公开(公告)号：US5221657A

公开(公告)日：1993-06-22

申请号：US707049

申请日：1991-05-29

申请人： Franco Montino ,  Luigi Balducci ,  Francesco Ferrero ,  Nicola Pernicone

发明人： Franco Montino ,  Luigi Balducci ,  Francesco Ferrero ,  Nicola Pernicone

IPC分类号： B01J23/78 ,  B01J35/10 ,  B01J37/03 ,  C01C1/04

CPC分类号： B01J23/78 ,  B01J35/002 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/108 ,  C01C1/0411 ,  Y02P20/52

摘要： A process for producing the precursor of a precipitated catalyst for the sub.3 synthesis, based on Fe, Al, Co and K oxides, which comprises the steps of:(A) preparing an aqueous solution of water-soluble compounds of Fe, Al and Co--adding iron as a water-soluble ferrous salt of an organic acid--and causing, by addition of an alkaline precipitating solution, the co-precipitation of the corresponding (Fe, Al and Co) hydroxides, which still contain iron in the ferrous form;(B) oxidizing the hydroxide suspension prepared according to point (A) until divalent iron and trivalent iron are in a ratio to each other which ranges from 0.20 to 0.50;(C) operating an alkaline doping with a potassium compound and heating in an inert atmosphere up to above 850.degree. C.

公开(公告)号：US4789657A

公开(公告)日：1988-12-06

申请号：US112051

申请日：1987-10-23

申请人： Nicola Pernicone ,  Francesco Ferrero ,  Antonio Gennaro

发明人： Nicola Pernicone ,  Francesco Ferrero ,  Antonio Gennaro

IPC分类号： B01J23/745 ,  B01J23/76 ,  B01J23/78 ,  B01J37/00 ,  B01J37/08 ,  C01C1/04 ,  B01J21/04 ,  B01J21/08

CPC分类号： B01J37/00 ,  B01J23/745 ,  B01J23/76 ,  B01J37/08 ,  C01C1/0411 ,  Y02P20/52

摘要： A process for preparing iron-based catalysts for the synthesis of ammonia by melting of magnetite along with metal oxides as promoters, subsequent cooling of the molten mass and reduction thereof to the desired size, wherein the abovesaid cooling occurs at a rate higher than 25.degree. C./min., preferably ranging from 100.degree. C. to 1600.degree. C./min., at a temperature ranging from 1700.degree. C. to 700.degree. C.The present invention relates to a process for preparing iron-based catalysts having a high activity in the ammonia synthesis, and to the catalyst so obtained.

摘要翻译： 一种制备用于合成氨的铁基催化剂的方法，该方法是将磁铁矿与金属氧化物一起熔化，作为促进剂，随后冷却熔融物料并将其还原成所需尺寸，其中上述冷却速率高于25℃ 优选在100℃至1600℃/分钟的范围内，在1700℃至700℃的温度下进行。本发明涉及一种制备铁基催化剂的方法，该方法具有 氨合成中的高活性，以及​​如此得到的催化剂。

公开(公告)号：US4522931A

公开(公告)日：1985-06-11

申请号：US530755

申请日：1983-09-09

申请人： Giuseppe Gubitosa ,  Antonio Berton ,  Nicola Pernicone ,  Graziano Vidotto

发明人： Giuseppe Gubitosa ,  Antonio Berton ,  Nicola Pernicone ,  Graziano Vidotto

IPC分类号： B01J21/18 ,  B01J23/40 ,  B01J23/44 ,  B01J23/74 ,  B01J37/00 ,  B01J37/02 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/50 ,  C07C211/51 ,  B01J31/02

CPC分类号： B01J21/18 ,  B01J37/0018 ,  C07C209/36

摘要： A method for the preparation of catalysts, particularly suitable for the hydrogenation of organic compounds, according to which method a catalytic element, preferably selected from the VIII Group elements, is supported on the outer surface of an adsorbent carbon, said method being characterized by the fact that:(a) said carbon containing an amount of ash lower than 1% by weight, is suspended in water;(b) a liquid immiscible with water is added to the suspension obtained according to (a), the volume of said immiscible liquid being substantially equal to or lower than the volume of the carrier's pores;(c) an aqueous solution, containing a compound of the catalytic element, is brought into contact with the suspension obtained according to (b).

