CN109781930A - Ferrimetry test paper in a kind of nickel electrowinning system solution - Google Patents
Ferrimetry test paper in a kind of nickel electrowinning system solution Download PDFInfo
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- CN109781930A CN109781930A CN201910214826.0A CN201910214826A CN109781930A CN 109781930 A CN109781930 A CN 109781930A CN 201910214826 A CN201910214826 A CN 201910214826A CN 109781930 A CN109781930 A CN 109781930A
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- iron
- color
- test strips
- ferrimetry
- containing liquor
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Abstract
The invention discloses ferrimetry test paper in a kind of nickel electrowinning system solution, it is made of test strips and standard color comparison card, the preparation method of test strips is the following steps are included: Medium speed filter paper is immersed in the potassium rhodanate standard reagent solution that mass percent is 20%-25%, impregnate 10-15min, until filter paper is impregnated with, using naturally dry, test strips are cut into, are bound using plastic seal；The preparation method of standard color comparison card is the following steps are included: pass through total concentration of iron in assay various concentration iron-containing liquor, it is again that iron-containing liquor is fully oxidized, it uses mass percent to carry out titrating the color in determining various concentration iron-containing liquor for the potassium rhodanate standard reagent solution of 20%-25% after oxidation, row's color is finally carried out on card.The present invention can quickly judge levels of the ferric ion in different nickel electrowinning system solutions, improve detection and analysis efficiency, and determining levels difference only within 0.1g/L, adjusts in time during easy to produce and mends iron.
Description
Technical field
The invention belongs to ferrimetry technical fields, and in particular to ferrimetry examination in a kind of nickel electrowinning system solution
Paper.
Background technique
Nickel sulfide soluble anode nickel electrowinning purifies production technology for sulfuric acid, hydrochloric acid mixed acid system, containing there are many gold in system
Belong to ion；In addition, dissolving high arsenic anode plate during nickel electrowinning, arsenic is miscellaneous because outsourcing raw material containing arsenic entrance and is stepped up
Matter enters in anolyte, has been determined that influence of the iron content to arsenic removal is maximum after nickel electrowinning purification arsenic removal process application, domestic at present
Analysis various concentration ferric ion does not have specific fast quantification judgment method, can only by chemical analysis will in system it is total
Iron is chemically examined out, can not quantitatively determine ferric ion concentration, have little significance to operation instruction, therefore in process of production can not
Effectively control ferric ion concentration, nickel electrowinning production process control the product that arsenic removal measure is unstable, and nickel electrowinning is caused to produce
It is continuously exceeded containing arsenic, influence electrolytic nickel quality.
Summary of the invention
The purpose of the present invention is to solve the technical problems existing in the prior art, provide a kind of energy fast quantification judgement
In nickel electrowinning system solution ferric ion concentration and can improve ferric ion test and analyze efficiency nickel electrowinning system solution
Middle ferrimetry test paper.
In order to achieve the above object, the invention adopts the following technical scheme: ferric iron drips in a kind of nickel electrowinning system solution
Determine test paper, be made of test strips and standard color comparison card, the preparation method of test strips is the following steps are included: Medium speed filter paper is immersed in
Mass percent is to impregnate 10-15min in the potassium rhodanate standard reagent solution of 20%-25%, until filter paper is impregnated with, then
By naturally dry, test strips are cut into, are bound using plastic seal；The preparation method of standard color comparison card includes following step
It is rapid: by total concentration of iron in assay various concentration iron-containing liquor, then iron-containing liquor is fully oxidized, matter is used after oxidation
The potassium rhodanate standard reagent solution that amount percentage is 20%-25% carries out titrating the color in determining various concentration iron-containing liquor,
Row's color is finally carried out on card.
Further, a length of 100mm, width 10mm of the test strips.
Further, use mass concentration molten to iron content for 27% hydrogen peroxide in the preparation process of the standard color comparison card
Liquid carries out fully oxidized.
Further, in the preparation process of the standard color comparison card when arranging color according to the concentration of iron-containing liquor from low to high
Successively carry out row's color.
The present invention has the advantages that the present invention passes through preparation test strips and standard color comparison card compared with the prior art,
Test strips dip in solution, are compared according to the color of display with standard color comparison card, can quickly judge ferric ion in difference
Levels in nickel electrowinning system solution are improved instead of the conventional method of the total iron concentration of long-time assay
Efficiency is tested and analyzed, determining levels difference only within 0.1g/L, adjusts in time during easy to produce and mends iron, make
Ferric ion concentration meets the production requirement of different process in production system, it is ensured that ferric iron and pentavalent arsenic in system solution
Concentration ratio can be effectively controlled iron arsenic ratio and arsenic impurities formed sediment progress solid-liquor separation and system is discharged, to realize continuous
The effect for stablizing arsenic removal, solving the problems, such as nickel electrowinning solution system, the exceeded control containing arsenic is difficult for a long time, improves solution chemistry matter
Amount, to produce the electrolytic nickel product of the qualification containing arsenic.Meanwhile post production efficiency can be improved, reduce the fluctuation of arsenic removal process,
Reduce production cost.The present invention is suitable for the sxemiquantitative inspection of ferric ion concentration mixed acid system solution containing various metals
It surveys, has filled up the blank that existing test paper quickly detects high concentration nitration mixture Multicomponent metal ion solution middle and high concentration ferric ion.
