AU2007202703B2 - X-ray flux composition - Google Patents
X-ray flux composition Download PDFInfo
- Publication number
- AU2007202703B2 AU2007202703B2 AU2007202703A AU2007202703A AU2007202703B2 AU 2007202703 B2 AU2007202703 B2 AU 2007202703B2 AU 2007202703 A AU2007202703 A AU 2007202703A AU 2007202703 A AU2007202703 A AU 2007202703A AU 2007202703 B2 AU2007202703 B2 AU 2007202703B2
- Authority
- AU
- Australia
- Prior art keywords
- lithium
- ray flux
- flux composition
- borate
- ray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000004907 flux Effects 0.000 title claims description 37
- 239000000203 mixture Substances 0.000 title claims description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 229910052810 boron oxide Inorganic materials 0.000 claims description 9
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 claims description 5
- 150000002642 lithium compounds Chemical class 0.000 claims description 5
- HZRMTWQRDMYLNW-UHFFFAOYSA-N lithium metaborate Chemical compound [Li+].[O-]B=O HZRMTWQRDMYLNW-UHFFFAOYSA-N 0.000 claims description 5
- 238000004876 x-ray fluorescence Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004846 x-ray emission Methods 0.000 claims description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims 5
- 230000004927 fusion Effects 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 10
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 229910001260 Pt alloy Inorganic materials 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000004317 sodium nitrate Substances 0.000 description 5
- 235000010344 sodium nitrate Nutrition 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- -1 compound boron oxide Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
- C01B35/12—Borates
- C01B35/121—Borates of alkali metal
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
Specification for Patent Application Title: "X-Ray Flux Composition" Applicant: Country: Type: Number: X-Ray Flux Pty Ltd 88 Guthrie St., Osborne Park, West Australia 6017 Australia Standard Date: 12 June 1007 Title "X-RAY FLUX COMPOSITION Specification The following statement is a full description of this invention, including the best method of performing it known to me: Field of the Invention This invention relates to the analysis of materials, and in particular to a flux composition for x-ray fluorescence spectroscopy analysis of minerals, ores and other materials.
Description Throughout the description, unless the context requires otherwise, the word "comprise" or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or group of integers but not to the exclusion of any other integer or group of integers.
Background X-ray flux is produced by fusing at high temperatures approximately 1100 degrees C. in platinum or platinum alloy crucibles, chemicals containing lithium and boron. The molten material is then cooled and reduced in size to a powder or coarse material. The resultant material is x-ray flux and is usually represented or specified in the final commercial product as ratios of lithium tetraborate to lithium metaborate. At this stage, the x-ray flux can have additions of oxidizing agents such as sodium nitrate or lithium nitrate or other mold releasing agents.
The x-ray flux is then mixed with the samples to be analyzed and subsequently melted in a platinum or platinum alloy mold. Alternatively, the x-ray flux plus sample is melted in a platinum or platinum alloy crucible and poured into a platinum or platinum alloy mold. The mold is cooled and the result is a glass like disc which is then placed into an x-ray fluorescence spectrograph machine for analysis.
Previous difficulties Difficulties exist with previous manufacture because of the production of substantial amounts of water vapor in the reaction which when combined with the flux fumes formed in the reaction form a very corrosive atmosphere, which subsequently causes rapid deterioration of the furnace or melting apparatus 02/01 '09 12:38 FAX 61 8 92449611 X-RAY FLUX PTY lTD 003 linings and heating elements, thus causing premature breakdown of the melting equipment.
Further, because large quantities of water are generated in the reaction which have to be converted to steam as the flux melts, large quantities of electrical or gas energy are needed to drive off the water vapor as the reaction continues before the chemical reaction can proceed to completion.
Inventive Idea The inventor has found that the compound boron oxide (B 2 0 3 which was hitherto not known to be available as a starting substance for x-ray flux manufacture, can be used as the specific boron donating substance in the manufacture of such x-ray flux. When this compound is used, the amount of water formed in the flux reaction is eliminated or substantially diminished depending on the lithium compound used thus significantly diminishing the corrosive effect on the furnace or melting apparatus. Also, the amount of energy input needed to complete the reaction is substantially reduced. Further, the processing time to produce a given quantity of x-ray flux by using boron oxide is approximately halved, as a consequence of not having to drive off water formed in the reaction which is the case with other boron compounds such as boric acid which is currently used.
Best Mode(s) for Carrying Out the Invention The embodiment involves the addition boron oxide (B 2 0 3 to the lithium containing chemicals before fusing to make the flux. The addition of boron oxide is added such that the percentage of boron in the finished flux is from 1.0 to by weight.
Sodium nitrate, lithium nitrate, or other oxidizing compounds, can also be also added to the lithium compounds and boron oxide after fusing to give a percentage of sodium nitrate, lithium nitrate, or other oxidizing compounds, in the finished flux of 1 to 25% by weight. Sodium nitrate, lithium nitrate, or other oxidizing compounds are added if required, to oxidize suiphides when they are present in samples, so they can be analyzed.
