公开(公告)号：US5250487A

公开(公告)日：1993-10-05

申请号：US900839

申请日：1992-06-18

申请人： Peter Wirtz ,  Karl-Fred Worner ,  Friedrich Wunder ,  Klaus Fichler ,  Gunter Roscher ,  Ioan Nicolau

发明人： Peter Wirtz ,  Karl-Fred Worner ,  Friedrich Wunder ,  Klaus Fichler ,  Gunter Roscher ,  Ioan Nicolau

IPC分类号： B01J23/44 ,  B01J23/06 ,  B01J23/48 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J23/89 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15 ,  B01J37/06

CPC分类号： B01J37/0205 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： The invention relates to a process for the preparation of a catalyst which contains palladium and/or compounds thereof and alkali metal compounds, and additionally cadmium compounds and/or gold and/or compounds thereof, on support particles which have been pressed from SiO.sub.2 or an iO.sub.2 -Al.sub.2 O.sub.3 mixture with the aid of a binder which comprisesa) washing the roasted support particles with an acid which does not react with SiO.sub.2 or SiO.sub.2 -Al.sub.2 O.sub.3 mixtures, until no further cations of the binder employed during pressing of the support particles are released from the support particles;b) then impregnating the support particles with palladium, and gold or cadmium;c) then bringing the impregnated support particles into contact with a solution of a base at least until the thickness of the nobel metal shell generated in this way on the support particles no longer changes substantially; andd) then impregnating the support particles with an alkali metal compound.A shell-like distribution of the palladium and if appropriate of the gold in the support particles is generated in this manner.Furthermore, the invention relates to a catalyst prepared in this way and to its use for the preparation of vinyl acetate.

摘要翻译： 本发明涉及一种制备催化剂的方法，该催化剂包含钯和/或其化合物和碱金属化合物，以及另外的镉化合物和/或金和/或其化合物，其在从SiO 2或 iO 2 -Al 2 O 3混合物，其包括a）用不与SiO 2或SiO 2 -Al 2 O 3混合物反应的酸洗涤焙烧的载体颗粒，直到在压制载体颗粒期间不再使用粘合剂的阳离子释放 从支撑颗粒; b）然后用钯和金或镉浸渍载体颗粒; c）然后使浸渍的载体颗粒与碱的溶液接触，至少直到以这种方式在载体颗粒上产生的诺贝尔金属壳的厚度不再显着变化; 和d）然后用碱金属化合物浸渍载体颗粒。 以这种方式产生钯的壳状分布和如果合适的支撑颗粒中的金。 此外，本发明涉及以这种方式制备的催化剂及其用于制备乙酸乙烯酯的用途。

公开(公告)号：US5292931A

公开(公告)日：1994-03-08

申请号：US44212

申请日：1993-04-07

申请人： Peter Wirtz ,  Karl-Fred Worner ,  Friedrich Wunder ,  Klaus Eichler ,  Gunter Roscher ,  Ioan Nicolau

发明人： Peter Wirtz ,  Karl-Fred Worner ,  Friedrich Wunder ,  Klaus Eichler ,  Gunter Roscher ,  Ioan Nicolau

IPC分类号： B01J23/44 ,  B01J23/06 ,  B01J23/48 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J23/89 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15

CPC分类号： B01J37/0205 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： The invention relates to a process for the preparation of a catalyst which contains palladium and/or compounds thereof and alkali metal compounds, and additionally cadmium compounds and/or gold and/or compounds thereof, on support particles which have been pressed from SiO.sub.2 or an iO.sub.2 -Al.sub.2 O.sub.3 mixture with the aid of a binder which comprisesa) washing the roasted support particles with an acid which does not react with SiO.sub.2 or SiO.sub.2 -Al.sub.2 O.sub.3 mixtures, until no further cations of the binder employed during pressing of the support particles are released from the support particles;b) then impregnating the support particles with palladium, and gold or cadmium;c) then bringing the impregnated support particles into contact with a solution of a base at least until the thickness of the nobel metal shell generated in this way on the support particles no longer changes substantially; andd) then impregnating the support particles with an alkali metal compound.A shell-like distribution of the palladium and if appropriate of the gold in the support particles is generated in this manner.Furthermore, the invention relates to a catalyst prepared in this way and to its use for the preparation of vinyl acetate.