Detailed description of the invention
Fig. 1 is the schematic diagram of standard color comparison card of the present invention；
Fig. 2 is the schematic diagram of test paper of the present invention.
Appended drawing reference meaning of the present invention is as follows: 1, standard color comparison card；2, test strips.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
Ferrimetry test paper in a kind of nickel electrowinning system solution, is made of, the system of test strips 2 test strips 2 and standard color comparison card 1
Preparation Method is the following steps are included: Medium speed filter paper is immersed in the potassium rhodanate standard reagent solution that mass percent is 20%, leaching
10-15min is steeped, until filter paper is impregnated with, using naturally dry, cuts and grows into 100mm, the test strips 2 that width is 10mm,
It is bound using plastic seal；The preparation method of standard color comparison card 1 is the following steps are included: pass through assay various concentration iron content
Total concentration of iron in solution, then use mass concentration for 27% hydrogen peroxide that iron-containing liquor is fully oxidized, quality is used after oxidation
The potassium rhodanate standard reagent solution that percentage is 20% carries out titrating determining various concentration (Fe3+: 0.1g/L, 0.2g/L, 0.3g/
L, 0.4g/L, 0.5g/L, 0.6g/L, 0.7g/L, 0.8g/L, 0.9g/L, 1.0g/L, 1.5g/L, 2.0g/L) in iron-containing liquor
Color finally successively carries out row's color according to the concentration of iron-containing liquor on card from low to high.
In use, be inserted into nickel electrowinning system solution after test strips 2 are torn, after 2 color of test strips changes, with
Standard color comparison card 1 is compared, and judges the concentration of ferric ion.
Embodiment 2
Ferrimetry test paper in a kind of nickel electrowinning system solution, is made of, the system of test strips 2 test strips 2 and standard color comparison card 1
Preparation Method is the following steps are included: Medium speed filter paper is immersed in the potassium rhodanate standard reagent solution that mass percent is 25%, leaching
10-15min is steeped, until filter paper is impregnated with, using naturally dry, cuts and grows into 100mm, the test strips 2 that width is 10mm,
It is bound using plastic seal；The preparation method of standard color comparison card 1 is the following steps are included: pass through assay various concentration iron content
Total concentration of iron in solution, then use mass concentration for 27% hydrogen peroxide that iron-containing liquor is fully oxidized, quality is used after oxidation
The potassium rhodanate standard reagent solution that percentage is 25% carries out titrating determining various concentration (Fe3+: 0.1g/L, 0.2g/L,
0.3g/L, 0.4g/L, 0.5g/L, 0.6g/L, 0.7g/L, 0.8g/L, 0.9g/L, 1.0g/L, 1.5g/L, 2.0g/L) iron content is molten
Color in liquid finally successively carries out row's color according to the concentration of iron-containing liquor on card from low to high.
In use, be inserted into nickel electrowinning system solution after test strips 2 are torn, after 2 color of test strips changes, with
Standard color comparison card 1 is compared, and judges the concentration of ferric ion.
Embodiment 3
Ferrimetry test paper in a kind of nickel electrowinning system solution, is made of, the system of test strips 2 test strips 2 and standard color comparison card 1
Preparation Method the following steps are included: by Medium speed filter paper be immersed in mass percent be 22% potassium rhodanate standard reagent solution in,
10-15min is impregnated, until filter paper is impregnated with, using naturally dry, cuts and grows into 100mm, the test strips that width is 10mm
2, it is bound using plastic seal；The preparation method of standard color comparison card 1 by assay various concentration the following steps are included: contained
Total concentration of iron in ferrous solution, then use mass concentration for 27% hydrogen peroxide that iron-containing liquor is fully oxidized, matter is used after oxidation
The potassium rhodanate standard reagent solution that amount percentage is 22% carries out titrating determining various concentration (Fe3+: 0.1g/L, 0.2g/L,
0.3g/L, 0.4g/L, 0.5g/L, 0.6g/L, 0.7g/L, 0.8g/L, 0.9g/L, 1.0g/L, 1.5g/L, 2.0g/L) iron content is molten
Color in liquid finally successively carries out row's color according to the concentration of iron-containing liquor on card from low to high.
In use, be inserted into nickel electrowinning system solution after test strips 2 are torn, after test strips color changes, with
Standard color comparison card 1 is compared, and judges the concentration of ferric ion.
Claims (4)
1. ferrimetry test paper in a kind of nickel electrowinning system solution, is made of test strips and standard color comparison card, it is characterised in that:
The preparation method of test strips is the following steps are included: be immersed in the potassium rhodanate mark that mass percent is 20%-25% for Medium speed filter paper
In quasi- reagent solution, impregnates 10-15min and, using naturally dry, be cut into test strips until filter paper is impregnated with, using
Plastic seal bookbinding；The preparation method of standard color comparison card is the following steps are included: by assay various concentration iron-containing liquor
Total concentration of iron, then it is iron-containing liquor is fully oxidized, use mass percent for the potassium rhodanate standard of 20%-25% after oxidation
Reagent solution carries out titrating the color in determining various concentration iron-containing liquor, and row's color is finally carried out on card.
