C - Chemistry – Metallurgy – 06 – B
Patent
C - Chemistry, Metallurgy
06
B
52/49
C06B 45/00 (2006.01) B01F 3/04 (2006.01) C06B 21/00 (2006.01) C06B 33/02 (2006.01) C06B 47/14 (2006.01)
Patent
CA 1074122
APPLICATION FOR LETTERS PATENT By Joseph Dean Chrisp Title of the Invention Formation of Foamed Emulsion-Type Blasting Agents Abstract of the Disclosure In the chemical foaming of emulsions to form blasting agents, the gas-generating material (foaming agent), or a component thereof, is introduced into a stream of the emulsion and the stream thereafter delivered into packaging receivers, any work required to be performed on the emulsion after the addition of the gas-generating material thereto, e.g., pumping or mixing, being performed before substantial foaming due to reaction of the gas- generating material, as a rule before more than about 50 percent of the total density decrease attainable by foam- ing, has occurred. The gas-generating material can be added to a stream of fine emulsion and preferably mixed for uniform distribution through the emulsion, or to a stream of coarse emulsion, which is mixed with high shear to convert the coarse emulsion to a fine emulsion, mixing in either case taking place before substantial foaming has occurred. -1-
250563
E.i. Du Pont de Nemours And Company
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