Abstract 991,384. Storing gases. BRITISH OXYGEN CO. Ltd. April 21, 1964 [April 27, 1963], No. 16650/63. Heading F4P. Compressed gaseous ozone/oxygen mixture containing up to 13% by weight of ozone is stored under a pressure of e.g. 15 atmospheres in a pressure vessel 11 maintained at a temperature appreciably below ambient temperature by a block of solid carbon dioxide 23, and is internally covered with a thin coherent coating which is relatively inert to ozone. The coherent coating may be a phosphate, sulphate, borate, silicate or oxide layer produced by subjecting the vessel to a chemical bath, or electrolytic treatment. Alternatively, the coating may be alumina sprayed on to the vessel. The vessel 11 is preferably mado of stainless steel provided with a pocket 12 containing the solid carbon dioxide and possibly an inert liquid of low freezing point such as a fluorinated hydrocarbon. The pocket 12 is closed by an insulated stopper 16. The vessel 11 is contained in an outer container 13 and the space therebetween is evacuated and filled with insulating power. In a second construction a plurality of cylindrical pressure vessels connected together by a manifold are arranged in a circle within a double-walled insulated container, the block of carbon dioxide being inserted in the centre of the circle.
A METHOD OF STORING A COMPRESSED GASEOUS OZONE/ OXYGEN MIXTURE CONTAINING UP TO 13% BY WEIGHT OF OZONE WHICH COMPRISES THE STEPS OF COATING THOSE PARTS OF THE WALLS OF A METAL PRESSURE VESSEL WHICH IN USE ARE IN CONTACT WITH THE CONTENTS OF SAID VESSEL WITH A THIN COHERENT COATING WHICH IS RELATIVELY INERT TO OZONE, AND THEREAFTER CONFINING SAID COMPRESSED GASEOUS MIXTURE WITHIN SAID PRESSURE VESSEL AT A TEMPERATURE APPRECIABLY BELOW AMBIENT TEMPERATURE.
Claim 2
Independent Claim
75 words
A METHOD OF STORING A COMPRESSED GASEOUS OZONE/ OXYGEN MIXTURE CONTAINING UP TO 13% BY WEIGHT OF OZONE WHICH COMPRISES THE STEPS OF COATING THOSE PARTS OF THE WALLS OF A METAL PRESSURE VESSEL WHICH IN USE ARE IN CONTACT WITH THE CONTENTS OF SAID VESSEL WITH A THIN COHERENT COATING WHICH IS RELATIVELY INERT TO OZONE, AND THEREAFTER CONFINING SAID COMPRESSED GASEOUS MIXTURE WITHIN SAID PRESSURE VESSEL AT A TEMPERATURE APPRECIABLY BELOW AMBIENT TEMPERATURE.