CN102935408A - Flotation reagent for pyrites, preparation process of flotation reagent and flotation process - Google Patents
Flotation reagent for pyrites, preparation process of flotation reagent and flotation process Download PDFInfo
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- CN102935408A CN102935408A CN2012104402387A CN201210440238A CN102935408A CN 102935408 A CN102935408 A CN 102935408A CN 2012104402387 A CN2012104402387 A CN 2012104402387A CN 201210440238 A CN201210440238 A CN 201210440238A CN 102935408 A CN102935408 A CN 102935408A
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Abstract
The invention relates to the field of mineral separation and particularly relates to a flotation reagent for pyrites, a preparation process of flotation reagent and a flotation process. By the aid of the flotation reagent, the preparation process and the flotation process, the pyrite grade of sulfur concentrates selected through flotation can be effectively improved. According to the flotation reagent and the preparation process thereof, sodium butyl xanthate, terpenic oil and caustic soda are poured into a container in proportion and are mixed, and the flotation reagent used for every ton of pyrites comprises, by weight, 300-500 g of the sodium butyl xanthate, 1-2 g of terpenic oil and 1-3 g of caustic soda. The flotation process in which the flotation reagent is used for selecting sulfur concentrates comprises the steps of crushing pyrites to obtain mineral aggregate particles; adding water in mineral aggregate particles, and mixing and stirring to form pulp; adding the flotation reagent which is prepared in advance into the pulp, and mixing to obtain mixed pulp, wherein the flotation reagent comprises the sodium butyl xanthate, the terpenic oil and the caustic soda; and conducting flotation for the mixed pulp through a flotation technology to obtain sulfur concentrates.
Description
Technical field
The present invention relates to ore dressing field, relate in particular to floating agent for troilite and preparation method thereof and method for floating.
Background technology
Troilite is widely used in relieving haperacidity and iron industry.The ore dressing plant generally adopts flotation technology to select the sulphur concentrate, contains sulphur composition and iron composition in this sulphur concentrate.Existing method for floating may further comprise the steps:
Troilite is pulverized, obtained the mineral aggregate particle;
Described mineral aggregate particle is added the water mixing and stir the formation ore pulp;
In described ore pulp, add floating agent and mixing, obtain mixed ore pulp;
Described mixed ore pulp is carried out flotation through flotation technology, obtain the sulphur concentrate.
Yet, the sulphur concentrate that adopts existing floating agent to floatingly select, its sulphur iron grade is lower, generally only reaches sulfur-bearing iron about 40%.
Summary of the invention
The invention provides floating agent for troilite and preparation method thereof and method for floating, the sulphur iron grade of the sulphur concentrate that can Effective Raise floatingly selects.
In order to achieve the above object, technical scheme of the present invention is achieved in that
Be used for the floating agent of troilite, comprise:
Sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
Further,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
Further, by weight percentage, described troilite is the low grade pyrite of sulfur-bearing 18%-22%.
The present invention also provides the preparation method of above-mentioned floating agent, it is characterized in that,
Pour in a container and stirring by proportioning sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
Further, the described floating agent in the described container,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
The present invention also provides the method for floating that is used for troilite, comprising:
Troilite is pulverized, obtained the mineral aggregate particle;
Described mineral aggregate particle is added the water mixing and stir the formation ore pulp;
In described ore pulp, add floating agent and the mixing of preparing in advance, obtain mixed ore pulp, wherein, described floating agent comprises sodium n-butyl xanthate, terpenic oil, caustic soda, and the described floating agent that is used for by weight, described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda;
Described mixed ore pulp is carried out flotation through flotation technology, obtain the sulphur concentrate.
Further, add in the floating agent of preparing in advance and the step of mixing in described ore pulp described,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
Further, before described mineral aggregate particle being added the water mixing and stirring, also comprise:
With described mineral aggregate particle transport to grader;
This grader screens this mineral aggregate particle, isolates the foreign material in this mineral aggregate particle, obtains the higher mineral aggregate particle of purity.
Further, describedly described mixed ore pulp carried out the step that flotation obtains the sulphur concentrate through flotation technology comprise:
Described mixed ore pulp is sent in the flotation device;
Flotation device carries out flotation to this mixed ore pulp, obtains the sulphur concentrate pulp;
Described sulphur concentrate pulp is sent in the ceramic filter;
This ceramic filter carries out drying to this sulphur concentrate pulp, obtains the sulphur concentrate.
Further,
The granularity of described mineral aggregate particle is negative 250 orders of negative 200-;
And/or,
Described ore pulp, concentration by weight percentage, this concentration is 28%-35%.