A batch of flux is made up by adding various amounts of boron oxide to lithium containing compounds to make the flux. For a flux equivalent to lithium tetraborate and lithium metaborate in the proportion of 1.2 parts to 2.2 parts respectively, boron oxide is added to a lithium containing compound in the ratio of 1.05 parts of boron oxide to 1.0 part of a lithium compound containing I atom of lithium or 0.5 parts of a lithium compound containing 2 atoms of lithium. These ingredients are combined and mixed, and placed in a platinum or platinum alloy crucible and are fused at 1100 degrees C. The fused mix, which forms a liquid 2 COMS ID No: ARCS-218725 Received by IP Australia: Time 15:35 Date 2009-01-02 glass, is allowed to cool and reduced in size to a coarse material or a powder to produce the finished flux.
In use, a known quantity of the minerals, ore or other materials to be analyzed is combined with a known quantity of the finished flux, such that the amount of minerals, ore or other material relative to the amount of finished flux is known.
This mixture is melted at high temperature. Typically from 1:4 to 1:30 by weight minerals, ore or other material to finished flux is usually satisfactory, depending upon the substance or ore type and grade. For typical ore deposits in Australia, 1 gram of ore is added to 7 grams of finished flux with or without a percentage of sodium nitrate or lithium nitrate and melted in a platinum or platinum alloy mold.
Alternatively, the ore and finished flux is melted in a platinum or platinum alloy crucible and poured into a mold. The mold is cooled and the contents form a glass-like disc which is then placed into an x-ray fluorescence spectrograph machine for analysis. The amount of elements present is determined by analysis of the spectral lines.
Claims (9)
1. A method of producing an x-ray flux composition as a borate of lithium where the lithium comes from lithium compounds and the boron specifically comes solely or partially from the starting compound boron oxide which together when melted at high temperature forms the final x- ray flux composition which is used for the quantitative or qualitative determination of elements in samples of minerals, ores or other material to be analyzed by x-ray fluorescence spectrography.
2. The x-ray flux composition produced as in claim 1 where the boron is present in proportion by weight of at least
3. The x-ray flux composition produced as in claim 1 where the boron is present in proportion of at least 90.0% by weight in the said composition
4. The x-ray flux composition produced as in claim 1 where the borate of lithium may be entirely lithium tetraborate.
The x-ray flux composition produced as in claim 1 where the borate of lithium may be entirely lithium meta-borate.
6. The x-ray flux composition produced as in claim 1 where the borate of lithium comprises a mixture of lithium tetraborate and lithium meta-borate in a range of proportions from 1:10 to 10:1.
7. The x-ray flux composition produced as in claim 1 where the borate of lithium comprises a mixture of lithium tetraborate and lithium meta-borate in the proportion of 1.2:2.2 respectively.
8. A known quantity of the x-ray flux compositions produced as in any one of the claims 1 to 7 is mixed and fused with a predetermined sample of minerals, ore or other material and an x-ray fluorescence spectroscopy is performed on the said fusion.
9. The said minerals, ore or other materials and said x-ray flux composition of any one of the claims 1 to 8 are mixed in weight proportion from 1:1 to 1:50 respectively. 4 COMS ID No: ARCS-218725 Received by IP Australia: Time 15:35 Date 2009-01-02
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2007202703A AU2007202703B2 (en) | 2007-05-04 | 2007-06-13 | X-ray flux composition |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2007902366 | 2007-05-04 | ||
| AU2007902366A AU2007902366A0 (en) | 2007-05-04 | X-Ray Flux Composition | |
| AU2007202703A AU2007202703B2 (en) | 2007-05-04 | 2007-06-13 | X-ray flux composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2007202703A1 AU2007202703A1 (en) | 2008-11-20 |
| AU2007202703B2 true AU2007202703B2 (en) | 2009-01-15 |
Family
ID=40099477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2007202703A Active AU2007202703B2 (en) | 2007-05-04 | 2007-06-13 | X-ray flux composition |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2007202703B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010249195B1 (en) * | 2010-12-07 | 2011-06-30 | X-Ray Flux Pty Ltd | Lithium X-Ray flux composition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8403025B2 (en) * | 2011-08-30 | 2013-03-26 | Spex Sample Prep Llc | Preparation of inorganic samples by fusion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433299A (en) * | 1977-08-20 | 1979-03-10 | Agency Of Ind Science & Technol | Preparation of lithium borate |
| JPS6296315A (en) * | 1985-10-18 | 1987-05-02 | Honjiyou Chem Kk | Production of lithium borate |
-
2007
- 2007-06-13 AU AU2007202703A patent/AU2007202703B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433299A (en) * | 1977-08-20 | 1979-03-10 | Agency Of Ind Science & Technol | Preparation of lithium borate |
| JPS6296315A (en) * | 1985-10-18 | 1987-05-02 | Honjiyou Chem Kk | Production of lithium borate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010249195B1 (en) * | 2010-12-07 | 2011-06-30 | X-Ray Flux Pty Ltd | Lithium X-Ray flux composition |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2007202703A1 (en) | 2008-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |