Heavy Mineral Sands, Frack Sands, and Silica Sand
Introduction
Mineral Sands: Innovative Analysis of Small Grains with Big Importance
稀有且有价值的重型矿物沙提供对现代经济至关重要的资源。重型矿物沙子是古矿石，海滩或河流沉积物，富含高密度的矿物质，例如伊利米特，锆石，leucoxene，leucoxene，lonazite和金黄色矿石。较不常见的石榴石，磁铁矿，蓝宝石，钻石和星状岩也从重型矿物沙子沉积中开采。古代环境的自然流体动力过程按密度对沙子进行了分类，这也可以在现代海滩上视为深色砂层。在工业过程和产品本身中，重矿物沙被用作原料。必威东盟体育锆石用于核反应堆中的对照棒。金红石是白色油漆的钛的主要来源。一些沙子还用作油气井中的液压压裂的支撑剂，并用作高纯硅的来源。正在积极探索从矿物沙中提取稀土元素的可能性。
所有工业必威东盟体育矿产利用砂沉积s relies on reliable chemical and textural classification of deposits. Bruker has partnered with industry leaders and government research institutes to pioneer new methods for heavy mineral sands assessment, grade control for sand projects, and process control during sorting and processing.
Elemental Assay
Elemental Assay with X-ray Fluorescence
X射线荧光光谱（XRF）提供了用于矿物沙的元素测定的关键方法之一，用于质量评估和等级控制。重矿物砂的元素分析是证明发现和确认产品流中的级别的关键步骤。Bruker的元素分析仪可以通过矩阵匹配的校准对特定的沉积物进行校准，并定制以满足任何分析工作流程的需求。从开挖站点的便携式分析仪到中央实验室分析，布鲁克（Bruker）是您的分析成功的合作伙伴。
探索XRF选项
| S1 TITAN 800 | Portable XRF | Portability and power define the S1 TITAN, with a rugged case, Titan Detector Shield™ and GeoExploration calibration. Portable XRF is ideal for on-site analysis, exploration, and core scanning. |
| CTX | 台面XRF | CTX是崎岖和便携式single-sample计谋ntertop XRF with battery backup, safety interlocked lid, Titan Detector Shield™ and push-button operation that is ideal for quick-look grade control and process control. |
| S2 PUMA | Benchtop ED-XRF | S2 PUMA系列2是实验室ED-XRF分析的标准，配备了直观的TouchControl™界面和XY机器人多样本或旋转木马样品更换器。 |
| S6 JAGUAR | Benchtop Sequential WD-XRF | S6 Jaguar在紧凑的软件包中提供WD-XRF性能，非常适合任何实验室分析。 |
| S8 TIGER | Sequential WD-XRF | The S8 TIGER Series 2 sequential WDXRF provides outstanding superior analytical performance for the most demanding mineral and mining applications. |
Liberation and Comminution
Save Energy by Calculating the Degree of Liberation
腐败过程是采矿价值链中最能源密集型阶段之一。矿物解放分析用于通过计算样本的解放程度来优化此过程。解放是目标矿物阶段从其周围矩阵中的自由度。自动矿物学将扫描电子显微镜（SEM）与能量色散光谱（EDS）相结合，以快速，准确地量化样品中的矿物质纹理，并计算目标矿物的锁定程度。Bruker Amics自动化矿物学平台正在领导该行业，最近在紧凑型或桌面SEMS上的软件和应用程序的价格和应用都取得了进步；现在，任何大小的操作都可以访问自动化矿物学。
Quick-look Textural Analysis
A New Automated Chemical and Mineral Mapping Method for Analysis of Mineral Sands
重矿物沙的经济矿床等级低，目标矿物颗粒的典型值在1％至3％之间。这使探索复杂化，因为沉积物的低度外围可能低于XRF或XRD的检测极限。每个存款的独特性需要特定的处理方法，通常需要复杂的密度分离设备。沉积物纹理的详细光学或化学表征成为探索，加工工厂设计以及持续的等级控制和存款管理的重要因素。Micro-XRF正在成为快速矿物识别和纹理评估的新方法。该方法的一些关键特征：
TheM4 TORNADOis used to collect an elemental map of the sample. An X-ray beam of ~18µm is used to map representative samples that have been scattered on carbon tape. No epoxy, polishing, or carbon coating is required
X-ray maps can be quantified and used to calculate a pseudo-bulk concentration or the percent abundance of individual mineral grains
TheM4 TORNADO AMICSautomated mineralogy software may be implemented to match X-ray point measurements to minerals. A generated mineral map can be used to calculate modal mineralogy, grain size abundance by mineral, and other properties.
