公开(公告)号：US06941742B1

公开(公告)日：2005-09-13

申请号：US09568365

申请日：2000-05-10

申请人： Ronald Neufert ,  Frank Witzel ,  Stefan Fischer ,  Günther Pajonk

发明人： Ronald Neufert ,  Frank Witzel ,  Stefan Fischer ,  Günther Pajonk

IPC分类号： B01D53/86 ,  B01D53/94 ,  F01N3/00 ,  F01N3/02 ,  F01N3/20

CPC分类号： F01N3/00 ,  B01D53/8609 ,  B01D53/94 ,  B01D53/9431 ,  B01D2251/2062 ,  F01N3/02 ,  F01N3/2066 ,  F01N2610/02 ,  Y02T10/24

摘要： To reduce the number of particles in an exhaust gas (A), in particular in the exhaust gas (A) from an internal-combustion engine, sulfur dioxide SO2 which is contained in the exhaust gas (A) is at least partially catalytically oxidized, in the presence of ammonia NH3 in a catalytic converter system having a catalytic activity which increases in the direction of flow, to form sulfur trioxide SO3. The simultaneous presence of sulfur trioxide SO3 and ammonia NH3 in the exhaust-gas stream which is brought about in this way results in an agglomeration of the small and very small particles and reduction in the number thereof.

摘要翻译： 为了减少废气（A）中的颗粒的数量，特别是在来自内燃机的废气（A）中），排气（A）中所含的二氧化硫SO 2 ）在具有在流动方向上增加的催化活性的催化转化器体系中在氨NH 3存在下至少部分催化氧化以形成三氧化硫SO 3， SUB>。 在这种方式引起的废气流中同时存在三氧化硫SO 3 3和氨NH 3，导致小的和非常小的颗粒的聚集 并减少其数量。

公开(公告)号：US06576585B2

公开(公告)日：2003-06-10

申请号：US09822038

申请日：2001-03-29

申请人： Stefan Fischer ,  Ronald Neufert ,  Günther Pajonk ,  Frank Witzel

发明人： Stefan Fischer ,  Ronald Neufert ,  Günther Pajonk ,  Frank Witzel

IPC分类号： B01J2108

CPC分类号： B01D53/9418 ,  B01D2255/20715 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/30 ,  B01J23/22 ,  B01J23/30 ,  B01J37/08

摘要： A process for producing a catalyst body includes providing titanium dioxide, tungsten trioxide, vanadium pentoxide, aluminum oxide, and/or silicon oxide for the catalyst body. A kneadable and/or shapable compound is processed to form a shaped body by extrusion or by coating of a support body. The shaped body is dried and is calcined to form an active compound. The calcined shaped body is artificially aged by a final heat treatment at a temperature higher than the calcination temperature to produce a catalyst body having a high resistance to deactivation at high temperatures. The starting materials include from 65 to 95% by weight of titanium dioxide, 2 to 30% by weight of tungsten trioxide, 0 to 2% by weight of vanadium pentoxide, preferably, less than 1.5%, 0.1 to 10% by weight of aluminum oxide, and 0.1 to 10% by weight of silicon dioxide. The final heat treatment is done is at 660 to 700° C., drying is at 20 to 100° C. prior to calcination, and calcination is at 400° C. to less than 700° C.

摘要翻译： 制备催化剂体的方法包括为催化剂体提供二氧化钛，三氧化钨，五氧化二钒，氧化铝和/或氧化硅。 通过挤出或涂覆支撑体来加工可捏合和/或可成形的化合物以形成成形体。 将成形体干燥并煅烧以形成活性化合物。 煅烧成形体通过在高于煅烧温度的温度下进行最终热处理而被人工老化，以产生在高温下具有高抗失活性的催化剂体。 原料包括65至95重量％的二氧化钛，2至30重量％的三氧化钨，0至2重量％的五氧化二钒，优选小于1.5重量％，0.1至10重量％的铝 氧化物和0.1〜10重量％的二氧化硅。 进行最终的热处理是在660-700℃，在煅烧之前干燥20-100℃，煅烧温度在400℃至小于700℃。

