锡酸钠工业生产结晶工艺的研究
发布时间：2018-10-10 06:20
【摘要】：在锡酸钠结晶过程中加入超细晶种诱导可以生产出大颗粒晶状产品,外观得到了改善,保质期延长。最佳晶种制备工艺:真空度为-0.09 MPa,浓缩波美度为1.15°Be′搅拌速度为90 r/min,结晶时间1 h,结晶温度为130℃。最佳结晶工艺:在1.10~1.1°Be′溶液波美度下加入晶种,真空度为-0.08 MPa,晶种加入速度为14 g/s,搅拌速度为50 r/min,结晶时间6 h,结晶温度为80℃。此条件下得到的产品晶体均匀,光泽度好,粒度在220-250μm,保质期由192 d延长至250 d。
[Abstract]:In the process of crystallization of sodium Stannate, superfine seeds can be added to induce the production of large granular crystal products, the appearance has been improved, and the shelf life has been prolonged. The optimum seed preparation technology is as follows: the vacuum degree is -0.09 MPa, the concentration Beautify is 1.15 掳Be', the stirring speed is 90 r / min, the crystallization time is 1 h, and the crystallization temperature is 130 鈩，
本文编号：2260962
[Abstract]:In the process of crystallization of sodium Stannate, superfine seeds can be added to induce the production of large granular crystal products, the appearance has been improved, and the shelf life has been prolonged. The optimum seed preparation technology is as follows: the vacuum degree is -0.09 MPa, the concentration Beautify is 1.15 掳Be', the stirring speed is 90 r / min, the crystallization time is 1 h, and the crystallization temperature is 130 鈩，
本文编号：2260962
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