CN104525384B - Preparation method of inhibitor of limonite - Google Patents

Preparation method of inhibitor of limonite Download PDF

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Publication number
CN104525384B
CN104525384B CN201510008777.7A CN201510008777A CN104525384B CN 104525384 B CN104525384 B CN 104525384B CN 201510008777 A CN201510008777 A CN 201510008777A CN 104525384 B CN104525384 B CN 104525384B
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solution
limonite
inhibitor
mass ratio
sodium hydroxide
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CN104525384A (en
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魏宗武
李玉琼
陈晔
穆枭
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Guangxi University
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Guangxi University
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Abstract

The invention provides a preparation method of an inhibitor of limonite. The method comprises the steps that (1) sodium carbonate, sodium hydroxide and water are mixed according to the mass ratio of 2-3:3-5:5-8, so that a solution 1 is obtained; (2) direct green dye or direct black dye is added into the solution 1 according to the mass ratio of 1-2:8-15 and stirred to be dissolved, so that a solution 2 is obtained; (3) sodium lignin sulfonate is added into the solution 2 according to the mass ratio of 1-3:8-12, the temperature of the solution 2 is controlled to range from 80 DEG C to 90 DEG C, and the mixture is stirred for reaction lasting 5 h-6 h, so that a solution 3 is obtained; (4) the solution 3 is subjected to suction filtration and washing, so that a crystalline viscous material is obtained; (5) the crystalline viscous material is dried at 70 DEG C to 80 DEG C, so that the inhibitor of the limonite is obtained. By adopting the method, the limonite can be inhibited, and the grade and recovery rate of zinc concentrate can be increased.

Description

A kind of preparation method of limonite inhibitor
One, technical field
The present invention relates to the preparation method of a kind of limonite inhibitor, float with limonite especially for zinc oxide Select in separation process, the inhibitor of zinc oxide concentrate grade need to be improved.
Two, background technology
In the removal process of zinc oxide ore, general employing flotation is reclaimed, and affects recovery index and mainly depend on The number of the impurity content such as limonite, thin mud in Ore;During FLOTATION SEPARATION, limonite and thin mud Close with zinc oxide ore floatability Deng impurity, again due to when broken, ore grinding the impure mineral such as limonite easy Become the thinnest granule, add other interference factor, cause its FLOTATION SEPARATION difficulty, want to reclaim this kind Zinc oxide minerals, not only makes flotation flowsheet structure complicated, and medicament is many, production cost is high in use, and aoxidizes Zinc recovery is the highest, limits the development and utilization of zinc mineral.
Three, summary of the invention
It is an object of the invention to provide the preparation method of a kind of limonite inhibitor, the inhibitor energy being prepared into Limonite in enough inhibited oxidation zinc, improves zinc oxide concentrate grade and the response rate.
The present invention reaches above-mentioned purpose by the following technical solutions: the preparation method of a kind of limonite inhibitor, Comprise the steps:
(1) by sodium carbonate, sodium hydroxide and water sodium carbonate in mass ratio: sodium hydroxide: water=2~3:3~ 5:5~8 mixes to obtain solution 1;
(2) adding in solution 1 by dyestuff direct green or the most black in mass ratio=1~2:8~15, stirring is extremely Dissolve to obtain solution 2;
(3) sodium lignin sulfonate in mass ratio=1~3:8~12 is added in solution 2, control solution 2 Temperature is 80~90 DEG C, and stirring reaction keeps 5~6h to obtain solution 3;
(4) by solution 3 sucking filtration, crystalloid dope is washed to obtain;
(5) finally crystalloid dope is dried under the conditions of 70~80 DEG C, i.e. obtains described limonite and press down Preparation.
During flotation, sodium hydroxide regulation slurry pH is 9.5~10.5;In floatation process, by Ore ore grinding After dissociating to mineral monomer, adding described inhibitor, activator, collecting agent, the total consumption of medicament is: 400~ 500g/t。
During use, described inhibitor is first configured to the aqueous solution that mass percentage concentration is 2~5%.
Unless otherwise indicated, percentage ratio of the present invention is mass percent, each constituent content percent Sum is 100%.
Particularly advantage of the invention is:
1, the limonite inhibitor using the present invention to be prepared into can suppress limonite, improves zinc oxide concentrate product Position and the response rate.
2, dosing is few.
Four, detailed description of the invention
Below by way of specific embodiment, technical scheme is further described.
Embodiment 1
One example of the preparation method of limonite inhibitor of the present invention, comprises the following steps:
First by sodium carbonate, sodium hydroxide and water sodium carbonate in mass ratio: sodium hydroxide: water=2:3:5 mixing Solution 1, then by dyestuff direct green in mass ratio=1:8 adds in solution 1, stirring is to dissolving to obtain solution 2;Then by sodium lignin sulfonate in mass ratio=1:8 adds in solution 2, controlling solution 2 temperature is 80 DEG C, stirring reaction keeps 5h to obtain solution 3, by solution 3 sucking filtration, washes to obtain crystalloid dope, finally will Crystalloid dope is dried under the conditions of 70 DEG C, obtains described limonite inhibitor.
Embodiment 2
Another example of the preparation method of limonite inhibitor of the present invention, comprises the following steps:
First by sodium carbonate, sodium hydroxide and water sodium carbonate in mass ratio: sodium hydroxide: water=3:5:8 mixes Close to obtain solution 1, then by the most black for dyestuff in mass ratio=2:15 adds in solution 1, stirring is to dissolving Solution 2;Then by sodium lignin sulfonate in mass ratio=1:4 adds in solution 2, controlling solution 2 temperature is 90 DEG C, stirring reaction keeps 6h to obtain solution 3, by solution 3 sucking filtration, washes to obtain crystalloid dope, finally Crystalloid dope is dried under the conditions of 80 DEG C, obtains described limonite inhibitor.
Embodiment 3
The present embodiment is described limonite inhibitor application example in zinc oxide with limonite FLOTATION SEPARATION.
1, raw mineral materials:
The content of raw materials used middle zinc is 15.59%, iron content is 24.10%, shows through material phase analysis, zinc master Will exist with zinc carbonate, ore of zinc silicate form, a small amount of marionite and smithsonite, gangue mineral is mainly with brown ferrum Ore deposit, silicate patterns exist, and separately have a small amount of silicon dioxide mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 9.5~10.5, by inhibitor with sodium hydroxide 400g/t, sodium sulfide 2000g/t, 18-amine. 750g/t dosing tested, and result shows to use Process above and agentia condition to ore deposit Zn content can be effectively by zinc oxide and limonite FLOTATION SEPARATION Under the conditions of 15.59%, scanning and triple cleaning for three times through one roughing, flotation concentrate Zn content reaches 36.78%, the response rate reaches 74.69%.
Embodiment 4
The present embodiment is that described limonite inhibitor Another Application in zinc oxide with limonite FLOTATION SEPARATION is real Example.
1, raw mineral materials
Raw mineral materials:
The content of raw materials used middle zinc is 18.06%, iron content is 23.69%, shows through material phase analysis, zinc master Will exist with zinc carbonate, ore of zinc silicate form, a small amount of marionite and smithsonite, gangue mineral is mainly with brown ferrum Ore deposit, silicate patterns exist, and separately have a small amount of silicon dioxide mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 9.5~10.5, by inhibitor with sodium hydroxide 500g/t, sodium sulfide 2000g/t, 18-amine. 750g/t dosing tested, and result shows to use Process above and agentia condition to ore deposit Zn content can be effectively by zinc oxide and limonite FLOTATION SEPARATION Under the conditions of 18.06%, scanning and triple cleaning for three times through one roughing, flotation concentrate Zn content reaches 37.60%, the response rate reaches 76.40%.

