CN106124356A - Dioxide-containing silica abbreviated analysis method in limestone - Google Patents
Dioxide-containing silica abbreviated analysis method in limestone Download PDFInfo
- Publication number
- CN106124356A CN106124356A CN201610415824.4A CN201610415824A CN106124356A CN 106124356 A CN106124356 A CN 106124356A CN 201610415824 A CN201610415824 A CN 201610415824A CN 106124356 A CN106124356 A CN 106124356A
- Authority
- CN
- China
- Prior art keywords
- limestone
- dioxide
- analysis method
- containing silica
- sample
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of dioxide-containing silica abbreviated analysis method in limestone, comprise the following steps: (1) sample pretreatment；(2) sample and acid solution reaction；(3) sample fully decomposes and filters；(4) weigh and calculate., there is following advantage in dioxide-containing silica abbreviated analysis method in a kind of limestone that the present invention provides: the abbreviated analysis method of (1) present invention, has feature fast and efficiently, significantly reduces whole analysis process duration.(2), in the operation of abbreviated analysis method of the present invention, it is not related to the severe corrosive acid solution such as Fluohydric acid., concentrated sulphuric acid, improves safety.The method operation temperature of the present invention is low, can save the energy, easy temperature control system, it is to avoid high temperature injury.(3) using the inventive method, the kind of equipment needed thereby and medicine is few, and medicine is low with the demand of equipment, saves production cost.(4) simple to operate, condition is easy to control, and analysis result is accurate, it is possible to meets power plant desulfurization limestone and checks and accepts needs.
Description
Technical field
The present invention relates to dioxide-containing silica abbreviated analysis method in limestone, particularly belong to silicon dioxide analytical technology neck
Territory.
Background technology
Limestone/lime gypsum method flue gas desulfurization technique is widely used in thermal power plant, if in limestone two
Silica content is high, will cause stone attrition, and loss increases, so usually requiring that in limestone, dioxide-containing silica is less than
2%.Each power plant limestone checking and accepting amount greatly, the longest, always puzzlement power plant laboratorian, especially to titanium dioxide in limestone
The examination analysis of silicone content, intricate operation is heavy, by being analyzed process of the test, finds " GB/T176-2008 cement
Credit analysis method " basis point analysis method (abbreviation basic taper method) needs more than 20 hour, " GB/T5762-2012 building materials limestone,
Quick lime and Calx chemical analysis method " in alternative method be also required to more than ten hour, and process of the test uses multiple
Concentrated acid, high-temperature service etc. easily cause personal injury accident.Therefore, research one can quickly, dioxy in efficient analysis limestone
SiClx method Han quantitative analysis, it appears particularly necessary.
Summary of the invention
For solving the deficiencies in the prior art, it is an object of the invention to provide silicon dioxide abbreviated analysis in a kind of limestone
Method, can analyze dioxide-containing silica in limestone fast and efficiently.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that:
Dioxide-containing silica abbreviated analysis method in limestone, comprises the following steps:
(1) sample pretreatment: take limestone sample and sieve post-drying, standby；
(2) sample and acid solution reaction: after accurately weighing appropriate pretreatment, sample is placed in container, is initially charged hydrochloric acid solution
Stir, be heated to boiling, then instill concentrated nitric acid, stir, be heated to insoluble matter constant, obtain mixed liquor；
(3) sample fully decomposes and filters: first dilute mixed liquor, when dilution adds water, is added along chamber wall,
Avoid sample loss, reheat boiling, until solution is transparent so that sample fully decomposes；Subsequently with drying to constant weight in advance
Quantitative filter paper filters at a slow speed, washs to precipitate without chloride ion with the demineralized water of heat；
(4) weigh and calculate: by step (3) filters gained precipitate and filter paper, being placed in and dry in advance to constant weight
In weighing botle, dry at a set temperature and weigh to constant weight, and result of calculation.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (1), takes limestone sample and crosses 150 μm sides
Hole sizer, dries 2h at 105 DEG C～110 DEG C, standby.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (2), hydrochloric acid solution is the body of hydrochloric acid and water
Long-pending than the solution being 1～3 1.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (2), testing sample and the matter of hydrochloric acid solution
Amount volume ratio is: 1～2g 10～15mL；Testing sample with the mass volume ratio of concentrated nitric acid is: 1～3g 0.5～1mL.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (3), dilute mixed liquor is dilute for adding water
Release 3～4 times to former mixeding liquid volume.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (3), washs to precipitate without chloride ion
It is to judge by the following method: with the silver nitrate solution inspection cleaning mixture that mass percentage concentration is 5%, generate to without white precipitate
Till.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (3), quantitative filter paper is in advance 105 at a slow speed
DEG C～110 DEG C at dry to constant weight.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (4), the drying temperature in advance of weighing botle and
Design temperature is 105 DEG C～110 DEG C.
