CN106769300A - The assay method of effective aluminium and activated silica in a kind of gibbsitic bauxite - Google Patents
The assay method of effective aluminium and activated silica in a kind of gibbsitic bauxite Download PDFInfo
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- CN106769300A CN106769300A CN201611144854.2A CN201611144854A CN106769300A CN 106769300 A CN106769300 A CN 106769300A CN 201611144854 A CN201611144854 A CN 201611144854A CN 106769300 A CN106769300 A CN 106769300A
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- activated silica
- effective aluminium
- aluminum
- aluminium
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000004411 aluminium Substances 0.000 title claims abstract description 45
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 22
- 238000003556 assay Methods 0.000 title claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 10
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 10
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 10
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000029087 digestion Effects 0.000 claims abstract description 7
- 238000007865 diluting Methods 0.000 claims abstract description 7
- 239000012153 distilled water Substances 0.000 claims abstract description 7
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 claims abstract description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000000120 microwave digestion Methods 0.000 claims abstract description 5
- 238000005352 clarification Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 17
- 238000004131 Bayer process Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000000429 sodium aluminium silicate Substances 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
Abstract
The present invention relates to the assay method of effective aluminium and activated silica in a kind of gibbsitic bauxite, comprise the following steps：Weigh the counteracting tank that sample is put into airtight microwave digestion instrument, sodium hydroxide solution is added to be cleared up, digestion solution is transferred to after the completion of clearing up in the beaker for filling hydrochloric acid, heating micro-boiling dissolves hydrated aluminum silicate therein, solution is transferred to volumetric flask constant volume after cooling, mix, the mL of draw solution 10 is in 100 mL volumetric flasks after clarification, add the mol/L HCl of 10 mL 6, use distilled water diluting constant volume, mix, determine the content of Aluminum and activated silica simultaneously with ICP-AES, the content of effective aluminium is drawn by the cubage of Aluminum and activated silica, computing formula：Effective aluminium（%）=Aluminum（%）- k activated silicas（%）, the content of effective aluminium and Aluminum is with Al2O3Meter, the content of activated silica is with SiO2Meter, between 0.90 to 1.10, its optimal value is 1.006 to the span of k.The method that the present invention is provided is easy rapidly and efficiently, can be widely applied to the exploration assessment to gibbsitic bauxite, and adjustment to production technology has directive significance.
Description
Technical field
The invention belongs to effective aluminium in chemical analysis detection technique field, more particularly to a kind of gibbsitic bauxite and
The assay method of activated silica.
Background technology
With the increasingly scarcity of domestic bauxite resource, gibbsitic bauxite is increasingly taken seriously.In three water
Two important indicators whether it is weighed in aluminum stone type bauxite has economic worth are effective aluminium and activated silica, and effective aluminium refers to
Under alumina producing Bayer process process conditions, the content of the net aluminum oxide that can be extracted from ore, activated silica refer to
Under alumina producing Bayer process process conditions, the content of the compound of the silicon that can be chemically reacted with caustic alkali.
The measure of effective aluminium and activated silica is generally published in using Austrian Anton Paar company in gibbsitic bauxite
Periodical《Rock and mineral testing》Method of the 2nd phase of volume 26 in 2007, adds NaOH solution to disappear sample using microwave dissolver
Xie Hou, by digestion solution is diluted to 500 mL and mixes with water, takes 10 mL and is surveyed with ICP-AES
The content of fixed effective aluminium, is subsequently adding in the surplus solution of the 10 mL dilutions of mL HCl to 500, mixes, and acidifying makes precipitation
Sodium aluminosilicate dissolves again, takes the content of a small amount of solution inductance coupled plasma-atomic emission spectrographic determination activated silica.
In this way, the measure of effective aluminium and activated silica can not be carried out simultaneously, it is impossible to play inductively coupled plasma atom hair
Penetrating spectroscopic methodology can be while determines the advantage of multiple element, to overcome above-mentioned deficiency, this patent in gibbsitic bauxite to having
The assay method of effect aluminium and activated silica is studied.
The content of the invention
The present invention is the need for being based on using Bayer process treatment gibbsitic bauxite production alumina technology and to existing
The assay method of effective aluminium and activated silica in the gibbsitic bauxite that the supplement for having analysis method is improved and proposed.Using visiing
Ear method treatment bauxite into alumina when, due to after the silicon dissolution in siliceous mineral in gibbsitic bauxite with solution in
Sodium aluminate reaction generation hydrated aluminum silicate enter red mud, the reactive silica of 1kg in gibbsitic bauxite
The aluminum oxide for just having 1kg is reacted, but the hydrated aluminum silicate precipitation for being formed can be passed through by dissolving with hydrochloric acid, therefore digestion solution
The content of Aluminum and activated silica can simultaneously be measured using ICP-AES after acidifying, and can be through
Cross the content for calculating effective aluminium, computing formula：Effective aluminium（%）=Aluminum（%）- k activated silicas（%）, effective aluminium and dissolution
The content of aluminium is with Al2O3Meter, the content of activated silica is with SiO2Meter, the span of k between 0.90 to 1.10, its optimal value
It is 1.006.
