Three stages, two seeds technique of seed crystal decomposition
A seed and process technology, applied in the field of three-stage two-seed separation and decomposition process, can solve the problem of not being industrially applied, and achieve the effects of high strength, excellent product quality and saving power consumption.
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[0067] Example 1
[0068] The three-stage two-seed decomposition process of the present invention divides the seed-separation process into four parts: agglomeration decomposition section, seed crystal growth decomposition section, secondary nucleation control and enhanced decomposition. Specific process parameters: seed tank temperature 50°C , Agglomeration tank temperature 70℃, seed ratio 0.35, seed crystal growth decomposition tank temperature 60℃, seed crystal fineness 70μm, seed crystal quantity 500g / l, seed ratio 2.5; enhanced decomposition tank temperature 50℃, seed crystal fineness 25μm, seed crystal amount is 500g / l, decomposition rate 58.5%.
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[0069] Example 2
[0070] The three-stage two-seed decomposition process of the present invention divides the seed-separation process into four parts: agglomeration decomposition section, seed crystal growth decomposition section, secondary nucleation control and enhanced decomposition. Specific process parameters: seed tank temperature 50°C , Agglomeration tank temperature 65℃, seed ratio 0.40, seed crystal growth decomposition tank temperature 60℃, seed crystal fineness 70μm, seed crystal quantity 500g / l, seed ratio 3.0; enhanced decomposition tank temperature 45℃, seed crystal fineness 20μm, the amount of seed crystal is 600g / l, and the decomposition rate is 59.5%.
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[0071] Example 3
[0072] The three-stage two-seed decomposition process of the present invention divides the seed-separation process into four parts: agglomeration decomposition section, seed crystal growth decomposition section, secondary nucleation control and enhanced decomposition. Specific process parameters: seed tank temperature 50°C , Agglomeration tank temperature 60℃, seed ratio 0.40, seed crystal growth decomposition tank temperature 60℃, seed crystal fineness 60μm, seed crystal quantity 600g / l, seed ratio 3.5; enhanced decomposition tank temperature 45℃, seed crystal fineness It is 18μm, the amount of seed crystal is 600g / l, and the decomposition rate is 60.1%.
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