GB/T 15676-2015 English PDF

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GB/T 15676-2015: Terms for rare earths
Status: Valid

GB/T 15676: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15676-2015	448	Add to Cart	1 days	Terms for rare earths	Valid
GB/T 15676-1995	RFQ	ASK	9 days	Terms for rare earths	Obsolete

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Basic data

Standard ID: GB/T 15676-2015 (GB/T15676-2015)
Description (Translated English): Terms for rare earths
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H04
Classification of International Standard: 77.120.99
Word Count Estimation: 83,824
Date of Issue: 2015-09-11
Date of Implementation: 2016-04-01
Older Standard (superseded by this standard): GB/T 15676-1995
Regulation (derived from): National Standard Announcement 2015 No.25
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 15676-2015: Terms for rare earths

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Terms for rare earths ICS 77.120.99 H04 National Standards of People's Republic of China Replacing GB/T 15676-1995 The term rare earth Issued on. 2015-09-11 2016-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 General terms 1 2 3 rare earth minerals and concentrate 5 4 rare earth metal compound (smelting separation products) 7 4.1 single rare earth 7 4.2 misch 9 4.3 single rare earth oxide 9 4.4 mixed rare earth oxide 11 4.5 11 rare earth salt 5 rare earth alloy 15 5.1 Rare Earth Ferroalloy 15 5.2 nonferrous alloys of rare earth 16 5.3 Other rare earth alloy 17 6 Rare Earth Functional Materials 17 6.1 rare earth permanent magnet material 17 6.2 22 rare earth hydrogen storage materials 6.3 rare earth luminescent material 25 6.4 30 rare earth polishing materials 6.5 rare earth magneto-optical material 30 6.6 31 rare earth laser materials 6.7 giant magnetostrictive material 32 6.8 32 rare earth superconducting materials 6.9 rare earth magnetic refrigeration material 32 Rare Earth Catalytic Materials 34 6.10 6.11 RE heating material 35 6.12 RE cathode emissive material 35 6.13 Electronic Materials 36 rare earth magnet 6.14 RE absorbing material 36 6.15 RE nuclear material 37 6.16 scintillation crystal 38 7 application of rare earth products 39 7.1 Steel Rare Earth 39 7.2 39 rare earth iron 7.3 rare-earth glass 40 7.4 Rare Earth and Ceramic 41 7.5 42 rare earth pigments and glazes 7.6 RE 43 agricultural products 7.7 Rare Earth Additives 43 8 rare earth production process 44 8.1 44 rare earth mining process Rare earth separation process 45 8.2 8.3 48 rare earth smelting process 8.4 Rare Earth Processing 49 50 8.5 Application of Rare Earth in the process of iron and steel 8.6 52 other rare earth application process 9 RE recyclables 52 9.1 Waste 52 9.2 gas 52 9.3 waste 53 9.4 Other 53 References 55 Index 56

