钠型斜发沸石对高钙苦卤中钾离子的吸附研究

Adsorption behaviors of Na-Y clinoptilolite to K^+ from bittern containing high Ca^(2+)

Adsorption behaviors of Na-Y Clinoptilolite(Na-Y-C)to K+from the bittern containing high Ca2+were investigated.It was found that Na-Y-C also showed satisfactory adsorption selectivity to K+in the bittern containing high Ca2+.The influences of pH,temperature and initial concentration on the adsorption of K+were remarkable.At pH 6.0 and 20℃,adsorption rate of Na-Y-C to K+was 85.96%.The adsorption rate of K+was decreased with the increase of temperature.And the adsorption capacity of K+was increased with the increase of initial concentration of K+.Adsorption column could easily be regenerated by 0.1mol/L HCl and saturated sodium chloride solution after adsorption of K+.And that be reused in production process.Thus Na-Y-C can be used as a adsorbent for recovery K+from the bitter containing high Ca2+.

Adsorption behaviors of Na-Y Clinoptilolite（Na-Y-C） to K^＋ from the bittern containing high Ca^2＋ were investigated. It was found that Na-Y-C also showed satisfactory adsorption selectivity to K^ ＋ in the bittern containing high Ca^2＋. The influences of pH, temperature and initial concentration on the adsorption of K^＋ were remarkable. At pH 6.0 and 20℃, adsorption rate of Na-Y-C to K^＋ was 85.96%. The adsorption rate of K^＋ was decreased with the increase of temperature. And the adsorption capacity of K^＋ was increased with the increase of initial concentration of K^＋. Adsorption column could easily be regenerated by 0. 1 mol/L HCI and saturated sodium chloride solution after adsorption of K^＋. And that be reused in production process. Thus Na-Y-C can be used as a adsorbent for recovery K^＋ from the bitter containing high Ca^2＋.