Issue with the NaCl concentration in brine
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This post was last edited by Du Xiaoping on 2015-11-28 at 18:12. In the brine production section, the NaCl concentration in the final reaction tank is currently between 300–304 g/L. Why can’t this concentration be increased to 305–315 g/L (the required process parameters)? What’s the reason? Dear sea friends, please help. Thank you. :(Production details: 1. The temperature of the brine used for testing should be maintained between 58–62°C. 2. The salt layer in the brine preparation tank is 5–6 meters thick. 3. The sulfate content in the brine should be below 6.5 g/L. 4. The density should be above 1.189. 5. The sodium carbonate content in the water used for testing should be below 0.3 g/L. 6. The dilution water in the pre-reaction tank is not in use. 7. The raw salt comes from an established manufacturer.)
Take a sample of the brine at both the inlet and outlet of each device, doing this in sequence from front to back, and it will be easy to identify the problem. Based on the parameters you provided, there are no issues; the value for sodium carbonate in water, which is the fifth item, is below 0.3 g/l. Does this refer to saltwater or the water used for dissolving salts?
300-304 is quite good; could you modify the process parameters?
The specific gravity is already 1.189, so the concentration must be 310 grams. The chlorate level isn’t high; there’s probably an issue with the analysis
No density test was conducted; based on the data from the operating procedures, the dissolved NaCl is in a nearly saturated state, with a concentration of 305±5 g/l, a temperature of 55–60°C, and a relative density of 1.197
For the salt dissolving tanks we use, how often do you clean the sediment from your salt dissolving barrels? Is the saltwater distributed evenly inside the barrels?
Is it an analysis error? It’s very likely.
The chemical saline contains less than 0.3 g/L of sodium carbonate
If the brine is distributed evenly inside the tank, it’s time to clean out the salt sludge
There may be several reasons for this situation: 1. Deviation in flow occurs； 2. Excessively high flow rate ； 3. High chlorate level ； 4. There is an excessive amount of insoluble substances in the sediment of the salt dissolving tank, and the height of the salt layer is an illusion ； 5. The analysis or standard solution is incorrect ； 6. External water has entered ；