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- STUDY ON PREPARATION OF STRONTIUM HYDROXIDE AND SODIUM NITRATE FROM WASTE STRONTIUM CARBONATE. 废碳酸锶制备八水氢氧化锶联产硝酸钠研究。
- Reduction-metathesis method for preparation of strontium carbonate from celestite is developed. 提出还原-复分解法制备碳酸锶的新工艺。
- The preparations of ultrafine strontium carbonate particles with various shapes were reviewed. 摘要对目前国内外不同形貌超细碳酸锶粒子的制备情况做了简要的综述。
- The determination of chloride in industrial strontium carbonate by turbidimetry with spectrophotometer is described. 采用目视比浊法测定工业碳酸锶中的氯化物,若溶液有色,准确定量非常困难。
- The determining method for the total sulphur in the industrial strontium carbonate is studied in this paper. 本方法研究了工业碳酸锶中总硫的测定。
- Using nitrates and etylene diamine tetra acetic acid(EDTA) as raw materials, Nano size La 0.8 Sr 0.2 FeO 3 powder was synthesized by EDTA complexing Sol Gel method at lower temperature. 以金属硝酸盐和乙二胺四乙酸 (EDTA)为原料 ;用EDTA络合溶胶 凝胶法合成了La0 .;8Sr0
- The process,using strontium nitrate and ammonium bicarbonate as raw materials to develop and produce high purity strontium carbonate is introduced. 介绍了以硝酸锶和碳酸氢铵为原料,研制生产高纯碳酸锶的工艺过程。
- The effects of the concentration of PSMA on the morphologies and phase structures of strontium carbonate particles were investigated and discussed. 结果显示随着PSMA浓度的变化，可以分别得到束状放射颗粒、哑铃状颗粒，不规则球形颗粒以及完整的球形颗粒。
- The principle and process conditions for the production of high purity strontium carbonate from celestite by catalytic converting method are studied. 采用湿法由天青石制备粗碳酸锶,粗碳酸锶经过过滤、酸溶、净化等过程制得高纯碳酸锶。
- Especially,the effect while adding EDTA and cerium nitrate to prepare rodlike and linear strontium carbonate particles respectively was the best. 其中添加乙二胺四乙酸（EDTA）与硝酸铈时分别制备出的线状与棒状碳酸锶粒子效果最好。
- PTFE matrix composites were fabricated using mixing nano sized powder process and vaporizing impregnant process. 采用溶剂蒸发法和固体纳米粉末混合法制备两种工艺制备了PTFE复合材料。
- The technology and mechanism of solution chemistry of preparation of strontium carbonate by double decomposition from celestite concentrate were investigated. 研究了天青石精矿复分解法制备碳酸锶的工艺及溶液化学作用机理。
- There are mainly two methods to prepare nano sized titania, uch as vapor phase process and liquid phase process. 纳米钛白的制备方法大致可分为两类,即气相法和液相法,而液相法是研究的重点和热点。
- XIE Yong-fu,GAO Rui-hua.Preparation of strontium carbonate with celestite and salvolatile by double decomposition[J].Jiansu Chemical Industry,1995,23(2):15-17. [5]谢永福;高瑞华.;用碳酸铵和天青石复分解制碳酸锶[J]
- The resource status of celestite in China is introduced.The main uses,technology,capacity,quality and price of the industrial strontium carbonate in China are analyzed. 介绍了中国天青石资源现状,对中国工业碳酸锶主要用途、生产技术、生产能力、产品质量及产品价格状况进行了分析。
- The results show that the hardness of composites fabricated with vaporizing impregnant process is much higher than that fabricated with mixing nano sized powder process. 结果表明在填料含量相同时,溶剂蒸发法制备的PTFE复合材料的硬度显著高于固体纳米粉末混合法制备的PTFE复合材料的硬度;
- The type,reaction mechanism and application of nano sized semiconductor photocatalyst are reviewed.The improvement of photocatalyst is also discussed in brief. 对半导体光催化剂的类型、作用机理、应用及其性能改进作了综合评述。
- Compared with pure PTT, the thermal stability, crystallization and tensile performance of the PTT/MMT composites are improved due to the introduction of nano sized DK2 MMT. 与纯PTT相比,由于MMT在PTT基体中达到纳米尺寸分散,PTT/MMT复合材料的热稳定性能、结晶性能和拉伸性能都得到了明显提高。
- Using industrial strontium carbonate as raw materials,ammonium bichomte removed barium,ammonium bicarbonate carbureted,the authors prepare the strontium carbonate(AR).Its content is morethan 99.5%. 以工业碳酸锶为原料制得氯化锶;采用重铬酸铵除钡;经碳酸氢铵碳化.;可得到含量为99
- The waste gas and water produced in the process of making strontium carbonate can be used to make S、(NH_2)_2CS、(NH_4)HCO_3,etc.The way of the comprehensive utilization is introduced in the paper. 介绍了利用碳酸锶生产过程中产生的废气、废水制取硫磺、硫脲、碳酸氢铵等的综合利用方法和途径。
