摘要
对信阳上天梯凝灰岩进行矿物鉴定、化学组成与矿物组成分析、矿物分离提纯、矿物解离度等全方位测试分析,开展针对性的理化测试、应用研究.上天梯凝灰岩具有高硅、富钾、低铁和自然白度高的特征.矿石w(K2O)在7.3％～8.2％之间,远高于国内同类凝灰岩的K2O含量(w(K2O)＜5％),钾长石矿物含量(质量分数)达55％,是凝灰岩中钾的主要赋存矿物,是一种新型"工业岩石"类型.
Abstract
Mineral identification,chemical composition and mineral composition analysis,mineral separation and purification,mineral dissociation degree,and other comprehensive testing and analysis were conducted on the Shangtianti tuff in Xinyang.Targeted physical and chemical testing and application research were carried out.The Shangtianti tuff has the characteristics of high silicon,rich potassium,low iron,and high natural whiteness.The ore w(K2O)ranges from 7.3％to 8.2％,which is much higher than the K2O content of similar tuffs in China(w(K2O)＜5％).The content of potassium feldspar minerals(mass fraction)reaches 55％,making it the main mineral for potassium in tuffs and a new type of"industrial rock".
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