GB/T 23588-2020 in English

《GB/T 23588-2020钕铁硼生产加工回收料》由TC229（全国稀土标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Recyclable manufacturing scraps of neodymium iron boron

1 Scope

This standard specifies the technology requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificate for recyclable manufacturing scraps of neodymium iron boron.

It is applicable to the recycle, processing and trade of all kinds of recyclable scraps generated during the manufacturing and processing of neodymium iron boron (hereinafter referred to as recyclable scraps).

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.

GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
XB/T 612.1 Chemical analysis methods of scraps of neodymium iron boron - Part 1: Determination of total rare earth oxide content
XB/T 612.2 Chemical analysis methods of scraps of neodymium iron boron - Part 2: Determination of fifteen rare earth oxide relative contents - Inductively coupled plasma atomic emission spectrometry
XB/T 612.3 Chemical analysis methods of scraps of neodymium iron boron - Part 3: Determination of boron, cobalt, aluminum, copper, chromium, nickel, manganese, titanium, calcium, magnesium contents - Inductively coupled plasma atomic emission spectrometry
XB/T 617.4 Chemical analysis methods of neodymium iron boron alloy - Part 4: Determination of iron content - The potassium dichromate titrimetry

3 Terms and definitions

For the purposes of this document, the following term and definition apply.

3.1
recyclable manufacturing scraps of neodymium iron boron
grinding mud, scrap skin, scrap debris, powder, slag, waste products, etc. generated during the manufacturing of neodymium iron boron, which can be extracted again to obtain valuable elements such as rare earth after impurity removal

4 Technical requirements

4.1 Classification

The classification of recyclable scraps is shown in Table 1.

Table 1 Classification of recyclable scraps

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage and quality certificate