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1.发明授权
公开(公告)号：US4303550A
公开(公告)日：1981-12-01
申请号：US107989
申请日：1979-12-28
IPC分类号： B01J27/28 , C07C51/25 , C07C57/055
CPC分类号： B01J27/285 , C07C51/252 , Y02P20/584
摘要： The present invention relates to a method for the regeneration of deactivated PMA based catalysts by imbibing an aqueous volatile base within the pore structure of the deactivated catalyst so as to form a fluid phase within the pore structure, adding a volatile acid to the fluid phase to form a precipitate. The precipitate is thereafter dried and calcined to yield the regenerated catalyst. A second method for regeneration is also provided and includes the steps of imbibing a volatile solvent within the pore structure of the deactivated catalyst, adding a volatile acid to the system, and then adding a volatile base to the system to form a precipitate within the pore structure. The precipitate is again dried and calcined to yield the regenerated catalyst.
摘要翻译： 本发明涉及通过在失活催化剂的孔结构内吸收水性挥发性碱以在孔结构内形成流体相，将挥发性酸添加到流体相中来再生失活的PMA基催化剂的方法， 形成沉淀。 然后将沉淀物干燥并煅烧，得到再生催化剂。 还提供了第二种再生方法，包括在失活催化剂的孔结构内吸收挥发性溶剂的步骤，向系统中加入挥发性酸，然后向系统中加入挥发性碱以在孔内形成沉淀物 结构体。 再次将沉淀物干燥并煅烧，得到再生催化剂。
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公开(公告)号：US4042153A
公开(公告)日：1977-08-16
申请号：US632536
申请日：1975-11-17
CPC分类号： B01J2/02
摘要： Distinct droplets of a slurry are dispersed by a dropping device consisting of a resilient tube connected to a liquid reservoir so that the liquid flows through the tube, and two valves and a plunger which work in a six-movement cycle on the outer surface of the resilient tube to discharge uniform droplets of liquid at equal drop intervals.
摘要翻译： 浆料的不均匀液滴通过由连接到液体储存器的弹性管组成的滴液装置分散，使得液体流过管，以及两个阀和柱塞，其在六运动循环中工作在 弹性管以相等的滴落间隔排出液体的均匀液滴。
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公开(公告)号：USRE30569E
公开(公告)日：1981-04-07
申请号：US745027
申请日：1976-11-26
CPC分类号： B01J37/0072 , B01J2/02 , B01J2/04
摘要： Hard, rounded aggregates are produced by preparing droplets of a slurry consisting of suspending liquid containing distinct particles of a solid and dropping the droplets of the slurry onto a bed of particles under conditions where the suspending liquid of the slurry droplet is removed. This technique is especially desirable for making unique fixed-bed catalysts.
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公开(公告)号：US3966639A
公开(公告)日：1976-06-29
申请号：US490429
申请日：1974-07-22
CPC分类号： B01J2/02 , B01J37/0072
摘要： Hard, rounded aggregates are produced by preparing droplets of a slurry consisting of suspending liquid containing distinct particles of a solid and dropping the droplets of the slurry onto a bed of particles under conditions where the suspending liquid of the slurry droplet is removed. This technique is especially desirable for making unique fixed-bed catalysts.
摘要翻译： 通过制备由悬浮液体含有不同的固体颗粒组成的浆液制备硬的圆形聚集体，并且在浆料液滴的悬浮液被除去的条件下将浆料的液滴滴落到颗粒床上。 这种技术对于制备独特的固定床催化剂是特别需要的。
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5.发明授权
公开(公告)号：US4528398A
公开(公告)日：1985-07-09
申请号：US442702
申请日：1982-11-18
IPC分类号： B01J27/188 , B01J37/02 , C07C51/235 , C07C51/25 , C07C57/055 , C07C57/05
CPC分类号： C07C51/235 , B01J27/188 , C07C51/252 , B01J37/0215
摘要： The present invention relates to a method for the preparation of phosphomolybdic acid based catalysts utilized in the oxidation of aldehydes to unsaturated carboxylic acids by forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, adding a base to the solution, evaporating the solution to yield a catalyst powder and thereafter drying and calcining the powder to form the active catalyst. A second method for preparation is also provided and includes the steps of forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, evaporating the solution to form a concentrate, impregnating a catalyst support material with the concentrate, contacting the impregnated support with ammonia gas in an amount sufficient to form an insoluble precipitate of ammonium alkyl phosphomolybdic acid within the pore structure of said support material and thereafter drying and calcining said impregnated support material so as to form a coated catalyst.
摘要翻译： 本发明涉及通过在基本上无水的链烷醇中形成水合磷钼酸的溶液来将醛氧化成不饱和羧酸的方法，用于制备基于磷钼酸的催化剂的方法，向溶液中加入碱，将溶液蒸发至 得到催化剂粉末，然后干燥并煅烧粉末以形成活性催化剂。 还提供了第二种制备方法，包括以下步骤：在基本无水的烷醇中形成水合磷钼酸溶液，蒸发溶液以形成浓缩物，用浓缩物浸渍催化剂载体材料，使浸渍的载体与氨气接触 其量足以在所述载体材料的孔结构内形成烷基磷钼酸铵的不溶性沉淀物，然后干燥和煅烧所述浸渍的载体材料以形成涂覆的催化剂。
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6.发明授权Preparation of acrylic acid and methacrylic acid in a combination fixed-fluid bed reactor 失效在固定流化床反应器中制备丙烯酸和甲基丙烯酸
公开(公告)号：US4622424A
公开(公告)日：1986-11-11
申请号：US773145
申请日：1985-09-06
CPC分类号： B01J8/0453 , B01J8/048 , B01J8/34 , C07C51/252
摘要： A process for conducting a combination of fixed and fluid-bed catalytic reactions is achieved by employing fixed-bed catalysts on supports within the fluid bed. The fluid-bed catalysts may move in both directions through the fixed bed, thereby giving advantages of both types of beds in one reactor.