Compared with prior art, floating agent for troilite provided by the invention and preparation method thereof and method for floating, this floating agent comprises sodium n-butyl xanthate, terpenic oil, caustic soda, and the described floating agent that is used for by weight, described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.Wherein, caustic soda can be so that the harmful element that contains in the troilite or material separate rapidly and precipitation, and discharge through the tailings pipeline of flotation device, thereby, so that do not contain any harmful element or material in the sulphur concentrate that floatingly selects.Like this, in method for floating, adopt the sulphur iron grade of the sulphur concentrate that the above-mentioned floating agent that contains caustic soda floatingly selects to effectively improve, generally can reach sulfur-bearing iron more than 45%.
In addition, by floating agent for troilite provided by the invention and preparation method thereof and method for floating, can also reach following good effect:
1, in addition, in this floating agent, terpenic oil is so that the surface blistering of the mineral aggregate particle that troilite obtains through pulverizing, thereby make sodium n-butyl xanthate reach better collecting function, and the sodium n-butyl xanthate sulfur and iron elements in the collecting troilite to greatest extent increases the rate of recovery of sulphur iron composition in the troilite.Thereby so that for troilite, wherein the rate of recovery of sulphur composition effectively improves, generally can reach more than 95%;
2, be different from the prior art, in order to make more high-grade sulphur concentrate, when adopting the troilite material, must adopt the higher troilite of sulfur-bearing grade, generally about 60%; And among the present invention, owing to having adopted the floating agent of constant weight proportioning, thereby so that the requirement of troilite material is reduced, adopt the lower troilite material of sulfur-bearing grade to get final product, generally between 18%-22%.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of a kind of method for floating for troilite that Fig. 1 provides for the embodiment of the invention five;
The another kind that Fig. 2 provides for the embodiment of the invention six is used for the flow chart of the method for floating of troilite;
The module map of a kind of floatation system for troilite that Fig. 3 provides for the embodiment of the invention seven;
The another kind that Fig. 4 provides for the embodiment of the invention eight is used for the module map of the floatation system of troilite.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
The embodiment of the invention one provides a kind of floating agent for troilite, comprise: sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
Embodiment two
The embodiment of the invention two provides the another kind of floating agent that is used for troilite, comprises by weight, and the described floating agent that is used for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
Particularly, in the present embodiment, by weight percentage, described troilite is the troilite of sulfur-bearing 18%-22%.
Embodiment three
For embodiment one, the embodiment of the invention three provides a kind of preparation method of the floating agent for troilite, comprising:
Pour in a container and stirring by proportioning sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
Embodiment four
For embodiment two, the embodiment of the invention four provides the another kind of preparation method who is used for the floating agent of troilite, comprising:
Pour in a container and stirring by proportioning sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
Embodiment five
The embodiment of the invention five provides a kind of method for floating for troilite, adopts any one floating agent among the embodiment one to four in the method, referring to Fig. 1, comprising:
Step S101: troilite is pulverized, obtained the mineral aggregate particle;
Step S102: described mineral aggregate particle is added the water mixing and stir the formation ore pulp;
Step S103: in described ore pulp, add floating agent and the mixing of preparing in advance, obtain mixed ore pulp, wherein, described floating agent comprises sodium n-butyl xanthate, terpenic oil, caustic soda, and the described floating agent that is used for by weight, described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda;
Step S104: described mixed ore pulp is carried out flotation through flotation technology, obtain the sulphur concentrate.
In the floating agent that the present embodiment adopts, caustic soda can be so that the harmful element that contains in the troilite or material separate rapidly and precipitation, and discharge through the tailings pipeline of flotation device, thereby, so that do not contain any harmful element or material in the sulphur concentrate that floatingly selects.Like this, so that the sulphur iron grade of the sulphur concentrate that floatingly selects effectively improves, generally can reach sulfur-bearing iron more than 45%.
In addition, in this floating agent, terpenic oil is so that the surface blistering of the mineral aggregate particle that troilite obtains through pulverizing, thereby makes sodium n-butyl xanthate reach better collecting function, and the sodium n-butyl xanthate sulfur and iron elements in the collecting troilite to greatest extent increases the rate of recovery of sulphur iron composition in the troilite.Thereby so that for troilite, wherein the rate of recovery of sulphur composition effectively improves, generally can reach more than 95%.
