-
公开(公告)号：US06046125A
公开(公告)日：2000-04-04
申请号：US55690
申请日：1998-04-06
申请人： Stephen K. Pavel
发明人： Stephen K. Pavel
摘要： The present invention discloses aqueous methods for enhancing the acid sites of fluid catalytic cracking (FCC) catalysts. The methods comprise the steps of contacting an FCC catalyst, either spent or fresh, with an aqueous solution comprising water, an inorganic acid substantially free of chloride and aluminum. The acid is preferably sulfurous or sulfuric acid. The aluminum is provided by an aluminum source selected from the group consisting of the alumina trihydrates and aluminum oxide. Chloride contamination of the aluminum source should be minimal, preferably less than about 1000 ppm chloride, more preferably less than about 200 ppm chloride. The pH of the aqueous solution is adjusted to about 3-12 by the addition of a sufficient quantity of ammonium hydroxide. The FCC catalyst is added to this solution, preferably with stirring, in a weight ratio of about 1 part catalyst to about 1-10 parts water to prepare an aqueous slurry. Upon stabilization of the pH of the aqueous slurry, enhancement of the acid sites of the catalyst is achieved and the catalyst may be separated from the slurry and, if desired, washed. This simple, aqueous process reduces the level of many metal poisons on the FCC catalyst and produces a catalyst having an enhanced number of acid reaction sites.
摘要翻译： 本发明公开了用于增强流化催化裂化（FCC）催化剂的酸性位点的水性方法。 所述方法包括以下步骤：将消耗或新鲜的FCC催化剂与包含水，基本上不含氯化物和铝的无机酸的水溶液接触。 酸优选为亚硫酸或硫酸。 铝由选自三水合氧化铝和氧化铝的铝源提供。 铝源的氯化物污染应该是最小的，优选小于约1000ppm氯化物，更优选小于约200ppm氯化物。 通过加入足够量的氢氧化铵将水溶液的pH调节至约3-12。 将FCC催化剂优选在搅拌下加入到该溶液中，重量比为约1份催化剂至约1-10份水以制备含水浆料。 在稳定水性浆料的pH后，实现催化剂的酸性位置的增强，并且催化剂可以与浆料分离，并且如果需要，可以洗涤。 这种简单的含水方法降低了FCC催化剂上的许多金属毒素的水平，并产生了具有增加数量的酸反应位点的催化剂。
-
公开(公告)号：US5906953A
公开(公告)日：1999-05-25
申请号：US853394
申请日：1997-05-09
摘要： A process and apparatus for rejuvenating particulate used catalysts in a single rejuvenation vessel and providing a rejuvenated catalyst material having properties that result in activity substantially equal to new catalyst. The pressurizable vertically-oriented vessel has inlet and outlet openings for the catalyst and washing liquids, and is arranged to facilitate successive solvent liquid washing, water washings, and acid treatment steps for the used particulate catalyst provided in a bed in the vessel conical-shaped lower portion which contains catalyst rotary stirring means. After rejuvenation of the used catalyst, it is withdrawn from the vessel conical-shaped lower portion downwardly through a central withdrawal conduit and control valve for further processing. The water-soluble solvent and acid treatment liquids can be usually recovered by distillation for reuse in the catalyst rejuvenation process. The solvent-washed and acid-treated catalyst is separately heated and oxidized to remove carbon deposits and provide a completely rejuvenated catalyst material.
摘要翻译： 一种用于在单个复原容器中再生颗粒状催化剂并提供具有导致活性基本上等于新催化剂的性能的再生催化剂材料的方法和装置。 可加压的垂直取向的容器具有用于催化剂和洗涤液体的入口和出口，并且被布置成便于连续溶剂液体洗涤，水洗和酸处理步骤，用于设置在容器中的床中的使用的颗粒催化剂圆锥形 含有催化剂旋转搅拌装置的下部。 在使用过的催化剂复原后，其通过中央抽出管道和控制阀从容器锥形下部部分向下取出用于进一步处理。 通常可通过蒸馏回收水溶性溶剂和酸处理液，以便在催化剂复原过程中重新使用。 溶剂洗涤和酸处理的催化剂被单独加热和氧化以除去碳沉积物并提供完全复原的催化剂材料。
-
公开(公告)号：US5648305A
公开(公告)日：1997-07-15
申请号：US656004
申请日：1996-05-24
IPC分类号： B01J23/42 , B01J23/96 , B01J37/00 , B01J38/52 , C10G21/16 , C10G21/20 , C10G35/06 , B01J38/50 , B01J38/60 , C10G35/04
摘要： This invention relates to a process for improving the effectiveness of a refinery process catalyst. The process comprises treating the refinery process catalyst with an effective amount of reducing agent selected from the group consisting of hydrazine, oximes, hydroxylamines, carbohydrazide, erythorbic acid, and mixtures thereof.