摘要翻译： 一种用于制备特别适用于有机化合物氢化的催化剂的方法，根据该方法，优选选自VIII族元素的催化元素负载在吸附剂碳的外表面上，所述方法的特征在于： 事实是：（a）含有少于1重量％的灰分的所述碳悬浮在水中; （b）与根据（a）获得的悬浮液中加入与水不混溶的液体，所述不混溶液体的体积基本上等于或低于载体孔隙的体积; （c）含有催化元素化合物的水溶液与根据（b）获得的悬浮液接触。

公开(公告)号：US20050165263A1

公开(公告)日：2005-07-28

申请号：US10510105

申请日：2003-03-31

申请人： Lucio Forni ,  Nicola Pernicone

发明人： Lucio Forni ,  Nicola Pernicone

IPC分类号： B01J23/78 ,  B01J37/00 ,  C07C5/333 ,  C07C2/64

CPC分类号： B01J37/0009 ,  B01J23/78 ,  C07C5/3332 ,  C07C2523/745 ,  C07C2523/78 ,  C07C2523/83 ,  C07C2523/88 ,  C07C15/46

摘要： The present invention relates to a catalyst for the dehydrogenation of ethylbenzene to styrene and to a process for the preparation thereof. The catalyst contains iron oxide, potassium oxide and calcium oxide, preferably also cerium oxide and molybdenum oxide, and is characterised by a magnesium content (expressed as MegO) lower than 0.001 %.

摘要翻译： 本发明涉及乙苯脱氢成苯乙烯的催化剂及其制备方法。 该催化剂含有氧化铁，氧化钾和氧化钙，优选氧化铈和氧化钼，其特征在于低于0.001％的镁含量（以MegO表示）。

公开(公告)号：US07115239B2

公开(公告)日：2006-10-03

申请号：US10497795

申请日：2002-10-18

申请人： Lucio Forni ,  Nicola Pernicone

发明人： Lucio Forni ,  Nicola Pernicone

IPC分类号： C01C1/04 ,  B01J21/18

CPC分类号： B01J23/58 ,  B01J21/18 ,  B01J23/462 ,  B01J35/002 ,  B01J35/1019 ,  B01J37/0205 ,  C01C1/0411 ,  Y02P20/52

摘要： Catalysts for ammonia synthesis based on ruthenium, directly supported over graphite having BET specific surface area in excess of 10 m2/g, preferably in excess of 100 m2/g and more preferably in excess of 280 m2/g, the graphite being characterised by X-ray diffraction pattern containing the diffraction lines characteristic of the crystalline graphite only, with exclusion of relevant bands due to amorphous carbon, to which catalysts barium, caesium and potassium are added as promoters. The graphitic supports allow to avoid the known pre-treatments and post-treatments needed in the case of supports obtained by partial graphitisation of active carbons and during use they are affected negligibly by the methanation shown by the supports obtained from active carbons. Furthermore, the catalysts of the present invention are characterised by a very high activity, even with ruthenium loadings well below the known loading.

摘要翻译： 催化剂用于基于钌的氨合成，直接负载在BET比表面积超过10m 2 / g，优选超过100m 2 / g的石墨上， 更优选超过280m 2 / g，该石墨的特征在于包含仅结晶石墨特征的衍射线的X射线衍射图，排除了由于无定形碳引起的相关带，衍射线 加入催化剂钡，铯和钾作为助催化剂。 石墨载体允许避免在通过部分石墨化活性炭获得的载体的情况下所需的已知的预处理和后处理，并且在使用期间，它们受到由活性碳获得的载体所示的甲烷化的影响可忽略。 此外，本发明的催化剂的特征在于非常高的活性，即使钌负载远低于已知的负载量。

公开(公告)号：US20050053541A1

公开(公告)日：2005-03-10

申请号：US10497795

申请日：2002-10-18

申请人： Lucio Forni ,  Nicola Pernicone

发明人： Lucio Forni ,  Nicola Pernicone

IPC分类号： B01J21/18 ,  B01J23/46 ,  B01J23/58 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  C01C1/04

CPC分类号： B01J23/58 ,  B01J21/18 ,  B01J23/462 ,  B01J35/002 ,  B01J35/1019 ,  B01J37/0205 ,  C01C1/0411 ,  Y02P20/52

摘要： Catalysts for ammonia synthesis based on ruthenium, directly supported over graphite having BET specific surface area in excess of 10 m2/g, preferably in excess of 100 m2/g and more preferably in excess of 280 m2/g, the graphite being characterised by X-ray diffraction pattern containing the diffraction lines characteristic of the crystalline graphite only, with exclusion of relevant bands due to amorphous carbon, to which catalysts barium, caesium and potassium are added as promoters. The graphitic supports allow to avoid the known pre-treatments and post-treatments needed in the case of supports obtained by partial graphitisation of active carbons and during use they are affected negligibly by the methanation shown by the supports obtained from active carbons. Furthermore, the catalysts of the present invention are characterised by a very high activity, even with ruthenium loadings well below the known loading.

摘要翻译： 用于基于钌进行氨合成的催化剂，其直接负载在BET比表面积超过10m 2 / g，优选超过100m 2 / g，更优选超过280m 2的石墨上。 / g，石墨的特征在于包含仅结晶石墨特征的衍射线的X射线衍射图，排除了由于无定形碳而引起的相关带，催化剂钡，铯和钾作为助催化剂。 石墨载体允许避免在通过部分石墨化活性炭获得的载体的情况下所需的已知的预处理和后处理，并且在使用期间，它们受到由活性碳获得的载体所示的甲烷化的影响可忽略。 此外，本发明的催化剂的特征在于非常高的活性，即使钌负载远低于已知的负载量。