High purity spherical-normal spherical submicron crystal silica is prepared by using technique of mixing acid corrosion(anhydrofluoric acid and sulphuric acid) and method of mechanical stir from raw powder quartz.
以天然粉石英為基本原料,通過氫氟酸與鹽酸混合酸溶蝕技術和機械強力攪拌處理,制備了高純球形-準球形亞微米晶質(zhì)SiO2材料。
The compositions,properties and preparations of lead-free glasses such as crystal glass,electronic glass,electric vacuum glass,solder glass and solder glass-ceramics are reviewed.
闡述了無鉛玻璃包括晶質(zhì)玻璃、電子玻璃、電真空玻璃、焊料玻璃、微晶玻璃焊料的成分、性質(zhì)、制造過程,指出目前存在的問題和今后發(fā)展的方向。
Study on Mineral Processing of Bameng Cryptocrystalline Magnesite Ore;
巴盟隱晶質(zhì)菱鎂礦選礦試驗研究
On the basis of studying the mineral composition of altered mylonite in zhushanxia uranium deposit,a new type of altered mylonite uranium deposit (U-W coexisting) has been found,and uranium exists as uraninite.
對竹山下鈾礦床中蝕變糜棱巖的礦物成分進行了研究，發(fā)現(xiàn)了一種新型Ｕ－Ｗ共生的蝕變糜棱巖型鈾礦床，鈾礦物主要是晶質(zhì)鈾礦；指出相應的成礦作用為燕山早期（１６５×１０６ａ±）氣熱高溫熱液鈾成礦作用。
Among other things, exposed uraninite-rich granite is rich in silica (SiO2>70%), rich in alkalis (K2O+Na2≈8%) with K>Na (K2O:Na2≈5:3) and rich in uranium.
產(chǎn)鈾花崗巖出露面積大,其中有硅高(SiO2>70％),富堿(K2O+Na2O約為896),鉀大于鈉(K2O:Na2O 約=5:3),鈾含量高,含晶質(zhì)鈾礦的富鈾花崗巖出露。