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- The causes for the low output of fluorosilicic acid, the byproduct from the phosphoric acid unit, are analyzed. 摘要分析了磷酸装置副产品氟硅酸产量偏低的原因。
- A new process for producing cryolite from fluorosilicic acid co-produced in medium and small-sized phosphate fertilizer plants is introduced. 介绍了利用中小磷肥厂副产的氟硅酸制冰晶石的新工艺,以低浓度的氟硅酸和碳酸氢铵、硫酸铝、硫酸钠为原料制取冰晶石,并副产硫酸铵和白炭黑。
- Abstract: the iodine is extracted from fluorosilicic acid solution by carbon tetrachloride after the iodine ion is oxidized to the free iodine. The oxidant B is adopted through sifting oxidants. 摘要对氟硅酸提碘过程的氧化剂进行选择研究,结果表明,对碘回收率而言氧化剂B较好。
- A patent for fluorosilicic acid production by adsorption of silicon tetrafluoride with pressure water is described in the production of wet-process phosphoric acid or phosphate fertilizer. 介绍一种在湿法磷酸或磷肥生产过程中用水吸收四氟化硅制备氟硅酸的专利技术。
- Cryolite is produced from low-concentration fluorosilicic acid and ammonium bicarbonate,aluminum sulphate,sodium sulfate as feedstock,with ammonium sulphate and carbon white as by-products. 介绍了利用中小磷肥厂副产的氟硅酸制冰晶石的新工艺,以低浓度的氟硅酸和碳酸氢铵、硫酸铝、硫酸钠为原料制取冰晶石,并副产硫酸铵和白炭黑。
- This article highlights the proprietary technology used to produce anhydrous hydrogen fluoride with fluorosilicic acid in foreign countries,as well as the scientific research achievem. 介绍了国外用氟硅酸生产无水氟化氢的专利技术以及四川大学的科研成果,认为经过中试获得必要的设计参数,便可推广应用,市场前景看好。
- Keywords fluorosilicic acid;ammonium hydrocarbonate;dynamics;research; 氟硅酸;碳酸氢铵;动力学;研究;
- Production of Anhydrous Hydrogen Fluoride with Byproduct Fluorosilicic Acid from Phosphate Fertilizer Plant 由磷肥厂副产氟硅酸生产无水氟化氢
- Study on Producing Cryolite from Low Concentration Fluorosilicic Acid in A Phosphate Fertilizer Plant 磷肥厂低浓度氟硅酸制冰晶石的研究
- Study on the Process to Produce Sodium Fluoride and Silica aerogel from Fluorosilicic Acid 由氟硅酸制氟化钠和白炭黑的工艺研究
- Production of sodium fluoride from fluorosilicic acid solution treated with soda ash by one step process 纯碱处理氟硅酸溶液一步法生产氟化钠
- Keywords AlF 3+Linz process;fluorosilicic acid;operation+intermittent;sequence control;design; 氟化铝+林茨工艺;氟硅酸;操作+间歇;时序控制;设计;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Keywords single superphosphate(SSP);fluororide-containing gas;fluorosilicic acid;sodium fluoride;aluminum fluoride;cryolite; 过磷酸钙;含氟尾气;氟硅酸;氟化钠;氟化铝;冰晶石;
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗?那是个严峻的考验。
- Keywords Wet - process phosphoric acid;wet - process phosphate fertilizer;adsorption process of fluoride;extrusionadsorption tower;silicon tetrafluoride;fluorosilicic acid; 湿法磷酸;湿法磷肥;氟吸收工艺;挤压吸收塔;四氟化硅;氟硅酸;
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