YS/T 509.1-2008Methods for chemical analysis of spodumene and lepidolite concentrates. Determination of lithium oxide, sodium oxide, and potassium oxide contents. Flame atomic absorption spectrometric method (English PDF)

Foreword

YS/T 509 "Methods for chemical analysis of spodumene and lepidolite

concentrates" consists of the following 11 parts.

- Part 1.Determination of lithium oxide sodium oxide and potassium oxide

contents - Flame atomic absorption spectrometric method;

- Part 2.Determination of rubidium oxide and caesium oxide contents -

Flame atomic absorption spectrometric method;

- Part 3.Determination of silicon dioxide content - Gravimetric-

molybdenum blue photometric method;

- Part 4.Determination of aluminum oxide content - EDTA compleximetric

method;

- Part 5.Determination of ferric oxide content - O-phenanthroline

photometric method and EDTA compleximetric method;

- Part 6.Determination of phosphorus pentoxide content - The

molybdenum blue photometric method;

- Part 7.Determination of beryllium oxide content – Chromazurol S and

cetyltrimethyl ammonium bromide spectrophotometric met;

- Part 8.Determination of calcium oxide and magnesium oxide content -

Flame atomic absorption spectrometric method;

- Part 9.Determination of fluorine content - lon selective electrode method;

- Part 10.Determination of manganous oxide content-Persulfate oxidation

photometric method;

- Part 11.Determination of loss on ignition - Gravimetric method.

This Part is Part 1.

This Part replaces YS/T 509.1-2006 "Methods for chemical analysis of

spodumene and lepidolite concentrates The atomic absorption

spectrophotometric method for determination of lithium oxide sodium oxide and

potassium oxide contents" (previous edition is GB/T 3885.1-1983).

Compared with YS/T 509.1-2006, the main changes in this Part are as follows.

- re-edited the text format;

- added the provisions on quality assurance and control, added repetitive

clauses.

This Part was proposed by and shall be under the jurisdiction of National Non-

ferrous Metals Standardization Technical Committee.

Main drafting organization of this Part. Xinjiang Lithium Salt Factory.

The drafting organizations of this Part. Yichun Tantalum - niobium Mine,

Xinjiang Nonferrous Metal Research Institute.

Main drafters of this Part. Xia Shufen, Ji Juanjuan, Qian Wei, Zhang Xingde.

Main authenticator of this Part. Jiang Xiaopeng, Guan Yuzhen.

Versions of standard substituted by this Standard are.

- GB/T 3885.1-1983, YS/T 509.1-2006.

Methods for chemical analysis of spodumene and

lepidolite concentrates - Determination of lithium

oxide, sodium oxide and potassium oxide contents -

Flame atomic absorption spectrometric method

1 Scope

This Part specifies the determination methods for lithium oxide, sodium oxide

and potassium oxide contents in spodumene, lepidolite concentrates.

This Part is applicable to the determinations of lithium oxide, sodium oxide and

potassium oxide contents in spodumene, lepidolite concentrates.

Determination range. 3.00% ~ 8.00% for lithium oxide; 0.10% ~ 10.00% for

sodium oxide, potassium oxide.

2 Method summary

The test material is decomposed with hydrofluoric acid-sulfuric acid. In a sulfuric

acid medium, determine the lithium oxide, sodium oxide, and potassium oxide

by using an air-acetylene gas lean burn flame at wavelengths of 670.8 nm,

3 Reagents

Unless otherwise stated, only the reagents identified as analytically pure and

distilled water or water of comparable purity are used in the analysis.

4 Instruments

Atomic absorption spectrometer with air-acetylene burner and lithium, sodium

and potassium hollow cathode lamps.

5 Specimen

6 Analysis steps

7 Calculation of analysis results

Lithium oxide, sodium oxide and potassium oxide mass fraction w, in %, is

calculated by.

8 Precision

9 Quality assurance and control

Use national standard samples or industry-standard samples (control samples

can also be used if the two are not available) to check the validity of the

analytical method standard weekly or every two weeks.

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