a matte surface and comprises, in the form of uniformly dispersed particles, an oxidation catalyst and a nondiscoloring material, for example a ferrite, which has the effect of concealing a change in color of the oxidation catalyst resulting from its catalytic action. Preferably the coating comprises additionally a solid acid catalyst such as a zeolite as a decomposition-inducing catalyst in order to acquire an improved catalytic self-cleaning ability at relatively low temperatures such as 200.degree.-300.degree. C.
摘要:
In a method of forming porcelain enamel layer on a metal substrate, the method comprises steps of applying a first coating for an underlying ground layer and a second coating for overlying self-cleaning layer or coloring layer, and the method is characterized by firing both of said first coating and said second coating at the same time, forming a double layered porcelain enamel layer having an inter-layer wherein both layers are mixed, thus giving a sufficient bonding force inbetween as well as strong corrosion resistivity of the substrate due to few pinholes and bubbles in the underlying ground coating.
摘要:
A catalyst for purifying an exhaust gas comprising a carrier substantially composed of calcium aluminate and titanium oxide. The carrier is deposited with a platinum group metal or a metal oxide capable of oxidizing reductive gases into innoxious ones. The titanium oxide is applied on the surface of the carrier or incorporated in the carrier. The carrier may further comprise a transition metal oxide showing catalytic activity. A method of making a catalyst is also disclosed in which titanium oxide is applied on the surface of a solid mass of calcium aluminate.
摘要:
The present invention discloses an improved supported catalyst for gas purification which comprises a catalyst carrier composed of a molded body including alumina cement having a CaO component in an amount of less than 40% by weight, an Al.sub.2 O.sub.3 component in an amount of more than 35% by weight and an iron oxide component in an amount of less than 20% by weight. Additionally, catalytic materials and auxiliary materials may be added, depending on necessity. A platinum group metal is then supported on the catalyst carrier. There is also disclosed a method for manufacturing such catalyst. .Iadd.
摘要:
A molded solid fuel comprises a carbonaceous fuel material, a desulfurizing agent, and K.sub.2 CO.sub.3 and is effective to emit a reduced amount of sulfur when burned.
摘要翻译:成型的固体燃料包括碳质燃料材料,脱硫剂和K 2 CO 3,并且在燃烧时有效地排放少量的硫。
摘要:
The present invention discloses an improved supported catalyst for gas purification which comprises a catalyst carrier composed of a molded body including alumina cement having a CaO component in an amount of less than 40% by weight, an Al.sub.2 O.sub.3 component in an amount of more than 35% by weight and an iron oxide component in an amount of less than 20% by weight. Additionally, catalytic materials and auxiliary materials may be added, depending on necessity. A platinum group metal is then supported on the catalyst carrier. There is also disclosed a method for manufacturing such catalyst.
摘要翻译:本发明公开了一种改进的用于气体净化的负载型催化剂,其包括催化剂载体,该催化剂载体由包含少于40重量%的CaO组分的氧化铝水泥和大于35重量%的Al 2 O 3组分的成型体组成, 以及小于20重量%的氧化铁组分。 此外,根据需要,可以添加催化材料和辅助材料。 然后将铂族金属负载在催化剂载体上。 还公开了制造这种催化剂的方法。
摘要:
A slip containing a frit and an oxidizing catalyst is sprayed over a substrate and fused at a temperature as low as 550.degree. C. The frit consists of 15-60% by weight of SiO.sub.2, 9-35% of B.sub.2 O.sub.3, 10-30% Na.sub.2 O, 1-25% of Al.sub.2 O.sub.3, 0-20% of Li.sub.2 O, 0-10% of K.sub.2 O and 0-10% of CaO but must have at least two of Li.sub.2 O, K.sub.2 O and CaO. The oxidizing catalyst is MnOx or CuCO.sub.3 Cu(OH).sub.2 or a mixture thereof, the content being preferably between 5 and 50% by weight. The self-cleaning is effected at a temperature as low as at 280.degree. C.
摘要:
Two types of catalysts are disclosed. They are:1. Catalyst for oxidation of carbon monoxide, nitrogen monoxide or sulfur dioxide, comprising manganese dioxide, calcium aluminate, iron oxyhydroxide and copper hydroxycarbonate; and2. Catalyst for oxidation of carbon monoxide, nitrogen monoxide or sulfur dioxide, prepared by heating a mixture of manganese dioxide calcium aluminate, iron oxyhydroxide and copper hydroxycarbonate.
摘要:
Manganese dioxide obtained at the cathode by electrolyzing a hydrochloric acid-acidified aqueous manganese chloride solution with a specific current efficiency is high in oxygen content and extremely active as a depolarizer for cells.
摘要:
A molded material comprising CaCO.sub.3 and/or MgCO.sub.3 is made and used as a reaction bed through which carbonated water is run to make mineral water.