论文部分内容阅读
叶蜡石的工业用途叶蜡石属于高岭石族矿物,分子式H_2Al_2Si_4O_(12)(或Al_2O_3·4SiO_2·H_2O),为水化硅酸铝。叶蜡石可做耐火材料、玻璃纤维及陶瓷原料、建筑材料、杀虫剂的掺合料;在硬橡皮、造纸、糖果、油漆等部门用作填充料;与有机结合剂或可塑性物料混合,产物可用于高周波率的电绝缘体。叶蜡石与滑石物理性质极为相似,可以代替滑石一般用途。色泽美观鲜艳的叶蜡石可做雕刻装饰品原料,这类叶蜡石常以产地或颜色命名,著名者如浙江青田的青田石,福建寿山的寿山石,浙江昌化因含辰砂而名之曰鸡血石或昌化石。叶蜡石是含水铝硅酸盐矿物中含水最少的矿物。在加热过程中,因脱水而产生的体积收缩较小,且脱水过程较长,脱水后仍保持原来结晶体结构。通常用生料制成砖坯直接使用。
Pyrophyllite for industrial purposes pyrophyllite belongs to the kaolinite family of minerals, molecular formula H_2Al_2Si_4O_ (12) (or Al_2O_3 · 4SiO_2 · H_2O), hydrated aluminum silicate. Pyrophyllite can be used as refractory, glass fiber and ceramic raw materials, building materials, insecticide admixture; hard rubber, paper, candy, paint and other departments as a filler; and organic binder or plastic material mixed, Products can be used for high frequency electrical insulation. Pyrophyllite and talc physical properties are very similar, can replace the general use of talc. Bright color beautiful pyrophyllite carving decorations can be made of raw materials, such as pyrophyllite origin or color often named, such as the famous Qingtian Qingtian, Zhejiang Shoushan Shoushan stone, Zhejiang Changhua because of cinnabar and the name of the heapstone Or Chang fossil. Pyrophyllite is the mineral that contains the least amount of water in hydrous aluminosilicate minerals. During the heating process, the volume shrinkage due to dehydration is small and the dehydration process is long. After dehydration, the original crystal structure remains. Usually raw materials made of brick used directly.