The purpose of the present invention is achieved through the following technical solutions.
Wrapped successively the step of the assay method of effective aluminium and activated silica, its continuous mode in a kind of gibbsitic bauxite
Include：
（1）The counteracting tank that 0.5000 g samples are put into airtight microwave digestion instrument is weighed, adds the g/L NaOH of 10.0 mL 90 molten
Liquid, is shaken up, and instrument is cleared up in loading, is input into heating curve, and 30 min are cleared up at 145 DEG C；
（2）Digestion solution is transferred in the 250 mL beakers for filling the mol/L HCl of 100.0 mL 0.6, min is molten for heating micro-boiling 5
Hydrated aluminum silicate therein is solved, solution is transferred to 250 mL volumetric flasks after cooling, use distilled water diluting constant volume, mixed, clarification
The mL of draw solution 10 adds the mol/L HCl of 10 mL 6 in 100 mL volumetric flasks afterwards, uses distilled water diluting constant volume, mixes；
（3）Al is used during measure2O3Standard curve series is for 0,20,100,200ug/ml, SiO2Standard curve series is for 0,2,
10th, 50ug/ml, the content of Aluminum and activated silica is determined using ICP-AES simultaneously；
（4）The content of effective aluminium draws by the cubage of the content and activated silica of Aluminum, computing formula：Effective aluminium（%）=molten
Go out aluminium（%）- k activated silicas（%）, the content of effective aluminium and Aluminum is with Al2O3Meter, the content of activated silica is with SiO2Meter, k's takes
Value scope be 0.90 to 1.10 between, its optimal value be 1.006.
The assay method of effective aluminium and activated silica in a kind of gibbsitic bauxite of the present invention, it is characterised in that measure has
The process of the content of effect aluminium and activated silica is the content by being calculated effective aluminium, computing formula：Effective aluminium（%）=Aluminum
（%）- k activated silicas（%）, the content of effective aluminium and Aluminum is with Al2O3Meter, the content of activated silica is with SiO2Meter, the value model of k
Enclose between 0.90 to 1.10, its optimal value is 1.006.
The content of effective aluminium and activated silica in energy Accurate Determining gibbsitic bauxite of the invention, the method is easy to be quick
Efficiently, the exploration assessment to gibbsitic bauxite is can be widely applied to, while there is the adjustment to production technology guidance to anticipate
Justice.
Specific embodiment
The assay method of effective aluminium and activated silica in a kind of gibbsitic bauxite, its process is to weigh sample to be put into
The counteracting tank of airtight microwave digestion instrument, adds NaOH solution, shakes up, and instrument is cleared up in loading, is cleared up, and digestion solution is transferred to and is filled
In the beaker of HCl, heating micro-boiling dissolves hydrated aluminum silicate therein, and solution is transferred into volumetric flask constant volume after cooling, mixes, clear
The mL of draw solution 10 adds the mol/L HCl of 10 mL 6 in 100 mL volumetric flasks after clear, uses distilled water diluting constant volume, mixes
It is even, determine the content of Aluminum and activated silica simultaneously with ICP-AES, and by calculating
Go out the content of effective aluminium, computing formula：Effective aluminium（%）=Aluminum（%）- k activated silicas（%）, the content of effective aluminium and Aluminum
With Al2O3Meter, the content of activated silica is with SiO2Meter, the span of k is between 0.90 to 1.10, its optimal value is 1.006.
Concrete operation step includes：
（1）The counteracting tank that 0.5000 g samples are put into airtight microwave digestion instrument is weighed, adds the g/L NaOH of 10.0 mL 90 molten
Liquid, is shaken up, and instrument is cleared up in loading, is input into heating curve, and 30 min are cleared up at 145 DEG C；
（2）Digestion solution is transferred in the 250 mL beakers for filling the mol/L HCl of 100.0 mL 0.6, min is molten for heating micro-boiling 5
Hydrated aluminum silicate therein is solved, solution is transferred to 250 mL volumetric flasks after cooling, use distilled water diluting constant volume, mixed, clarification
The mL of draw solution 10 adds the mol/L HCl of 10 mL 6 in 100 mL volumetric flasks afterwards, uses distilled water diluting constant volume, mixes；
（3）Use Al2O3Standard curve series is for 0,20,100,200ug/ml, SiO2Standard curve series is for 0,2,10,50ug/
Ml, the content of Aluminum and activated silica is determined with ICP-AES simultaneously；
（4）The content of effective aluminium draws by the cubage of the content and activated silica of Aluminum, computing formula：Effective aluminium（%）=molten
Go out aluminium（%）- k activated silicas（%）, the content of effective aluminium and Aluminum is with Al2O3Meter, the content of activated silica is with SiO2Meter, k's takes
Be worth is 1.006.
