PATENT

3604. ----- [STEINKOHLEN-BERGWERK “RHEINPREUSSEN”].  [Production of Lubricants.]  German Patent Appl.  St 60,284, PA 325,783, filed May 2, 1921 (Cl. 12 o-1.01).  FIAT Reel B-196, frames 835-840; PB 83,253.

In preparing lubricants by the polymerization of condensation of unsaturated and/or chlorinated saturated hydrocarbons with or without aromatic hydrocarbons in the presence of HF as catalyst, use is made of aliphatic hydrocarbons with more than 6 C atoms or the hydrocarbons obtained by the hydrogenation of CO with or without the use of pressure.  Examples are presented of the use of (1) the olefin-rich fraction b. 160°-195°, (2) the chlorinated kogasin fraction b. 280°-320°, and (3) the same fraction in mixture with naphthalene and the heavy benzine from the benzine synthesis.  The product has a viscosity of 4.5-6.2 E at 50° in (1) and (3) and 33 E in (2).