摘要翻译： 本发明涉及一种制备催化剂的方法，该催化剂包含钯和/或其化合物和碱金属化合物，以及另外的镉化合物和/或金和/或其化合物，其在从SiO 2或 iO 2 -Al 2 O 3混合物，其包括a）用不与SiO 2或SiO 2 -Al 2 O 3混合物反应的酸洗涤焙烧的载体颗粒，直到在压制载体颗粒期间不再使用粘合剂的阳离子释放 从支撑颗粒; b）然后用钯和金或镉浸渍载体颗粒; c）然后使浸渍的载体颗粒与碱的溶液接触，至少直到以这种方式在载体颗粒上产生的诺贝尔金属壳的厚度不再显着变化; 和d）然后用碱金属化合物浸渍载体颗粒。 以这种方式产生钯的壳状分布和如果合适的支撑颗粒中的金。 此外，本发明涉及以这种方式制备的催化剂及其用于制备乙酸乙烯酯的用途。

公开(公告)号：US5422329A

公开(公告)日：1995-06-06

申请号：US43567

申请日：1993-04-07

申请人： Peter Wirtz ,  Friedrich Wunder ,  Karl-Fred Worner

发明人： Peter Wirtz ,  Friedrich Wunder ,  Karl-Fred Worner

IPC分类号： B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  B01J37/34 ,  C07B61/00 ,  C07C67/055 ,  C07C69/15 ,  B01J23/04 ,  B01J23/06 ,  B01J23/44

CPC分类号： B01J37/343 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  C07C67/055

摘要： The invention relates to improved Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, their preparation and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The stated catalysts are prepared by atomizing a solution of corresponding metal salts by means of ultrasonics and then applying them in such limited amounts and within such a limited time to the carrier particles, and beginning to dry them, so that the catalytically active metal salts cannot penetrate into the carrier particles as far as the core but only into a larger or smaller outer part.

摘要翻译： 本发明涉及改进的Pd / K / Au，Pd / K / Ba和Pd / K / Cd载体催化剂，它们的制备及其在气相中由乙烯，乙酸和氧气制备乙酸乙烯酯的用途。 所述催化剂是通过用超声波雾化相应金属盐溶液制备的，然后以有限的量和在有限的时间内将它们施加到载体颗粒上，并开始将它们干燥，使得催化活性金属盐不能 渗透到载体颗粒直到芯部，但仅进入更大或更小的外部部分。

公开(公告)号：US5476963A

公开(公告)日：1995-12-19

申请号：US394840

申请日：1995-02-27

申请人： Peter Wirtz ,  Friedrich Wunder ,  Karl-Fred Worner

发明人： Peter Wirtz ,  Friedrich Wunder ,  Karl-Fred Worner

IPC分类号： B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  B01J37/34 ,  C07B61/00 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

CPC分类号： B01J37/343 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  C07C67/055

摘要： Supported catalyst, process for its preparation and its use for the preparation of vinyl acetateThe invention relates to improved Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, their preparation and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The stated catalysts are prepared by atomizing a solution of corresponding metal salts by means of ultrasonics and then applying them in such limited amounts and within such a limited time to the carrier particles, and beginning to dry them, so that the catalytically active metal salts cannot penetrate into the carrier particles as far as the core but only into a larger or smaller outer part.

