The pretreated zeolite is placed after the waste muffle calcined at 180 ℃ 2h, then allowed to warm to continue calcined at 500 ℃ 4h, fuyang sieve to obtain a modified molecular sieve adsorbent waste. 1.2.2 Evaluation adsorption method (1) simulated water sample preparation method. Formulation containing Ca2 + standard solution of calcium chloride dihydrate (analytical). According to the experimental diluted to different needs of different concentrations. Desiccant adsorption equilibrium likely to change this feature will cause chalking and migration changes after absorbing desiccant such traits. Changes in the appearance of physical properties such desiccant, Chaohu molecular sieve, when the temperature changes, due to its water absorption is usually after the volume increases, the formation of crystals or molecules, molecular sieve desiccant between ions (or molecules) widening the distance , when the ambient temperature rises after losing a portion of the water between the desiccant ions (or molecules) can not be restored to its original distance away. Zeolite | new molecular sieve | Fuyang new zeolite molecular sieves by the Shanghai Limited. Zeolite | new molecular sieve | Fuyang new zeolite molecular sieves are Shanghai Co., Ltd. (www.molsionms.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest information Contact: Mr. Pan.