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77.120.99

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中華人民共和國國家標(biāo)準(zhǔn)

GB/T18882.4—2024

離子型稀土礦混合稀土氧化物

化學(xué)分析方法

第4部分：三氧化二鐵含量的測定

電感耦合等離子體發(fā)射光譜法

Chemicalanalysismethodsofmixedrareearthoxideofion-absorption

rareearthore—

Part4：Determinationofirontrioxidecontent—Inductivelycoupled

plasmaatomicemissionspectrometry

2024-11-28發(fā)布2025-06-01實(shí)施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會(huì)

GB/T18882.4—2024

目次

前言

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Ⅲ

引言

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Ⅳ

1

范圍

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1

2

規(guī)范性引用文件

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1

3

術(shù)語和定義

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1

4

原理

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5

試劑或材料

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1

6

儀器設(shè)備

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2

7

樣品

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2

8

試驗(yàn)步驟

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2

8.1

試料

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2

8.2

平行試驗(yàn)

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2

8.3

空白試驗(yàn)

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3

8.4

分析試液的制備

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3

8.5

系列標(biāo)準(zhǔn)溶液的配制

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3

8.6

標(biāo)準(zhǔn)曲線的繪制與測定

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3

9

試驗(yàn)數(shù)據(jù)處理

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4

10

精密度

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4

10.1

精密度原始數(shù)據(jù)及統(tǒng)計(jì)

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4

10.2

重復(fù)性

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4

10.3

再現(xiàn)性

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5

Ⅰ

GB/T18882.4—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則

第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定

起草。

本文件是GB/T18882《離子型稀土礦混合稀土氧化物化學(xué)分析方法》的第4部分。GB/T18882

已經(jīng)發(fā)布了以下部分：

—第1部分：十五個(gè)稀土元素氧化物配分量的測定；

—第2部分：三氧化二鋁量的測定；

—第3部分：二氧化硅含量的測定；

—第4部分：三氧化二鐵含量的測定

電感耦合等離子體發(fā)射光譜法。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由全國稀土標(biāo)準(zhǔn)化技術(shù)委員會(huì)（SAC/TC229）提出并歸口。

本文件起草單位：福建省長汀金龍稀土有限公司、虔東稀土集團(tuán)股份有限公司、贛州有色冶金研究

所有限公司、國瑞科創(chuàng)稀土功能材料（贛州）有限公司、國合通用測試評(píng)價(jià)認(rèn)證股份公司、中國北方稀

土（集團(tuán)）高科技股份有限公司、江西理工大學(xué)、贛州稀土友力科技開發(fā)有限公司。

本文件主要起草人：王金鳳、王寶華、黃榮興、方雄洲、溫斌、曾雪花、江媛、賴旺、王偉生、

劉鵬宇、李淑萍、劉和連、胡巍鐘、張春蘭、劉為振、楊復(fù)光、孫浩然、葉信宇。

Ⅲ

GB/T18882.4—2024

引言

離子型稀土礦是我國特有的優(yōu)勢礦產(chǎn)，離子型稀土資源富含中、重稀土元素，是技術(shù)產(chǎn)業(yè)發(fā)展中不

可或缺的戰(zhàn)略資源，是發(fā)光材料、高性能磁性材料、激光材料、磁致冷材料、光導(dǎo)纖維、陶瓷材料、磁

致伸縮材料的重要成分。我國開發(fā)離子型稀土資源已有五十余年的歷史，離子型稀土的生產(chǎn)和應(yīng)用發(fā)展

迅速，從礦山提取、冶煉到應(yīng)用形成了較完整的工業(yè)生產(chǎn)體系。GB/T18882旨在通過實(shí)驗(yàn)研究建立一

套完整、切實(shí)可行且適應(yīng)于離子型稀土礦混合稀土氧化物產(chǎn)品生產(chǎn)和貿(mào)易需求的化學(xué)成分分析的方法標(biāo)

準(zhǔn)。限于文件篇幅、使用需求、適用范圍以及各分析方法之間的技術(shù)獨(dú)立性等方面原因，GB/T18882

《離子型稀土礦混合稀土氧化物化學(xué)分析方法》擬由4個(gè)部分構(gòu)成。

—第1部分：十五個(gè)稀土元素氧化物配分量的測定。目的在于建立X射線熒光光譜法和電感耦合等

離子體發(fā)射光譜法測定離子型稀土礦中十五個(gè)稀土元素氧化物配分量的方法。

—第2部分：三氧化二鋁量的測定。目的在于建立電感耦合等離子體發(fā)射光譜法和滴定法測定離

子型稀土礦中三氧化二鋁量的方法。

—第3部分：二氧化硅含量的測定。目的在于建立分光光度法和重量法測定離子型稀土礦中二氧

化硅量的方法。

—第4部分：三氧化二鐵含量的測定

電感耦合等離子體發(fā)射光譜法。目的在于建立電感耦合等離

子體發(fā)射光譜法測定離子型稀土礦中三氧化二鐵含量的方法。

上述各個(gè)部分文件通過明確適用范圍、規(guī)范試劑、材料、試驗(yàn)設(shè)備和步驟，并經(jīng)多家實(shí)驗(yàn)室反復(fù)試

驗(yàn)和驗(yàn)證給出精密度數(shù)據(jù)，為離子型稀土礦品質(zhì)核查建立嚴(yán)謹(jǐn)、規(guī)范的標(biāo)準(zhǔn)化工作基礎(chǔ)。

離子型稀土礦作為生產(chǎn)氯化稀土和氧化稀土的最重要的原材料之一，其質(zhì)量影響著后端稀土萃取分

離效果及氧化物的品質(zhì)。鐵是離子型稀土礦中最常見的雜質(zhì)元素之一，現(xiàn)行大多數(shù)稀土產(chǎn)品的國家標(biāo)準(zhǔn)

都對鐵有控制要求。鐵雜質(zhì)元素不僅影響稀土產(chǎn)品的質(zhì)量，也制約著稀土產(chǎn)品的應(yīng)用范圍。鑒于此，增

加第4部分。本文件采用電感耦合等離子體發(fā)射光譜法，建立了規(guī)范、易操作、準(zhǔn)確度高的檢測

標(biāo)準(zhǔn)。

Ⅳ

GB/T18882.4—2024

離子型稀土礦混合稀土氧化物

化學(xué)分析方法

第4部分：三氧化二鐵含量的測定

電感耦合等離子體發(fā)射光譜法

1范圍

本文件描述了離子型稀土礦混合稀土氧化物、稀土碳酸鹽、稀土草酸鹽中三氧化二鐵含量的測定

方法。

本文件適用于離子型稀土礦混合稀土氧化物中三氧化二鐵含量的測定，也適用于稀土碳酸鹽、稀土

草酸鹽中三氧化二鐵含量的測定。測定范圍（質(zhì)量分?jǐn)?shù)）：0.010%～1.80%。

2規(guī)范性引用文件