-
公开(公告)号：US6162524A
公开(公告)日：2000-12-19
申请号：US119412
申请日：1998-07-20
CPC分类号： B01J37/0215 , B01J38/00 , B01J38/48 , Y10T428/24149
摘要： The present invention relates to a method of removing a coating, such as a spent catalyst coating, from a carrier such as a metal plate or a honeycomb carrier. The metal plates have a surface which has the catalyst coating. The honeycomb is of the type having a plurality of channels defined by honeycomb walls, the honeycomb walls the having a coating thereon. The method comprises directing a fluid stream which can comprise a cleaning liquid at the coated plate surface or into the honeycomb channels with sufficient force to loosen and remove at least some of the coating from the carrier surface. The carrier can then be separated from the liquid and dried. Where additional coating is to be removed, a stream of gas is directed at the carrier surface with sufficient force to loosen and remove at least some of the coating. The cleaned carrier can then be recoated. The present invention includes reclaimed and recoated articles.
摘要翻译： 本发明涉及从诸如金属板或蜂窝状载体的载体上去除涂层如废催化剂涂层的方法。 金属板具有具有催化剂涂层的表面。 蜂窝体具有由蜂窝壁限定的多个通道的类型，蜂窝壁在其上具有涂层。 该方法包括以足够的力将可包含清洁液体的流体流引导至涂覆的板表面或蜂窝状通道，以松动并从载体表面去除至少一些涂层。 然后可以将载体与液体分离并干燥。 在要除去另外的涂层的情况下，气流以足够的力被引导到载体表面以松开和去除至少一些涂层。 然后可以重新涂覆清洁的载体。 本发明包括回收和重新涂覆的制品。
-
公开(公告)号：US5820693A
公开(公告)日：1998-10-13
申请号：US725264
申请日：1996-10-02
CPC分类号： B01J37/0215 , B01J38/00 , B01J38/48 , Y10T428/24149
摘要： The present invention relates to a method of removing a coating, such as a spent catalyst coating, from a carrier such as a metal plate or a honeycomb carrier. The metal plates have a surface which has the catalyst coating. The honeycomb is of the type having a plurality of channels defined by honeycomb walls, the honeycomb walls the having a coating thereon. The method comprises directing a fluid stream which can comprise a cleaning liquid at the coated plate surface or into the honeycomb channels with sufficient force to loosen and remove at least some of the coating from the carrier surface. The carrier can then be separated from the liquid and dried. Where additional coating is to be removed, a stream of gas is directed at the carrier surface with sufficient force to loosen and remove at least some of the coating. The cleaned carrier can then be recoated. The present invention includes reclaimed and recoated articles.
摘要翻译： 本发明涉及从诸如金属板或蜂窝状载体的载体上去除涂层如废催化剂涂层的方法。 金属板具有具有催化剂涂层的表面。 蜂窝体具有由蜂窝壁限定的多个通道的类型，蜂窝壁在其上具有涂层。 该方法包括以足够的力将可包含清洁液体的流体流引导至涂覆的板表面或蜂窝状通道，以松动并从载体表面去除至少一些涂层。 然后可以将载体与液体分离并干燥。 在要除去另外的涂层的情况下，气流以足够的力被引导到载体表面以松开和去除至少一些涂层。 然后可以重新涂覆清洁的载体。 本发明包括回收和重新涂覆的制品。
-
公开(公告)号：US20090320680A1
公开(公告)日：2009-12-31
申请号：US12534509
申请日：2009-08-03
IPC分类号： B01D53/06
CPC分类号： B01D53/64 , B01D53/02 , B01D53/10 , B01D53/83 , B01D2257/602 , B01J20/0207 , B01J20/0211 , B01J20/0214 , B01J20/0218 , B01J20/0222 , B01J20/0229 , B01J20/0237 , B01J20/024 , B01J20/0244 , B01J20/0248 , B01J20/0251 , B01J20/0281 , B01J20/0285 , B01J20/0288 , B01J20/0296 , B01J20/045 , B01J20/12 , B01J20/3021 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J20/3293
摘要： Methods of manufacturing bentonite sorbents for removal of pollutants including mercury from gas streams, such as a flue gas stream from coal-fired utility plants are disclosed. The methods include mixing bentonite sorbent particles with a sulfide salt and a metal salt to form a metal sulfide on the outer surface of the bentonite sorbent particles.
