The calcium ion level at the outlet of the resin tower is low, while the magnesium ion level is high
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The workshop has a production capacity of 200,000 tons of caustic soda; currently it is operating at 60% of its capacity. There is a problem where the calcium ion levels in the secondary brine exiting the tower are low, while the magnesium ion levels are high. Please ask the experts to provide some insights on this issue
Has a full analysis been done on the raw brine? It would be best to list the specific parameters; how long has this situation persisted? The question is too broad to analyze effectively. What if there are problems with the sample?
Also, is the resin tower two-tower or three-tower, and how often does it need to be regenerated?
There isn’t enough information to determine this; what about the parameters of the raw saltwater (calcium, magnesium, alkalinity, pH after filtration, etc.)? How does chelating resin operate? Whether the regeneration is clean or not, etc
First, conduct a recheck to rule out issues with the equipment. An analysis is then conducted on the relevant parameters of the salt dissolution section and the primary brine section. Analysis can be conducted based on factors such as the pH and temperature of the saltwater; too high a pH or too high a temperature can affect the shape of the magnesium ions as they precipitate. If the particles are small, they are more likely to get dispersed in subsequent processing stages. Additionally, the resin tower can be checked to determine whether there are any leaks in the relevant valves and whether there are issues with the regeneration process.
Could it be a problem with the resin? It’s possible to test the exchange capacity of the resin to check whether it is contaminated
Send out the indicators and take a look, analyze them