Patent ID: 7976811

Claim:
A process for the production of a reaction product comprising more than 99% by weight of P 4 O 6 by reacting oxygen, or a mixture of oxygen and an inert gas, with gaseous or liquid phosphorus in a molar ratio of phosphorus (P 4 ) to oxygen (O 2 ) of 1:2.7 to 1:3.3 to generate the reaction product in a reaction unit, keeping the obtained reaction product in said reaction unit at an average temperature in the range of 1600 and 2000 K by removing the heat created by the exothermic reaction of phosphorus and oxygen, and maintaining a residence time of at least 1 second of the reaction product passing the reaction unit, then forwarding the reaction product to one or more quenching unit(s) where it is quenched to a temperature of below 700 K where no essential decomposition of the reaction product occurs, wherein the reaction product is purified from byproducts.