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CONCENTRATOR FOR SULFURIC ACID LIQUID, METHOD FOR CONCENTRATING SULFURIC ACID LIQUID, AND METHOD FOR COLLECTING CRUDE NICKEL SULFATE
CONCENTRATOR FOR SULFURIC ACID LIQUID, METHOD FOR CONCENTRATING SULFURIC ACID LIQUID, AND METHOD FOR COLLECTING CRUDE NICKEL SULFATE
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机译:用于硫酸液体的浓缩器,用于浓缩硫酸液体的方法以及用于收集粗硫酸镍的方法
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摘要
PROBLEM TO BE SOLVED: To provide a concentrator for a sulfuric acid liquid that suppresses damage of a heater by concentrating the sulfuric acid liquid.;SOLUTION: A concentrator of a sulfuric acid liquid containing at least calcium includes: a first concentrator (10) for concentrating the sulfuric acid liquid; a heat exchanger (30) for heating the concentrated sulfuric acid liquid in the first concentrator (10) at a temperature lower than a boiling point; and a second concentrator (20) for decompressing the heated sulfuric acid liquid to evaporate water for concentration. By heating the sulfuric acid liquid at the temperature lower than the boiling point, evaporation of the sulfuric acid liquid in the heat exchanger (30) is suppressed and damage to the heat exchanger (30) can be suppressed.;COPYRIGHT: (C)2014,JPO&INPIT
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