摘要翻译： 通过在流化床内的载体上使用固定床催化剂来实现固定床和流化床催化反应的组合的方法。 流化床催化剂可以在两个方向上移动通过固定床，从而在一个反应器中提供两种类型的床的优点。
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公开(公告)号：US4470931A
公开(公告)日：1984-09-11
申请号：US108868
申请日：1979-12-13
IPC分类号： B01J8/04 , B01J8/34 , C07C51/25 , C07C120/14
CPC分类号： C07C253/26 , B01J8/0453 , B01J8/048 , B01J8/34 , C07C51/252
摘要： A process for conducting a combination of fixed and fluid-bed catalytic reactions is achieved by employing fixed-bed catalysts on supports within the fluid bed. The fluid-bed catalysts may move in both directions through the fixed bed, thereby giving advantages of both types of beds in one reactor.
摘要翻译： 通过在流化床内的载体上使用固定床催化剂来实现固定床和流化床催化反应的组合的方法。 流化床催化剂可以在两个方向上移动通过固定床，从而在一个反应器中提供两种类型的床的优点。
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8.发明授权
公开(公告)号：US4444906A
公开(公告)日：1984-04-24
申请号：US439952
申请日：1982-11-08
IPC分类号： B01J27/188 , B01J37/02 , C07C51/235 , C07C51/25 , B01J27/14
CPC分类号： C07C51/235 , B01J27/188 , C07C51/252 , B01J37/0215
摘要： The present invention relates to a method for the preparation of phosphomolybdic acid based catalysts by forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkyl alcohol, adding a base to the solution, evaporating the solution to yield a catalyst powder and thereafter drying and calcining the powder to form the active catalysts. A second method for preparation is also provided and includes the steps of forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkyl alcohol, evaporating the solution to form a concentrate, impregnating a catalyst support material with the concentrate, contacting the impregnated support with ammonia gas in an amount sufficient to form an insoluble precipitate of ammonium alkyl phosphomolybdic acid within the pore structure of said support material and thereafter drying and calcining said impregnated support material so as to form a coated catalyst.
摘要翻译： 本发明涉及通过在基本上无水的烷基醇中形成水合磷钼酸溶液来制备磷钼酸基催化剂的方法，向溶液中加入碱，蒸发溶液以产生催化剂粉末，然后干燥和煅烧 粉末形成活性催化剂。 还提供了第二种制备方法，包括以下步骤：在基本无水的烷基醇中形成水合磷钼酸溶液，蒸发溶液以形成浓缩物，用浓缩物浸渍催化剂载体材料，使浸渍的载体与氨接触 气体，其量足以在所述载体材料的孔结构内形成烷基磷钼酸铵的不溶性沉淀物，然后干燥和煅烧所述浸渍的载体材料以形成涂覆的催化剂。
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9.发明授权
公开(公告)号：US4443555A
公开(公告)日：1984-04-17
申请号：US439704
申请日：1982-11-08
IPC分类号： C07C51/235 , C07C51/25 , B01J27/14
CPC分类号： C07C51/235 , C07C51/252
摘要： The present invention relates to a method for the preparation of phosphomolybdic acid based catalysts by forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkyl alcohol, heating the solution to form a concentrate, and thereafter drying and calcining the concentrate support material so as to form the catalyst. Because the catalyst is prepared in alcoholic rather than aqueous solution, it has a greater activity in converting aldehydes to their respective unsaturated carboxylic acids than known phosphomolybdic acid based catalysts. Furthermore, the deammoniation step of the prior art is no longer required.
摘要翻译： 本发明涉及通过在基本上无水的烷基醇中形成水合磷钼酸溶液，加热溶液以形成浓缩物，然后干燥和煅烧浓缩物载体材料，制备磷钼酸基催化剂的方法，以便 形成催化剂。 因为催化剂是以醇而不是水溶液制备的，所以与已知的基于磷钼酸的催化剂相比，它将醛转化成各自的不饱和羧酸具有更大的活性。 此外，现有技术的脱氨步骤不再需要。
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公开(公告)号：US4315838A
公开(公告)日：1982-02-16
申请号：US912651
申请日：1978-06-05
IPC分类号： B01J27/18 , B01J27/186 , B01J37/00
CPC分类号： C07C253/26 , B01J27/186 , B01J37/0018 , Y02P20/52
摘要： Catalysts with improved catalytic properties are produced by a novel process in which not all of the heat-decomposable salt in the pre-catalyst is driven off during pre-heating and the powdery pre-catalyst obtained by pre-heating is agglomerated by dropping a slurry of the powder onto a particle bed.
摘要翻译： 具有改进的催化性能的催化剂是通过一种新的方法生产的，其中在预加热期间不预先催化预催化剂中的所有热分解盐，并且通过预热获得的粉状预催化剂通过滴下浆料 的粉末到颗粒床上。
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