Dioxide-containing silica abbreviated analysis method in aforementioned limestone, in step (4), result of calculation is entered by below equation
Row calculates:
In formula, WAcid non-soluble substance% refers to the percentage composition of acid non-soluble substance in limestone, and W1 refers to dry to constant weight title under design temperature
Measuring bottle, filter paper and sedimentary gross mass, g；W refers to the gross mass of weighing botle and the filter paper dried in advance to constant weight, g；G refers to treat
Test sample quality, g.
Reasonable, effective in order to ensure technical solution of the present invention, inventor has carried out a series of experiment.
1, analyzing method selects
Silicon dioxide content test in limestone, can be selected for following eight kinds of methods by analysis, as shown in table 1.
Table 1
| Numbering | Method is sketched |
| 1.1 | Colorimetric method for determining after sodium hydroxide is melted |
| 1.2 | Colorimetric method for determining after hydrochloric acid+nitric acid dissolving |
| 1.3 | Colorimetric method for determining after hydrochloric acid+nitric acid+hydrofluoric acid dissolution |
| 2.1 | Insoluble matter is claimed after dissolving with hydrochloric acid |
| 2.2 | Hydrochloric acid+nitric acid claims insoluble matter after dissolving |
| 2.3 | Insoluble matter is claimed after hydrochloric acid+nitric acid+hydrofluoric acid dissolution |
| 3.1 | Dissolving with hydrochloric acid, claims insoluble matter+filtrate colorimetric |
| 3.2 | Hydrochloric acid+nitric acid dissolves, and claims insoluble matter weight+filtrate colorimetric |
Comparing method in table 1, result is as shown in table 2.
Table 2
From in table 2, the method selecting scheme 2.2, the i.e. present invention, temperature control requirement is low, length during analysis.
2, the selection of concentration of hydrochloric acid
When using concentrated hydrochloric acid as solvent, although limestone is had preferable solvability, but concentrated hydrochloric acid self character
(Mao Baiyan), generate carbon dioxide (emitting BAIPAO), on the one hand excessive concentration with calcium carbonate reaction in limestone sample, be unfavorable for behaviour
The safety made, is on the other hand unfavorable for the time that observation reaction terminates.The present invention uses the volume ratio of hydrochloric acid and water be 1～
The hydrochloric acid solution of 31, not only has preferable solvability to limestone, does not emit white cigarette simultaneously, is conducive to the judgement that reaction terminates.
3, the determination of hydrochloric acid solution consumption
In the present invention, selection testing sample with the mass volume ratio of hydrochloric acid solution is: 1～2g 10～15mL.Hydrochloric acid solution
Consumption is few, then can not be dissolved by soluble ingredient complete, cause insolubles content virtual height, affect the accuracy of measurement result；Hydrochloric acid
When solution usage is too much, waste can be caused, promote cost.
4, the determination of concentrated nitric acid addition.
The present invention adds concentrated nitric acid, jointly acts on hydrochloric acid solution, make great majority in addition to silica in limestone
Composition dissolves.Selection testing sample with the mass volume ratio of concentrated nitric acid is: 1～3g 0.5～1mL.Both the waste of solvent had been avoided
Cause environmental pollution, can fully dissolve again soluble ingredient, it is ensured that measurement result accurate.
According to limestone composition and chemical property thereof, in limestone, major part composition all can be by beyond dehydrogenation fluoric acid
Other acid is dissolved, and gelling silicon dioxide but can not be dissolved, so acid non-soluble substance major part is gelling silicon dioxide and pole
Other composition a small amount of, acid non-soluble substance content can be approximated to be dioxide-containing silica.Therefore the abbreviated analysis method of the present invention, passes through
Acid non-soluble substance content determines dioxide-containing silica in limestone.