Claims (2)
1. in a kind of gibbsitic bauxite effective aluminium and activated silica assay method, comprise the following steps：
（1）The counteracting tank that 0.5000 g samples are put into airtight microwave digestion instrument is weighed, adds the g/L NaOH of 10.0 mL 90 molten
Liquid, is shaken up, and instrument is cleared up in loading, is input into heating curve, and 30 min are cleared up at 145 DEG C；
（2）Digestion solution is transferred in the 250 mL beakers for filling the mol/L HCl of 100.0 mL 0.6, min is molten for heating micro-boiling 5
Hydrated aluminum silicate therein is solved, solution is transferred to 250 mL volumetric flask constant volumes after cooling, mixed, draw solution 10 after clarification
ML adds the mol/L HCl of 10 mL 6 in 100 mL volumetric flasks, uses distilled water diluting constant volume, mixes；
（3）Use Al2O3Standard curve series is for 0,20,100,200ug/ml, SiO2Standard curve series is for 0,2,10,50ug/
Ml, the content of Aluminum and activated silica is determined with ICP-AES simultaneously；
（4）The content of effective aluminium draws by the cubage of the content and activated silica of Aluminum, computing formula：Effective aluminium（%）=molten
Go out aluminium（%）- k activated silicas（%）.
2. in a kind of gibbsitic bauxite according to claim 1 effective aluminium and activated silica assay method, it is special
The process for levying the content for being the effective aluminium of measure and activated silica is the content by being calculated effective aluminium, effective aluminium and Aluminum
Content with Al2O3Meter, the content of activated silica is with SiO2Meter, in computing formula the span of k be 0.90 to 1.10 between.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362685A (en) * | 2018-01-23 | 2018-08-03 | 中国航发北京航空材料研究院 | The analysis method of element silicon in a kind of measurement rafifinal |
| CN109596547A (en) * | 2018-12-18 | 2019-04-09 | 中钢集团郑州金属制品研究院有限公司 | The spectroscopic methodology of oxide content in a kind of rapid and accurate determination cement |
| CN111272737A (en) * | 2018-12-05 | 2020-06-12 | 核工业理化工程研究院 | Method and application of microwave digestion-ICP-OES for determination of percentage content of multi-elements in high-silicon aluminum alloy |
| CN112179973A (en) * | 2020-09-10 | 2021-01-05 | 河南省有色金属地质勘查总院 | Method for measuring content of effective rare earth elements in gibbsite |
| CN113406022A (en) * | 2021-01-29 | 2021-09-17 | 郑州机械研究所有限公司 | Method for rapidly judging silicon content in alloy |
| CN113447473A (en) * | 2021-06-28 | 2021-09-28 | 中蓝长化工程科技有限公司 | Method for detecting element content in silicate by microwave alkali digestion |
| CN114878493A (en) * | 2022-06-15 | 2022-08-09 | 四川省食品检验研究院 | A kind of method for measuring aluminum content by chrome azure S spectrophotometry |
| CN118993635A (en) * | 2024-08-24 | 2024-11-22 | 合肥工业大学 | Baking-free steaming-free tailing brick and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111272737A (en) * | 2018-12-05 | 2020-06-12 | 核工业理化工程研究院 | Method and application of microwave digestion-ICP-OES for determination of percentage content of multi-elements in high-silicon aluminum alloy |
| CN109596547A (en) * | 2018-12-18 | 2019-04-09 | 中钢集团郑州金属制品研究院有限公司 | The spectroscopic methodology of oxide content in a kind of rapid and accurate determination cement |
| CN112179973A (en) * | 2020-09-10 | 2021-01-05 | 河南省有色金属地质勘查总院 | Method for measuring content of effective rare earth elements in gibbsite |
| CN113406022A (en) * | 2021-01-29 | 2021-09-17 | 郑州机械研究所有限公司 | Method for rapidly judging silicon content in alloy |
| CN113447473A (en) * | 2021-06-28 | 2021-09-28 | 中蓝长化工程科技有限公司 | Method for detecting element content in silicate by microwave alkali digestion |
| CN114878493A (en) * | 2022-06-15 | 2022-08-09 | 四川省食品检验研究院 | A kind of method for measuring aluminum content by chrome azure S spectrophotometry |
| CN118993635A (en) * | 2024-08-24 | 2024-11-22 | 合肥工业大学 | Baking-free steaming-free tailing brick and preparation method thereof |
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Effective date of registration: 20200921 Address after: Group 22 and 23, Taohong village, Dongyuan Town, Qidong City, Nantong City, Jiangsu Province, 226000 Patentee after: Nantong pinglaide Energy Saving Technology Co., Ltd Address before: 467000, No. 12, building 8, welfare Street, Weidong East, Pingdingshan, Henan Patentee before: Ban Junsheng |