查询词典 phosphate rock

It is reported that phosphate rock raw material for the production of phosphoric acid, phosphate rock the world's total reserves of about 45.78 billion tons.

据悉，磷矿是生产磷酸的原料，目前世界磷矿石总储量约457.8亿吨。

It is the most important solid-liquid reaction that sulfuric acid decomposes phosphate rock in phosphate fertilizer production. By contrast with conventional reaction of acid decomposing phosphate rock, the effects of ultrasonic power, reaction time, and temperature are discussed.

硫酸分解磷酸是磷肥工业中最重要的液固分解反应，本研究从磷矿酸解液—固反应着手，通过对比的方法，探讨常规的液—固反应体系施加超声波后，超声的声强、时间、温度对磷矿酸解的影响。

Mono-calcium phosphate, sulfuric acid and urea were used for simulating the crystallization of calcium sulfate in the reaction of phosphate rock and urea-sulfuric acid.

结果表明，与无尿素的结晶过程相比，尿素使出现结晶的时间延长了150%，但悬浮液密度增加50%，结晶在长度和宽度上均有所增加，特别是宽度上的增长超过50%。

Dicalcium phosphate was formed by acidulation of phosphate rock with hydrochloric acid, and mixed with ammonium sulfate to obtain NP fertilizer product by decomposing reaction, the product is almost water soluble one.

按生成CaHPO4化学计量加入盐酸，反应完成后，加入硫酸铵进一步转化CaHPO4和CaCl2得到无水氮磷肥，该肥料中的磷几乎全部以水溶性P2O5存在。氮磷肥可作为基肥生产三元复混肥。

The conditions of low analysis phosphorous fertilizer's manufacture, use and resources utilization were studied base on the inquisitional and statistical data. It shows that the inconsistency between the steady outputs of low analysis phosphorous fertilizer and the rapid demand of all kinds of nutrient for agricultural production can increase the market room of low analysis phosphorous fertilizer. It also indicates that the inconsistency between the phosphate demand of low analysis phosphorous fertilizer and the usability of phosphate rock can bring great development in future.

基于农户调查和统计数据，对我国低浓度磷肥的生产分布状况、使用状况、资源利用状况的分析表明，低浓度磷肥产量的徘徊不前与农业生产对中量元素需求增加的矛盾将拓展低浓度磷肥的市场空间；生产低浓度磷肥适用的磷矿品位与我国磷矿资源条件的吻合，使低浓度磷肥在未来有很大的发展空间。

A new defluorination idea is presented. During the process of producing phosphoric acid with chlorhydric acid and phosphate rock, the extraction reaction of the phosphate rock is accompanied with the defluorination reaction. Feed-grade calcium hydrogen phosphate according with international standard can be made by filter and neutralization without any deflourination agent.

采用全新的脱氟理念，在使用盐酸与磷矿制取磷酸的过程中，磷矿的浸取反应与除氟反应同步进行，在不添加任何除氟剂的条件下，浸取液经过过滤，中和，就可以制出符合国标要求的饲料级磷酸氢钙。

The research progress on partially acidulated phosphate rock ,coated phosphate fertilizer and carried phosphate fertilizer at home and abroad are described.

详细探讨了部分酸化磷肥、包膜磷肥和载体磷肥的国内外研究现状和进展，指出磷肥增效技术的研究和应用对我国农业可持续发展、节约磷矿资源和保护环境具有重要意义。

The phosphate degradation was studied when Fused Magnesium Phosphate, Single-super Phosphate and Partially Acidulated Phosphate Rock were applied in two kinds of soils.

对钙镁磷肥、过磷酸钙和部分酸化磷肥在河南郑州西岗沙土和河南西华县潮土中的退化情况进行了研究。

On the basis of analyzing flotation principles of phosphate rock ,the plan of using the acidic waste water in wet phosphoric acid plant instead of sulfuric acid to float low content phosphate rock was put forward,and the process parameters was determined by experiments.

通过对磷矿浮选原理的分析，提出了利用湿法磷酸工厂中洗涤磷石膏渣的酸性废水代替传统的硫酸浮选低品位磷矿的方案，并通过实验确定了工艺参数。

Has completed major projects including the world-famous giant white horse in Panzhihua City, vanadium and titanium magnetite, vanadium and titanium magnetite red grid, Lala Copper Mine, the largest long-Salt Salt Group, the Duke of Zhou Spa, Luofu Spa, Hai Luogou Spa , Sino-foreign joint ventures, wholly-owned cement with limestone, Chongqing Municipality in Yangsan, Yong-rong, Tianfu, South-tong, pine species, Sichuan climbing coal, can be wide, bamboo and other mining bureau of coal mine owned a large number of small and medium-sized coal mine restructuring , The continuation of Nanchuan bauxite, gold agate shell, Guizhou Hezhang siderite, Fuquan phosphate rock and phosphate rock Xundian Yunnan, Tibet, such as gold sand.

已完成的主要项目包括世界著名的攀枝花市白马特大型釩钛磁铁矿、红格釩钛磁铁矿、拉拉铜矿、久大盐业集团盐矿、周公山温泉、罗浮山温泉、海螺沟温泉、中外合资、独资水泥用石灰岩、重庆市中梁山、永荣、天府、南桐、松藻、四川攀煤、广能、达竹等矿务局所属煤矿、大量中小型煤矿改制、延续、南川铝土矿、玛瑙壳金矿、贵州赫章菱铁矿、福泉磷矿、云南寻甸磷矿、西藏砂金矿等。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