Patent ID: 8968671
Filing Date: 2015-03-03
Classification: B01F,B01J,C07C,C07D

Abstract:
1. A system for mixing ortho-xylene with an oxygen-containing gas, which system comprises an ortho-xylene evaporator vessel connected to be fed with a stream of oxygen-containing gas and provided with a lance projecting into the stream of oxygen-containing gas, which lance is provided with a metal spray nozzle adapted to inject droplets of liquid ortho-xylene into the stream of oxygen-containing gas concurrently with the direction of flow of the stream of oxygen-containing gas, in which the metal at the surface of the spray nozzle, that in use is in contact with the liquid ortho-xylene, is hardened steel obtained by a surface hardening treatment and has a hardness expressed as a Vickers hardness number of at least 200.