Dioxide-containing silica in limestone, result such as Fig. 1 and Biao 3 institute is analyzed respectively by basic taper method and the inventive method
Show.As can be known from Fig. 1, basic taper method measures dioxide-containing silica and simplified method of the present invention measure acid non-soluble substance content difference heteropole
Little.Show to determine dioxide-containing silica in limestone by measuring acid non-soluble substance content.In actual field works, Calx
In stone, dioxide-containing silica is less than 2%, can meet production needs.By table 3 statistical data it can be seen that abbreviated analysis method
Contrasting with basic taper method, mean absolute error is 0.10%, and average relative error is 6.27%, although relative error is bigger, but
Because dioxide-containing silica is relatively low in limestone, absolute error is the most little, shows the abbreviated analysis method by the present invention, measures
Result is accurate, reproducible, and stability is high, it is possible to meet onsite acceptance immediately, needs fast and accurately.
Table 3 basic taper method measures silicon dioxide numerical value deck watch with simplified method of the present invention
The invention have benefit that: dioxide-containing silica abbreviated analysis side in a kind of limestone that the present invention provides
, there is following advantage in method:
(1) the abbreviated analysis method of the present invention, has feature fast and efficiently.With traditional benchmark method length of testing speech 22.5h
Comparing, the inventive method the most only needs 8h can complete to analyze, and significantly reduces whole analysis process duration.
(2) in the operation of abbreviated analysis method of the present invention, it is not related to the severe corrosive acid solution such as Fluohydric acid., concentrated sulphuric acid, improves
Safety.Compared with use 950 DEG C in traditional benchmark method～1000 DEG C of high temperature furnaces, the method operation temperature of the present invention is low, and one
Aspect saves the energy, reduces energy consumption, on the other hand easy temperature control system, it is to avoid high temperature injury.
(3) using the inventive method, the kind of equipment needed thereby and medicine is few, and medicine is low with the demand of equipment, saves raw
Produce cost.
(4) the inventive method is reproducible, and stability is high, applied widely, goes in most of limestone two
Silica content is analyzed.
(5) the inventive method is simple to operate, and condition is easy to control, and analysis result is accurate, it is possible to meets power plant's limestone and checks and accepts
Need.
Accompanying drawing explanation
Fig. 1 is the comparison diagram of dioxide-containing silica in the inventive method and basic taper method mensuration limestone.
The implication of reference in figure: A-the inventive method；B-basic taper method.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further introduced.
Embodiment 1
Dioxide-containing silica abbreviated analysis method in limestone, comprises the following steps:
(1) sample pretreatment: take limestone sample and cross 150 μm square hole screens, dries 2h at 105 DEG C～110 DEG C, standby；
(2) sample and acid solution reaction: after accurately weighing appropriate pretreatment, sample is placed in container, is initially charged hydrochloric acid solution
Stir and be heated to boiling, then instill concentrated nitric acid, stir, be heated to that insoluble matter is constant obtains mixed liquor；Described hydrochloric acid
Solution is the solution that volume ratio is 11 of hydrochloric acid and water, and testing sample with the mass volume ratio of hydrochloric acid solution is: 1g 10mL；Treat
Test sample product with the mass volume ratio of concentrated nitric acid are: 1g 0.5mL；
(3) sample fully decomposes and filters: be first diluted with water to 3 times of former mixeding liquid volume, reheats boiling, to solution
Transparent；Filter with the quantitative filter paper at a slow speed dried in advance to constant weight subsequently, wash to nothing in precipitate with the demineralized water of heat
Chloride ion；
(4) weigh and calculate: by step (3) filters gained precipitate and filter paper, being placed in and dry at 105 DEG C in advance
To the weighing botle of constant weight, dry at 105 DEG C and weigh to constant weight, and result of calculation.Wherein, quantitative filter paper is pre-at a slow speed
First dry to constant weight at 105 DEG C.
Result of calculation is calculated by below equation:
In formula, WAcid non-soluble substance% refers to the percentage composition of acid non-soluble substance in limestone, and W1 refers to dry to constant weight title under design temperature
Measuring bottle, filter paper and sedimentary gross mass, g；W refers to the gross mass of weighing botle and the filter paper dried in advance to constant weight, g；G refers to treat
Test sample quality, g.
