【摘要】：在錫酸鈉結晶過程中加入超細晶種誘導可以生產(chǎn)出大顆粒晶狀產(chǎn)品,外觀得到了改善,保質(zhì)期延長。最佳晶種制備工藝:真空度為-0.09 MPa,濃縮波美度為1.15°Be′攪拌速度為90 r/min,結晶時間1 h,結晶溫度為130℃。最佳結晶工藝:在1.10~1.1°Be′溶液波美度下加入晶種,真空度為-0.08 MPa,晶種加入速度為14 g/s,攪拌速度為50 r/min,結晶時間6 h,結晶溫度為80℃。此條件下得到的產(chǎn)品晶體均勻,光澤度好,粒度在220-250μm,保質(zhì)期由192 d延長至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 擄Be', the stirring speed is 90 r / min, the crystallization time is 1 h, and the crystallization temperature is 130 鈩，

本文編號：2260962