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Method for comprehensively utilizing electrolytic manganese residues

A technology for electrolytic manganese slag and manganese-rich slag, applied in chemical instruments and methods, preparation/separation of sulfur compounds, ammonia, etc., can solve the problems of not fully utilizing the available resources of manganese slag, achieve low cost, and facilitate promotion , the effect of low price

Active Publication Date: 2013-07-24
广西天工冶金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention still fails to take full advantage of the resources available in the manganese slag

Method used

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  • Method for comprehensively utilizing electrolytic manganese residues
  • Method for comprehensively utilizing electrolytic manganese residues

Examples

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Effect test

Embodiment 1

[0021] A method for comprehensive utilization of electrolytic manganese slag. Firstly, electrolytic manganese slag is flotationd in a flotation machine to select dihydrate gypsum. The selected agent is sodium carbonate as the regulator, sodium hexametaphosphate and water glass as the inhibitor, fatty acid salt as the collector, 500 g / ton of sodium carbonate and 600 g of sodium hexametaphosphate as the flotation agent / ton, the consumption of water glass is 1000 grams per ton, and the consumption of fatty acid salt is 400 grams per ton. The flotation agent used in the selected section is acidic water glass as the inhibitor, and fatty acid salt as the collector. The amount of acidic water glass is 1200 g / ton, and the amount of fatty acid salt is 15 g / ton. The two-stage flotation roughing section adopts two roughing, one sweeping and one finening process, and the above-mentioned refining section adopts one roughing, one sweeping and three finening process, and the gypsum content...

Embodiment 2

[0023] A method for comprehensive utilization of electrolytic manganese slag. Firstly, electrolytic manganese slag is flotationd in a flotation machine to select dihydrate gypsum. The selected agent is sodium carbonate as the regulator, sodium hexametaphosphate and water glass as the inhibitor, fatty acid salt as the collector, 700 g / ton of sodium carbonate and 500 g of sodium hexametaphosphate as the flotation agent / ton, the consumption of water glass is 1000 grams per ton, and the consumption of fatty acid salt is 300 grams per ton. The flotation agent used in the selected section is acidic water glass as the inhibitor, and fatty acid salt as the collector. The amount of acidic water glass is 1000 g / ton, and the amount of fatty acid salt is 15 g / ton. The two-stage flotation roughing section adopts two roughing, one sweeping and one finening process, and the above-mentioned refining section adopts one roughing, one sweeping and three finening process, and the gypsum content...

Embodiment 3

[0025] A method for comprehensive utilization of electrolytic manganese slag. Firstly, electrolytic manganese slag is flotationd in a flotation machine to select dihydrate gypsum. The selected agent is sodium carbonate as the regulator, sodium hexametaphosphate and water glass as the inhibitor, fatty acid salt as the collector, 900 g / ton of sodium carbonate and 400 g of sodium hexametaphosphate as the flotation agent / ton, the consumption of water glass is 1000 grams per ton, and the consumption of fatty acid salt is 280 grams per ton. The flotation agent used in the selected section is acidic water glass as the inhibitor, and fatty acid salt as the collector. The amount of acidic water glass is 900 g / ton, and the amount of fatty acid salt is 15 g / ton. The two-stage flotation roughing section adopts two roughing, one sweeping and one finening process, and the above-mentioned refining section adopts one roughing, one sweeping and three finening process, and the gypsum content ...

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Abstract

The invention discloses a method for comprehensively utilizing electrolytic manganese residues. The method comprises the following steps of: firstly carrying out flotation on electrolytic manganese residues in a flotation machine, and screening out dihydrate gypsum; carrying out strong magnetic separation on tailings subjected to flotation, and singling out ferromanganese bulk concentrate and tailings; smelting the ferromanganese bulk concentrate to obtain rich-manganese slag; and burning the dihydrate gypsum obtained through floatation with smelting waste heat so as to remove ammonia and sulfur for production of ammonia water and sulfuric acid and co-production of cement. The tailings discharged in the end are non-toxic and harmless and can be used for producing baking-free bricks, land rehabilitation or underground filling. According to the method, lots of manganese residues can be consumed, multiple related products are obtained while the environmental problem and the safety problem are solved, and thus the purposes of turning waste into wealth and cyclical utilization are achieved.

Description

technical field [0001] The invention belongs to the technical field of mining and building materials, and relates to a method for comprehensive utilization of electrolytic manganese slag. Background technique [0002] Electrolytic manganese slag is filter residue obtained by adding sulfuric acid solution to manganese carbonate ore powder to obtain manganese sulfate solution to produce electrolytic manganese metal or electrolytic manganese dioxide. The production process is to add sulfuric acid solution and manganese carbonate ore powder in the reactor to react to generate manganese sulfate, and then undergo purification processes such as iron and sulfur removal; then filter with a filter press, the filtrate enters the electrolytic cell for electrolysis, and the discharged filter cake is the so-called Electrolytic manganese slag. The discharge of electrolytic manganese slag is quite large. For every 1 ton of electrolytic manganese metal produced, the discharged manganese sla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/00C01C1/02C01B17/74C22B7/00
CPCY02P20/129
Inventor 林凯平杨文汤晓壮徐刚韦权锋陆仕勇
Owner 广西天工冶金科技有限公司
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