Embodiment 2
Dioxide-containing silica abbreviated analysis method in limestone, comprises the following steps:
(1) sample pretreatment: take limestone sample and cross 150 μm square hole screens, dries 2h at 105 DEG C～110 DEG C, standby；
(2) sample and acid solution reaction: after accurately weighing appropriate pretreatment, sample is placed in container, is initially charged hydrochloric acid solution
Stir and be heated to boiling, then instill concentrated nitric acid, stir, be heated to that insoluble matter is constant obtains mixed liquor；Described hydrochloric acid
Solution is the solution that volume ratio is 31 of hydrochloric acid and water, and testing sample with the mass volume ratio of hydrochloric acid solution is: 2g 15mL；Treat
Test sample product with the mass volume ratio of concentrated nitric acid are: 3g 1mL；
(3) sample fully decomposes and filters: be first diluted with water to 4 times of former mixeding liquid volume, reheats boiling, to solution
Transparent；Filter with the quantitative filter paper at a slow speed dried in advance to constant weight subsequently, wash to nothing in precipitate with the demineralized water of heat
Chloride ion；
(4) weigh and calculate: by step (3) filters gained precipitate and filter paper, being placed in and dry at 110 DEG C in advance
To the weighing botle of constant weight, dry at 110 DEG C and weigh to constant weight, and result of calculation.Wherein, quantitative filter paper is pre-at a slow speed
First dry to constant weight at 110 DEG C.
Result of calculation is calculated by below equation:
In formula, WAcid non-soluble substance% refers to the percentage composition of acid non-soluble substance in limestone, and W1 refers to dry to constant weight title under design temperature
Measuring bottle, filter paper and sedimentary gross mass, g；W refers to the gross mass of weighing botle and the filter paper dried in advance to constant weight, g；G refers to treat
Test sample quality, g.
Embodiment 3
Dioxide-containing silica abbreviated analysis method in limestone, comprises the following steps:
(1) sample pretreatment: take limestone sample and cross 150 μm square hole screens, dries 2h at 105 DEG C～110 DEG C, standby；
(2) sample and acid solution reaction: after accurately weighing appropriate pretreatment, sample is placed in container, is initially charged hydrochloric acid solution
Stir and be heated to boiling, then instill concentrated nitric acid, stir, be heated to that insoluble matter is constant obtains mixed liquor；Described hydrochloric acid
Solution is the solution that volume ratio is 21 of hydrochloric acid and water, and testing sample with the mass volume ratio of hydrochloric acid solution is: 1.5g 12mL；
Testing sample with the mass volume ratio of concentrated nitric acid is: 2g 0.8mL；
(3) sample fully decomposes and filters: be first diluted with water to 3.5 times of former mixeding liquid volume, reheats boiling, to molten
Liquid is transparent；Filter with the quantitative filter paper at a slow speed dried in advance to constant weight subsequently, with in the demineralized water washing of heat to precipitate
Without chloride ion；Wash to precipitate is judgement by the following method without chloride ion: be the silver nitrate of 5% by mass percentage concentration
Solution inspection cleaning mixture, to generating without white precipitate.
(4) weigh and calculate: by step (3) filters gained precipitate and filter paper, being placed in and dry at 110 DEG C in advance
To the weighing botle of constant weight, dry at 105 DEG C and weigh to constant weight, and result of calculation.Wherein, quantitative filter paper is pre-at a slow speed
First dry to constant weight at 110 DEG C.
Result of calculation is calculated by below equation:
In formula, WAcid non-soluble substance% refers to the percentage composition of acid non-soluble substance in limestone, and W1 refers to dry to constant weight title under design temperature
Measuring bottle, filter paper and sedimentary gross mass, g；W refers to the gross mass of weighing botle and the filter paper dried in advance to constant weight, g；G refers to treat
Test sample quality, g.