摘要翻译： 本发明涉及一种提高炼油工艺催化剂有效性的方法。 该方法包括用选自肼，肟，羟胺，碳酰肼，异抗坏血酸及其混合物的有效量的还原剂处理炼油工艺催化剂。
-
公开(公告)号：US5420088A
公开(公告)日：1995-05-30
申请号：US009658
申请日：1993-01-26
申请人： Laura J. Silva , Lane A. Bray
发明人： Laura J. Silva , Lane A. Bray
IPC分类号： B01J21/06 , B01D61/44 , B01J23/10 , B01J23/12 , B01J23/16 , B01J23/38 , B01J23/70 , B01J37/34 , B01J38/48 , B01J38/60 , B01J38/70 , C10G45/04 , C10G47/02 , C10G49/04 , C25B1/00 , B01J20/00 , B01J20/34
CPC分类号： B01D61/44 , B01J37/348 , B01J38/60 , B01J38/70
摘要： A method of recovering catalyst material from latent catalyst material solids includes: a) combining latent catalyst material solids with a liquid acid anolyte solution and a redox material which is soluble in the acid anolyte solution to form a mixture; b) electrochemically oxidizing the redox material within the mixture into a dissolved oxidant, the oxidant having a potential for oxidation which is effectively higher than that of the latent catalyst material; c) reacting the oxidant with the latent catalyst material to oxidize the latent catalyst material into at least one oxidized catalyst species which is soluble within the mixture and to reduce the oxidant back into dissolved redox material; and d) recovering catalyst material from the oxidized catalyst species of the mixture. The invention is expected to be particularly useful in recovering spent catalyst material from petroleum hydroprocessing reaction waste products having adhered sulfides, carbon, hydrocarbons, and undesired metals, and as well as in other industrial applications.
摘要翻译： 从潜在催化剂材料固体中回收催化剂材料的方法包括：a）将潜在催化剂材料固体与液体酸性阳极电解液和可溶于酸性阳极电解液的氧化还原材料混合以形成混合物; b）将混合物中的氧化还原材料电化学氧化成溶解的氧化剂，氧化剂具有有效地高于潜在催化剂材料的氧化潜力; c）使氧化剂与潜催化剂材料反应，以将潜在催化剂材料氧化成至少一种可溶于该混合物内的氧化催化剂物质，并将氧化剂还原成溶解的氧化还原材料; 和d）从所述混合物的氧化催化剂种类中回收催化剂材料。 预期本发明特别可用于从具有粘附的硫化物，碳，烃和不需要的金属的石油加氢处理反应废物以及其它工业应用中回收废催化剂材料。
-
公开(公告)号：US5415849A
公开(公告)日：1995-05-16
申请号：US202225
申请日：1994-02-25
申请人： Keiji Toyabe , Kenji Kirishima , Haruo Shibayama , Yuji Nakano , Hisaaki Shimauchi , Ichiro Matsunaga
发明人： Keiji Toyabe , Kenji Kirishima , Haruo Shibayama , Yuji Nakano , Hisaaki Shimauchi , Ichiro Matsunaga
CPC分类号： C22B7/009 , B01J38/60 , B09B3/0016 , B09B3/0058 , B09B3/0083 , Y02P10/214
摘要： A process for dissolving used catalyst includes the steps of roasting, after subjecting to an optional deoiling treatment, the used catalyst at a temperature lower than 1,000.degree. C. but not lower than the temperature at which any of the residual components in the used catalyst undergoes ignition and combustion where the residual components are selected from the group consisting of oils, sulfur components, and carbon components; and dissolving the roasted product using sulfuric acid after adding a metal to the roasted product as a catalyst for accelerating dissolution. The process provides a simple and efficient method for completely dissolving a used catalyst having a carrier containing alumina as the principal component.