Claims (3)

1. the preparation method of a limonite inhibitor, it is characterised in that comprise the steps:
(1) by sodium carbonate, sodium hydroxide and water sodium carbonate in mass ratio: sodium hydroxide: water=2~3:3~ 5:5~8 mixes to obtain solution 1;
(2) adding in solution 1 by dyestuff direct green or the most black in mass ratio=1~2:8~15, stirring is extremely Dissolve to obtain solution 2;
(3) sodium lignin sulfonate in mass ratio=1~3:8~12 is added in solution 2, control solution 2 Temperature is 80~90 DEG C, and stirring reaction keeps 5~6h to obtain solution 3;
(4) by solution 3 sucking filtration, crystalloid dope is washed to obtain;
(5) finally crystalloid dope is dried under the conditions of 70~80 DEG C, i.e. obtains described limonite and press down Preparation.
2. the application in zinc oxide with limonite FLOTATION SEPARATION of the limonite inhibitor described in claim 1, It is characterized in that, during flotation, sodium hydroxide regulation slurry pH is 9.5~10.5;In floatation process, will After Ore ore grinding dissociates to mineral monomer, add described inhibitor, activator, collecting agent, the total consumption of medicament For: 400~500g/t.
Limonite inhibitor the most according to claim 2 answering in zinc oxide with limonite FLOTATION SEPARATION With, it is characterised in that during use, described inhibitor is first configured to the water that mass percentage concentration is 2~5% Solution.
CN201510008777.7A 2015-01-08 2015-01-08 Preparation method of inhibitor of limonite Active CN104525384B (en)

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CN105080728B (en) * 2015-09-30 2017-09-19 广西大学 A kind of flotation separation method of antimony trisulfide and auriferous pyrite
CN105312161B (en) * 2015-11-30 2017-06-23 广西大学 A kind of lead zinc sulphur bulk flotation separates the preparation method of inhibitor
CN106269281B (en) * 2016-05-12 2018-07-27 江西理工大学 A kind of preparation method of Wolframite agent
CN106378261B (en) * 2016-11-02 2018-08-17 广西大学 The method for floating of limonite is removed in a kind of concentrate from wollastonite
CN106423582B (en) * 2016-12-07 2018-08-17 广西大学 A kind of preparation method of potassium feldspar inhibitor

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SU1144729A1 (en) * 1983-09-23 1985-03-15 Сибирский государственный проектный и научно-исследовательский институт цветной металлургии "Сибцветметниипроект" Method of flotation of clay fluorite ores
US5221466A (en) * 1989-04-20 1993-06-22 Freeport-Mcmoran Resource Partners, Limited Partnership Phosphate rock benefication
CN101264465B (en) * 2008-05-12 2011-06-08 昆明理工大学 Singleness siderite full flotation ore dressing method
CN102327815B (en) * 2011-07-28 2013-07-31 湖南有色金属研究院 Beneficiation method for replacing sodium cyanide floating lead zinc to difficultly select ore
CN102274797A (en) * 2011-08-16 2011-12-14 鞍钢集团矿业公司 Sorting process capable of improving sorting indexes of siderite-containing ore
CN103691566B (en) * 2013-12-17 2015-09-09 广西大学 One garnet method of FLOTATION SEPARATION from the brown iron ore concentrate of magnetic separation

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