公开(公告)号：EP1575870B1

公开(公告)日：2010-10-20

申请号：EP03789120.7

申请日：2003-12-03

Applicant: BASF SE

Inventor： BASSLER, Peter ,  SIEGEL, Wolfgang ,  ACHHAMMER, Günther ,  NEGELE, Anton ,  MENIG, Helmuth ,  RUPPEL, Wilhelm ,  ZEHNER, Peter ,  LUYKEN, Hermann ,  VOGT, Volker

IPC: C01B3/02

CPC classification number: C01C3/0204 ,  B01J12/007 ,  B01J15/005 ,  B01J19/02 ,  B01J19/2415 ,  B01J23/866 ,  B01J2219/00135 ,  B01J2219/0236

公开(公告)号：EP1791787B1

公开(公告)日：2010-03-03

申请号：EP05785587.6

申请日：2005-09-02

Applicant: BASF SE

Inventor： DECKERS, Andreas ,  LAUTERBACH, Arnulf ,  NEGELE, Anton ,  SCHNEIDER, Thomas

IPC: C01C3/02

CPC classification number: C01C3/0204

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

Inventor： BÖHLING, Ralf ,  SCHIPPER, Michael ,  BERNNAT, Jens ,  WEBER, Wilhelm ,  PETERSEN, Peter ,  NEGELE, Anton ,  DECKERS, Andreas

IPC: C01C3/02 ,  B01J21/04 ,  B01J21/12 ,  B01J35/10

CPC classification number: C01C3/0204 ,  B01J21/04 ,  B01J21/12 ,  B01J23/745 ,  B01J35/1009

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