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Method for preparing manganese ferrite spinel material by utilizing high-lead and high-phosphorus manganese resource, and additive

A technology of manganese ferrite spinel and lead high phosphorus manganese, which is applied in the fields of inorganic material magnetism, chemical instruments and methods, iron compounds, etc., can solve the problem of difficult separation of harmful elements and manganese minerals, and achieve enhanced deleading and dephosphorization , strengthen roasting, promote the effect of production

Active Publication Date: 2018-01-09
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

[0008] In view of the difficulty in separating harmful elements such as lead and phosphorus from manganese minerals in the beneficiation process of high-lead, high-phosphorus and manganese resources in the prior art, the purpose of the present invention is to provide an additive for strengthening the roasting of high-lead, high-phosphorus and manganese resources. Additives can regulate the formation of iron-manganese oxides and the migration of harmful impurity elements, realize the dephosphorization and deleading of high-lead and high-phosphorus manganese resources, and obtain high-quality manganese ferrite spinel materials

Method used

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  • Method for preparing manganese ferrite spinel material by utilizing high-lead and high-phosphorus manganese resource, and additive

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Effect test

Embodiment 1

[0035] High phosphorus and high lead manganese resources (manganese anode slime TMn 40.4%, Pb 10.5%; ferromanganese ore TMn 20.6%, Pb 3.5%, P 1.0%), additives (60% iron resources: hematite, magnetite ; 30% calcium flux: quicklime; 10% sodium salt: 10% sodium carbonate+90% sodium oxalate) for batching, the composition of the mixture is TMn21%, TFe42%, (CaO+Na 2 O) / SiO 2 =0.05, the mass percentage of the mixture-325 mesh particle size is 95%, and the specific surface area is 2600cm 2 / g, add 0.25% bentonite and 8% water, make pellets, then dry, roast the dried samples in a muffle furnace, the roasting temperature is 1300°C, the roasting time is 2h, and grind the roasted samples after cooling The mass percentage of the particle size to -325 mesh is 99.5%, and the magnetic separation is carried out in a magnetic field with a magnetic field strength of 500Gs, and the obtained magnetic product is a multilayer manganese-ferro-spinel material. The magnetic properties of the magnetic...

Embodiment 2

[0037] High-phosphorus and high-lead manganese resources (manganese anode slime TMn 43.2%, Pb 9.6%; ferromanganese ore TMn 14.4%, Pb 2.8%, P 0.9%), additives (65% iron-containing resources: hematite, magnetite ; 25% calcium flux: quicklime; 10% sodium salt: 10% sodium sulfate+10% borax+80% sodium oxalate) for batching, the composition of the mixture is TMn16%, TFe40%, (CaO+Na 2 O) / SiO 2 =0.45, the mass percentage of the mixture-325 mesh particle size is 95%, and the specific surface area is 2500cm 2 / g, add 0.25% bentonite and 8% water, make pellets, then dry, roast the dried samples in a muffle furnace, the roasting temperature is 1200°C, the roasting time is 5h, and the roasted samples are ground after cooling The mass percentage of the particle size to -325 mesh is 100%, and the magnetic separation is carried out in a magnetic field with a magnetic field strength of 800Gs, and the obtained magnetic product is a multilayer manganese-ferro-spinel material. The magnetic prop...

Embodiment 3

[0039] High phosphorus and high lead manganese resources (manganese anode slime TMn 40.8%, Pb 8.3%; ferromanganese ore TMn 14.4%, Pb 2.8%, P 0.9%), additives (80% iron resources: high phosphorus oolitic hematite , magnetite; 10% calcium flux: quicklime, limestone; 10% sodium salt: 5% sodium sulfate+5% borax+90% sodium oxalate) for batching, the composition of the mixture is TMn20%, TFe31%, (CaO +Na 2 O) / SiO 2 =0.30, the mass percentage of the mixture-325 mesh particle size is 95%, and the specific surface area is 2650cm 2 / g, add 0.25% bentonite and 8% water to make pellets, then dry, roast the dried samples in a muffle furnace, the roasting temperature is 1250°C, and the roasting time is 5h, and the roasted samples are ground after cooling The mass percentage of the particle size to -325 mesh is 100%, and the magnetic separation is carried out in a magnetic field with a magnetic field strength of 700Gs, and the obtained magnetic product is a multilayer manganese-ferro-spine...

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Abstract

The invention discloses a method for preparing a manganese ferrite spinel material by utilizing a high-lead and high-phosphorus manganese resource, and an additive. The additive is prepared from an iron-containing substance, a calcium fluxing agent and sodium salt; the method for preparing the manganese ferrite spinel material by strengthening lead removal and phosphorus removal of the high-lead and high-phosphorus manganese resource through utilizing the additive comprises the following steps: after grinding the high-lead and high-phosphorus manganese resource, mixing the powder with the additive, agglomerating, drying and roasting; then carrying out ore grinding and magnetic separation on a roasted material to obtain the manganese ferrite spinel material and tailings containing rich leadand phosphorus. According to the method disclosed by the invention, harmful elements including the lead and the phosphorus in the high-lead and high-phosphorus manganese resource can be efficiently removed; meanwhile, the manganese ferrite spinel material is prepared; a ferromanganese spinel obtained by the magnetic separation has high purity and good magnetic performance; the method has the advantages of wide raw material sources, simple process, low cost and easiness for realizing industrial production.

Description

technical field [0001] The invention relates to an additive for strengthening the deleading and dephosphorization of high-lead, high-phosphorus and manganese resources, in particular to an additive composed of iron-containing substances, calcium flux and sodium salt to strengthen the roasting of high-lead, high-phosphorus and manganese resources The invention relates to a method for obtaining ferromanganese spinel material through deleading and dephosphorization by regulating a roasting-magnetic separation process, which belongs to the fields of mineral processing, metallurgical engineering and material preparation. Background technique [0002] Manganese is an important strategic resource. 90% of manganese is consumed in the iron and steel industry as a deoxidizer and desulfurizer for molten steel and alloying elements, and 10% is used in other related industries. The cumulative proven reserves of manganese ore in my country are 643.517 million tons, and the retained reserv...

Claims

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Application Information

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IPC IPC(8): C01G49/00H01F41/00H01F1/10H01F1/34
Inventor 张元波刘兵兵姜涛李光辉苏子键彭志伟饶明军范晓慧黄柱成张鑫王娟路漫漫古佛全韩本来涂义康王嘉
Owner CENT SOUTH UNIV
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