VERFAHREN ZUR BLAUSÄURESYNTHESE AUS FORMAMID - KATALYSATOR
    16.
    发明公开
    VERFAHREN ZUR BLAUSÄURESYNTHESE AUS FORMAMID - KATALYSATOR 审中-公开
    VERFAHREN ZURBLAUSÄURESYNTHESEAUS FORMAMID - KATALYSATOR

    公开(公告)号:EP2984037A1

    公开(公告)日:2016-02-17

    申请号:EP14718544.1

    申请日:2014-04-09

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing hydrocyanic acid by the thermolysis of gaseous formamide in a reactor in the presence of a catalyst, wherein a) the catalyst (i) is an aluminum oxide catalyst, containing - 90 to 100 wt%, preferably 99 to 100 wt%, of aluminum oxide as component A, - 0 to 10 wt%, preferably 0 to 1 wt%, of silicon dioxide as component B, and - 0 to at most 0.1 wt% of iron or compounds containing iron as component C, wherein the total sum of components A, B, and C is 100 wt%, and (ii) has a BET surface area, measured as per DIN ISO 9277 : 2003-05, of 2 /g, and (iii) is tempered at temperatures of > 1400 °C for 1 to 30 h, preferably ≥ 1500 °C for 1 to 30 h, especially preferably at 1500 °C to 1800 °C for 2 to 10 h, and b) the reactor has an inner surface that is inert with respect to the thermolysis of formamide; and use of the catalyst in a method for producing hydrocyanic acid by the thermolysis of gaseous formamide in a reactor that has an inner surface that is inert with respect to the thermolysis of formamide.

    Abstract translation: 在催化剂存在下,通过在反应器中热分解气态甲酰胺来制备氢氰酸的方法,其中a)所述催化剂是(i)氧化铝催化剂,其包含90至100重量%,优选99至100重量% 重量的作为组分A的氧化铝,0至10重量%,优选0至1重量%的作为组分B的二氧化硅和0至不超过0.1重量%的含铁或铁的化合物 作为组分C,其中组分A,B和C的总量为100重量%,并且具有(ii)根据DIN ISO 9277:2003年5月测量的BET表面积<1m 2 / g和 (iii)在> 1400℃的温度下热处理1至30小时,优选≥1500℃,1至30小时,特别优选在1500℃至1800℃,对于2 至10小时,以及b)反应器具有关于甲酰胺热解的惰性的内表面; 以及在反应器中热分解气态甲酰胺制备氢氰酸的方法中使用催化剂,该反应器具有关于甲酰胺热解的惰性的内表面

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