摘要翻译： 公开了用于从煤气流中除去包括汞在内的污染物的膨润土吸附剂的方法，例如来自燃煤电厂的烟道气。 所述方法包括将膨润土吸附剂颗粒与硫化物盐和金属盐混合，以在膨润土吸附剂颗粒的外表面上形成金属硫化物。
-
公开(公告)号：US07375048B2
公开(公告)日：2008-05-20
申请号：US11093256
申请日：2005-03-29
申请人： Gary M. Smith , Barry K. Speronello
发明人： Gary M. Smith , Barry K. Speronello
IPC分类号： B01J29/06
CPC分类号： B01J29/40 , B01J29/06 , B01J2229/42 , C10G11/02 , C10G11/05 , C10G11/18 , C10G2400/20
摘要： A catalyst composition suitable for reacting hydrocarbons such as in fluidized catalytic cracking (FCC) comprises an attrition-resistant particulate having at least 30% of an intermediate pore zeolite, kaolin, a phosphorous compound, and a high density unreactive component. An example of an unreactive component is alpha-alumina. The catalyst can also contain a reactive alumina of high surface area.
-
5.发明授权Massive bodies containing free halogen source for producing highly converted solutions of chlorine dioxide 有权含有游离卤素源的大量物质用于生产高度转化的二氧化氯溶液公开(公告)号：US07182883B2
公开(公告)日：2007-02-27
申请号：US10744481
申请日：2003-12-23
CPC分类号： C01B11/024 , A01N59/00 , A01N25/34 , A01N2300/00
摘要： A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen such as the sodium salt of dichloroisocyanuric acid or a hydrate thereof. The concentration of free halogen in the solution will be: (a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.
摘要翻译： 当块体被添加到液态水中时，用于产生二氧化氯溶液的大块体例如片剂。 大块体包括金属亚氯酸盐如亚氯酸钠，酸源如硫酸氢钠和游离卤素源如二氯异氰尿酸钠盐或其水合物。 溶液中游离卤素的浓度将是：（a）小于所述溶液中二氧化氯浓度的重量，二氧化氯浓度与二氧化氯和亚氯酸盐阴离子的浓度之比 所述溶液的重量至少为0.25:1; 或（b）等于或大于所述溶液中二氧化氯浓度的重量，并且二氧化氯浓度与所述溶液中二氧化氯和亚氯酸盐阴离子的浓度之和的比例为至少0.50： 1重量。
-
6.发明授权Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same 失效分级金属促进沸石催化剂和使用其的催化还原氮氧化物的方法
公开(公告)号：US5024981A
公开(公告)日：1991-06-18
申请号：US340992
申请日：1989-04-20
IPC分类号： B01D53/94 , B01J29/06 , B01J29/072 , B01J29/80
CPC分类号： B01J35/0006 , B01D53/9418 , B01J29/072 , B01J29/24 , B01J29/7615 , B01J37/0246 , B01D2251/2062 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , Y02C20/10
摘要： A zeolite catalyst composition is provided in which a first or upstream zone of the catalyst has a lower metal (e.g., iron or copper) promoter loading than the metal promoter loading of the second or downstream zone of the catalyst. The first zone may contain from none up to about 1 percent by weight of the promoter and the second zone may contain from about 1 to 30 percent by weight promoter. The zeolite may be any suitable zeolite, especially one having a silica-to-alumina ratio of about 10 or more, and a kinetic pore size of about 7 to about 8 Angstroms with such pores being interconnected in all three crystallographic dimensions. The method of the invention provides for passing a gaseous stream containing oxygen, nitrogen oxides and ammonia sequentially through first and second catalysts as described above, the first catalyst favoring reduction of nitrogen oxides and the second catalyst favoring the oxidation or other decomposition of excess ammonia.
-
7.发明授权Novel zeolite fluid cracking catalysts and preparation thereof from mixtures of calcined clay 失效新型沸石流体裂化催化剂及其由煅烧粘土的混合物制备
公开(公告)号：US4965233A
公开(公告)日：1990-10-23
申请号：US260433
申请日：1988-10-20
申请人： Barry K. Speronello
发明人： Barry K. Speronello
IPC分类号： B01J29/08 , C01B39/24 , C10G11/05 , C10G35/095
CPC分类号： C10G11/05 , B01J29/084
摘要： A novel improved process for maunfacturing fluid cracking cataylsts by an in situ procedure. Sodium zeolite Y (synthetic faujasite) is crystallized in pores of a physical mixture of preformed, highly porous precursor microspheres, one portion of the microspheres is composed of metakaolin and the other portion of the mixture of microspheres being composed of kaolin calcined to undergo the exotherm (the latter somethimes being referred to as spinel calcined clay or simply spinel). In particular, by the present invention the precursor microspheres have enhanced porosity (e.g., 0.3 to 0.5 cc/g as measured by mercury porosimetry) and are obtained by spray drying a slurry of hydrous (raw) kaolin clay which is characterized by presence of a major amount of large (plus 2 micron) kaolin stacks, which when spray dried, result in microspheres having the desired high content of macropores in which zeolite Y can grow. Relatively high levels of metakaolin containing microspheres are used in the synthesis.
