【摘要】 葫芦岛市位于锦西-哈尔套膨润土成矿带的最南端，为探究葫芦岛膨润土的特性，对葫芦岛的6个膨润土矿进行了研究，通过测定试样的膨胀容、亚甲基蓝吸收量、阳离子交换容量和X射线衍射分析，对葫芦岛膨润土的表观特性、矿物组成、膨胀性能和阳离子交换性等性能进行了评价和表征。研究表明：葫芦岛膨润土矿均为钙基膨润土矿，总体质量较好，大部分膨润土的粒度均匀、自然白度较高，蒙脱石平均含量接近或高于70%。葫芦岛膨润土矿的石英、长石、方解石是主要脉石矿物，矿物组成比较简单，阳离子交换性能较好，在辽西地区膨润土矿中处于中上等地位，具有较强的代表性。然而，辽西膨润土普遍含有方石英，限制了产品的应用范围。更多还原

【Abstract】 Huludao is the starting point of the Jinxi-Hartao metallogenic belt. In order to explore the characteristics of Huludao bentonite, six bentonite mines in Huludao were studied. Crystalline phases,montmorillonite content, swelling property, cation exchange performance of the samples were characterized and evaluated by X-ray diffraction, swelling volume, cation exchange capacity and methylene blue index,respectively. By comparing Huludao bentonite with other bentonites in western Liaoning, the characteristics of bentonite in western Liaoning were summarized. Huludao bentonite belongs to calcium-base bentonite and has the following advantages: high whiteness, high montmorillonite content, simple mineral composition, good cation exchange performance and stable ore quality, which has a strong representativeness in western Liaoning. However, bentonite in the western Liaoning generally contains cristobalite, which limits the application range of the product.更多还原