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    • 2. 发明授权
    • Multi-layer catalyst for producing phthalic anhydride
    • 用于生产邻苯二甲酸酐的多层催化剂
    • US07718561B2
    • 2010-05-18
    • US11597307
    • 2005-05-22
    • Christian GückelMarkus NiedermeierMarvin Estenfelder
    • Christian GückelMarkus NiedermeierMarvin Estenfelder
    • C07D307/89
    • B01J37/0221B01J21/063B01J23/002B01J23/22B01J27/198B01J35/0006B01J35/008B01J35/10B01J35/1014B01J35/1066B01J37/0219B01J2523/00C07C51/265C07C51/313C07C63/16B01J2523/47B01J2523/51B01J2523/53B01J2523/55B01J2523/15
    • The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range between 5 and 10% by weight, the active composition content of the third catalyst zone being less than or equal to the active composition content of the second catalyst zone. Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
    • 本发明涉及通过邻二甲苯和/或萘的气相氧化制备邻苯二甲酸酐的催化剂,其包括至少三个具有不同组成的催化剂区域和从气体入口侧朝向气体出口侧的催化剂区域 作为第一,第二和第三催化剂区域,催化剂区域在每种情况下都具有包含TiO 2的活性组合物,并且活性组合物含量从朝向气体出口侧设置的气体入口侧至第三催化剂区域的第一催化剂区域减少 条件是(a)第一催化剂区的活性组合物含量在约7至12重量%之间,(b)第二催化剂区的活性组成含量在6重量%至11重量%的范围内, 第二催化剂区的活性组合物含量小于或等于第一催化剂区的活性组合物含量,和(c)第三催化剂区具有活性组分 n含量在5至10重量%的范围内,第三催化剂区的活性组成含量小于或等于第二催化剂区的活性组合物含量。 还描述了制备这种催化剂的优选方法和根据本发明使用的二氧化钛的优选用途。
    • 3. 发明申请
    • MULTI-LAYER CATALYST FOR PRODUCING PHTHALIC ANHYDRIDE
    • 用于生产氢氧化钠的多层催化剂
    • US20090306409A1
    • 2009-12-10
    • US11914147
    • 2005-11-28
    • Christian GückelMarkus NiedermeierMarvin Estenfelder
    • Christian GückelMarkus NiedermeierMarvin Estenfelder
    • C07D307/89B01J23/04B01J27/14B01J31/06
    • B01J35/0006B01J23/002B01J27/198B01J37/0219B01J2523/00C07C51/265C07C51/313C07C63/16B01J2523/15B01J2523/47B01J2523/51B01J2523/53B01J2523/55
    • The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2 with a content of Na of less than 0.3% by weight, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range between 5 and 10% by weight, the active composition content of the third catalyst zone being less than or equal to the active composition content of the second catalyst zone. Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
    • 本发明涉及通过邻二甲苯和/或萘的气相氧化制备邻苯二甲酸酐的催化剂,其包括至少三个具有不同组成的催化剂区域和从气体入口侧朝向气体出口侧的催化剂区域 作为第一,第二和第三催化剂区域,催化剂区域在每种情况下都具有包含Na含量小于0.3重量%的TiO 2的活性组合物,并且活性组合物含量从朝向气体入口设置的第一催化剂区域减少 (a)第一催化剂区的活性组成物含量在约7至12重量%之间,(b)第二催化剂区具有活性组成含量 在6至11重量%的范围内,第二催化剂区的活性组分含量小于或等于第一催化剂区的活性组成含量,和(c) 第三催化剂区的活性组成含量在5至10重量%的范围内,第三催化剂区的活性组成含量小于或等于第二催化剂区的活性组成含量。 还描述了制备这种催化剂的优选方法和根据本发明使用的二氧化钛的优选用途。
    • 5. 发明授权
    • Multi-layer catalyst for producing phthalic anhydride
    • 用于生产邻苯二甲酸酐的多层催化剂
    • US07968491B2
    • 2011-06-28
    • US11914147
    • 2005-11-28
    • Christian GuckelMarkus NiedermeierMarvin Estenfelder
    • Christian GuckelMarkus NiedermeierMarvin Estenfelder
    • B01J21/00B01J31/00B01J27/00B01J27/198B01J23/02
    • B01J35/0006B01J23/002B01J27/198B01J37/0219B01J2523/00C07C51/265C07C51/313C07C63/16B01J2523/15B01J2523/47B01J2523/51B01J2523/53B01J2523/55
    • The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2 with a content of Na of less than 0.3% by weight, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range between 5 and 10% by weight, the active composition content of the third catalyst zone being less than or equal to the active composition content of the second catalyst zone. Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
    • 本发明涉及通过邻二甲苯和/或萘的气相氧化制备邻苯二甲酸酐的催化剂,其包括至少三个具有不同组成的催化剂区域和从气体入口侧朝向气体出口侧的催化剂区域 作为第一,第二和第三催化剂区域,催化剂区域在每种情况下都具有包含Na含量小于0.3重量%的TiO 2的活性组合物,并且活性组合物含量从朝向气体入口设置的第一催化剂区域减少 (a)第一催化剂区的活性组成物含量在约7至12重量%之间,(b)第二催化剂区具有活性组成含量 在6至11重量%的范围内,第二催化剂区的活性组分含量小于或等于第一催化剂区的活性组成含量,和(c) 第三催化剂区的活性组成含量在5至10重量%的范围内,第三催化剂区的活性组成含量小于或等于第二催化剂区的活性组成含量。 还描述了制备这种催化剂的优选方法和根据本发明使用的二氧化钛的优选用途。
    • 6. 发明申请
    • Multi-Layer Catalyst for Producing Phthalic Anhydride
    • 用于生产邻苯二甲酸酐的多层催化剂
    • US20080064593A1
    • 2008-03-13
    • US11597307
    • 2005-05-22
    • Christian GuckelMarkus NiedermeierMarvin Estenfelder
    • Christian GuckelMarkus NiedermeierMarvin Estenfelder
    • B01J21/06
