Veba-Chemie Aktiengesellschaft

Wilhelm Ester, Deceased

Wilhelm Heitmann

By Brigitte Lovis, Nee Ester, Heir

Margarete Ester, Heir

Wolfgang Ester, Heir

By Wolfgang Ester, Heir

Brigitte Louis Nee Ester, Heir

Improvement in the known process for producing organic cyclic hydroperoxides, which process includes oxidizing a compound of the formula ##STR1## wherein Ar is an aromatic or saturated cycloaliphatic radical and each R is an aliphatic hydrocarbon radical or a hydrogenated bicyclic terpene hydrocarbon hydroperoxide with an oxygen-containing gas at a temperature of about 80.degree.-150.degree. C under a pressure of about atmospheric up to about 10 atms., wherein the product, when produced by this process, has an improved activity on the catalysis of olefin polymerization if the oxidation reaction is halted at the point where the produced hydroperoxide has a concentration in the reaction mass of about one to less than 5%.

Preparation of organic hydroperoxides

Pure C.sub.1 -C.sub.3 alkanols are prepared from crude water containing alcohols in a continuous distillation process which includes an extractive distillation zone into which water and crude alcohols are introduced and from which is removed an impurities stream and a dilute aqueous alcohol stream; an alcohol concentration zone into which is introduced a dilute alcohol stream from the extractive distillation zone from which is withdrawn pure concentrated alcohols, a low boiling impurities stream and a high boiling impurities stream; and an impurities concentration zone into which is introduced the impurities stream from the extractive distillation zone and the high and low boiling impurities streams from the alcohol concentration zone from which is withdrawn high and low boiling impurities and an alcohol containing stream which is recycled to the extractive distillation zone with the crude alcohols. Aqueous alkali solution is injected into the alcohol concentration zone above the point at which the high boiling impurities stream is withdrawn and below the point from which pure concentrated alcohols are withdrawn. In addition, the sump product from the alcohol concentration zone is discarded or neutralized and recycled to the upper portion of the extractive distillation zone.

Continuous distillation process for purifying alkanols

Growing community of inventors

Munich, Georgia

Wilhelm Ester, Deceased