Claims (9)
1. dioxide-containing silica abbreviated analysis method in limestone, it is characterised in that: comprise the following steps:
(1) sample pretreatment: take limestone sample and sieve post-drying, standby；
(2) sample and acid solution reaction: after accurately weighing appropriate pretreatment, sample is placed in container, is initially charged hydrochloric acid solution stirring
Uniformly, it is heated to boiling, then instills concentrated nitric acid, stir, be heated to that insoluble matter is constant obtains mixed liquor；
(3) sample fully decomposes and filters: first dilute mixed liquor, reheats boiling, until solution is transparent；Subsequently with in advance
Drying is filtered to the quantitative filter paper at a slow speed of constant weight, washs to precipitate without chloride ion with the demineralized water of heat；
(4) weigh and calculate: by step (3) filters gained precipitate and filter paper, being placed in and dry the weighing to constant weight in advance
In Ping, dry at a set temperature and weigh to constant weight, and result of calculation.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(1) in, take limestone sample and cross 150 μm square hole screens, at 105 DEG C～110 DEG C, dry 2h, standby.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(2), in, hydrochloric acid solution is the solution that volume ratio is 1～3 1 of hydrochloric acid and water.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(2), in, testing sample with the mass volume ratio of hydrochloric acid solution is: 1～2g 10～15mL；Testing sample and the quality of concentrated nitric acid
Volume ratio is: 1～3g 0.5～1mL.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(3), in, dilute mixed liquor is be diluted with water to former mixeding liquid volume 3～4 times.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(3), in, washing to precipitate without chloride ion is to judge by the following method: molten with the silver nitrate that mass percentage concentration is 5%
Liquid inspection cleaning mixture, to generating without white precipitate.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(3), in, quantitative filter paper is dried to constant weight in advance at 105 DEG C～110 DEG C at a slow speed.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(4), in, the drying temperature in advance of weighing botle and design temperature are 105 DEG C～110 DEG C.
Dioxide-containing silica abbreviated analysis method in limestone the most according to claim 1, it is characterised in that: described step
(4), in, result of calculation is calculated by below equation:
In formula, WAcid non-soluble substance% refers to the percentage composition of acid non-soluble substance in limestone, and W1 refers to dry to constant weight weighing under design temperature
Bottle, filter paper and sedimentary gross mass, g；W refers to the gross mass of weighing botle and the filter paper dried in advance to constant weight, g；G refers to be measured
Sample quality, g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415824.4A CN106124356A (en) | 2016-06-14 | 2016-06-14 | Dioxide-containing silica abbreviated analysis method in limestone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610415824.4A CN106124356A (en) | 2016-06-14 | 2016-06-14 | Dioxide-containing silica abbreviated analysis method in limestone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106124356A true CN106124356A (en) | 2016-11-16 |
Family
ID=57270737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415824.4A Pending CN106124356A (en) | 2016-06-14 | 2016-06-14 | Dioxide-containing silica abbreviated analysis method in limestone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106124356A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817189A (en) * | 2017-12-07 | 2018-03-20 | 福州大学 | A kind of " acid bubble partition method " suitable for the decryption of ancient tabia formula |
| CN108387479A (en) * | 2018-02-26 | 2018-08-10 | 浙江安联检测技术服务有限公司 | A kind of method of free silica content in detection air |
| CN114414426A (en) * | 2021-12-29 | 2022-04-29 | 合肥工业大学 | Method for measuring slurry wrapping degree on surface of reclaimed sand |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621030A (en) * | 2012-03-31 | 2012-08-01 | 武汉钢铁(集团)公司 | Method for determining silicon dioxide in limestone and dolomite by using gravimetric method |
| CN102735820A (en) * | 2012-07-06 | 2012-10-17 | 武汉钢铁(集团)公司 | Method for analyzing limestone and dolomite samples at low cost |
| CN103528912A (en) * | 2013-09-18 | 2014-01-22 | 刘俊菊 | Rapid system analysis for limestone and dolomite |
| CN103728261A (en) * | 2013-12-14 | 2014-04-16 | 武钢集团昆明钢铁股份有限公司 | Fast and accurate detection method for silicon dioxide content in limestone, kalk and dolomite |
-
2016
