| 摘要 |
Mixing apparatus comprising a vessel having a centrally disposed vertical draft tube and a centrifugal impeller at the lower end of the draft tube. A plurality of vertical heat exchanger tubes surround the draft tube. Ports are provided for the inlet of raw material and the outlet of product. The impeller draws liquid down through the draft tube, mixes it in an area of turbulence below the impeller and forces it up the heat exchanger tubes. Materials react in the heat exchanger tubes as in a plug flow reactor and elsewhere in the vessel the liquids mix and react as in a back mix reactor. The equipment is usable for continuous as well as batch operations.
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