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1)  vanadium corrosion
钒腐蚀
1.
The vanadium-containing fuel oil can cause serious high-temperature corrosion of facilities during combustion, particularly containing sulfur and sodium as impurities in the residual oil, which is usually called as vanadium corrosion.
含钒燃油在燃烧时能引起高温设备的腐蚀,尤其当燃油中还含有硫、钠等杂质时对设备的腐蚀破坏更为严重,这就是通常说的钒腐蚀
2)  vanadium attack
钒灰腐蚀
3)  corrosion [英][kə'rəuʒən]  [美][kə'roʒən]
腐蚀
1.
Reason and Improvement of Corrosion in Saturator LittleMother Liquid-Pipe Line;
饱和器小母液管线腐蚀过快的原因分析及改进
2.
Corrosion and Anticorrosion method of Steam Return Pipeline in Oil and Gas Gathering and Transporting Station;
油气集输站蒸汽回水管线腐蚀问题及对策
3.
Application of Gray Relation Analysis for Factor Corrosion of Casing in Oil Well;
灰色关联分析法在油井套管腐蚀评价中的应用
4)  etching [英]['etʃɪŋ]  [美]['ɛtʃɪŋ]
腐蚀
1.
Experimental Research of Higher Magnetically Enhanced Reactive Ion Etching;
强磁场增强反应离子腐蚀实验研究
2.
On the Convex Corner Etching of Silicon Mesa Structure;
硅台面结构凸角腐蚀原因探析
3.
Dimension of convex corner compensation and a newmethod of avoiding corner undercutting in etching of Si;
硅的凸角补偿尺寸及腐蚀中避免削角的新方法
5)  Erosion [英][i'rəuʒən]  [美][ɪ'roʒən]
腐蚀
1.
The Erosion and Repair of Steam Ejector;
蒸汽喷射器的腐蚀与修复
2.
Application of 08Cr2AlMo's Anti-erosion to H_2S;
抗H_2S腐蚀的08Cr2AlMo材料应用
3.
Study on the erosion of inorganic flocculant polyferric chloride;
无机高分子絮凝剂聚合氯化铁腐蚀特性的研究
6)  Erode [英][ɪ'rəʊd]  [美][ɪ'rod]
腐蚀
1.
Study on the eroded status of equipment pipeline by PET industrial waste water;
PET工业废水对设备管线腐蚀状况的分析
2.
Review of concrete sewer erode issue induced by hydrogen sulphide in wastewater systems in china;
硫化氢导致的混凝土污水管腐蚀机理及预防措施
3.
Application of Computer Technique in Analyzing Resisting Erode of Metal Packaging Material;
计算机技术在金属包装材料抗腐蚀性能分析中的应用
补充资料:钒磷铁矿提钒


钒磷铁矿提钒
extraction of vanadium from the bear vanadium phosphosiderite

和94%。fantintiekuang tifan钒磷铁矿提钒(extraetion of vanadium frombear vanadium phosphosiderite)以含钒磷铁矿为原料制取五氧化二钒的帆提取方法。主要包括钠化焙烧和湿法漫出两道作业。直接用作提饥原料的是含饥磷铁。 含钒磷铁是饥磷铁矿电炉生产单质磷和磷肥的副产品。钒磷铁矿分布在美国爱达荷、蒙大拿、怀俄明、犹他等州,含Pz05 24%~32%、V:O。0.267%~0.625%和少量的铬、镍和钥等。美国克尔麦吉(Kerr-MeGee)化学公司所用的含钒磷铁含饥3.26%~5 .2%、磷24.7%~26.6%、铁59.9%一68.5%、铬3.4%一5.7%、镍。.84%~1%。先将含钒磷铁磨至粒度小于。.42mm,配入1.4倍纯碱和。.1倍的食盐在回转窑中于1043~lo63K温度下焙烧,钒便转变成水溶性的钠盐。熔烧块在加热到沸腾的水中浸出,钒、铬、磷均溶入浸出液。浸出浆液经过滤处理。滤液冷却结晶析出磷酸钠晶体,用离心机分离。晶体中如仍含有钒和铬,可用水重溶后再结晶分离,直到获得合格的磷酸钠(NaaPO;)晶体产品。若Na3PO‘结晶母液含磷高于0. 989/L时则要加入CaclZ,使其生成磷酸钙沉淀,然后水解回收钒。随后往母液中加入硝酸铅,沉淀出铬酸铅。此工艺的钒、铬和磷的回收率分别为85%、65%
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