| 摘要 |
PROBLEM TO BE SOLVED: To provide a ferric polysulfate production apparatus which includes a hermetic type reaction apparatus easy to handle and operate and is capable of automatically controlling the maintenance of pressure, the supply of oxygen, the supply of a catalyst, etc., and has an ejector. SOLUTION: This production apparatus consists of the hermetic type reaction apparatus 1 which has a gas space in the upper part, the ejector 2 which has a gas suction pipe 3 and circulating pipe 15 communicating with this space, a raw material supply pipe 9 for ferrous sulfate, etc., an oxygen supply pipe 7, an oxygen flow meter which is installed to this oxygen supply pipe and transmits a measured value to a central arithmetic unit 6, an oxygen control valve which controls an oxygen supply rate by the signal from this central arithmetic unit and is installed to the oxygen supply pipe which executes oxygen supply at the time of ending reaction, a pressure gage which transmits the measuring value of the gas space to the central arithmetic unit, a nitrite soln. catalyst supply pipe 4, a flow rate measurement and control valve which is installed to this nitrite soln. catalyst supply pipe, measures the flow rate, transmits the measured value to the central arithmetic unit and controls the flow rate by the signal from the apparatus, the central arithmetic unit, etc.
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