摘要翻译： 用于溶解所用催化剂的方法包括在低于1000℃但不低于使用的催化剂中的任何残余组分经历的温度下经过任选的脱油处理焙烧所用催化剂的步骤 点火和燃烧，其中残余组分选自油，硫组分和碳组分; 并在加入金属作为加速溶解的催化剂的焙烧产物之后用硫酸溶解焙烧产物。 该方法提供了一种用于完全溶解具有含有氧化铝的载体作为主要成分的用过的催化剂的简单有效的方法。
-
46.发明授权Selective recovery of dissolved metals and preparation of metal salt products 失效溶解金属的选择性回收和金属盐产品的制备
公开(公告)号：US5399322A
公开(公告)日：1995-03-21
申请号：US962307
申请日：1992-10-15
申请人： Enzo Coltrinari
发明人： Enzo Coltrinari
CPC分类号： B01J38/60 , B01J23/94 , C01G53/003 , C22B23/043 , C22B23/0453 , C22B7/009 , Y02P10/214 , Y02P20/584
摘要： Discussed is a process for recovering metals and metal-containing products, such as a nickel sulfate product, from aqueous feed solutions comprising two or more dissolved metals. A selected metal is isolated and in a purified form in an aqueous raffinate phase from solvent extraction of nonselected metals using an organic phase containing a salt of an organic acid and the selected metal. Aqueous feed solution may result from leaching operations, including leaching of nickel-containing catalyst, such as catalyst used in hydrogenation of vegetable oils.
摘要翻译： 讨论的是从包含两种或更多种溶解金属的水性进料溶液中回收金属和含金属的产品如硫酸镍产品的方法。 使用含有机酸的盐和所选择的金属的有机相，在非选择性金属的溶剂萃取中，将所选择的金属分离并以纯化形式在含水萃余相中进行。 含水的进料溶液可能由浸出操作引起，包括浸提含镍催化剂，如用于植物油氢化的催化剂。
-
公开(公告)号：US5387566A
公开(公告)日：1995-02-07
申请号：US217473
申请日：1994-03-24
CPC分类号： B01J29/06 , B01J29/82 , B01J37/0009 , B01J38/60 , B01J2229/37 , B01J2229/40
摘要： A process for converting catalytic cracking catalyst fines to a shaped composition comprises acid-treatment of catalytic cracking catalyst fines, followed by separation and drying of the acid-treated fines; preparing a shapable mixture by mixing the dried catalyst fines with calcium aluminate, sodium silicate, phosphoric acid and water; shaping (preferably extruding) the obtained shapable mixture; and drying and thereafter calcining the obtained shaped particles. A shaped composition having high crash strength is obtained by this process.
摘要翻译： 将催化裂化催化剂细粒转化为成型组合物的方法包括酸处理催化裂化催化剂细粒，然后分离和干燥酸处理的细粉; 通过将干燥的催化剂细粒与铝酸钙，硅酸钠，磷酸和水混合来制备可成型混合物; 成形（优选挤压）所得到的可成形混合物; 然后干燥，然后煅烧所得到的成形颗粒。 通过该方法获得具有高碰撞强度的成型组合物。
-
48.发明授权Process for regenerating spent acid-activated bentonite clays and smectite catalysts 失效废酸活化膨润土和蒙皂石催化剂再生方法
公开(公告)号：US5358915A
公开(公告)日：1994-10-25
申请号：US17382
申请日：1993-02-12
CPC分类号： B01J20/12 , B01J20/3433 , B01J20/3475
摘要： A three step process for regenerating spent bleaching clays and acid-activated smectite catalyst granules includes: (1) an extraction step to remove a majority of entrained oil, preferably about 75% to about 95% by weight of the entrained oil, when regenerating bleaching clays; (2) an oxidation step to remove the majority of remaining carbonaceous adsorbates which are not removed by the preceding extraction step, and (3) an acid wash step to restore the acidity normally associated with fresh acid-activated bleaching clays. The features of steps 2 and 3 may be combined into a single step by using an appropriate oxidant, for example, a source of acidic protons, such as peracetic acid.