公开(公告)号：US06589495B2

公开(公告)日：2003-07-08

申请号：US09852350

申请日：2001-05-09

申请人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

发明人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

IPC分类号： C01B700

CPC分类号： B01J21/063 ,  B01D53/8662 ,  B01J21/18 ,  B01J23/30

摘要： Catalyst body for breaking down halogenated hydrocarbons, in particular dioxins and/or furans, having an active material which comprises titanium dioxide, carbon and at least one active component which is selected from the group consisting of oxides and mixed oxides of the transition metals, of the lanthanides, of the actinides, of the alkali metals and alkaline-earth metals, of aluminum, of tin and of silicon. In an off-gas flowing through the catalyst body, the levels of hydrocarbons contained therein are effectively reduced in part by adsorption and in part by oxidation, in particular at temperatures below 250° C.

摘要翻译： 用于分解具有活性物质的卤代烃，特别是二恶英和/或呋喃的催化剂体，其包含二氧化钛，碳和至少一种活性组分，其选自氧化物和过渡金属的混合氧化物， 碱金属和碱土金属的锕系元素，铝，锡和硅的镧系元素。 在流过催化剂体的废气中，其中所含的烃的水平部分地通过吸附有效地降低，部分地通过氧化，特别是在低于250℃的温度下被降低。

公开(公告)号：US06569394B2

公开(公告)日：2003-05-27

申请号：US09866130

申请日：2001-05-25

申请人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

发明人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

IPC分类号： F01N310

CPC分类号： F01N3/2066 ,  B01D53/8628 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2255/9205 ,  B01D2255/9207 ,  B01J21/063 ,  B01J29/166 ,  B01J29/40 ,  B01J29/48 ,  B01J29/7815 ,  F01N2510/063 ,  F01N2610/02 ,  Y02T10/24

摘要： A gas stream that contains nitrogen oxides is passed, in the presence of a reducing agent, over a catalyst body with an active material that contains a zeolite and titanium dioxide. The zeolite is a hydrogen-ion-exchanged, acid zeolite. Even at temperatures above 450° C., the nitrogen oxides contained are still effectively converted into nitrogen and water.

公开(公告)号：US06475952B2

公开(公告)日：2002-11-05

申请号：US10014248

申请日：2001-11-07

申请人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

发明人： Stefan Fischer ,  Günther Pajonk ,  Frank Witzel

IPC分类号： B01J2106

CPC分类号： B01J21/063 ,  B01D53/8662 ,  B01D53/8668 ,  B01J23/22 ,  B01J23/30 ,  B01J27/053 ,  B01J37/0009 ,  B01J37/0203

摘要： To produce a catalytically active material, titanium dioxide, together with an oxide or with a dissolved compound of tungsten and/or vanadium, is processed into a shapeable material. the shapeable material is dried to form a shaped body, and the shaped body is calcined. After the calcining, the shaped body is additionally impregnated with a dissolved compound of titanium and vanadium and is dried again. A catalytically active material of this type has a high catalytic activity with regard to breaking down dioxins and/or furans even in a temperature range of below 250° C. The catalytically active material is particularly suitable for producing dioxin and/or furan catalytic converters.

摘要翻译： 为了生产催化活性材料，将二氧化钛与氧化物或与钨和/或钒的溶解的化合物一起加工成可成形材料。 将可成形材料干燥以形成成形体，并对成形体进行煅烧。 在煅烧之后，将成形体另外浸渍有溶解的钛和钒的化合物并再次干燥。 这种类型的催化活性材料即使在低于250℃的温度范围内也能破坏二恶英和/或呋喃，具有高催化活性。催化活性物质特别适用于生产二恶英和/或呋喃催化转化器。

公开(公告)号：US06258436B1

公开(公告)日：2001-07-10

申请号：US09577051

申请日：2000-05-22

申请人： Günther Pajonk ,  Andreas Girschik ,  Robert Kleuderlein ,  Frank Witzel

发明人： Günther Pajonk ,  Andreas Girschik ,  Robert Kleuderlein ,  Frank Witzel

IPC分类号： B01J3504

CPC分类号： B01D53/9418 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01J23/22 ,  B01J23/24 ,  B01J35/04 ,  F01N3/2828 ,  F01N13/017 ,  Y10T428/24149 ,  Y10T428/24157 ,  Y10T428/24165 ,  Y10T428/24273

