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Manganese ore phase analyzing method

A technology of phase analysis and manganese ore, which is applied in the preparation of test samples, soil material testing, color/spectral characteristic measurement, etc., can solve the problems of serious cross-phase, low efficiency, large error, etc., and achieve large error , Improve accuracy and reduce the effect of series phase

Inactive Publication Date: 2016-08-17
SHANDONG INST OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to eliminate the deficiencies and shortcomings of the above-mentioned prior art, and provide a method for phase analysis of manganese ore, which solves the problems of large errors, serious series of phases and low efficiency in the traditional method of phase analysis of manganese ore

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Experimental program
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Effect test

Embodiment 1

[0030] (1) Weigh 0.1g of 160 mesh rhodochrosite and place it in a 100mL beaker, in which the manganese content is 21.08%, add 50mL of aluminum nitrate solution with a concentration of 40g / L, cover with a watch glass, put it into a boiling water bath, After the water boils again, start timing and stir once every 8 minutes (note that after the water in the water bath is reduced, additional boiling water should be added), bathe in water for 40 minutes, and filter with slow quantitative filter paper (in order to prevent diafiltration, add water to the filter paper). filter pulp), collect the filter residue, and determine the manganese carbonate phase in the filtrate;

[0031] (2) Put the filter residue described in step (1) together with the filter paper into the original beaker, add 50mL 30g / L hydroxylamine sulfate-1% sulfuric acid solution, put it into the boiling water bath, wait for the water to boil again, start timing, Stir once every 10 minutes, take a water bath for 20 min...

Embodiment 2

[0034] (1) Weigh 0.2g of 200 mesh rhodochrosite and place it in a 100mL beaker, in which the manganese content is 19.77%, add 50mL of aluminum nitrate solution with a concentration of 50g / L, cover with a watch glass, put it in a 95°C water bath, etc. After the water temperature reaches 95°C again, start timing and stir once every 10 minutes (note that after the water in the water bath is reduced, add hot water at 95°C), bathe in water for 60 minutes, and filter with slow quantitative filter paper (in order to prevent diafiltration, Add filter pulp to the filter paper), collect the filter residue, and measure the manganese carbonate phase in the filtrate;

[0035] (2) Put the filter residue described in step (1) together with the filter paper into the original beaker, add 50mL 30g / L hydroxylamine sulfate-3% sulfuric acid solution, put it in a 95°C water bath, wait until the water temperature reaches 95°C again, start timing , stirring once every 10 minutes, water bath for 30 mi...

Embodiment 3

[0038] (1) Weigh 0.1g of 150-mesh manganese ore and place it in a 100mL beaker, in which the manganese content is 46.34%, add 50mL of aluminum nitrate solution with a concentration of 30g / L, cover with a watch glass, and put it into a boiling water bath. After the water boils again, start timing, and stir once every 10 minutes (note that after the water in the water bath is reduced, additional boiling water should be added), bathe in water for 70 minutes, and filter with slow quantitative filter paper (in order to prevent diafiltration, add water to the filter paper). filter pulp), collect the filter residue, and determine the manganese carbonate phase in the filtrate;

[0039] (2) Put the filter residue described in step (1) together with the filter paper into the original beaker, add 50mL 50g / L hydroxylamine sulfate-3% sulfuric acid solution, put it into the boiling water bath, wait for the water to boil again, start timing, Stir once every 10 minutes, take a water bath for ...

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Abstract

The invention relates to an analysis determination method for specific compounds in ore, in particular to a manganese ore phase analyzing method. The manganese ore phase analyzing method is characterized in by comprising the following steps that firstly, manganese ore is weighed and smashed; secondly, an aluminum nitrate aqueous solution is added into the smashed manganese ore, extracting and filtering are carried out, filter residues are collected, and the manganese carbonate ore phase of filter liquor is determined; thirdly, a hydroxylamine sulphate and sulfuric acid solution is added into the filter residues collected in the second step, extracting and filtering are carried out, filter residues are collected, and the manganese oxide ore phase of filter liquor is determined; fourthly, the filter residues obtained the third step are ashed, mixed acid including nitric acid, hydrofluoric acid and perchloric acid is added for dissolving the ashed filter residues, and the manganese ore phase is determined. The manganese ore phase analyzing method is accurate and simple, the influence of phase shifting in the extraction processes is greatly relieved, the accuracy of an analyzing result is improved, and the problems that in a traditional manganese ore phase analyzing method, errors are large, phase shifting is serious, and efficiency is low are solved.

Description

technical field [0001] The invention relates to an analysis and determination method for specific compounds in ores, in particular to a method for phase analysis of manganese ores. Background technique [0002] The phase analysis of manganese in manganese ore is a quantitative determination method and related theory for studying different valence states or forms of manganese. Manganese is widely distributed in nature. There are about 150 kinds of known manganese minerals. According to the form of manganese in nature and its industrial use, usually only the pyrolusite (MnO 2 ), manganese (Mn 2 o 3 ·H 2 O), brown manganese (Mn 2 o 3 ), Rhodochrosite (MnCO 3 ) and manganese silicate (MnSiO 3 ) for phase analysis. Under certain conditions, the behavior of these manganese compounds to a certain solvent is different, so that various forms of manganese minerals are leached one by one, collected separately, and then the content of each component is determined one by one. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N21/25G01N1/28G01N1/34G01N1/44
CPCG01N1/28G01N1/34G01N1/44G01N21/25G01N33/24
Inventor 姜云张文娟郑建业刘晶
Owner SHANDONG INST OF GEOLOGICAL SCI
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