    • B01J37/0221B01J21/063B01J23/002B01J23/22B01J27/198B01J35/0006B01J35/008B01J35/10B01J35/1014B01J35/1066B01J37/0219B01J2523/00C07C51/265C07C51/313C07C63/16B01J2523/47B01J2523/51B01J2523/53B01J2523/55B01J2523/15
    • The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range between 5 and 10% by weight, the active composition content of the third catalyst zone being less than or equal to the active composition content of the second catalyst zone. Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
    • 本发明涉及通过邻二甲苯和/或萘的气相氧化制备邻苯二甲酸酐的催化剂,其包括至少三个具有不同组成的催化剂区域和从气体入口侧朝向气体出口侧的催化剂区域 作为第一,第二和第三催化剂区域,催化剂区域在每种情况下都包含包含TiO 2的活性组合物,并且活性组合物含量从朝向气体入口侧设置到第三催化剂区域的第三催化剂区域减少 催化剂区域设置在气体出口侧,条件是(a)第一催化剂区的活性组成含量为约7至12重量%,(b)第二催化剂区的活性组成含量在 6和11重量%,第二催化剂区的活性组分含量小于或等于第一催化剂区的活性组成含量,和(c)第三催化剂区具有活性 组合物含量在5至10重量%的范围内,第三催化剂区的活性组成含量小于或等于第二催化剂区的活性组合物含量。 还描述了制备这种催化剂的优选方法和根据本发明使用的二氧化钛的优选用途。
    • 7. 发明授权
    • Method and device for gas phase diffusion coating of metal components
    • 金属部件气相扩散涂层的方法和装置
    • US07294361B2
    • 2007-11-13
    • US10250974
    • 2002-01-09
    • Thomas DautlMarkus NiedermeierHorst Pillhoefer
    • Thomas DautlMarkus NiedermeierHorst Pillhoefer
    • C23C16/00
    • C23C10/16C23C10/02C23C10/06
    • A process for gas diffusion coating of metallic components; in which a component surface which is to be coated is brought into contact with a metal halide as coating gas, to form a diffusion layer with a defined layer thickness and a defined coating metal content in % by weight in the component surface, working on the basis of a nominal concentration of the metal halide at the component surface which, at a defined coating temperature, leads to a defined coating time, wherein a first concentration, which is higher than the nominal concentration, for the metal halide is established for a first time, and at least one second concentration, which is at or below the nominal concentration, is established at the component surface for at least one second time, the first and the at least one second time being selected in such a way that their sum is shorter than the coating time with the nominal concentration. Also disclosed is a device for the process.
    • 一种金属部件的气体扩散涂覆工艺; 将要被涂覆的组分表面与作为涂覆气体的金属卤化物接触,以形成具有限定的层厚度的限定涂层金属含量和在组分表面中的重量%的限定涂层金属含量,在 在组分表面处的金属卤化物的标称浓度的基础,其在限定的涂布温度下导致限定的涂布时间,其中为第一种金属卤化物建立高于标称浓度的第一浓度 时间,并且处于或低于标称浓度的至少一个第二浓度在组分表面处建立至少一秒钟,第一和至少一个第二时间被选择为使得它们的和为 比标称浓度的涂布时间短。 还公开了用于该过程的装置。
    • 10. 发明申请
    • HIGH-TEMPERATURE ANTI-CORROSIVE LAYER AND METHOD FOR THE PRODUCTION THEREOF
    • 高温抗腐层及其生产方法
    • US20110058952A1
    • 2011-03-10
    • US12877018
    • 2010-09-07
    • Horst PillhoeferMarkus NiedermeierSiegfried Seuss
    • Horst PillhoeferMarkus NiedermeierSiegfried Seuss
    • F01D5/28C23C16/44C23C16/06F01D5/14
    • F01D5/288C23C10/06C23C10/08C23C10/10Y02T50/671
    • A method for producing a high-temperature protective layer containing metal on a metallic high-temperature material is disclosed. The metal is deposited on the high-temperature material via the gaseous phase to form the high-temperature protective layer. The high-temperature material is held at a diffusion temperature for a specific length of time so that at least a portion of the deposited metal is diffused into the high temperature material to form a diffusion zone and where the high-temperature material is not in contact with solids or liquids in the region of the surface to be coated, but merely has a solid/gas interface. Also disclosed is a component made of a high-temperature material with a hot-gas anti-corrosive layer containing chromium. There is a coating layer containing chromium applied to the surface of the high-temperature material, a diffusion layer in the high-temperature material, and a build-up zone between the coating layer and the diffusion layer.
    • 公开了一种在金属高温材料上生产含有金属的高温保护层的方法。 金属通过气相沉积在高温材料上,形成高温保护层。 将高温材料在扩散温度下保持特定长度的时间,使得沉积的金属的至少一部分扩散到高温材料中以形成扩散区,并且其中高温材料不接触 在待涂覆表面的区域中具有固体或液体,但仅具有固体/气体界面。 还公开了由具有含有铬的热气体防腐蚀层的高温材料制成的部件。 在高温材料的表面上涂布含有铬的涂层,高温材料中的扩散层,以及涂层与扩散层之间的积聚区域。