摘要： A catalyst body, which contains a number of passages through which a medium can flow in a preferred direction, is to be able to operate reliably with little cleaning outlay. It is also intended for cracking during the process of manufacturing the catalyst body to be particularly rare. For this purpose, each passage, disposed at right angles to the preferred direction, is approximately rectangular in cross section, as defined by a longitudinal side and a shorter transverse side. The number of passages per unit surface area lies in the range from 0.5 to 2.5 cm−2, and the longitudinal sides of a first group of the passages are disposed approximately at right angles to the longitudinal sides of a second group of the passages. The passages are in this case combined to form subgroups, the passages of each subgroup, in terms of their cross sections, forming an approximately square configuration, and each subgroup containing in each case passages from the same group.

摘要翻译： 一种催化剂体，其包含介质可以沿优选方向流动的多个通道，能够以很少的清洁支出可靠地操作。 也用于在催化剂体的制造过程中的裂化特别罕见。 为此目的，与优选方向成直角设置的每个通道的横截面为大致矩形，如纵向侧和较短横向侧所限定。 每单位表面积的通道数在0.5至2.5cm -2的范围内，并且第一组通道的纵向侧面大致与第二组通道的纵向侧边成直角。 在这种情况下，这些通道组合形成亚组，每个亚组的通道在其截面方面形成近似正方形的构型，每个子组在每种情况下包含来自同一组的通道。

公开(公告)号：US06641785B1

公开(公告)日：2003-11-04

申请号：US09640151

申请日：2000-08-16

申请人： Ronald Neufert ,  Frank Witzel

发明人： Ronald Neufert ,  Frank Witzel

IPC分类号： B01D5356

CPC分类号： B01D53/9445 ,  B01D53/944 ,  B01J23/30 ,  B01J23/6527 ,  Y02A50/2324 ,  Y02T10/22

摘要： The invention relates to a catalytic converter and a method for cleaning the exhaust gas from an internal combustion engine which is operated with excess air. The catalytic converter has an active material made from the oxides TiO2, V2O5, CaO and SiO2, as well as WO3 and/or MoO3. An active material of this type has the property of using the SCR method to reduce to equal extents the levels of nitrogen oxides and hydrocarbons. The CO oxidation activity of a material of this type can be increased by metering in elements selected from the group consisting of Pt, Pd, Rh, Ru and Ir in any desired inorganic form.

摘要翻译： 本发明涉及一种用于从内燃机中清除废气的催化转化器和方法，所述内燃机用过量的空气操作。 催化转化器具有由氧化物TiO 2，V 2 O 5，CaO和SiO 2以及WO 3和/或MoO 3制成的活性材料。 这种类型的活性材料具有使用SCR方法将氮氧化物和碳氢化合物的含量降低到相同程度的性质。 可以通过以任何所需无机形式计量选自Pt，Pd，Rh，Ru和Ir的元素来提高这种材料的CO氧化活性。

公开(公告)号：US4238475A

公开(公告)日：1980-12-09

申请号：US62861

申请日：1979-08-01

申请人： Frank Witzel ,  Wayne J. Puglia ,  K. Warren Clark ,  Donald A. M. Mackay

发明人： Frank Witzel ,  Wayne J. Puglia ,  K. Warren Clark ,  Donald A. M. Mackay

IPC分类号： A23G4/00 ,  A23G4/06 ,  A23G4/12 ,  A23G4/20 ,  A61K9/68 ,  A23G3/30

CPC分类号： A23G4/06 ,  A23G4/126 ,  A23G4/20 ,  A61K9/0058

摘要： A chewing gum is provided which is capable of releasing into the oral cavity relatively large amounts of finely-divided water-insoluble therapeutic materials, which chewing gum includes a water-soluble phase formed of aqueous softener, and the finely divided therapeutic component to be released, said therapeutic component being coated with a water-soluble coating agent for preventing resorption of therapeutic component back into the gum base and, optionally, a first sweetener, dispersed throughout the aqueous softener, and a relatively water-insoluble phase formed of a plurality of separate and distinct masses suspended in and dispersed throughout the water-soluble phase, each of said masses formed of particles of gum base and, optionally, particles of a second sweetener, suchas mannitol and/or sorbitol or sugar, enveloped by particles of gum base. Upon chewing the above gum, the therapeutic component is, in fact, released in the oral cavity in relatively large quantities, together with the aqueous softener.The therapeutic component to be released may comprise orally beneficial materials, such as dicalcium phosphate, antacids, such as magnesium hydroxide, calcium carbonate, as well as vitamins, drugs and the like. In a preferred embodiment, the therapeutic component is coated with gum arabic to facilitate release from chewing gum.

