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,这些矿物质富含高密度的矿物质,例如伊利米特,锆石,左氧烯,独居石和金红石。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.
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 | The CTX is a rugged and portable single-sample countertop 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. |
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.