Embodiment six
The embodiment of the invention six provides the another kind of method for floating that is used for troilite, adopts any one floating agent among the embodiment one to four in the method, referring to Fig. 2, specifically may further comprise the steps:
Step 201: troilite is sent in the ball mill by feed bin;
Preferably, in the present embodiment, described troilite is the troilite of sulfur-bearing 18-22%;
Step 202: ball mill carries out repeatedly ball milling to this troilite, obtains the ore particle granularity and is the negative 250 purpose mineral aggregate particles of negative 200-;
Particularly, in the present embodiment, because the surface attachment of troilite has a little moisture, correspondingly, this troilite includes a little moisture in this mineral aggregate particle after ball milling becomes the troilite particle, thereby the form of this mineral aggregate particle is the dense ore pulp of concentration about 80%;
Step 203: with described mineral aggregate particle transport to grader;
Step 204: grader screens this mineral aggregate particle, isolates the foreign material in this mineral aggregate particle, obtains the higher mineral aggregate particle of purity;
Step 205: the mineral aggregate particle that the described purity that obtains through screening is higher adds the water mixing and stirs, and forms ore pulp;
Particularly, in the present embodiment, the concentration of described ore pulp is in the 28%-35% scope;
Step 206: in described ore pulp, add floating agent and the mixing of preparing in advance, obtain mixed ore pulp;
By weight, the described floating agent of described troilite use per ton comprises the sodium n-butyl xanthate of 450-480 gram, the terpenic oil of 1.3-1.8 gram and the caustic soda of 1.5-2 gram;
Particularly, in the present embodiment, by weight, the described floating agent that described troilite per ton uses comprises the sodium n-butyl xanthate of 475 grams, the terpenic oil of 1.6 grams and the caustic soda of 1.8 grams;
Step 207: described mixed ore pulp is delivered in the flotation device;
Step 208: this flotation device carries out flotation to described mixed ore pulp, obtains the sulphur concentrate pulp;
Step 209: described sulphur concentrate pulp is delivered in the ceramic filter;
Step 210: this ceramic filter carries out drying to this sulphur concentrate pulp to be processed, and obtains the sulphur concentrate.
Particularly, in the present embodiment, the grade of this sulphur concentrate is at sulfur-bearing iron more than 45%.
In the present embodiment, be different from the prior art in order to make more high-grade sulphur concentrate, when adopting the troilite material, must adopt the higher troilite of sulfur-bearing grade, generally about 60%; And in the embodiment of the invention, owing to having adopted above-mentioned floating agent, thereby so that the requirement of troilite material is reduced, adopt the lower troilite material of sulfur-bearing grade to get final product, generally between 18-22%.
Simultaneously, before described mineral aggregate particle being added water mixes and stirring, isolate foreign material in the mineral aggregate grain by grader first, thus Effective Raise the quality of the sulphur concentrate that finally makes, reduced the content of impurity in it.
In addition, owing in floatation process, having added the in advance floating agent of preparation, so that when further adopting the sulphur concentrate relieving haperacidity that floatingly selects, ferrous grade reaches more than 65% in the relieving haperacidity slag that produces, belong to the high value slag, can directly be used as the ironmaking material of steel plant, thereby take full advantage of ferro-sulphur ore.
Embodiment seven
For embodiment five, the embodiment of the invention seven provides a kind of floatation system for troilite, referring to Fig. 3, comprising:
Reducing mechanism 31 is used for troilite is pulverized, and obtains the mineral aggregate particle;
Agitating device 32 is used for described mineral aggregate particle is added the water mixing and stirs the formation ore pulp;
Flotation unit 33 is used for after described ore pulp has added the floating agent of preparing in advance the mixed ore pulp that forms being carried out flotation through flotation technology, obtains the sulphur concentrate; Wherein, described floating agent comprises sodium n-butyl xanthate, terpenic oil, caustic soda, and by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
Embodiment eight
For embodiment six, the embodiment of the invention eight provides the another kind of floatation system that is used for troilite, referring to Fig. 4, specifically comprises: reducing mechanism 41, and screening plant 42, agitating device 43, flotation unit 44, particularly:
Reducing mechanism 41 is specially ball mill, is used for adopting this ball mill that this troilite is carried out repeatedly ball milling after troilite is sent into ball mill, obtains the ore particle granularity and is the negative 250 purpose mineral aggregate particles of negative 200-;
Agitating device 43 is specially agitator, is used for the mineral aggregate particle that the described purity that obtains through screening is higher and adds the water mixing and stir the formation ore pulp;
By weight, the described floating agent of described troilite use per ton comprises the sodium n-butyl xanthate of 450-480 gram, the terpenic oil of 1.3-1.8 gram and the caustic soda of 1.5-2 gram;
Particularly, in the present embodiment, by weight, the described floating agent that described troilite per ton uses comprises the sodium n-butyl xanthate of 475 grams, the terpenic oil of 1.6 grams and the caustic soda of 1.8 grams;
Conveying assembly 442 is used for described sulphur concentrate pulp is delivered to ceramic filter 443;
It should be noted that: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. be used for the floating agent of troilite, it is characterized in that, comprising:
Sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
2. floating agent as claimed in claim 1 is characterized in that,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
3. such as claim 1 or the described floating agent of 2 any one, it is characterized in that, by weight percentage, described troilite is the troilite of sulfur-bearing 18%-22%.
