公开(公告)号：US5032376A

公开(公告)日：1991-07-16

申请号：US413609

申请日：1989-09-28

申请人： Wolfgang Kladnig

发明人： Wolfgang Kladnig

IPC分类号： C04B35/46 ,  C01G23/00 ,  C04B35/478

CPC分类号： C01G23/003 ,  C04B35/478 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  Y10S423/01 ,  Y10S423/02

摘要： An improved method for producing aluminum titanate powder material for making aluminum titanate ceramics.

摘要翻译： 一种制造钛酸铝陶瓷的钛酸铝粉末材料的改进方法。

公开(公告)号：US5036037A

公开(公告)日：1991-07-30

申请号：US518947

申请日：1990-05-04

申请人： Wolfgang Kladnig ,  Heinz Krivanec

发明人： Wolfgang Kladnig ,  Heinz Krivanec

IPC分类号： B01J23/22 ,  B01J23/24 ,  B01J23/74 ,  B01J23/755 ,  B01J35/02 ,  B01J37/00 ,  B01J37/10

CPC分类号： B01J37/105 ,  B01J37/0054 ,  B01J23/22 ,  B01J23/24 ,  B01J23/74 ,  B01J23/755 ,  B01J35/023

摘要： Process for producing catalysts for use within hydrogenation, oxidation, dehydration or dehydrogenation processes comprising oxides, in pure or mixed form, or being applied as mixed crystal systems, made of nickel, cobalt and molybdenum, vanadium, tungsten, titanium and chromium, starting with their corresponding aqueous solutions of their respective chlorides, fluorides or nitrates, which afterwards are processed within a pyrohydrolysis plant to gain the oxide powders, of typical specific surfaces areas of 1 to 100 m.sup.2 /g, agglomerate sizes of 1 to 500 microns and mean particle sizes of 20 to 30 microns. The corresponding anions of these salt solutions are transformed during pyrohydrolysis into their respective acids, which can be regained by absorptive means and which thereafter can be returned to a chemical dissolving process to make the salts and solutions for the pyrohydrolysis, which means an economic advantage. A further process comprises the prereduction of these spray roasted oxide powders at high temperatures, up to a maximum of 800.degree. C. The catalytically active constituents also can be made by this process by an in-situ precipitation on an inactive carrier, such as alumina, titaniumdioxide, phosphorpentoxide or also silicates. A further ceramic processing of such spray roasted powders into ceramic parts (pellets, balls, etc.) is possible.

摘要翻译： 用于在氢化，氧化，脱水或脱氢过程中使用的催化剂的方法，其包括纯的或混合形式的氧化物，或作为混合晶体系统施用，由镍，钴和钼，钒，钨，钛和铬制成，以 它们各自的氯化物，氟化物或硝酸盐的相应水溶液，其后在热水解设备中处理以获得氧化物粉末，其典型比表面积为1至100m 2 / g，聚集体尺寸为1至500微米，平均颗粒 尺寸为20至30微米。 这些盐溶液中相应的阴离子在热解过程中被转化成各自的酸，这些酸可以通过吸收手段重新获得，然后可以将其转化为化学溶解过程，以制备热解水解的盐和溶液，这意味着经济上的优势。 另外的方法包括在高达800℃下将这些喷射焙烧的氧化物粉末预还原。催化活性组分也可以通过这种方法通过非活性载体如氧化铝上的原位沉淀来制备 ，二氧化钛，次磷酸盐或硅酸盐。 将这种喷雾焙烧粉末进一步陶瓷加工成陶瓷部件（丸粒，球等）是可能的。