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      1143.  ------.[I. G. Farbenindustrie, A. G. Alcohols]  [Apparatus for Hydrocarbon Synthesis.]  German Patent Appl. I 73,346, no date (Cl. 12 g).  Auszüge deut. Patent-Anmeldungen, vol. 7, p. 206.

            In the catalytic synthesis of hydrocarbons from CO and H2 tube bundles for conveying the heat of reaction are used, which are closed at 1 end.