3076.     ---------------.  [SCHENCK, -----.]  [Manufacture of a Cobalt-Magnesium Catalyst.]  FIAT Reel K-20, frames 47-49, January 31, 1938, PB 70,211; TOM Reel 287.

        Catalyst substance consists of 100 parts of Co, 15% of MgO, 200 kieselguhr.  It is prepared as follows:  3.2 kg. soda are heated with 30 l. of distilled H₂O until boiling; then the boiling Mg solution is slowly added while stirring.  The boiling Co solution now is added, and the mixture is stirred for a further 30 sec.  After 2 kg. of kieselguhr has been added, the whole is thoroughly stirred again and then suction filtered, and the cake is washed with hot distilled H₂O for ½ hr.  Care must be taken that the cake always is covered with a H₂O layer of 1 cm. thickness.  After washing, the cake is mashed with 50 l. of distilled H₂O in a precipitating vessel, the dust from the shaping process being added.  After discharge into the suction filter, the H₂O is exhausted, and the cake is pressed.  The small pieces are dried in the drying oven.