Catalytic oxidation of formamides to form isocyanates
Реферат: CATALYTIC OXIDATION OF FORMAMIDES TO FORM ISOCYANATES ABSTRACT OF THE DISCLOSURE This invention relates to a process for preparing isocyanates from formamides wherein a formamide corresponding to the formula R?(NHCHO)n, where R is an organic group and n is 1 or 2, is oxidized with an oxygen containing gas at a temperature in the range of 300°C to 600°C in the presence of a catalytic amount of copper and/or one or more metals of the Groups IB and VIII of the 5th and 6th period of the Periodic System of Elements to yield the corresponding isocyanate R (NCO)n where R and n have the same meaning as above, and the resultant gaseous isocyanate containing reaction mixture is subjected to a separation process to separate the product isocyanate from water of reaction.
Catalytic oxidation of alkanes into alcohol/ketone mixtures
Номер патента: US4918238A. Автор: Michel Costantini,Jean-Pierre Lecomte. Владелец: Rhone Poulenc Chimie SA. Дата публикации: 1990-04-17.