Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PREPARATION OF HYDROCYANIC ACID
Document Type and Number:
Japanese Patent JPS6186416
Kind Code:
A
Abstract:

PURPOSE: To obtain HCN stably with short contact time and high space time yield by allowing a gaseous mixture consisting of acetonitrile and O2, if necessary, together with NH3 in the presence of a Pt-Rh alloy catalyst.

CONSTITUTION: (A) Acetonitrile, (B) 0.5W2 times mole of O2 or O2-contg. gas (e.g. air) basing on the amt. of acetonitrile, and, if necessary, (C) ≤2 times mole of NH3 basing on the amt. of (A) component are fed to a fixed bed reaction tower packed with gauze-shaped Pt-Rh catalyst contg. ≤20wt% Rh being heated at 500W800°C under ca. normal pressure, or if necessary, under reduced or elevated pressure to allow the feed to contact with the catalyst for 0.001W0.01sec. Thus, HCN is prepd. efficiently.


Inventors:
OTAKE MASAYUKI
HATANO MASAKATSU
OSHIMA KAZUNORI
Application Number:
JP20847684A
Publication Date:
May 01, 1986
Filing Date:
October 04, 1984
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI CHEM IND
International Classes:
C01C3/02; B01J23/00; B01J23/46; (IPC1-7): C01C3/02; B01J23/46
Attorney, Agent or Firm:
Hajime Hasegawa