公开(公告)号：US20020025908A1

公开(公告)日：2002-02-28

申请号：US09870655

申请日：2001-06-01

申请人： ENICHEM S.p.A.

发明人： Patrizia Ingallina ,  Luciano Carluccio ,  Carlo Perego ,  Gastone Del Piero ,  Fabio Assandri

IPC分类号： B01J023/16

CPC分类号： C07C5/48 ,  B01J21/10 ,  B01J23/18 ,  B01J23/22 ,  B01J37/0236 ,  B01J37/08 ,  C07C2521/10 ,  C07C2523/18 ,  C07C2523/22 ,  C07C11/02 ,  C07C15/40

摘要： Process for preparing catalytic systems consisting of: a vanadium oxide; a bismuth oxide; and a carrier consisting of magnesium oxide, wherein the vanadium, expressed as V2O5, is in a quantity ranging from 2 to 35% by weight, the bismuth, expressed as Bi2O3, ranges from 2 to 40% by weight, the complement to 100 being the carrier, characterized in that it essentially comprises the following steps: preparation of solutions based on derivatives of the components of the catalytic system; mixing of the solutions prepared and optional aging; drying of the solution obtained; first heating, in the presence of air, of the solid obtained from the drying at a temperature ranging from room value to a temperature of between 290 and 310null C., for a time ranging from 1 to 3 hours; optional second heating, in the presence of air, of the solid for a time ranging from 0.5 to 2 hours at a constant temperature, ranging from 290 to 310null C., reached in the first heating; additional heating, in the presence of air, of the solid for a time ranging from 2 to 4 hours at the calcination temperature ranging from 600 to 850null C.; calcination, in the presence of air, of the solid at a constant temperature, ranging from 600 to 850null C., reached in the additional heating, for a time ranging from 8 to 16 hours.

摘要翻译： 制备催化剂体系的方法，包括：氧化钒; 氧化铋; 和由氧化镁组成的载体，其中以V 2 O 5表示的钒的量为2至35重量％，以Bi 2 O 3表示的铋为2至40重量％，100的互补为 载体，其特征在于其基本上包括以下步骤：基于催化体系的组分的衍生物制备溶液; 混合制备的溶液和任选的老化; 干燥得到的溶液; 在空气存在下，首先在从室温至290〜310℃的温度范围内干燥得到的固体加热1〜3小时; 在空气存在下，在第一次加热达到290〜310℃的恒定温度下，任选地在空气存在下第二次加热0.5〜2小时。 在600至850℃的煅烧温度下，在空气存在下，额外加热固体2至4小时; 在空气存在下，在额定加热下达到在600至850℃的恒定温度下煅烧固体8至16小时。