Two stage batch liquefaction process and apparatus

Details Two stage batch liquefaction process and apparatus Two stage batch liquefaction process and apparatus

C - Chemistry, Metallurgy

03

B

49/53

C03B 5/235 (2006.01) C03B 3/02 (2006.01) C03B 5/24 (2006.01)

Patent

CA 1224925

ABSTRACT Liquefying of pulverulent batch materials (e.g., glass batch) is carried out in two stages. The first stage utilizes extended gas/solid contact to heat the materials to an intermediate temperature, and may recover waste heat. The second stage rapidly liquefies the material in a cavity lined with the batch material, and may employ substantially nitrogen-free heat sources. Another aspect involves maintaining a wet condition in the first stage to entrap particulates.

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