Process for preparing ferrous fumarate
The invention discloses a process for preparing ferrous fumarate.The process includes injecting purified water into a neutralization solution dissolving tank, then injecting sodium carbonate into the neutralization solution dissolving tank, continuing to inject fumaric acid into the neutralization s...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a process for preparing ferrous fumarate.The process includes injecting purified water into a neutralization solution dissolving tank, then injecting sodium carbonate into the neutralization solution dissolving tank, continuing to inject fumaric acid into the neutralization solution dissolving tank, carrying out neutralization reaction to obtain neutralization solution with a PH (potential of hydrogen) value reaching 6.0-6.5, and feeding the neutralization solution into a neutralization solution overhead tank by the aid of a neutralization solution pump via a filter for standby application; injecting ferrous sulfate and purified water into a ferrous sulfate dissolving tank according to a mass ratio of 1:1.89, and stirring and dissolving the ferrous sulfate and the purified water; arranging the neutralization solution in the neutralization solution overhead tank into a reaction kettle, heating the neutralization solution until the neutralization solution is boiled, continuously adding f |
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