-
8.发明授权Fluid cracking catalyst and method of making same from waste catalyst manufacture fines 失效流体裂解催化剂及其制备方法由废催化剂制造罚款
公开(公告)号：US4581340A
公开(公告)日：1986-04-08
申请号：US727985
申请日：1985-04-29
CPC分类号： B01J37/30 , B01J29/084 , B01J29/80 , C10G11/05
摘要： Co-product fines from the manufacture of zeolitic cracking catalysts from microspheres of calcined clay have heretofore been discarded as a waste stream. These fines, recovered as a moist cake, are slurried in a sodium silicate solution, spray dried to form microspheres and ion-exchanged initially at high pH and then at lower pH to produce attrition-resistant cracking catalysts which produce low levels of coke during use.
摘要翻译： 迄今为止，从煅烧粘土的微球制造沸石裂化催化剂的共同产品细粉被废弃为废物流。 这些作为潮湿蛋糕回收的细粉在硅酸钠溶液中成浆，喷雾干燥以形成微球体，并且最初在高pH下然后在较低pH下进行离子交换，以产生耐磨裂纹的催化剂，其在使用期间产生低水平的焦炭 。
-
9.发明申请Massive Bodies Containing Free Halogen Source For Producing Highly Converted Solutions of Chlorine Dioxide 有权含有自由卤素源的大规模生物体用于生产二氧化氯高度转化的溶液公开(公告)号：US20110159115A1
公开(公告)日：2011-06-30
申请号：US13041393
申请日：2011-03-05
CPC分类号： C01B11/024 , A01N59/00 , A01N25/34 , A01N2300/00
摘要： A massive body, e.g., a tablet, for producing a thickened solution of chlorine dioxide when the massive body is added to liquid water is disclosed. The massive body comprises a metal chlorite, an acid source and a thickener (incorporated directly into the massive body or added as a component separate from the massive body) and optionally a source of free halogen. The concentration of free chlorine in the solution will be: (a) less than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.25:1 by weight; or (b) equal to or greater than the concentration of chlorine dioxide in said solution on a weight basis and the ratio of the concentration of chlorine dioxide to the sum of the concentrations of chlorine dioxide and chlorite anion in said solution is at least 0.50:1 by weight.
摘要翻译： 公开了一种大块体，例如片剂，当将大体积添加到液体水中时，用于生产二氧化氯增稠溶液。 大块体包括金属亚氯酸盐，酸源和增稠剂（直接掺入到块状体中或作为与块体分离的组分加入）和任选的游离卤素源。 溶液中游离氯的浓度为：（a）小于所述溶液中二氧化氯浓度的重量，二氧化氯浓度与二氧化氯和亚氯酸根阴离子的浓度之比 所述溶液的重量至少为0.25:1; 或（b）等于或大于所述溶液中二氧化氯浓度的重量，并且二氧化氯浓度与所述溶液中二氧化氯和亚氯酸盐阴离子的浓度之和的比例为至少0.50： 1重量。
-
公开(公告)号：US07875238B2
公开(公告)日：2011-01-25
申请号：US11550995
申请日：2006-10-19
CPC分类号： C01B11/024
摘要： The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaline earth metal chlorite, e.g., sodium chlorite, and a chemical reagent comprising an acid or a material capable of releasing an acid upon exposure to liquid water, e.g., sodium bisulfate. The chlorite and the reagent are either combined as a mixture or are disposed as separate components adhered to the surface of one or more substrates. Upon exposure to liquid water, the chlorite and the reagent produce boundary layers. The chlorite and the reagent are disposed upon, and adhered to, the surface(s) of the substrates in a manner such that upon exposure to liquid water, the chlorite boundary layer comes into contact with the reagent boundary layer to thereby produce an aqueous chlorine dioxide solution.
摘要翻译： 本发明涉及当该装置与液态水接触时产生二氧化氯水溶液的装置。 该装置包括碱金属或碱土金属亚氯酸盐，例如亚氯酸钠，以及包含酸或能够暴露于液态水例如硫酸氢钠时能释放酸的材料的化学试剂。 亚氯酸盐和试剂可以作为混合物组合，或作为分离的组分而被设置在一个或多个衬底的表面上。 当暴露于液态水时，亚氯酸盐和试剂产生边界层。 亚氯酸盐和试剂以这样的方式设置在基底表面上并附着在其表面上，使得当暴露于液态水时，亚氯酸盐边界层与试剂边界层接触，从而产生氯水 二氧化碳溶液。
-
-
-
-
-
-
-
-
-
搜索结果
49 条记录 (耗时 0.026 秒)
