B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
222/69.1
B01F 5/00 (2006.01) B01F 3/12 (2006.01) B05B 7/00 (2006.01)
Patent
CA 1262707
ABSTRACT OF THE DISCLOSURE The present invention provides a method for building up a process pressure in a process line leading to a pressurized reaction or process chamber in the production of a suspension of low viscosity comprising at least one solid and one liquid to be fed to said process line, comprising the feeding of said solid and a part of said liquid to a first drag flow pump, mixing said solid and said part of said liquid in said first drag flow pump to form a suspension of high viscosity, feeding said suspension of high viscosity, necessary for the formation of a material plug downstream of said first drag flow pump for the pressure build- up, to a pressure line downstream said first drag flow pump, the pressure of said suspension at the end of said first drag flow pump being as high or somewhat higher than the process pressure in the process line, conveying that suspension of high viscosity from that pressure line to a second drag flow pump, which is under process pressure, adding the remaining part of the liquid to the suspension of high viscosity in said second drag flow pump and/or said pressure line for production of a suspension of low viscosity, and feeding that suspension of low viscosity to that process line.
480322
Marks & Clerk
Werner & Pfleiderer
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