Unlock instant, AI-driven research and patent intelligence for your innovation.

An industrial wet ball milling method for manganese ore based on the return water of electrolytic manganese metal system

A technology of electrolytic manganese metal and wet ball milling, applied in grain processing, etc., can solve the problems of high production cost and complicated processing, and achieve the effects of reducing manganese ore loss, avoiding dust pollution, and shortening the grinding process

Active Publication Date: 2021-02-12
TONGREN UNIV +1
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application only selects a kind of washing water from the return water of the electrolytic manganese system as the wet grinding agent, and the application also needs to treat the manganese-containing washing water to be neutral before it can be used as the wet grinding agent, which is complicated to deal with and causes high production costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An industrial wet ball milling method for manganese ore based on the return water of electrolytic manganese metal system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the industrialized wet ball milling method of manganese ore based on the return water of the electrolytic metal manganese system adopts three-stage closed-circuit wet grinding, and the specific steps include:

[0023] Step 1, 1kg manganese ore (including the following mass percentage components: Mn18.32% (main phase is MnCO 3 ), Fe 2 o 3 2.84%, MgO5.12%, CaO4.9% and SiO 2 25.2% etc.) to less than 10mm, and then use passivation chromium removal wastewater (pH of passivation chromium removal wastewater is 5.7, total chromium content is less than 1.5mg / L, Mn 2+ 102mg / L) to 75wt%, under the conditions of rotating speed 30r / min and ball-to-material ratio 10:1, wet ball milling until the particle size of manganese ore is below 80 mesh accounts for 90%, and unqualified manganese ore after primary classification is returned to One-time wet ball milling;

[0024] Step 2, the manganese ore below 80 orders that step 1 obtains adopts deammonization n...

Embodiment 2

[0027] Such as figure 1 As shown, the industrialized wet ball milling method of manganese ore based on the return water of the electrolytic metal manganese system adopts three-stage closed-circuit wet grinding, and the specific steps include:

[0028] Step 1, 1kg manganese ore (including the following mass percentage components: Mn19.4% (main phase is MnCO 3 ), Fe 2 o 3 3.67%, MgO2.22%, CaO3.8% and SiO 2 26.4% etc.) broken to less than 25mm, and then use passivation chromium removal wastewater (pH of passivation chromium removal wastewater is 6.5, total chromium content is less than 1.5mg / L, Mn 2+ 1890mg / L) to 85wt%, at a rotational speed of 60r / min and a ball-to-material ratio of 20:1, wet ball milling until the particle size of the manganese ore is below 80 mesh accounts for 90%, and the unqualified manganese ore after the primary classification is returned to the One-time wet ball milling;

[0029] Step 2, the manganese ore below 80 orders that step 1 obtains adopts de...

Embodiment 3

[0032] Such as figure 1 As shown, the industrialized wet ball milling method of manganese ore based on the return water of the electrolytic manganese system adopts three-stage closed-circuit wet grinding, and the specific steps include:

[0033] Step 1, 1kg manganese ore (including the following mass percentage components: Mn20.1% (main phase is MnCO 3 ), Fe 2 o 3 2.67%, MgO4.32%, CaO6.1% and SiO 225.4% etc.) broken to less than 15mm, and then use passivation chromium removal wastewater (pH of passivation chromium removal wastewater is 6.6, total chromium content is less than 1.5mg / L, Mn 2+ 998mg / L) to 80wt%, at a rotational speed of 50r / min and a ball-to-material ratio of 18:1, wet ball milling until the particle size of the manganese ore is below 80 mesh accounts for 90%, and the unqualified manganese ore after the primary classification is returned to the One-time wet ball milling;

[0034] Step 2, the manganese ore below 80 orders that step 1 obtains adopts deammoniza...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an industrialized wet ball milling method for manganese ore based on the return water of an electrolytic manganese system, and belongs to the technical field of electrolytic manganese production. Crush the manganese ore to less than 10-25mm, use the passivation chromium removal wastewater to adjust the size of the wet ball mill until the manganese ore particle size is below 80 mesh, accounting for 90%, and return the unqualified manganese ore to the primary wet ball mill after the primary classification; the obtained 80 The manganese ore below the mesh is mixed with the leachate wastewater from the deammoniated nitrogen and manganese slag and the secondary wet ball mill is used until the particle size of the manganese ore is below 100 mesh, accounting for 80%. After secondary classification, the unqualified manganese ore is returned to the secondary wet ball mill; The mixed water composed of passivation chromium removal wastewater and deammonization nitrogen manganese slag leachate wastewater is used for three times of wet ball milling until the manganese ore particle size is below 150 mesh, accounting for 85%, and the manganese ore below 150 mesh is qualified manganese ore powder. The invention applies the return water of the electrolytic metal manganese system to the wet ball milling process of manganese ore, and realizes further recovery of the return water of the electrolytic metal manganese system.

Description

technical field [0001] The invention relates to an industrialized wet ball milling method for manganese ore based on the return water of an electrolytic manganese system, and belongs to the technical field of electrolytic manganese production. Background technique [0002] The industrial production methods of manganese metal mainly include fire method and electrolysis method. The purity of manganese metal produced by fire method is low (95-98%), which requires high energy consumption and heavy pollution, while the purity of manganese metal obtained by electrolysis method reaches 99.9%. But at the same time, electrolytic manganese is still a heavily polluting industry. The metallurgical production process of electrolytic manganese is leaching, oxidation and neutralization after manganese ore grinding, then removing impurities, electrolysis, passivation and stripping after pressure filtration to prepare electrolytic manganese metal. In the above preparation process, passivati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B02C17/10B02C17/20B02C25/00B02C23/14C22B1/00C22B47/00
CPCB02C17/10B02C17/20B02C23/14B02C25/00C22B1/00C22B47/00
Inventor 常军秦林张超王子阳李学鹏
Owner TONGREN UNIV