本文關(guān)鍵詞： 磷石膏 綜合利用 HCl-H_O體系 除雜　出處：《應(yīng)用化工》2017年07期 　論文類(lèi)型：期刊論文

【摘要】：在HCl-H_2O體系中利用溶液法對(duì)磷石膏進(jìn)行除雜,研究溶液pH值、反應(yīng)時(shí)間、固液比及溫度對(duì)磷石膏中可溶性磷和可溶性氟的去除率的影響。結(jié)果表明,HCl-H_2O體系除雜的最佳工藝參數(shù)為:pH=1,時(shí)間2 h,固液比=1∶3 g/mL,溫度103℃。此工藝下,可溶性磷、氟的去除率分別達(dá)到88.73%和93.77%,磷石膏中殘余的可溶性雜質(zhì)含量低至W_(P_2O_5)=0.08%,W_(F-)=0.005%,能夠滿(mǎn)足GB/T 23456—2009中作為石膏建材的要求,且具有經(jīng)濟(jì)可行性。
[Abstract]:Phosphorus gypsum was removed by solution method in HCl-H_2O system. The pH value of solution and reaction time were studied. The effect of solid-liquid ratio and temperature on the removal rate of soluble phosphorus and soluble fluoride in phosphogypsum. The results show that the optimum technological parameters for removing impurities in the system of HCl-H _ 2O are as follows: 1: 1, time 2 h, solid-liquid ratio 1: 3 g / mL, temperature 103 鈩，

本文編號(hào)：1528365