3003. ------. [RUHRCHEMIE A. G.] [Process and Apparatus for the Uniform Filling of Catalyst Converter Tubes.] German Patent Appl. R 113,953, R 632, filed Aug. 31, 1942 (Cl. IV d-12 g). FIAT Reel K-30, frames 7,628-7,630; PB 73,587; TOM Reel 177, fram

PATENTS

3003. ------. [RUHRCHEMIE A. G.] [Process and Apparatus for the Uniform Filling of Catalyst Converter Tubes.] German Patent Appl. R 113,953, R 632, filed Aug. 31, 1942 (Cl. IV d-12 g). FIAT Reel K-30, frames 7,628-7,630; PB 73,587; TOM Reel 177, frames 1,509-1,512; TOM Reel 36, bag 3,454, item 36, 4 pp. : Meyer Transl. PC-S-II, Fischer-Tropsch. vol. 1, chap. 12, 1948, p. 31.

Uniform heights of catalysts in reactors equipped with vertical tubes, in which the catalyst is within the tubes, can be established using a suction tube, which is inserted up to a definite depth in the individual catalyst tube. That portion of the catalyst lying above the desired height is suctioned off. The operation is effected by means of gas (especially synthesis gas or residual synthesis gases), which is recycled without injury to the catalyst. The apparatus and the operation are described by aid of a diagram.