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公开(公告)号：US3835069A
公开(公告)日：1974-09-10
申请号：US31833872
申请日：1972-12-26
Applicant: FORD MOTOR CO
CPC classification number: B01J23/63 , B01D53/9413 , B01D2255/1026 , B01D2255/2042 , B01J23/56 , B01J23/58
Abstract: A PROCESS IF TAUGHT FOR PRODUCING A RUTHENIUM CATALYST. A RUTHENATE IS PRESYNTHESIZED, GROUND INTO A FINE POWDER, DISPERSED IN A GAMMA ALUMINA CONTAINING MEDIUM AND APPLIED AS A SLURRY TO A CATALYTIC SUPPORT. THE RUTHENATE SLURRY IS DRIED ON THE SUPPORT AND CALCINED. THE PRODUCT PRODUCED IN THIS MANNER IS DESIRABLE FOR USE IN THE CATALYTIC CONVENTION IN A REDUCING ATMOSPHERE OF OXIDES OF NITROGEN, THE RUTHENIUM CATALYST OF THE PRODUCT PRODUCED BY THIS METHOD IS RESISTANT TO VOLATILIZATION WHEN EXPOSED TO AN OXIDIZING AMBIENT.
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公开(公告)号：US3819536A
公开(公告)日：1974-06-25
申请号：US31833972
申请日：1972-12-26
Applicant: FORD MOTOR CO
CPC classification number: B01J23/63 , B01D53/9413 , B01D2255/1026 , B01D2255/2042 , B01J23/56 , B01J23/58
Abstract: A process is taught for producing a ruthenium catalyst. A fixing compound, selected from alkaline earth materials or rare earth materials which decompose to an oxide of the material, is deposited on a catalytic support. A hydrated, halogenated ruthenium compound which reduces to ruthenium is also deposited on the catalytic support. The materials on the support are heated in a reducing atmosphere to form the ruthenium metal. After the reducing step the materials are fixed by heating them to a ruthenate forming temperature. The product produced in this manner is desirable for use in the catalytic conversion, in a reducing atmosphere, of oxides of nitrogen. The ruthenium catalyst of the product produced by this method is resistant to volatilization when exposed to an oxidizing ambient.
Abstract translation: 教导了一种制备钌催化剂的方法。 选自碱土金属或分解成材料的氧化物的稀土材料的固定化合物沉积在催化载体上。 还原成钌的水合卤化钌化合物也沉积在催化载体上。 载体上的材料在还原气氛中加热以形成钌金属。 在还原步骤之后，通过将其加热至钌酸盐形成温度来固定材料。 以这种方式生产的产品在用于在还原气氛中的氮氧化物的催化转化中是理想的。 通过该方法生产的产品的钌催化剂在暴露于氧化环境中时耐挥发。
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3.发明授权
公开(公告)号：US3730686A
公开(公告)日：1973-05-01
申请号：US3730686D
申请日：1971-06-29
Applicant: FORD MOTOR CO
Inventor： BREITENBACH L , SHELEF M
CPC classification number: G01N21/766 , G01N31/00 , Y10T436/175383 , Y10T436/178459
Abstract: GASEOUS MIXTURES INCLUDING NITROGEN DIOXIDE ARE PASSED THROUGH A CONVERTER CONTAINING MOLYBDENUM AT A TEMPERATURE OF ABOUT 475*C. TO CONVERT THE NITROGEN DIOXIDE TO NITRIC ODIXE WITHOUT CONVERTING SIGNIFICANT AMOUNTS OF ANY EXISTING AMMONIA AND WITHOUT DESTROYING ANY EXISTING NITRIC OXIDE. THE GASEOUS MIXTURE LEAVING THE CONVERTER IS INTRODUCED INTO A REACTION CHAMBER WHERE THE CHEMILUMINESCENCE OF THE REACTION OF THE NITRIC OXIDE AND OZONE IS USED TO DETERMINE THE AMOUNT OF NITROGEN DIOXIDE IN THE ORIGINAL GASEOUS MIXTURE. SUBSEQUENTLY, THE GASEOUS MIXTURE IS PASSED THROUGH A SECOND CONVERTER CONTAINING COPPER AT A TEMPERATURE OF ABOUT 410*C. TO CONVERT ANY AMMONIA TO NITRIC OXIDE AND THE INCREASED CHEMILUMINESCENCE IS USED TO DETERMINE THE AMOUNT OF AMMONIA IN THE ORIGINAL MIXTURE.
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