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A kind of environment-friendly utilization method of Gabon high-iron manganese oxide ore

A technology of manganese oxide ore and oxidized ore, applied in the direction of improving process efficiency, etc., can solve problems such as unsatisfactory reduction and leaching effects, poor economic benefits, high impurity content, etc., to reduce slag storage management costs, reduce production costs, and reduce emissions The effect of slag fees

Active Publication Date: 2020-01-17
DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the manganese oxide ore imported from Gabon has low manganese content, high iron and phosphorus content, and belongs to low-poor, impurity and refractory manganese ore. It is used to directly produce electrolytic manganese metal. Due to the low manganese content and high impurity content, the reduction and leaching effect is not good. Ideal, not economical

Method used

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  • A kind of environment-friendly utilization method of Gabon high-iron manganese oxide ore
  • A kind of environment-friendly utilization method of Gabon high-iron manganese oxide ore

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Embodiment 1

[0029] An environment-friendly utilization method of Gabon high-iron manganese oxide ore, comprising the following steps:

[0030] S1. Mixed roasting of Gabon oxide ore and coal powder, the mass ratio of Gabon oxide ore and coal powder is 100:15, the roasting temperature is 850°C, the roasting time is 45min, and the formation of Mn is controlled. 2+ The conversion rate is 90%, generating Fe 2+ The conversion rate of 10%, obtains calcined material;

[0031] S2; Add the mixed solution to the roasting material, the ratio of the roasting material and the mixed solution is 1:2.6kg / L, and the mixed solution is obtained by mixing pickling solution, water washing solution, crystallization mother liquor and sulfuric acid, and the acid composition and sulfuric acid in the mixed solution are controlled. The mass ratio of the calcined material is 0.55. After stirring for 2-3 hours, add manganese powder, and add 2.7 kg of iron-removing manganese powder per 1 L of the mixture, and stir for...

Embodiment 2

[0043] An environment-friendly utilization method of Gabon high-iron manganese oxide ore, comprising the following steps:

[0044] S1. Mixed roasting of Gabon oxide ore and coal powder, the mass ratio of Gabon oxide ore and coal powder is 100:15, the roasting temperature is 850°C, the roasting time is 45min, and the formation of Mn is controlled. 2+ The conversion rate is 90%, generating Fe 2+ The conversion rate of 10%, obtains calcined material;

[0045] S2; Add the mixed solution to the roasting material, the ratio of the roasting material and the mixed solution is 1:2.6kg / L, and the mixed solution is obtained by mixing pickling solution, water washing solution, crystallization mother liquor and sulfuric acid, and the acid composition and sulfuric acid in the mixed solution are controlled. The mass ratio of the calcined material is 0.55. After stirring for 2-3 hours, add manganese powder, and add 2.7kg of iron-removing manganese powder per 1L of the mixed solution, and sti...

Embodiment 3

[0054] An environment-friendly utilization method of Gabon high-iron manganese oxide ore, comprising the following steps:

[0055] S1. Gabon oxidized ore mixed with coal powder for roasting, the mass ratio of Gabon oxidized ore and coal powder is 100:12.3, the roasting temperature is 850°C, the roasting time is 45min, and the formation of Mn is controlled 2+ The conversion rate is 87.68%, generating Fe 2+ The conversion rate of 10%, obtains calcined material;

[0056] S2; Add the mixed solution to the roasting material, the ratio of the roasting material and the mixed solution is 1:3.7kg / L, and the mixed solution is obtained by mixing pickling solution, water washing solution, crystallization mother liquor and sulfuric acid, and the acid composition and sulfuric acid in the mixed solution are controlled. The mass ratio of the calcined material is 0.56. After stirring for 2-3 hours, add manganese powder, add 1.8 kg of iron-removing manganese powder per 1 L of mixed solution, a...

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Abstract

The invention discloses an environment-friendly utilization method for Gabonese high iron manganese oxide ores. The method comprises the following steps: roasting; adding a mixed liquid into the roasted material, wherein the mixed liquid is obtained by mixing a pickling solution, a water lotion, crystallized mother liquor and an acid solution, and stirring the mixture to obtain a manganese sulfatelixivium and leach residues; pickling and washing the leach residues; crystallizing the manganese sulfate lixivium to obtain a manganese sulfate product; and washing the residues to prepare sinteredores. According to the method disclosed by the invention, the pickling solution, the water lotion and the crystallized mother liquor in a production process can be repeatedly used, the leach residuesgenerated in the production process can be cyclically used, no residues are generated, so that the environment-friendly utilization method is energy-saving and environment-friendly and has a huge economical benefit.

Description

technical field [0001] The invention relates to the technical field of utilization of manganese oxide ore, in particular to an environment-friendly utilization method of Gabon high-iron manganese oxide ore. Background technique [0002] Manganese is widely distributed in nature, and almost all kinds of ores and silicate rocks contain manganese. The most common manganese ores are anhydrous and hydrous manganese oxide and manganese carbonate. There are 150 known manganese minerals, but the manganese content is the highest. There are only 5-6 manganese minerals that can be enriched in large quantities to form economically valuable manganese minerals. Among them The most important and most economically valuable are pyrolusite and hard manganese ore, and manganese ore, brown manganese ore, black manganese ore, rhodochrosite and so on. The content of manganese in these minerals can reach about 50-70%, which is an important industrial mineral of manganese. [0003] At present, my...

Claims

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Application Information

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IPC IPC(8): C22B1/02C22B1/242C22B3/08C22B47/00
CPCC22B1/02C22B1/2406C22B1/242C22B3/08C22B47/00Y02P10/20
Inventor 吴继相刘春明韦旭甜明宪权黎兆明农德连魏汉可何溯结江炤荣方广盛罗军吴晓丹黄炳龙覃燕玲李庆梅
Owner DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND
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