PATENTS

3065.----- [RUHRCHEMIE, A. G.]  [Process for Producing Chlorinated Paraffin Hydrocarbons.]  German patent Appl. --, R 699, filed Jan. 13, 1944.  TOM Reel 37, bag 3,451, item 36, 3 pp.

In producing chlorinated paraffin hydrocarbons that are virtually free from unreacted paraffin, 1-1.5 mols of Cl are taken up per mol of hydrocarbon, whereby the chlorination is performed in known manner with elementary Cl at temperatures slightly > the melting point of the hydrocarbon.  Example:  A synthetic table paraffin obtained by the catalytic hydrogenation of CO had an average molecular weight of 380 and a solidifying point of 250.  It was treated with Cl gas 100°-120° with rapid stirring until the uptake of Cl measured 24.3% or 1.3 mol per mol of paraffin.  In the end product only 3.8% of unattacked paraffin was determined by the acetone method.