GB/T 6609.34-2009Chemical analysis methods and determination of physical performance of alumina -- Part 34: Method of calculating alumina content (English PDF)

Foreword

GB/T 6609 "alumina chemical analysis methods and determination of physical performance" is divided into 37 parts.

--- Part 1. Inductively coupled plasma atomic emission spectrometry Determination of trace elements;

--- Part 2. Determination of 300 °C and 1000 °C mass loss;

--- Part 3. molybdenum blue spectrophotometric determination of silicon dioxide content;

--- Part 4. phenanthroline spectrophotometric determination of ferric oxide content;

--- Part 5. Determination of sodium oxide content;

--- Part 6. flame photometric determination of potassium content;

--- Part 7. Determination of titanium dioxide content of the two safety for DAM spectrophotometry;

--- Part 8. diphenyl carbon acid dihydrazide spectrophotometric determination of chromium oxide content;

--- Part 9. neocuproine spectrophotometric determination of copper oxide content;

--- Part 10. benzoyl phenylhydroxylamine extraction spectrophotometric determination of the content of vanadium pentoxide;

--- Part 11. Flame atomic absorption spectrometric method for the determination of manganese oxide content;

--- Part 12. Flame Atomic Absorption Spectrometry Determination of zinc oxide content;

--- Part 13. Flame atomic absorption spectrometric method for the determination of calcium oxide content;

--- Part 14. lanthanum - alizarin complex spectrophotometric determination of fluorine content;

--- Part 15. Rhodanate spectrophotometric determination of chlorine content;

--- Part 16. Determination of curcumin boron trioxide content;

--- Part 17. molybdenum blue spectrophotometric determination of phosphorus pentoxide content;

--- Part 18. N, N- dimethyl-p-phenylenediamine spectrophotometric determination of sulfate content;

--- Part 19. Flame atomic absorption spectrometry determination of lithium oxide content;

--- Part 20. Flame atomic absorption spectrometric method for the determination of magnesium oxide content;

--- Part 21. Butyl Rhodamine B spectrophotometric determination of gallium oxide content;

--- Part 22. Sampling;

--- Part 23. sample preparation and storage;

--- Part 24. Determination of angle of repose;

--- Part 25. Determination of bulk density;

--- Part 26. Determination of effective density Pyknometer;

--- Part 27. Particle size analysis by sieving;

--- Part 28. less than 60µm fine powder particle size distribution measuring wet screening;

--- Part 29. Assay index;

--- Part 30. Determination of trace elements X-ray fluorescence spectrometry;

--- Part 31. Determination of flow angle;

--- The first part 32. alpha- alumina Determination of X- ray diffraction method;

--- Part 33. Determination of the abrasion index;

--- Part 34. Calculation of the content of aluminum oxide;

--- Part 35. specific surface area by nitrogen adsorption method;

--- Part 36. Determination of the flow of time;

--- Part 37. Determination of particle size less than 20µm particle content.

This is Part 34 GB/T 6609's.

The partial modification using AS2879.11-2004 "alumina - Part 11. determination of metallurgical grade alumina Al2O3 content of Party law".

When this part of the revised adoption AS2879.11-2004, delete its preface, table of contents. Meanwhile, in the normative reference document, with the corresponding National standards instead of the AS standards. To facilitate comparison, listed in Appendix A of this section and the corresponding clauses AS2879.11-2004 Chapter of the table.

Appendix A of this section is an informative annex.

This part is proposed by the China Nonferrous Metals Industry Association.

The non-ferrous metal part by the National Standardization Technical Committee.

Drafting this Part. Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Standards and Metrology Institute for Quality.

1 Scope

GB/T 6609 provisions of this part of the calculation method of aluminum oxide Al2O3 content.

This section applies to the calculation alumina Al2O3 content can be calculated by dry basis, it can also be calculated as the firing group.

NOTE. Press dry basis calculated metallurgical grade alumina Al2O3 content is generally 98.5% ~ 98.9%; calculated by baking group, metallurgical grade alumina Al2O3 content is generally 99.4% to 99.7%.

2 Normative references

The following documents contain provisions which, through reference to GB/T 6609 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 6609.2 alumina chemical analysis methods and determination of physical performance - Part 2. 300 °C and 1000 °C mass loss Determination GB/T 6609.30 alumina chemical analysis methods and determination of physical performance - Part 30. X-ray Fluorescence Spectrometry Content of Trace Elements

3 PRINCIPLE OF THE METHOD

Alumina Al2O3 content analysis and report the results can be calculated based calcined alumina, aluminum oxide can also press into the dry basis Line calculations. Calcined alumina base Al2O3 content is calculated by subtracting from the total content of impurity elements (100%) in. Alumina dry basis Al2O3 content is calculated by subtracting the content of impurity elements and the loss on ignition at 1000 °C from the total amount (100%) in.

Step 4

4.1 using GB/T 6609.30 Determination of impurity elements in aluminum.

4.2 using GB/T 6609.2 Determination of aluminum in water and loss on ignition.

NOTE. When using heavy oil firing, should consider the impact of sulfur from heavy oil.

5 Calculated measurement results

Determination of loss on ignition in accordance with the former sample is dried alumina Al2O3 contents were calculated according to the formula (1) and (2) get on.