3077.     ---------------.  [SCHENCK, -----.]  [Manufacture of a Thorium-Magnesium Thread Grain Catalyst.]  FIAT Reel K-20, frames 44-46, Feb. 1, 1938, PB 70,211; TOM Reel 287.

        Solution of Th and Mg nitrates is added to the Co solution before precipitation.  Then all 3 parts are precipitated at once.  After the thread grain has been formed, dried, and sieved, the continuous reduction takes place.  The reduced grain falls directly into an impregnation container filled with oil.  After drying, the grain is emptied into tight Fe barrels.