【摘要】 目前融雪剂主要有两大类,第一类是氯盐系,通常指氯化钠、氯化钙、氯化镁、氯化钾等,其融雪效果好,原料易得,价格便宜。第二类是非氯盐有机物系,通常指醋酸钙、醋酸镁、醋酸钾和特殊有机物等为主要成分的融雪剂,这类融雪剂冰点高,融雪效果较差,价格昂贵不易推广,只局限于机场、跑道、桥梁等特殊地段使用。随着各地区对环境保护力度的加大,出现混合型融雪剂,其在上述两类融雪原料中添加缓蚀剂,以减小对道路、设施、植被、土壤的侵蚀。利用盐湖提钾后的尾矿氯化镁（MgCl₂·6H₂O）在110℃¹27℃干燥后作为融雪原料,研究不同低温段的融冰效果,与传统融雪剂氯化钠的融冰能力进行对比,得到了理想结果,为尾矿氯化镁开辟了新的利用方向。更多还原

【Abstract】 Currently there are two major categories of deicing salt. The first category is chloride system,such as sodium chloride,calcium chloride,magnesium chloride,potassium chloride,etc.,with good effect of snow-melting,cheap and readily available raw materials. The second category is often referred to the organic achloride systems,with calcium acetate,magnesium acetate,potassium acetate,or other special organic matter as the main ingredients. Due to high freezing point,poor effect of snow-melting and expensive,achloride deicing salts are confined to use in some special zones,including airport,runway and bridge,and not easy to promote. With the higher requirement on environmental protection,new blended type snow-melting agents with some inhibiters added to decrease the corrosion of roads,facilities,vegetation and soil,etc.,have been highlighted. In present paper,the tailing（MgCl₂·6H₂O） of potassium chloride production from salt lake were dried at 110-127 ℃ and used as the raw materials. The deicing effect at different temperature ranges were studied,comparing with snow-melting capacity of the traditional agent sodium chloride,ideal snow-melting results were gotten. The present work shows a new potential direction for tailing magnesium chloride use.更多还原