2. ferrimetry test paper in a kind of nickel electrowinning system solution according to claim 1, it is characterised in that: the examination
A length of 100mm, the width 10mm of paper slip.
3. ferrimetry test paper in a kind of nickel electrowinning system solution according to claim 1, it is characterised in that: the mark
Mass concentration is used to carry out for 27% hydrogen peroxide to iron-containing liquor in the preparation process of quasi- colorimetric card fully oxidized.
4. ferrimetry test paper in a kind of nickel electrowinning system solution according to claim 1, it is characterised in that: the mark
Concentration in the preparation process of quasi- colorimetric card when arranging color according to iron-containing liquor successively carries out row's color from low to high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214826.0A CN109781930A (en) | 2019-03-20 | 2019-03-20 | Ferrimetry test paper in a kind of nickel electrowinning system solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214826.0A CN109781930A (en) | 2019-03-20 | 2019-03-20 | Ferrimetry test paper in a kind of nickel electrowinning system solution |
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| CN109781930A true CN109781930A (en) | 2019-05-21 |
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| CN201910214826.0A Pending CN109781930A (en) | 2019-03-20 | 2019-03-20 | Ferrimetry test paper in a kind of nickel electrowinning system solution |
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| CN1811392A (en) * | 2006-02-22 | 2006-08-02 | 中国农业大学 | Method for detecting ferric iron content in powder material |
| CN201166641Y (en) * | 2007-12-29 | 2008-12-17 | 广东环凯微生物科技有限公司 | Kit for rapidly detecting total iron concentration in water |
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| CN103063659B (en) * | 2012-10-08 | 2015-07-08 | 广东药学院 | Potassium bromated test paper and standard color matching card thereof |
| CN105067601A (en) * | 2015-07-16 | 2015-11-18 | 重庆大学 | Functional test paper film based on nanogold and method for detecting iron ions |
| CN103992324B (en) * | 2014-04-18 | 2016-08-17 | 西北师范大学 | A kind of phenol piperazine acceptor molecule based on naphthyl and the synthesis of reagent paper and identifying Fe3+and H2pO4-in application |
| CN106198523A (en) * | 2016-07-06 | 2016-12-07 | 哈尔滨贝贝凯尔科技发展有限公司 | Trace element detection reagent paper and preparation method thereof |
| CN105319209B (en) * | 2015-02-05 | 2018-02-16 | 温州医科大学 | Iron ion field fast detection method in a kind of water for eliminating reagent blank influence |
| CN108132247A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of ferrous ion inspects paper and its preparation method and application soon |
| CN106757147B (en) * | 2016-11-29 | 2018-09-28 | 金川集团股份有限公司 | A kind of method of arsenic removal in nickel electrowinning mixed acid system |
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2019
- 2019-03-20 CN CN201910214826.0A patent/CN109781930A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811392A (en) * | 2006-02-22 | 2006-08-02 | 中国农业大学 | Method for detecting ferric iron content in powder material |
| CN201166641Y (en) * | 2007-12-29 | 2008-12-17 | 广东环凯微生物科技有限公司 | Kit for rapidly detecting total iron concentration in water |
| CN102539423B (en) * | 2011-12-16 | 2014-09-10 | 辽宁师范大学 | High-acidity precision test paper |
| CN102590202A (en) * | 2012-02-17 | 2012-07-18 | 天津市捷威动力工业有限公司 | Measuring method of iron |
| CN103063659B (en) * | 2012-10-08 | 2015-07-08 | 广东药学院 | Potassium bromated test paper and standard color matching card thereof |
| CN103992324B (en) * | 2014-04-18 | 2016-08-17 | 西北师范大学 | A kind of phenol piperazine acceptor molecule based on naphthyl and the synthesis of reagent paper and identifying Fe3+and H2pO4-in application |
| CN105319209B (en) * | 2015-02-05 | 2018-02-16 | 温州医科大学 | Iron ion field fast detection method in a kind of water for eliminating reagent blank influence |
| CN105067601A (en) * | 2015-07-16 | 2015-11-18 | 重庆大学 | Functional test paper film based on nanogold and method for detecting iron ions |
| CN105067601B (en) * | 2015-07-16 | 2017-07-07 | 重庆大学 | A kind of functionalization test paper film based on nm of gold and the method for detecting iron ion |
| CN106198523A (en) * | 2016-07-06 | 2016-12-07 | 哈尔滨贝贝凯尔科技发展有限公司 | Trace element detection reagent paper and preparation method thereof |
| CN106757147B (en) * | 2016-11-29 | 2018-09-28 | 金川集团股份有限公司 | A kind of method of arsenic removal in nickel electrowinning mixed acid system |
| CN108132247A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of ferrous ion inspects paper and its preparation method and application soon |
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Application publication date: 20190521 |