4. be used for the preparation method of the floating agent of troilite, it is characterized in that,
Pour in a container and stirring by proportioning sodium n-butyl xanthate, terpenic oil, caustic soda, by weight, the described floating agent that is used for described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda.
5. method as claimed in claim 4 is characterized in that, the described floating agent in the described container,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
6. be used for the method for floating of troilite, it is characterized in that, comprising:
Troilite is pulverized, obtained the mineral aggregate particle;
Described mineral aggregate particle is added the water mixing and stir the formation ore pulp;
In described ore pulp, add floating agent and the mixing of preparing in advance, obtain mixed ore pulp, wherein, described floating agent comprises sodium n-butyl xanthate, terpenic oil, caustic soda, and the described floating agent that is used for by weight, described troilite per ton comprises 300-500 gram sodium n-butyl xanthate, 1-2 gram terpenic oil and 1-3 gram caustic soda;
Described mixed ore pulp is carried out flotation through flotation technology, obtain the sulphur concentrate.
7. method as claimed in claim 6 is characterized in that, add in the floating agent of preparing in advance and the step of mixing in described ore pulp described,
By weight, the described floating agent for described troilite per ton comprises 450-480 gram sodium n-butyl xanthate, 1.3-1.8 gram terpenic oil and 1.5-2 gram caustic soda.
8. such as claim 6 or the described method of 7 any one, it is characterized in that, before described mineral aggregate particle being added the water mixing and stirring, also comprise:
With described mineral aggregate particle transport to grader;
This grader screens this mineral aggregate particle, isolates the foreign material in this mineral aggregate particle.
9. method as claimed in claim 8 is characterized in that, describedly described mixed ore pulp is carried out the step that flotation obtains the sulphur concentrate through flotation technology comprises:
Described mixed ore pulp is sent in the flotation device;
Flotation device carries out flotation to this mixed ore pulp, obtains the sulphur concentrate pulp;
Described sulphur concentrate pulp is sent in the ceramic filter;
This ceramic filter carries out drying to this sulphur concentrate pulp, obtains the sulphur concentrate.
10. method as claimed in claim 9 is characterized in that,
The granularity of described mineral aggregate particle is negative 250 orders of negative 200-;
And/or,
Described ore pulp, concentration by weight percentage, this concentration is 28%-35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104402387A CN102935408A (en) | 2012-11-06 | 2012-11-06 | Flotation reagent for pyrites, preparation process of flotation reagent and flotation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104402387A CN102935408A (en) | 2012-11-06 | 2012-11-06 | Flotation reagent for pyrites, preparation process of flotation reagent and flotation process |
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| CN102935408A true CN102935408A (en) | 2013-02-20 |
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| CN2012104402387A Pending CN102935408A (en) | 2012-11-06 | 2012-11-06 | Flotation reagent for pyrites, preparation process of flotation reagent and flotation process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754830A (en) * | 2014-01-18 | 2014-04-30 | 慈丽 | Process and method for recovering valuable elements of tailing and comprehensively utilizing tailing |
| CN106744713A (en) * | 2015-11-25 | 2017-05-31 | 湖南恒光化工有限公司 | A kind of removal of impurities acid-making process of arsenic-containing pyrite |
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| CN101985111A (en) * | 2010-11-10 | 2011-03-16 | 云南铜业(集团)有限公司 | Copper-sulfur ore separation method |
| CN102357422A (en) * | 2011-08-11 | 2012-02-22 | 施可丰泸州化工有限公司 | Method for producing high-grade sulfur concentrated ore from sulfurous iron ore with stepped flotation method |
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| CN101367063A (en) * | 2007-08-19 | 2009-02-18 | 胡朝剑 | Sulphur shifting method for zinc mine tailing |
| CN101985111A (en) * | 2010-11-10 | 2011-03-16 | 云南铜业(集团)有限公司 | Copper-sulfur ore separation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754830A (en) * | 2014-01-18 | 2014-04-30 | 慈丽 | Process and method for recovering valuable elements of tailing and comprehensively utilizing tailing |
| CN106744713A (en) * | 2015-11-25 | 2017-05-31 | 湖南恒光化工有限公司 | A kind of removal of impurities acid-making process of arsenic-containing pyrite |
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Application publication date: 20130220 |