硅酸的

The by-product sodium salt solution can be reacted with fluosilicic acid to produce sodium fluosilicate with lower cost and no three-wastes are produced in the process.

副产物钠盐溶液与氟硅酸反应还可用于制取氟硅酸钠，使氟硅酸钠的生产成本也较低，且无三废产生。

In the wet-process phosphoric acid production from the Hubei phosphate ore, one of the bothersome problems is that potassium fluosilicate and sodium fluosilicate scales are liable to form on the filtration system owing to its high potassium and sodium content, which greatly restrains the application of Hubei phosphate ore.

本文首先采用人工冷却系统模拟湿法磷酸生产的真空过滤系统冷却过程，研究垢物的析出规律，实验结果得知：垢物的主要成分为氟硅酸钠和氟硅酸钾，氟硅酸钠首先析出，结构致密，其次是氟硅酸钾，最后是二水硫酸钙，氟硅酸钠对氟硅酸钾有很强的结晶诱导作用；然后在三种生产中常用的不同的材质钼二钛、聚氯乙烯和聚四氟乙烯表面进行结垢试验，发现聚四氟乙烯表面最不易结垢，而在钼二钛表面最易结垢。

The chemical characteristics were obtained when silicic acid existed in the iron hydrolyzed solution.

实验结果表明：硅酸的存在使Fe水解溶液的pH弛豫特征产生了一定的改变，表现出低OH/Fe摩尔比时的阻聚效应和高OH/Fe摩尔比时初期的促聚效应，并使Fe在溶液中的形态分布及转化特征发生了一定的改变。

The dissolution remarkedly slows down when the dissolved percentage of Ti is in excess of 22% due to lower reactivity of the perovskite and the coverage from silicic acid, of which the former may be the primary reason.

当钛的浸出率超过22%以后，浸出速度显著下降，这是钙钛矿的反应活性差以及硅酸的包裹所致，而钙钛矿的反应活性差可能是浸出速度显著下降的主要原因。

They are liquid sodium silicate, sodium metasilicate pentahydrate , quick-resolving sodium silicate and silica sol.

详细介绍了联产法生产硅酸钠系列产品新工艺及其特点，对工业液体硅酸钠、五水偏硅酸钠、粉状速溶硅酸钠、硅溶胶 4种产品的原材料规格、质量标准、工艺原理、工艺流程等方面进行了论述。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite、hematite、 SFCA、larnite、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

为此，本文对不同组成、不同烧结条件的烧结矿样品进行了系统的显微分析和研究，其主要内容包括：(1)构成低氟烧结矿的主要组元有磁铁矿、赤铁矿、铁酸钙、硅酸二钙、玻璃体和气孔，由于含氟量的降低，枪晶石等含氟矿物并未形成，氟分布在后期凝固的玻璃体中，其中硅酸二钙和铁酸钙受碱度影响较大，硅酸二钙在碱度为1.72～1.96范围内形成较多，铁酸钙在碱度大于1.96含量增多，赤铁矿呈磁铁矿假象，多分布在气孔周围，各组元的生成顺序为：磁铁矿—硅酸二钙—铁酸钙—玻璃体。

Superior chemical stability was found for both glass-ceramics before or after heat-pressing.7. In this experiment, all-ceramic restoratives were made with experimental lithium disilicate glass-ceramic using dental heat-pressing technique.

结果表明：热压铸对实验二硅酸锂玻璃陶瓷的晶相组成和晶体含量无显著影响，热压前后玻璃陶瓷均是以二硅酸锂为主晶相；热压后二硅酸锂晶体尺寸轻度增大，呈现出一定程度的定向排列趋势；热压前后实验二硅酸锂玻璃陶瓷均表现出良好的化学稳定性。7。

MPSs were prepared by using self-made PS, and the processes of MPSs such as polysilicate iron , polysilicate ferric aluminum were optimized, and new type of coagulant with high efficiency and stability (storage time is more than one month) was prepared.

本论文利用自制的聚硅酸进行了金属聚硅酸复合型混凝剂的研制，优化了聚硅酸铁、聚硅酸铁铝等金属聚硅酸复合型混凝剂的制备工艺条件，研制出高效高稳定性的新型混凝剂。

It is shown that polysilicate ferriteand polysilicate ferrite aluminum are efficient for disposal of arsenic wastewater, while polysilictae aluminum can not remove arsenic effectively.

实验结果表明，聚硅酸硫酸铁、聚硅酸氯化铁、聚硅酸硫酸铁铝和聚硅酸氯化铁铝对砷的去除效果均很好，聚硅酸硫酸铝和聚硅酸氯化铝对砷的去除效果不理想。

When the pH value was about 7.0, and the settling time was 30min, and the dosage was 100mg/L, the removal efficiency of arsenic can achieve 80% as polysilicate ferrite and polysilicate ferrite aluminum being used as coagulation reagents.

在pH 值为7，沉降时间为30min，混凝剂投加量达100mg/L时，聚硅酸硫酸铁、聚硅酸硫酸铁铝、聚硅酸氯化铁和聚硅酸氯化铁铝对砷的去除率达80%以上。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。