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Application and application method of keratin as inhibitor in reverse flotation of iron ore in the field of mineral processing

An application method and inhibitor technology, applied in flotation, solid separation and other directions, can solve problems such as undeveloped, and achieve the effect of improving recovery rate and grade, strong selectivity and good stability

Active Publication Date: 2022-08-02
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application in the field of mineral processing has not yet been developed.
[0004] Curdlan gum has special properties and has great prospects in industrial applications. However, it is only used as a food additive at present, so it is necessary to broaden its application fields

Method used

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  • Application and application method of keratin as inhibitor in reverse flotation of iron ore in the field of mineral processing
  • Application and application method of keratin as inhibitor in reverse flotation of iron ore in the field of mineral processing
  • Application and application method of keratin as inhibitor in reverse flotation of iron ore in the field of mineral processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Application methods of keratin as an inhibitor in reverse flotation of iron ore in the field of mineral processing, including:

[0035] Step 1: according to the mass ratio of available rubber: sodium hydroxide=100:20, take a certain amount of available rubber and sodium hydroxide;

[0036] Step 2: dissolving sodium hydroxide in water to obtain lye;

[0037] Step 3: Heat the lye solution to 85°C, turn on stirring, add the weighed keratin, stir for 15 minutes to completely dissolve, and the solution is transparent;

[0038] Step 4: Dilute the transparent solution with water to obtain an aqueous solution with a mass fraction of 1% of the gelatin, which is the inhibitor solution;

[0039] Step 5: The ore sample is prepared into a slurry with a mass concentration of 40%, the pH is adjusted to 11.5, and the inhibitor solution, activator and collector are added according to the actual weight of the ore sample. t Add inhibitor solution, stir, add activator (calcium chloride) ...

Embodiment 2

[0047] Application methods of keratin as an inhibitor in reverse flotation of iron ore in the field of mineral processing, including:

[0048] Step 1: according to the mass ratio of available rubber: sodium hydroxide=100:20, take a certain amount of available rubber and sodium hydroxide;

[0049] Step 2: dissolving sodium hydroxide in water to obtain lye;

[0050] Step 3: Heat the lye solution to 85°C, turn on stirring, add the weighed keratin, stir for 15 minutes to completely dissolve, and the solution is transparent;

[0051] Step 4: Dilute the transparent solution with water to obtain an aqueous solution with a mass fraction of 1% of the gelatin, which is the inhibitor solution;

[0052] Step 5: The ore sample is prepared into ore pulp with a mass concentration of 40%, the pH is adjusted to 9, and the inhibitor solution and the collector are added according to the actual weight of the ore sample, specifically, 250g (Keran gum) / t is added. The inhibitor solution was stirr...

Embodiment 3

[0060] Application methods of keratin as an inhibitor in reverse flotation of iron ore in the field of mineral processing, including:

[0061] Step 1: according to the mass ratio of available rubber: sodium hydroxide=100:20, take a certain amount of available rubber and sodium hydroxide;

[0062] Step 2: dissolving sodium hydroxide in water to obtain lye;

[0063] Step 3: Heat the lye solution to 85°C, turn on stirring, add the weighed keratin, stir for 15 minutes to completely dissolve, and the solution is transparent;

[0064] Step 4: Dilute the transparent solution with water to obtain an aqueous solution with a mass fraction of 1% of the gelatin, which is the inhibitor solution;

[0065] Step 5: The ore sample is prepared into a slurry with a mass concentration of 40%, the pH is adjusted to 11.5, and the inhibitor solution, activator and collector are added according to the actual weight of the ore sample. t Add inhibitor solution, stir, add activator (lime) at 1000g / t, ...

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Abstract

The application and application method of keratin as an inhibitor in reverse flotation of iron ore in the field of mineral processing belong to the industrial application field of keratin. In the present invention, keratin can be selectively adsorbed on the surface of hematite. , which increases the hydrophilicity of hematite and reduces the floatability without affecting the floatability of gangue minerals such as quartz. Thus, iron minerals can be enriched from gangue minerals. At the same time, it broadens the application field of keratin.

Description

technical field [0001] The invention belongs to the industrial application field of keratin, in particular to the application and application of keratin as an inhibitor in the reverse flotation of iron ore in the field of mineral processing. Background technique [0002] Kedaran is a linear glucan composed of 400-500 D-glucose residues through β-1,3-D-glucosidic bonds. The complete molecular formula is (C 6 H 10 O 5 ) n . n is usually above 250, its molecular weight is about 44000-100000, and there is no branched chain structure. Insoluble in water and many organic solvents, but soluble in lye, formic acid, etc. Keratin has many special properties, the sugar can form a thermo-irreversible gel, and it has edible and various industrial uses. In 1989, Japan and South Korea began to use it as food glue. In 1996, the US FDA approved it to be used in food ingredients as a food stabilizer and thickener. Condensed polysaccharide has thus become the third FDA-approved ferment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D1/02B03D101/06B03D103/04
CPCB03D1/018B03D1/02B03D2201/06B03D2203/04
Inventor 朱一民韩文杰李艳军
Owner NORTHEASTERN UNIV LIAONING