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 15676-1995 "rare-earth terms." This standard compared with GB/T 15676-1995, in addition to editorial changes, the major technical changes are as follows. --- Reg modified structure, standards are divided into "general terms of rare earth, rare earth minerals and enrichment, and rare earth metal compounds, rare earth Alloys, rare earth functional materials, application of rare earth products, rare earth production technology, rare earth recyclables "eight parts, instead of the original standard "Usually the term rare earth, rare earth minerals and enrichment of rare earth alloy and cast iron, rare earth products, the application of rare earth products, Production Engineering Arts, part inspection and analysis of eight rare earths other common terminology Definitions "; --- Original standard of "rare earth alloy and cast iron" clauses were moved "rare earth metal" and "application of rare earth products" clauses, the original standard "Rare earth products" reg refinement as "rare earth metals and their compounds" and "Rare Earth Functional Materials" reg; --- An increase of rare earth functional materials reg, presented by category of rare earth permanent magnetic materials, rare earth hydrogen storage materials, rare earth polishing materials, rare earth made Light materials and other related terms (see 6.1 and 6.16); --- Increased RE reg recyclables by category given rare earth waste gas, waste and other related terms (see 9.1 to 9.4); --- Delete the original standard "test analysis of commonly used terms and definitions" section (see Chapter 8 of the 1995 edition); --- Delete the original standard of "rare earth other aspects of the terms and definitions" (see the 1995 edition, Chapter 9); --- A total of 30 entries deleted, an increase of 275 entries. This standard by the National Standardization Technical Committee of rare earth (SAC/TC229) and focal points. This standard is mainly drafted by. Baotou Rare Earth Research Institute, the National Product Quality Supervision and Inspection Center of rare earth, rare earth Metallurgy and Riko functional material Materials National Engineering Research Center Co., Ltd., Technical and Economic Research Institute of Nonferrous Metal, Iron and Steel Research Institute of Functional Materials, Beijing industrial Learn circulation of Economic Research, Xiamen Topstar New Materials Co., Ltd., Institute of Rare Earth New Materials Co., Ltd., Changchun Institute of Chemistry, Qiandong Rare Earth Group Co., Ltd., Jiangyin Jiahua Advanced Material Resources Co., Ltd., Guangdong Zhujiang Rare Earth Co., Ltd., Ganzhou Chenguang Rare Earth New Materials Co., Ltd., Hunan Institute of rare earth materials, Kunming Institute catalyst limited liability company, Beijing University of And Molecular Engineering, Materials Science and Engineering, Sichuan University. The main drafters of this standard. Xu Tao, Yangzhan Feng, Zhang Zhihong, Yan Huizhong, Zhu Yuhua, Gao Lan, Xie Ping, Wang bamboo shoots, Xu Yanhui, Wang Xiaoqing, Liu Zheng, Wang Jiao Huang, Sun Liangcheng, Jiang Liping, Hao Qian, Shen Lei Jun, Zhang Ruixiang, Yuanli Bing, Zhang Zhongyi, Zhuming Gang, Zhang Ke, Wu Yufeng Wei Lan, Luan Chau, Zhang Deping, Nam Hung Yao, Xie Jianwei, Jinyan Hua, Chen Yan, Liu Rongli, Weng Guoqing, Wang Xianghong, Zhaoming Jing, Yan magnificent, Wang Feng, Zhang Guangrui, Chan Third, He Jing, Sun Ling Tung, Yangdong Xia, Zheng. This standard replaces the standards previously issued as follows. --- GB/T 15676-1995. The term rare earth

1 Scope

This standard specifies the general terms of rare earth, rare earth minerals and enrichment, and rare earth metal compounds, rare earth alloy, rare earth functional materials Materials, application of rare earth products, rare earth production technology, rare earth recyclables and other commonly used terms and definitions related aspects. This standard applies to the production, use, testing, distribution, research and teaching in areas such as rare earth, as a unified technical term basis.

2 general terms

2.1 RE rareearth Periodic table of elements from the lanthanide atomic number 57-71, namely lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu) and atomic order number 21 General of scandium (Sc), 39 yttrium (Y) a total of 17 elements. Usually represented by the symbol RE, it is a set of elements similar chemical properties. Currently In the rare earth industry and product standards, generally refers to a rare earth promethium (Pm), 15 elements scandium (Sc) other than the addition. 2.2 Rare Earth Elements rareearthelements See 2.1. 2.3 Light Rare Earth lightrareearthelements General lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd) 4 elements. 2.4 Rare Earth middlerareearthelements General samarium (Sm), europium (Eu), gadolinium (Gd) 3 elements. 2.5 HREE heavyrareearthelements Terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y) 8 elements in general. 2.6 Cerium RE cerium-grouprareearthelements Cerium (Ce) consisting mainly of a group of rare earths, including lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu) 6 elements. 2.7 Yttrium group rare earth yttrium-grouprareearthelements Yttrium (Y) consisting mainly of a group of rare earths, including gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), Lutetium (Lu), yttrium (Y) 9 elements. 2.8 Lanthanide contraction lanthanidecontraction Atomic radius and ionic radius of the lanthanide elements with increasing atomic number gradually decrease. Causes of the lanthanides In each additional proton nucleus, there will be a corresponding 4f electrons into orbit, while the 4f electrons of the inner electron nuclear shield is better, because This increases with the atomic number, the effective nuclear charge increases, check the outermost electron attraction enhancements make atomic radius and ionic radius gradually reduced. ......

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