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1)  purified phosphogypsum
精制磷石膏
1.
Production of purified phosphogypsum by use of idle equipment;
利用闲置设备生产精制磷石膏
2)  sulfuric acid production from phosphogypsum
磷石膏制硫酸
3)  ardealite
磷石膏
1.
Feasibility Study on Application of Ardealite in Rural Road Pavement Construction;
磷石膏应用于农村公路路面建设的可行性研究
2.
Research on Performance of Fly Ash-Cement with Ardealite
磷石膏二灰碎石性能研究
3.
By using ardealite as the base material,with admixture of composite materials such as fine slag powder and cement,experiment was conducted in laboratory for the process recipe,such that the gypsum product has reached the softening coefficient of waterproof products,and is applied in practice.
应用磷石膏为基料,掺加矿渣微粉、水泥等复合材料,在实验室进行工艺配方试验,使石膏制品达到防水产品的软化系数,并将其应用于实践。
4)  phosphorus gypsum
磷石膏
1.
Effect of polished ceramic tiles flotsam and phosphorus gypsum on calcinations and petrographic configurations of Portland cement clinker;
陶瓷抛光砖废料和磷石膏对硅酸盐水泥熟料煅烧及其岩相结构的影响
2.
The production of sulphoaluminate cement clinker with phosphorus gypsum as raw material;
磷石膏作原料试生产硫铝酸盐水泥熟料
3.
The mechanism of saline and alkaline soil amelioration with phosphorus gypsum was introduced.
介绍了磷石膏对盐碱土的改良机理,结合对天津经济技术开发区的盐碱地改良试验介绍了磷石膏的施用方法,并分析了其改良的效果(包括土壤的化学性质,物理性质等),得出了磷石膏能有效的对盐碱土壤进行改良,操作方便,并能提高土壤肥力的结论。
5)  Phosphogypsum [,fɔsfə'ɡipsəm]
磷石膏
1.
Discussion about Pretreatment and Resource Recovery of Phosphogypsum;
磷石膏的预处理及其资源化途径
2.
Disposal standard of phosphogypsum and tentative disposal ideas for the gypsum stack;
磷石膏处置标准与磷石膏堆场处置设想
3.
Experiment study on the production of sulfuric acid integrated with cement by new reducing agent from phosphogypsum raw material;
磷石膏生产硫酸联产水泥用新型还原剂的实验研究
6)  phosphorous gypsum
磷石膏
1.
Study on the palletizing process for the use of phosphorous gypsum as cement retarder;
磷石膏作水泥缓凝剂及其成粒工艺研究
2.
Experiment on the utilization of phosphorous gypsum as cement retarder;
改质磷石膏作水泥缓凝剂的试验
3.
Preparation of iodide ion-selective electrode and its application on the detection of iodine content of phosphorous gypsum;
自制碘离子选择性电极及磷石膏中碘的测定
补充资料:磷石膏
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性质:制取湿法磷酸时副产的一种含磷以硫酸钙为主的固体残渣。是一种主要的化工固体废物。国外磷石膏被利用来制硫酸联产水泥,这是磷石膏综合利用的最主要途径,不同的生产工艺可分别获得二水石膏(CaSO4·2H2O),或半水石膏(CaSO4·1/2H2O)。磷石膏除含硫酸钙以外,还含有未分解的磷矿,与石膏共晶的磷酸氢钙(CaHPO4·2H2O)、游离磷酸、酸不溶物和氟硅酸盐等。它可直接用作填充剂、盐碱性土壤的改良剂,经净化除去氟、分离出游离P2O5后可代替天然石膏作建筑材料和水泥缓凝剂,以及用作制取硫酸、水泥、硫酸铵的原料。

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