Diaphragm cell electrolyte concentration
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This post was last edited by sunjl1981 on 2013-1-6 at 23:00. Five days after the new diaphragm electrolyzer came online, the current has increased to 45KA, yet the concentration of the electrolyte is only around 80 g/l. The water level has reached its minimum level, and it still cannot be increased. What should be done in this situation? What are the potential hazards? # ， ， &
There must be a problem in the process of manufacturing your membranes; could it be that the vacuum level wasn’t controlled properly during the adsorption step?
It’s the fleece provided by Jinyan; contact the manufacturer.
Check whether the ratio of chrysotile to amosite fibers and the caustic treatment time meet the requirements, and then contact the manufacturer
This indicates that the diaphragm has not been properly compressed, and it has expanded excessively after being soaked in saltwater. The following method can be used: raise the liquid level to its highest point for about seven days, then quickly lower it to the lowest level. Repeating this process several times will yield some results; I have encountered this situation before (at a concentration of around 40 g/l) and was able to resolve it as well. You can give it a try.
1. If the asbestos fibers remain unchanged, should the effect of temperature on viscosity be considered in order to make some adjustments?； 2. Based on the data, it seems that there is a change in the amount of asbestos fibers used, or there is an issue with the ratio of the lengths of these fibers; it is recommended to increase the processing time ； 3. Water can be added first to compact it, and then adjustments can be made ； 4. The concentration in a normal new tank is also around 90 ； 5. The water level in the electrolyzer should not be kept at a low level for an extended period of time, especially when the membrane in a new electrolyzer is still in an unstable state.
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1. If the proportion of asbestos fibers is correct, then the issue can be addressed from a quantitative perspective; one can try adding the asbestos fibers directly to the electrolytic cell in order to reduce the flow rate of the saline solution； 2. The water level in the electrolyzer should not be kept at a low level for long periods, as this causes significant damage to the membrane and the electrolyzer ； 3. Perhaps the only option is to patiently wait for the electrolyte concentration to reach a situation where it can \"survive by going through adversity\". This post was last edited by yzhms on 2008-4-19 18:14]
1. Use more short fibers. 2. Reduce the salt content in the slurry. 3. Shorten the drying time. 4. Use a pressure diaphragm (raise the liquid level to its maximum for a certain period of time, then lower it immediately); this can be repeated several times
The concentration in diaphragm cells mainly depends on the current and the porosity of the membrane. The main factors affecting porosity are: 1. Pay attention to the ratio of asbestos fibers, with an increase in the proportion of short fibers. 2. Pay attention to the concentrations of NaOH and NaCl in the slurry; the concentrations should not be too low. 3. Pay attention to the causticization time; it can be appropriately extended. 4. Change the beating process by using vacuum tumbling in a storage tank to break up the long fibers. 5. Before adsorption, it is essential to ensure that the slurry is well mixed and free of stratification. 6. If it is a modified membrane, pay attention to the sintering temperature variation curve. 7. After the new tank is in place, check the liquid level at its highest point; check it again after a few days. (This method is best used last.) ) The above are merely personal opinions for reference only.