摘要翻译： 用于再生废漂白粘土和酸活化蒙脱石催化剂颗粒的三步法包括：（1）当再生漂白时，提取步骤除去大部分夹带的油，优选约75％至约95％重量的夹带油 粘土 （2）氧化步骤以去除通过前述萃取步骤未除去的大多数剩余的碳质吸附物，和（3）酸洗步骤以恢复与新鲜酸活化的漂白粘土通常相关的酸度。 步骤2和3的特征可以通过使用合适的氧化剂，例如酸性质子源，例如过乙酸，将其组合成单一步骤。
-
公开(公告)号：US5260238A
公开(公告)日：1993-11-09
申请号：US951454
申请日：1992-09-25
申请人： Takashi Murakawa , Michio Sugimoto
发明人： Takashi Murakawa , Michio Sugimoto
IPC分类号： C07C5/373 , B01J29/90 , B01J38/54 , C07C15/04 , B01J29/38 , B01J38/60 , B01J38/66 , C10G35/095
摘要： There is disclosed a process for regenerating a deactivated catalyst containing a zeolite and a noble metal of group VIII of the Periodic Table supported thereon which comprises subjecting the deactivated catalyst to decoking treatment under reductive or oxidative condition and subsequently to contact treatment with a solution containing a halogen or a halogen-containing compound and thereafter calcining the deactivated catalyst. According to the above process, the catalytic activity of a deactivated catalyst is restored to the level comparable to that of a fresh catalyst by the use of an inexpensive regenerating agent and simplified steps. Thus, the regeneration process is expected to find effective use in petroleum refinery, petrochemical industry, etc.
-
公开(公告)号：US4609635A
公开(公告)日：1986-09-02
申请号：US724070
申请日：1985-04-17
IPC分类号： B01J27/192 , B01J27/28 , B01J38/48 , B01J38/60 , B01J38/64 , C07B61/00 , C07C67/00 , C07C253/00 , C07C253/26 , C07C255/08 , B01J38/66 , C07C120/02
CPC分类号： C07C253/26 , B01J27/285 , B01J38/485 , Y02P20/52 , Y02P20/584
摘要： Regeneration of an ammoxidation catalyst which is exhausted as a result of prolonged exposure to ammoxidation conditions, containing oxides of Mo, Bi, P, Fe, Co, Ni and possibly an alkali metal, particularly K, on a granular support, particularly silica, by means of a method including:the impregnation of the granules of spent catalyst with an aqueous molybdic acid solution, or with an aqueous solution of partially or totally salified molybdic acid in the form of the ammonium salt, with a volume of impregnation solution less than the total pore volume of the catalyst subjected to regeneration;the drying of the impregnated granules at a temperature of from 100.degree. to 200.degree. C.;the calcining of the dried granules at a temperature of from 250.degree. to 450.degree. C., solely when the impregnation is with an aqueous solution of partially or totally salified molybdic acid.Under ammoxidation conditions, the catalyst regenerated in this manner displays characteristics of activity, selectivity and of mechanical strength similar to those of the fresh catalyst.
摘要翻译： 由于长时间暴露于含有Mo，Bi，P，Fe，Co，Ni和可能的碱金属（特别是K）的氧化物的氨氧化条件而在颗粒状载体上，特别是二氧化硅上的氨氧化催化剂的再生，由 方法的手段包括：用钼酸水溶液浸渍废催化剂颗粒，或用铵盐形式的部分或全部盐化的钼酸水溶液浸渍一定量的浸渍溶液， 经过再生的催化剂的总孔体积; 浸渍的颗粒在100℃至200℃的温度下干燥; 干燥的颗粒在250℃至450℃的温度下煅烧，仅当浸渍是部分或全部盐化的钼酸的水溶液时。 在氨氧化条件下，以这种方式再生的催化剂显示与新鲜催化剂相似的活性，选择性和机械强度的特性。
-
-
-
-
-
-
-
-
-
搜索结果
156 条记录 (耗时 0.018 秒)
