WHILE investigating the macrokinetics of amination of aliphatic alcohols with an act ivated sintered iron catalyst conditions were established which enable us to convert 86% of the standard octan-l-ol used to amines with a rate of 1050 g/1..hr [1]. These high values of conversion of the initial alcohol and high catalyst efficiencies prove that these conditions are close to the optimum. However, sufficiently reliable optimum parameters themselves have not been established. I t is therefore advisable to optimize the interaction of normal aliphatic alcohols with ammonia using sintered iron catalysts under the pressure of a hydrogen-ammonia mixture. The statistical method of planning extremal experiments [2] was used to solve this problem. I t had previously been used successfully [3] for finding optimum conditions of amination of alcohols with a branched carbon skeleton. The s tudy was carried out in a high pressure, continuous and circulatory laboratory apparatus. The layout of this apparatus, methods of experiment, analysis of reaction products and a method of calculating the degree of conversion of initial alcohol to amines were described in former papers [4, 5]. The feed rate of raw materials to the reactor was adjusted and controlled to :[:2.5%. The required temperature in the reaction zone was maintained constant to 4-1 ° . The degree of conversion of the initial alcohol to amines was determined with an accuracy of :t:2.0% abs. In experiments on optimization of amination twice distilled octan-l-ol was used which, after purification had the following properties: b.p. 76.0 ° (5 mmHg), d~ ° 0.8260, n~) ° 1.4297, hydroxyl number 428. Literature data axe: b.p. 76.5 ° (5 mmttg), d~ ° 0.8250, n~ 1.4304 [6]. The calculated hydroxyl number was 431.5. Commercial liquid ammonia and electrolytic hydrogen were also used in the study.