Sodium nitrate process influence factors - double decomposition reaction Appropriate chemical industry
sodium nitrate is an important nitrate, have a great effect on the industry, the manufacturer of sodium nitrate to the conditions of reaction, crystallization process can control directly affects the formation of ammonium chloride suspension, also relates to the double decomposition reaction can be smoothly.
sodium nitrate ingredients must guarantee system after reaction, crystallization, the liquid falls just in sodium nitrate and ammonium chloride in full online, and not fall on the three kinds of salt saturation point together, otherwise will occur eutectoid of ammonium nitrate and sodium chloride, to separate the mixed crystals is more difficult.
sodium nitrate crystallization temperature and the temperature of the surrounding generally the same, if lower than environment temperature, the quantity of system products although increased, but need to increase the energy consumption; If higher than ambient temperature, the yield of the product is decreased.
sodium nitrate crystal growth rate cannot be too fast, you need to slow sodium nitrate of the crystal growth, the crystal to sink to the bottom of the crystallizer, system to form slurry, otherwise, it is easy to cause the sodium nitrate crystal is too fine, some even are crystal slurry, mixed together with ammonium chloride, separation is very difficult.
sodium nitrate solution will also affect the degree of supersaturation of double decomposition reaction, the degree of supersaturation is the driving force for the crystal growth, the formation of the degree of supersaturation of sodium nitrate in the double decomposition reaction system is under high temperature was concentrated salt solution, and then placed under the low temperature crystallization.
sodium nitrate manufacturers to control the production of various factors, in an optimal process producing sodium nitrate crystallization, and can reduce unnecessary waste and achieve better economic and environmental benefits.