摘要翻译： 提供了一种口香糖，其能够将相当大量的细分的水不溶性治疗材料释放到口腔中，该口香糖包括由水性柔软剂形成的水溶性相和待分解的细分治疗成分 所述治疗组件涂覆有水溶性涂层剂，用于防止治疗组件吸收回胶基和任选地分散在整个水性软化剂中的第一甜味剂，以及由多种 分散且不同的质量悬浮在整个水溶性相中并分散在其中，每个所述质量由胶基和颗粒形成，第二甜味剂例如甘露醇和/或山梨糖醇或糖，由胶基颗粒 。 在咀嚼上述口香糖时，治疗成分实际上与水性软化剂一起以相对较大的量在口腔内释放。 要释放的治疗成分可以包括口服有益的材料，例如磷酸氢钙，抗酸剂，例如氢氧化镁，碳酸钙，以及维生素，药物等。 在优选的实施方案中，治疗组分用阿拉伯树胶涂覆以便于从口香糖中释放。

公开(公告)号：US4157401A

公开(公告)日：1979-06-05

申请号：US899122

申请日：1978-04-24

申请人： John J. Stroz ,  Abraham I. Bakal ,  Frank Witzel ,  Donald A. M. MacKay

发明人： John J. Stroz ,  Abraham I. Bakal ,  Frank Witzel ,  Donald A. M. MacKay

IPC分类号： A23G4/00 ,  A23G4/06 ,  A23G4/10 ,  A23G3/30

CPC分类号： A23G4/06 ,  A23G4/10

摘要： A chewing gum is provided having improved flavor retention, flexibility and softness, which chewing gum includes gum base, sweetener, one or more flavors which may soften the gum base, and a limonene derivative which inhibits or minimizes flavor migration and thus improves flavor duration and impact and preserves flexibility and cud softness of the gum even upon extended periods of storage.

摘要翻译： 提供具有改善的香味保持性，柔软性和柔软性的口香糖，其口香糖包括胶基，甜味剂，可以软化胶基的一种或多种香料，以及抑制或最小化风味迁移并因此改善风味持续时间的柠檬烯衍生物， 影响并保持口香糖的灵活性和柔软度，即使在长时间的储存时也是如此。

公开(公告)号：US06475453B1

公开(公告)日：2002-11-05

申请号：US09133004

申请日：1998-08-12

申请人： Wieland Mathes ,  Lothar Hofmann ,  Frank Witzel

发明人： Wieland Mathes ,  Lothar Hofmann ,  Frank Witzel

IPC分类号： B01J2104

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9477 ,  B01J35/04 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2610/02 ,  Y02T10/24

摘要： A configuration for decomposing nitrogen oxides in a gas stream includes a plurality of catalytic converters disposed one after the other through which the gas stream can flow. Each of the catalytic converters has a honeycomb structure with many parallel cells through which the gas stream can flow. Each of the catalytic converters also has a predetermined cell density and a predetermined average level of activity defined as a proportion by weight of the catalytically active agent. The predetermined cell density of a second catalytic converter through which the gas stream flows after a first catalytic converter is lower than the predetermined cell density of the first catalytic converter. The predetermined average level of activity of the second catalytic converter is also higher than the predetermined average level of activity of the first catalytic converter. The configuration is preferably used in conjunction with an exhaust gas from a combustion drive unit.

摘要翻译： 用于分解气流中的氮氧化物的构造包括多个催化转化器，其一个接一个地设置，气流可以流过。 每个催化转化器具有蜂窝结构，其具有许多平行的气室，气流可以流过该蜂窝结构。 每个催化转化器还具有预定的细胞密度和预定的平均活性水平，定义为催化活性剂的重量比例。 气体流在第一催化转化器之后流过的第二催化转化器的预定电池密度低于第一催化转化器的预定电池密度。 第二催化转化器的预定平均活性水平也高于第一催化转化器的预定平均活性水平。 该结构优选与来自燃烧驱动单元的废气结合使用。