摘要翻译： 负载催化剂及其制备方法及其在制备乙酸乙烯酯中的应用本发明涉及改进的Pd / K / Au，Pd / K / Ba和Pd / K / Cd载体催化剂，其制备及其在制备 来自乙烯的乙酸乙烯酯，乙酸和氧气在气相中。 所述催化剂是通过用超声波雾化相应金属盐溶液制备的，然后以有限的量和在有限的时间内将它们施加到载体颗粒上，并开始将它们干燥，使得催化活性金属盐不能 渗透到载体颗粒直到芯部，但仅进入更大或更小的外部部分。

公开(公告)号：US5622908A

公开(公告)日：1997-04-22

申请号：US276522

申请日：1994-07-18

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/44

CPC分类号： B01J37/0232 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/0223 ,  C07C67/055

摘要： The invention relates to Pd/K/Au, Pd/K/Ba, or Pd/K/Cd supported catalysts having an impregnated layer structure, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by spraying the support particles, while mixing intimately with a solution of salt of the corresponding elements in the form of drops having an average diameter of at least 0.3 mm or in the form of liquid jets and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa.multidot.s and the solution volume in spraying being from 5 to 80% of the pore volume of the support particles.

摘要翻译： 本发明涉及具有浸渍层结构的Pd / K / Au，Pd / K / Ba或Pd / K / Cd负载催化剂，其制备方法以及其用于从乙烯，乙酸和氧中制备乙酸乙烯酯的用途 气相。 指定的催化剂是通过喷雾载体颗粒，同时与平均直径为至少0.3mm的液滴形式的相应元素的盐溶液或液体喷射形式密切地混合，然后干燥载体颗粒 立即，溶液的动态粘度为至少0.003Pax，喷雾溶液体积为载体颗粒孔体积的5至80％。

公开(公告)号：US5674800A

公开(公告)日：1997-10-07

申请号：US443339

申请日：1995-05-17

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/63 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/40 ,  B01J23/42

CPC分类号： B01J37/0201 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by impregnating the support particles, while mixing intimately, with a solution of salts of the corresponding elements and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume in impregnation being from 5 to 80% of the pore volume of the support particles.

摘要翻译： 本发明涉及以外层形式构成的Pd / K / Au，Pd / K / Ba或Pd / K / Cd载体催化剂，其制备及其用于从乙烯制备乙酸乙烯酯，乙酸 和气相中的氧气。 规定的催化剂是通过在与相应元素的盐溶液紧密混合的同时将载体颗粒浸渍，然后立即干燥载体颗粒，溶液的动态粘度至少为0.003Pa·s，溶液体积 在浸渍中为载体颗粒的孔体积的5至80％。

公开(公告)号：US5777156A

公开(公告)日：1998-07-07

申请号：US835344

申请日：1997-04-07

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

CPC分类号： B01J37/0201 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and the use thereof for preparing vinylacetate from ethylene, acetic acid and oxygen in the gas phase. The specified catalysts are produced by impregnating the support particles with a solution of salts of the corresponding elements and then drying them, with the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume in impregnation being more than 80% of the pore volume of the support particles and the duration of the impregnation and also the time until commencement of the drying being selected so as to be sufficiently short for, after completion of the drying, the specified metal salts to be present in an outer layer of from 5% to 80% of the pore volume of the support particles.

摘要翻译： 本发明涉及以外层形式构成的Pd / K / Au，Pd / K / Ba或Pd / K / Cd载体催化剂，其制备及其用于从乙烯，乙酸和氧气制备乙酸乙烯酯的用途 在气相中。 指定的催化剂是通过用相应元素的盐溶液浸渍载体颗粒然后干燥而制备的，溶液的动态粘度为至少0.003Pa·s，浸渍溶液体积大于80％ 支撑颗粒的孔体积和浸渍持续时间以及直到开始干燥的时间被选择为足够短，在干燥完成之后，指定的金属盐存在于外层中 占载体颗粒的孔体积的5％至80％。

公开(公告)号：US5672734A

公开(公告)日：1997-09-30

申请号：US442781

申请日：1995-05-17

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

CPC分类号： B01J37/0232 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J23/66 ,  B01J37/0223 ,  C07C67/055

摘要： The invention relates to Pd/K/Au, Pd/K/Ba, or Pd/K/Cd supported catalysts having an impregnated layer structure, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by spraying the support particles, while mixing intimately with a solution of salt of the corresponding elements in the form of drops having an average diameter of at least 0.3 mm or in the form of liquid jets and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa.cndot.s and the solution volume in spraying being from 5 to 80% of the pore volume of the support particles.

