Carbon dioxide product and method of manufacture

Details Carbon dioxide product and method of manufacture Carbon dioxide product and method of manufacture

F - Mech Eng,Light,Heat,Weapons

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F25J 1/00 (2006.01) C01B 31/20 (2006.01) C01B 31/22 (2006.01) C09K 5/06 (2006.01)

Patent

CA 1067009

CARBON DIOXIDE PRODUCT AND METHOD OF MANUFACTURE ABSTRACT OF THE DISCLOSURE This invention relates to a novel carbon dioxide product comprising a pumpable slurry consisting of finely divided particles of solid phase carbon dioxide dispersed in liquid phase carbon dioxide in which the solid particles are free flowing, i,e. do not agglomerate on standing for periods of time suffi- cient to permit beneficial commercial use of the product. The slurry is produced by withdrawing gaseous carbon dioxide at a controlled rate from a vessel containing liquid carbon dioxide at the temperature and pressure conditions of the triple point while vigorously agitating the liquid, to produce solid carbon dioxide particles in the liquid. The rate of formation of the solid is controlled to produce small, finely divided particles of solid carbon dioxide rather than large pieces.

171520

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