公开(公告)号：EP0634210A1

公开(公告)日：1995-01-18

申请号：EP93111373.2

申请日：1993-07-15

申请人： MITSUBISHI RAYON CO., LTD.

发明人： Kuroda, Toru, c/o Central Research Lab. ,  Oh-Kita, Motomu,c/o Mitsubishi Rayon Co., Ltd.

IPC分类号： B01J27/199 ,  C07C51/25 ,  C07C57/04

CPC分类号： B01J23/002 ,  B01J27/199 ,  B01J2523/00 ,  C07C51/252 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/42 ,  B01J2523/48 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/67 ,  B01J2523/68 ,  B01J2523/25 ,  B01J2523/32 ,  B01J2523/34 ,  B01J2523/14 ,  B01J2523/27 ,  B01J2523/3706 ,  B01J2523/53 ,  B01J2523/54 ,  B01J2523/15 ,  B01J2523/52 ,  B01J2523/64 ,  B01J2523/842 ,  B01J2523/305 ,  B01J2523/3712 ,  B01J2523/63 ,  B01J2523/18 ,  B01J2523/72 ,  B01J2523/22 ,  B01J2523/57

摘要： Method of preparing a catalyst used for producing methacrylic acids through gas phase catalytic oxidation of methacrolein with molecular oxygen and represented by the formula:

        P a Mo b V c Ge d X e Y f Z g O h


wherein P, Mo, V, Ge and O represent phosphorus, molybdenum, vanadium, germanium and oxygen, respectively; X represents at least one element selected from the group consisting of arsenic, antimony, bismuth, zirconium, tellurium, silver and boron; Y represents at least one element selected from the group consisting of iron, copper, zinc, chromium, magnesium, tantalum, manganese, barium, gallium, cerium and lanthanum; Z represents at least one element selected from the group consisting of potassium, rubidium, cesium and thallium; and a, b, c, d, e, f, g, and h represent the atomic ratios of the respective elements, and when b = 12, then a = 0.5-3, c = 0.01-3, d = 0.01-3, e = 0-3, f = 0-3 and g = 0.01-3. The method comprises using germanium dioxide as Ge material and dissolving at least part of germanium dioxide in an aqueous solution of a hydroxide of an element represented by Z in the above formula.

摘要翻译： 制备用于通过用分子氧甲基丙烯醛的气相催化氧化生产甲基丙烯酸和代表由下式的催化剂的制备方法：PaMobVcGedXeYfZgOh worin P，钼，V，Ge和O分别代表磷，钼，钒，分别锗和氧; 选自砷，锑，铋，锆，碲，银，硼的选择的X darstellt的至少一种元素; 选自铁，铜，锌，铬，镁，钽，锰，钡，镓，铈和镧的选中的Y darstellt的至少一种元素; 选自钾，铷，铯和铊Ždarstellt的至少一种元素; 并且a，b，C，D，E，F，g和h表示元素respectivement的原子比，和当b = 12，则a = 0.5-3，c = 0.01-3，D = 0.01-3 ，E = 0-3，F = 0-3和g = 0.01-3。 该方法包括使用二氧化锗作为锗材料和由Z在上式中表示的元素的氢氧化物的溶液wässrige二氧化锗的一部分的至少溶解英寸

公开(公告)号：EP0634210B1

公开(公告)日：1998-06-17

申请号：EP93111373.2

申请日：1993-07-15

申请人： MITSUBISHI RAYON CO., LTD.

发明人： Kuroda, Toru, c/o Central Research Lab. ,  Oh-Kita, Motomu,c/o Mitsubishi Rayon Co., Ltd.

IPC分类号： B01J27/199 ,  C07C51/25 ,  C07C57/04

CPC分类号： B01J23/002 ,  B01J27/199 ,  B01J2523/00 ,  C07C51/252 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/42 ,  B01J2523/48 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/67 ,  B01J2523/68 ,  B01J2523/25 ,  B01J2523/32 ,  B01J2523/34 ,  B01J2523/14 ,  B01J2523/27 ,  B01J2523/3706 ,  B01J2523/53 ,  B01J2523/54 ,  B01J2523/15 ,  B01J2523/52 ,  B01J2523/64 ,  B01J2523/842 ,  B01J2523/305 ,  B01J2523/3712 ,  B01J2523/63 ,  B01J2523/18 ,  B01J2523/72 ,  B01J2523/22 ,  B01J2523/57