Phosphorite - Wikipedia
Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals. The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% [1] to 20% phosphorus pentoxide (P 2 O 5). Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more ...
Phosphate Rock Statistics and Information | U.S. Geological …
Phosphate rock minerals are the only significant global resources of phosphorus. The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products.
磷酸岩 - 百度百科
英文名为PHOSPHATE ROCK 。 分子式：3Ca3 (PO4)2·CaR2。 [1] 磷的物理性质: 游离态磷有 白磷 、 红磷 和 黑磷 三种同素异型体. 分子是由四个磷原子构成的正四面体.键角60°. 白色蜡状, 因常带有黄色, 有叫黄磷. 难溶于水,易溶于非极性溶剂如CS2，有剧毒 (0.01g―0.06g致命)，着火点40℃ 所以少量的白磷保存在冷水； 黑色有 金属光泽 的晶体, 它是用白磷在很高压强和较高温度下转化而成的磷, 使用价值不大。 磷酸岩多产于沉积岩，也有产于变质岩和火成岩，除个别情况外，矿 …
胶磷矿 - 百度百科
胶磷矿（Phosphate rock）是以磷酸盐成分为主的含有少量Si、Al、Fe等元素的集合体。 胶磷矿严格的讲不是矿物，没有一定的晶体结构，更谈不上有固定的分子式。 磷块岩的主要含磷矿物为碳氟磷灰石。 其中磷酸盐高度分散，几乎不形成良好规则的结晶，一般有两种形式：一种具有微细晶粒的集合体，呈泉体状，皮壳状；另一种为“胶状”的非晶质集合体，俗称“胶磷矿”，是磷块岩中最主要的一种产状，其P2O5理论含量在41～42%之间。 [1] 胶磷矿一般含P2O539.5%左右。 非晶 …
Phosphate Rock - Minerals Education Coalition
The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world.
磷块岩 - 百度百科
【性质】 磷块岩是一种以碳氟磷灰石为主要矿物组分的沉积磷矿，脉石矿物有石英、玉髓、方解石、白云石、水云母、高岭石、海绿石及有机质等。 颜色呈黄褐、绿褐、浅灰、深灰或黑色。 硬度2～4，密度2.8～3.0g/cm3。 碳氟磷灰石有两种形态：一种是具有微细晶粒或隐晶质呈草莓状、葡萄状、皮壳状的集合体，另一种为非晶质或显微隐晶质呈胶体外貌的集合体，俗称“胶磷矿”，后者是磷块岩中最主要的一种形态。 碳氟磷灰石用肉眼很难辨认，若在磷块岩上滴上含钼酸铵的 …
Phosphate mineral - Wikipedia
Phosphate minerals are minerals that contain the tetrahedrally coordinated phosphate (PO3− 4) anion, sometimes with arsenate (AsO3− 4) and vanadate (VO3− 4) substitutions, along with chloride (Cl −), fluoride (F −), and hydroxide (OH −) anions, that also fit into the crystal structure.
Phosphorite | Definition, Formation, & Uses | Britannica
phosphorite, rock with a high concentration of phosphates in nodular or compact masses. The phosphates may be derived from a variety of sources, including marine invertebrates that secrete shells of calcium phosphate, and the bones and excrement of vertebrates.
Properties, Composition, Uses, Deposits - Geology Science
2023年11月24日 · Phosphorite is a sedimentary rock that contains a high concentration of phosphate minerals. It is the primary source of phosphorus, an essential element for life on Earth. Phosphorite deposits are formed over geological time through the accumulation of marine organic debris and phosphate-rich sediments
Phosphate rock formation and marine phosphorus …
2011年8月1日 · Phosphate rocks, also referred to as phosphorites, are sedimentary deposits with high phosphorus (P) concentrations. These rocks are one of the primary ore sources for P (Fig. 1), which in turn is a critical and non-renewable element for fertilizer production, upon which global fertility depends.
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