نتایج جستجو برای: rare earth element
تعداد نتایج: 520409 فیلتر نتایج به سال:
In this review, general information has been given about the recent studies on thin film coating techniques, zinc oxide (ZnO) films and doped with rare earth elements (REE). As a method, sol‒gel method is widely used due to its economical nature. However, it seen that magnteron sputter technique also very popular ease of application. Zinc semiconductor wide band gap easy produce supply. additio...
Khut Copper deposit, located in west of Yazd, is one of the most important skarn deposits in Taft mining area that situated in the middle part of the Urumieh-Dokhtar magmatic belt. Intrusion of Khut granodioritic stock into carbonate component of the Nayband Formation has led to the formation of Cu skarn deposit and different skarn zones. Mass changes has led to mineralogical changes in the dif...
The clinopyroxene composition of two types of alkaline and calc-alkaline gabbros at Piranshahr pluton was investigated in this study. The major oxides variations are similar in all clinopyroxenes of two types of gabbros and are classified as diopside- augite; but trace element compositions are very different in these two groups. The clinopyroxenes of alkaline gabbros are rich in high field stre...
different samples have been prepared from different products in chadormalu iron ore concentrator plant: low intensity magnetite separators concentrate (magnetite concentrate), reverse flotation tail (final hematite concentrate), flotation concentrate (apatite concentrate), final tail (l.i.m.s. tail + reverse flotation concentrate+ apatite flotation tail). the samples were used for rare earth el...
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