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catalyst for the preparation of ftaalzuuranhydride formed by oxidation of o - xylene in the gaseous phase.and method for the preparation of ftaalzuuranhydride by oxidation of o - xylene with application of the catalyst.
catalyst for the preparation of ftaalzuuranhydride formed by oxidation of o - xylene in the gaseous phase.and method for the preparation of ftaalzuuranhydride by oxidation of o - xylene with application of the catalyst.
1368626 Enamels RHONE-PROGIL 12 Aug 1971 [26 Aug 1970 19 July 1971] 37926/71 Heading C1M [Also in Divisions B1 and C2] Enamels for coating catalyst tapes such as alumina or alpha-corundum (see Division B1) contain (1) 20 to 60% SiO2, 3 to 15% Al2O3, 0À5 to 16% CaO, 1 to 15% K2O+Na2O and 0 to 40% B2O3, (2) 30 to 60% SiO2, 3 to 15% Al2O3, 1 to 15% K2O+Na2O, 5 to 19% CaO+BaO+MgO and 20 to 40% B2O3; and (3) 20 to 40% SiO2, 3 to 10% Al2O3, 0 to 6% K2O+Na2O, 1 to 5% B2O3, 1 to 5% ZnO and more than 45% PbO. Numerous specific examples are given. The catalyst coating is then added.
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机译：1368626搪瓷RHONE-PROGIL 1971年8月12日[1970年8月26日1971年7月19日] 37926/71标题C1M [也在B1和C2分部中使用]用于涂覆催化剂带（例如氧化铝或α-刚玉）的搪瓷中包含（1） 20至60％SiO2、3至15％Al2O3、0‑5至16％CaO，1至15％K2O + Na2O和0至40％B2O3，（2）30至60％SiO2、3至15％Al2O3、1至15 ％K 2 O + Na 2 O，5-19％CaO + BaO + MgO和20-40％B 2 O 3; （3）20至40％的SiO 2，3至10％的Al 2 O 3，0至6％的K 2 O + Na 2 O，1至5％的B 2 O 3，1至5％的ZnO和45％以上的PbO。给出了许多具体的例子。然后添加催化剂涂层。
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