共查询到19条相似文献,搜索用时 62 毫秒
1.
2.
稀土储氢合金的生产及其在镍氢电池中的应用 总被引:1,自引:0,他引:1
阐述了稀土储氢合金的生产工艺,生产所需材料,产品品种、产能、质量状况以及它的主要应用面(镍氢电池)的开发、生产情况。 相似文献
3.
4.
5.
阐述了稀土储氢合金的生产工艺 ,生产所需材料 ,产品品种、产能、质量状况以及它的主要应用面 (镍氢电池 )的开发、生产情况。 相似文献
6.
本文综述了我国稀土储氢合金粉的生产原料,生产工艺和装备,产量,质量,应用及市场等的主要发展状况。1990年前我国已研制成功该合金,且有批量生产供应国内市场。1990年后这种合金逐步走向产业化的工业生产,且可大量生产供应国内外市场,特别是供给镍氢电池(Ni/MH电池)作为负极材料的需求。在合金的原料供给,生产工艺技术和设备,质量及性能等方面已达到了世界先进水平。 相似文献
7.
8.
提出了微波消解-电感耦合等离子体原子发射光谱(ICP-AES)同时测定稀土合金渣中氧化镧、氧化铈、氧化镨、氧化钕、氧化钐和氧化镝等主要稀土氧化物的分析方法。考察4种不同的消解试剂体系,优化了消解参数并选择了合适的分析线。结果表明,在以下条件下样品的消解效果最好:以HNO3-HCl-HF-H2O2(V(HNO3)∶V(HCl)∶V(HF)∶V(H2O2)=4∶2∶2∶1)作为消解试剂,采用四段升温的消解程序,设定的最低温度为160 ℃,最低压力为1.5 MPa,最高温度为225 ℃,最高压力为3.5 MPa,每段的最大温差不超过25 ℃,最大压差不超过1 MPa。在选定的仪器参数下,以408.671,413.765,390.843,401.255,359.260,353.171 nm 波长的谱线分别作为La,Ce,Pr,Nd,Sm,Dy的分析线,用稀土氧化物绘制校准曲线,ICP-AES法测定消解液中上述氧化物。测定结果的相对标准偏差在0.44%~0.98% 范围,加标回收率在94%~106%之间。 相似文献
9.
10.
11.
Shin Dong Jun Gao Xu Ueda Shigeru Kitamura Shin-ya 《Metallurgical and Materials Transactions B》2019,50(3):1248-1259
Metallurgical and Materials Transactions B - Steelmaking slag contains considerable amount of manganese (Mn) and phosphorus (P), and recycling them is an important issue. Since Mn is an alloy added... 相似文献
12.
Flotation experiments performed on metallurgical grade silicon have demonstrated that silicon (Si) can be floated in diluted solutions of hydrogen fluoride (HF) and a frother. The recovery was found to depend on HF conditioning time, frother type, and the concentration of both HF and frother. Although Brij 58 produced the highest recoveries of the frothers that was tested, good recoveries were also obtained for Flotanol C07. Chemical analyses showed that the flotation products were purer than the corresponding feed materials, and that most impurity elements were concentrated in the tailings. A case study on cleaning of slag containing 36 pct metallurgical silicon showed promising results concerning the recovery of silicon by flotation. 相似文献
13.
The steel slag in the decarburization converter is treated by the little water-spreading (LWS) and the heat-stewed (HS) methods, which is used as the furnace burden of the dephosphorization converter. The slag characteristics by the LWS and the HS methods and its application effects as the furnace burden are researched. The results show the moisture content in the HS slag is higher than that of the LWS slag. There is higher total iron content in the HS and the LWS slags and almost same melting point. The dicalcium silicate content in the LWS slag is higher than that in the HS slag. The tricalcium silicate in the LWS slag is lower than that in the HS slag. There are a lot of calcium ferrite in the LWS and the HS slags, which is beneficial to dephosphorization and slag melting. The LWS and the HS slags are added to dephosphorization converter each charge by 3 or 6 t. The results show that the saving lime is 0. 7-1. 0 t for each charge. The petrographic constitute of final slag for the dephosphorization converter by adding the LWS and the HS slags is dicalcium silicate, RO phase and glass phase. There are a little calcium ferrite phase in the LWS slag, which is helpful to dephosphorization. So there are better dephosphorization effects for the LWS and HS slags. 相似文献
14.
Popovich A. A. Sufiiarov V. Sh. Polozov I. A. Grigoriev A. V. 《Russian Journal of Non-Ferrous Metals》2019,60(2):186-193
Russian Journal of Non-Ferrous Metals - The in situ synthesis of the Ti2AlNb-based intermetallic alloy was studied using selective laser melting of powder materials. The object of research was the... 相似文献
15.
从废弃炉渣中分离回收钴、镍 总被引:1,自引:0,他引:1
用酸(硫酸+少量硝酸)浸出废弃炉渣,其中的Cu、Ni浸出率达99%以上,Co浸出率为87%。浸出液用铁粉置换法分离铜、黄钠铁矾法除铁、NaF法除钙镁、P204深度除杂、P507分离镍钴,杂质去除率达99.5%以上,Ni、Co回收率均超过94%。 相似文献
16.
废电路板有色金属资源化回收利用过程中,会产生大量冶炼炉渣。针对《国家危险废物名录》(2021年版)实施后有色金属资源化回收冶炼炉渣的下一步安全处置方式、危险特性不明等问题,选取国内某典型电子危险废物治理企业富氧侧吹冶炼炉渣为研究对象,通过采集100个样品进行元素种类和腐蚀性、毒性特性测试,得出该冶炼炉渣不具有危险废物鉴别标准规定的危险特性,可按照一般工业固体废物进行管理的结论。该结论有助于冶炼炉渣的危险特性判断和环境监管,也为冶炼炉渣类无害化处理和资源化利用提供了技术指导。 相似文献
17.
18.
Themischmetal(Mm)hydrogenstoragealoyshavesofarbeensuccesfulydevelopedasahighcapacitynegativeelectrodematerialforsecondaryb... 相似文献