1826.  KELLOGG, M. W., CO. (International Hydrocarbon Synthesis Co.). [Hydrocarbon Synthesis.] French Patent 866,360, no date. Schmidt, J., Das Kohlenoxyd. Akad. Verlagsgesell., Leipzig, 1950, p. 159.

A liquid medium is introduced at numerous points of the reaction zone.

See British Patent 516,352 (abs. 1208), French Patent 855,515 (abs. 1217), and Italian Patent 374,321 (abs. 1591).