Quick judgement method and quick detection method for usability of natural discharging manganese powder for zinc-manganese battery

A determination method and technology for discharging manganese powder, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of no atomic absorption spectrophotometer, uncertainty of composition and content, and inability to give results in time, and achieve It is easy to guide production, good detection effect, and low test conditions.

Active Publication Date: 2019-04-26
SICHUAN HUAJING GUOMAO INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of harmful impurities is particularly important, which is related to whether the batch of materials can be used. However, there are many soluble harmful impurity elements in the natural discharge manganese powder, which takes a long time to detect and requires more testing equipment. In fact, most of the zinc Manganese dry battery manufacturers are unable to afford these testing equipment, let alone atomic absorption spectrophotometers, and specifying inspection or using traditional chemical analysis methods, not only the process is complicated, time-consuming, and the results cannot be given in time, what's more, different mine sites and different batches The composition and content of harmful impurities in natural discharge manganese powder are uncertain

Method used

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  • Quick judgement method and quick detection method for usability of natural discharging manganese powder for zinc-manganese battery
  • Quick judgement method and quick detection method for usability of natural discharging manganese powder for zinc-manganese battery
  • Quick judgement method and quick detection method for usability of natural discharging manganese powder for zinc-manganese battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] The factory feeds natural discharge manganese powder A, after element content detection, MnO 2 The Fe content is 50.11%, the total Fe content is 9.18%, the soluble Fe content is 0.01%, the Cu content is 0.0001%, and the soluble heavy metal (calculated as Pb) is 0.001%. The content meets the content requirements of natural discharge manganese powder for making zinc-manganese dry batteries.

[0129] Take the qualified electrolyte (ZnCl 2 16.8%+NH 4 Cl22.5%) 60ml, add 20g of sample A, stir continuously for 0.5h, filter with qualitative filter paper, add the filtrate to the surface-treated bright zinc sheet and heat to boiling on the electric furnace, slightly boil at about 103°C for 30min, take out the zinc sheet, and water Wash it, observe the surface of the zinc sheet is slightly grayish yellow, it can be used. It is consistent with the conclusion of element content detection.

[0130] At the same time, according to the requirements of the national standard "GB T889...

Embodiment 2

[0134] The factory feeds natural discharge manganese powder A, after element content detection, MnO 2 The Fe content is 50.11%, the total Fe content is 9.18%, the soluble Fe content is 0.01%, the Cu content is 0.0001%, and the soluble heavy metal (calculated as Pb) is 0.001%. The content meets the content requirements of natural discharge manganese powder for making zinc-manganese dry batteries.

[0135] Take the qualified electrolyte (ZnCl 2 16.8%+NH 4 Cl22.5%) 60ml, add 20g of sample A, stir continuously for 1.0h, filter with qualitative filter paper, add the filtrate to the surface-treated bright zinc flakes and heat to boiling on the electric furnace, slightly boil at about 103°C for 30min, take out the zinc flakes, and water Wash it, observe that the surface of the zinc sheet is grayish-yellow, and it can be used. It is consistent with the conclusion of element content detection.

[0136] At the same time, according to the requirements of the national standard "GB T8...

Embodiment 3

[0140] The factory feeds natural discharge manganese powder A, after element content detection, MnO 2 The Fe content is 50.11%, the total Fe content is 9.18%, the soluble Fe content is 0.01%, the Cu content is 0.0001%, and the soluble heavy metal (calculated as Pb) is 0.001%. The content meets the content requirements of natural discharge manganese powder for making zinc-manganese dry batteries.

[0141] Take the qualified electrolyte (ZnCl 2 16.8%+NH 4 Cl22.5%) 60ml, add 20g of sample A, stir continuously for 1.5h, filter with qualitative filter paper, add the filtrate to the surface-treated bright zinc sheet and heat it to boiling on the electric furnace, slightly boil at about 103°C for 30min, take out the zinc sheet, and water Wash it, observe that the surface of the zinc sheet is grayish-yellow, and it can be used. It is consistent with the conclusion of element content detection.

[0142] At the same time, according to the requirements of the national standard "GB T...

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Abstract

The invention provides a judgment method for usability of natural discharging manganese powder. The method comprises the following steps of firstly, mixing the natural discharging manganese powder anda ZnCl2-NH4Cl solution, and afterwards, conducting filtering to obtain a filtrate; putting zinc sheets into the filtrate obtained in the last step, heating the filtrate until the filtrate is boiled,and obtaining the zinc sheets with surface properties; finally, according to the surface properties of the zinc sheets, judging the usability of the natural discharging manganese powder. The judgmentmethod for the usability of the natural discharging manganese powder is very simple and quick, low in cost and capable of quickly judging the content of harmful heavy metal impurities in the natural discharging manganese powder, so that whether or not the natural discharging manganese powder can be used for battery production is judged. According to the judgement method, judgement is made according to the surface properties of the treated zinc sheets, the content of the harmful heavy metal impurities in the natural discharging manganese powder can be comprehensively judged, the method is simple and effective, the result can be given at the day of feeding, the requirement for test conditions is low, guide production and industrial application and popularization are facilitated, and the method has important practical significance.

Description

technical field [0001] The invention belongs to the technical field of production of zinc-manganese dry batteries, and relates to an availability determination method and an availability detection method of naturally discharged manganese powder, and in particular to a rapid determination method and a rapid detection method of the availability of natural discharge manganese powder for zinc-manganese batteries. Background technique [0002] Chemical power sources can be divided into three types: primary batteries, secondary batteries (also known as storage batteries) and fuel cells. Primary batteries are batteries that are discarded after being used once. Among them, the most commonly used primary batteries are zinc-manganese dry batteries, also known as Carbon battery, full name of neutral zinc-manganese dioxide dry battery (zinc-manganese dry battery), is a primary battery with manganese dioxide as the positive electrode, zinc as the negative electrode, and ammonium chloride ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01R31/385
CPCG01N21/78
Inventor 孙军
Owner SICHUAN HUAJING GUOMAO INDAL
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