Current Category: CN-XB - Rare earths
This document is applicable to the green factory evaluation of enterprises or production units engaged in the production of rare earth polishing powders.
This document is applicable to the green factory evaluation of enterprises or production units engaged in the production of rare earth metals and alloys through molten salt electrolysis, metal thermal reduction, reduction distillation, and refining and purification. This document is not applicable to the green factory evaluation of enterprises or production units engaged in the production of rare earth fluorides, rare earth silicon-iron alloys, rare earth magnesium-silicon-iron alloys, and neodymium-iron-boron alloys.
This document is applicable to the green factory evaluation of enterprises engaged in the production of rare earth compounds by wet metallurgy.
This document is applicable to the evaluation of green design for rare earth silicon-iron alloy products produced by the rare earth pyrometallurgical process.
This document is applicable to the evaluation of green design products of rare earth polishing powders, which are made from cerium-based rare earth compounds by chemical methods and have specific physical phases and performance characteristics.
This document is applicable to the determination of the content of 73 impurity elements in lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, yttrium oxide, and scandium oxide. This document is not applicable to the determination of impurity elements in cerium oxide, praseodymium oxide, neodymium oxide, and samarium oxide. For instruments with ion source components made of tantalum, it is not applicable to the determination of gold and tantalum in all rare earth oxides.
This document is applicable to the determination of the distribution ratios of fifteen rare earth element oxides in yttrium-rich oxide concentrates, yttrium-rich carbonate concentrates, and yttrium-rich liquid concentrates.
This document is applicable to the determination of the hydrogen content in neodymium-iron-boron alloys. The measurement range is 0.0005% to 0.20%.
This document is applicable to the determination of the contents of zirconium oxide, yttrium oxide, and hafnium oxide in rare earth composite yttrium zirconium ceramic materials.
This document is applicable to gadolinium-iron alloys produced by electrolysis and melt-casting methods, and is mainly used for the preparation of rare earth permanent magnet materials such as neodymium-iron-boron alloys.
This document specifies the three-electrode system test method for the electrochemical performance of rare earth-based hydrogen storage alloy powder used in the anode of metal hydride-nickel batteries.
This document is applicable to terbium fluoride and dysprosium fluoride prepared by chemical methods, and then processed by grinding, sieving and other processes. They are used in the production of neodymium iron boron permanent magnetic materials through grain boundary diffusion sintering.