摘要翻译： 本发明涉及具有浸渍层结构的Pd / K / Au，Pd / K / Ba或Pd / K / Cd负载催化剂，其制备方法以及其用于从乙烯，乙酸和氧中制备乙酸乙烯酯的用途 气相。 指定的催化剂是通过喷雾载体颗粒，同时与平均直径为至少0.3mm的液滴形式的相应元素的盐溶液或液体喷射形式密切地混合，然后干燥载体颗粒 立即，溶液的动态粘度为至少0.003Pa·s，喷雾溶液体积为载体颗粒孔体积的5-80％。

公开(公告)号：US5571771A

公开(公告)日：1996-11-05

申请号：US276438

申请日：1994-07-18

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/02 ,  B01J23/06 ,  B01J23/40 ,  B01J23/42

CPC分类号： B01J37/0201 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and the use thereof for preparing vinylacetate from ethylene, acetic acid and oxygen in the gas phase. The specified catalysts are produced by impregnating the support particles with a solution of salts of the corresponding elements and then drying them, with the dynamic viscosity of the solution being at least 0.003 Pa.s and the solution volume in impregnation being more than 80% of the pore volume of the support particles and the duration of the impregnation and also the time until commencement of the drying being selected so as to be sufficiently short for, after completion of the drying, the specified metal salts to be present in an outer layer of from 5% to 80% of the pore volume of the support particles.

摘要翻译： 本发明涉及以外层形式构成的Pd / K / Au，Pd / K / Ba或Pd / K / Cd载体催化剂，其制备及其用于从乙烯，乙酸和氧气制备乙酸乙烯酯的用途 在气相中。 指定的催化剂是通过用相应元素的盐溶液浸渍载体颗粒然后干燥而制备的，溶液的动态粘度为至少0.003Pa·s，浸渍溶液体积大于80％ 支撑颗粒的孔体积和浸渍持续时间以及直到开始干燥的时间被选择为足够短，在干燥完成之后，指定的金属盐存在于外层中 占载体颗粒的孔体积的5％至80％。

公开(公告)号：US5559071A

公开(公告)日：1996-09-24

申请号：US276445

申请日：1994-07-18

申请人： Roland Abel ,  Karl-Fred Worner

发明人： Roland Abel ,  Karl-Fred Worner

IPC分类号： B01J23/63 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  B01J37/02 ,  C07C67/055 ,  C07C69/15 ,  B01J23/40 ,  B01J23/42

CPC分类号： B01J37/0201 ,  B01J23/52 ,  B01J23/58 ,  B01J23/60 ,  C07C67/055

摘要： Surface impregnated catalyst, process for the production thereof, and use thereof for the preparation of vinyl acetate. The invention relates to Pd/K/Au, Pd/K/Ba or Pd/K/Cd supported catalysts built up in the form of an outer layer, the production thereof and also the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The catalysts specified are produced by impregnating the support particles, while mixing intimately, with a solution of salts of the corresponding elements and then drying the support particles immediately, with the dynamic viscosity of the solution being at least 0.003 Pa.multidot.s and the solution volume in impregnation being from 5 to 80% of the pore volume of the support particles.

摘要翻译： 表面浸渍催化剂，其制备方法及其用于制备乙酸乙烯酯的用途。 本发明涉及以外层形式构成的Pd / K / Au，Pd / K / Ba或Pd / K / Cd载体催化剂，其制备及其用于从乙烯制备乙酸乙烯酯，乙酸 和气相中的氧气。 规定的催化剂是通过在与相应元素的盐溶液紧密混合的同时将载体颗粒浸渍，然后立即干燥载体颗粒，溶液的动态粘度至少为0.003Pax，浸渍溶液体积 是载体颗粒的孔体积的5至80％。