- 2016-06-14 CN CN201610415824.4A patent/CN106124356A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621030A (en) * | 2012-03-31 | 2012-08-01 | 武汉钢铁(集团)公司 | Method for determining silicon dioxide in limestone and dolomite by using gravimetric method |
| CN102735820A (en) * | 2012-07-06 | 2012-10-17 | 武汉钢铁(集团)公司 | Method for analyzing limestone and dolomite samples at low cost |
| CN103528912A (en) * | 2013-09-18 | 2014-01-22 | 刘俊菊 | Rapid system analysis for limestone and dolomite |
| CN103728261A (en) * | 2013-12-14 | 2014-04-16 | 武钢集团昆明钢铁股份有限公司 | Fast and accurate detection method for silicon dioxide content in limestone, kalk and dolomite |
Non-Patent Citations (6)
| Title |
|---|
| JIANGLIHUI1113: "沉淀法白炭黑SiO2含量的测定", 《百度文库 HTTPS://WENKU.BAIDU.COM/VIEW/D7CB3428DE80D4D8D15A4FC0.HTML》 * |
| 任继明等: "《水泥生产质量和控制》", 30 June 2014, 武汉大学出版社 * |
| 刘文长等: "《水泥及其原燃料化验方法与设备》", 30 June 2009, 中国建材工业出版社 * |
| 曾旭辉等: "氯化铵重量法分析步骤的简化探讨", 《水泥工程》 * |
| 魏琴等: "《工业分析》", 31 January 2005, 石油化学工业出版社 * |
| 鲁法增: "《水泥生产过程中的质量检验》", 31 October 1996, 中国建材工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817189A (en) * | 2017-12-07 | 2018-03-20 | 福州大学 | A kind of " acid bubble partition method " suitable for the decryption of ancient tabia formula |
| CN108387479A (en) * | 2018-02-26 | 2018-08-10 | 浙江安联检测技术服务有限公司 | A kind of method of free silica content in detection air |
| CN114414426A (en) * | 2021-12-29 | 2022-04-29 | 合肥工业大学 | Method for measuring slurry wrapping degree on surface of reclaimed sand |
| CN114414426B (en) * | 2021-12-29 | 2024-02-09 | 合肥工业大学 | Method for measuring packing degree of slurry on surface of reclaimed sand |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102331422B (en) | Process for continuously and rapidly determining components in desulfurization gypsum | |
| CN106124356A (en) | Dioxide-containing silica abbreviated analysis method in limestone | |
| CN104634856B (en) | The detection method of chloride ion content in sea sand | |
| CN102213704A (en) | Method for measuring contents of silicon-calcium elements in silicon-calcium alloy | |
| CN104849173B (en) | A kind of method for determining desulfurated plaster sulfite calcium and calcium carbonate content | |
| CN107300601A (en) | A kind of assay method of flyash ammonium ion content | |
| CN106053435A (en) | ICP-AES determination method for contents of potassium, sodium, calcium and magnesium in plants | |
| CN106324185B (en) | A kind of assay method of Emulsion of UPR acid value | |
| CN105973822A (en) | Method for determining content of silver, copper, lead and zinc elements in gold concentrate | |
| CN106092922A (en) | The detection method of silicon dioxide in carbide slag | |
| CN101655486B (en) | Method for detecting f.CaO influencing the utilization of stabilization of steel slag | |
| CN104048963B (en) | The method of testing of sulfate dihydrate calcium content in desulfurated plaster | |
| CN103728269A (en) | Method for near infrared rapid detection of physical and chemical indicators in wine stock | |
| CN103115881A (en) | Method for evaluating and reducing uncertainty value of potassium in iron ore | |
| CN105510181A (en) | Method for quickly detecting total iron grades of hematite concentrates | |
| CN103776672B (en) | The sample treatment and method of determining chemical of a kind of siliceous sandstone | |
| CN102636514A (en) | Temperature titration method for measuring sulfate content of flue gas desulfurization system | |
| CN109030389A (en) | The measuring method of total sulfur in a kind of anode material for lithium-ion batteries | |
| CN104155267A (en) | Method for chemically analyzing content of boron nitride in nickel-based powder material | |
| CN104280368A (en) | Method for efficiently and accurately detecting main content of industrial magnesium oxide | |
| CN104280369A (en) | Method for efficiently and accurately detecting main content of industrial calcium carbonate | |
| CN105466901A (en) | Method for measuring content of principal components in high-zirconium brick | |
| CN102854164B (en) | A kind of method measuring Ca content in carbon materials | |
| CN103592411B (en) | A kind of method of testing of capsule core release amount of concrete chemical self-repair microcapsule | |
| CN107462567A (en) | A kind of method for determining lithium content in zirconium and zircaloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Lina Inventor after: Han Jiayi Inventor after: Li Mingtao Inventor after: Cheng Baiming Inventor after: Liu Bin Inventor after: Zheng Linlin Inventor after: Wang Jingjun Inventor after: Chen Yanli Inventor after: Fan Kaige Inventor before: Pan Lina Inventor before: Han Zheng Inventor before: Li Mingtao Inventor before: Cheng Baiming Inventor before: Liu Bin Inventor before: Zheng Linlin Inventor before: Wang Jingjun Inventor before: Chen Yanli Inventor before: Fan Kaige |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
|
| RJ01 | Rejection of invention patent application after publication |