high-purity相关论文
钨因其独特的物理化学性能而被广泛的应用于半导体和高温材料.依次采用离子交换、溶剂萃取、重结晶、喷雾干燥和煅烧还原的方法对......
Preparing high-purity iron by direct reduction?smelting separation of ultra-high-grade iron concentr
A new process for preparing high-purity iron(HPI)was proposed,and it was investigated by laboratory experiments and pilo......
以价格低廉天然优质粉石英矿物为基本原料,采用改进溶胶-凝胶技术,盐酸和硅酸钠溶液共滴加的方式,制备高纯球形纳米SiO2粉体材料。......
采用不同热处理工艺制备了3种晶粒尺寸(60、100、500μm)的高纯铝板材,利用平板撞击实验研究了其层裂行为。通过改变飞片击靶速度,......
在啤酒的生产过程中CO2是非常重要的生产原料,之前啤酒厂需要花费大量的金钱从外部购买高纯度的CO2;同时在啤酒发酵过程中,CO2会作......
采用电感耦合等离子体质谱法（ICP-MS）测定高纯铁中痕量杂质元素 Cr、 Cu、 Ni、 V、 Co、 Sn，测量结果准确、可靠，满足高纯铁中的痕量......
将常压蒸馏、减压蒸馏、溶剂纯化几种常规工艺联合,解决高纯无水三氯化铟制备中脱水、提纯等技术难题,最终确定了制备高纯无水三氯......
以黄钠铁矶渣制取的硫酸亚铁溶液为原料，经过净化后采用沉淀法制备α-Fe2O3微粉。通过热重／差热分析、X射线衍射分析、扫描电镜和光......
用菱镁矿和工业纯硫酸来制备七水硫酸镁,进一步脱水得到无水硫酸镁。以无水硫酸镁和木炭粉为原料,经高温煅烧制备高纯氧化镁。研究......
以分析纯硝酸锶为原料，采用硝酸锶分次重结晶同时加入适量的硫酸除去钡及其它杂质，加入适量草酸除去钙杂质，然后选择合适的ｐＨ值加入高纯......
高纯氧化镁是一种重要的化工原料，在建筑材料、环保领域、农业、化学催化等方面有着广泛的应用。笔者以盐湖氯化镁和生石灰为原料，结......
以四氯化钛（TiCl4）为原料,液体石蜡为纯化剂,氨水为形核剂,采用蒸馏与水解两步法制备金红石型高纯TiO2粉体.通过XRF分析样品中的杂质......
高纯铌样品0.050 0g中加入适量的水,缓慢加入1mL氢氟酸和2mL硝酸,低温加热使其溶解,冷却至室温,用水定容至100mL。采用电感耦合等......
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以ZrO_2、硼源（B_4C和B_2O_3）、碳源（石墨粉和炭黑）为原料,分别采用ZrO_2-B_4C-C体系和ZrO_2-B_4C-B_2O_3-C体系,在氩气气氛下通过硼/......
Internal friction and micro-creep measurements were performed with high-purity aluminiumbamboo-crystal specimens.The rel......
首先建立内部热耦合精馏塔（ITCDIC）的非线性波动降阶模型,并将非线性波动理论（wave）应用到ITCDIC控制问题中,实现一般模型控制（GMC）方案......
以硅酸盐、无机酸为原料,经凝胶、老化、酸化、水洗、除杂、干燥工序后得到高纯度大孔硅胶,用比表面空隙仪对样品的物性参数进行了......
玻璃熔窑是常用的热工设备。近几年来，随着玻璃熔窑内衬耐火材料选择的发展，玻璃工业也取得了长足的进步，而对耐火材料的要求也越来越......
Atomic Emission Spectrographic Analysis of High-purity Gallium with Prior Partial Dissolution of Mat
An improved method has been developed for enriching and determining trace In,Pt,Sn,Co,Hg,Pb,Ni,Bi,Pd,Cu and Ag in high-p......
A Controlled Mixing Method for Stabilizing the Purity and Reducing the Waste in Gas Delivery Systems
The variation of impurity concertation in the ultra-high purity (UHP) gases, delivered from cryogenic storage tanks and ......
Electrodeionization(EDI),also known as continuous deionization(CDI)and packed-cell electrodialysis,is a novel hybrid sep......
Two optical methods, namely crystal facet reflection and etching pits reflection, were used to orient and high-purity ge......
刚果(金)铜钴矿资源丰富,硫化矿经浮选得到的铜钴精矿主要采用硫酸化焙烧-酸浸工艺进行处理。受矿石成分复杂多变及焙烧操作水平的......
Quartzites are widespread within Earth's lithosphere,but their highly pure varieties occur quite infrequently.With t......
Study on cosmogenic radioactive production in germanium as a background for future rare event search
Rare event search experiments are one of the most important topics in the field of fundamental physics,and high-purity g......
