Analysis of the reasons for sub-nanometer failure?
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1. High acetylene temperature; 2. Low process water volume. How do these two factors have an impact? I really can’t figure it out, so please help analyze it. Thank you
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What are the reasons for sodium hypochlorite losing its effectiveness? Our older generation has identified 3 points. But I don’t understand why, and how does it have an impact? 1. The temperature of acetylene gas is high. 2. The amount of process water added is low. 3. The pH is low, resulting in ineffective hypochlorite decomposition. I understand point 3, but I don’t know why for the first 2 points?
One of the reasons for the loss of effectiveness of sodium hypochlorite is that the sodium hypochlorite reacts with sulfur phosphorus, causing it to lose its effectiveness. Second: If the temperature is too high, hypochlorite decomposes and loses its oxidizing capacity, which means the hypochlorite is no longer effective. As for the low amount of supplementary process water-----I’m not sure what that means either? Is it the fact that the amount of water used for cooling acetylene gas is too low, which causes the temperature of the acetylene gas to rise? This in turn leads to an increase in the temperature of sodium hypochlorite, resulting in its decomposition? But the temperature of your acetylene gas is high – how high is it?
The inlet temperature of the cooling tower should not exceed 60 degrees, the outlet temperature must not be higher than 45 degrees, and for water-cooled towers, it must not be higher than 35 degrees
Is decomposition due to high temperature an inherent chemical property?
Another possible reason for the reduced activity due to a low amount of hyposodium solution is insufficient circulation volume (at the same level of effective chlorine), which prevents sufficient reaction with the sulfur and phosphorus present.
It’s just that the outlet of the pump isn’t large enough
By \"low process water volume,\" we mean that we use fresh sodium hypochlorite for preparation; part of this water is utilized, while the other part is the waste sodium hypochlorite resulting from the reaction. The process water referred to here is the water used for preparing fresh sodium hypochlorite. But I still never understood why? ? When recycling some defective waste, attention should be paid to the pH level; it was around 7-8 once. Sometimes, when the flow rate is high, acid needs to be added to the recycling tank. I sometimes wonder why the pH of the recovery tank is high, and why it is related to flow rate. Theoretically, a higher efficiency in the scrubber should result in a higher recovery pH!