Patent ID: 6105631
Filing Date: 2000-08-22
Classification: B01F,C01B

Abstract:
A method of producing a substantially homogeneous compressed gas mixture consisting of sulfur hexafluoride and nitrogen, said method comprising the steps of:pre-mixing sulfur hexaf luoride and nitrogen from separate sources to form an inhomogeneous gas mixture;passing the inhomogeneous gas mixture through a static mixer to a buffer tank;introducing inhomogeneous gas mixture from said buffer tank into a compressor and compressing the gas mixture in said compressor to form a substantially homogeneous compressed gas mixture; andrecycling a portion of said essentially homogeneous compressed gas mixture from the compressor to said buffer tank;said substantially homogeneous compressed gas mixture containing from 3 to 50 volume percent of sulfur hexafluoride and the balance being nitrogen, and said compressed gas mixture being sufficiently homogeneous that the a sample withdrawn from said gas mixture will have a composition within .+-.0.7 volume percent of an ideal mixture of the sulfur hexafluoride and nitrogen.