CN105271309A - Method for extraction of potassium chloride crude product from sylvine ore by triboelectric separation - Google Patents
Method for extraction of potassium chloride crude product from sylvine ore by triboelectric separation Download PDFInfo
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- CN105271309A CN105271309A CN201510614524.4A CN201510614524A CN105271309A CN 105271309 A CN105271309 A CN 105271309A CN 201510614524 A CN201510614524 A CN 201510614524A CN 105271309 A CN105271309 A CN 105271309A
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- ore
- repone
- sylvite ore
- thick product
- sylvite
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Abstract
A method for extraction of a potassium chloride crude product from sylvine ore by triboelectric separation comprises the following steps: (1) crushing, to be more specific, solid sylvine ore is crushed, the material particle size is controlled in the range of 1-2mm; (2) ore grinding, to be more specific, the material crushed in the step (1) is ground until the mass content of the material less than or equal to 200 mesh is greater than or equal to 90%; (3) surface pretreatment, to be more specific, the material ground in the step (1) is sent into a preprocessor, and is added with a surface modifier for uniform mixing; and (4) electrostatic separation, to be more specific, the material added with the surface modifier in the step (3) is sent into an electrostatic separator for triboelectric separation of potassium chloride to obtain the potassium chloride crude product. The method does not require the use of saturated liquor, is not affected by factors such as temperature, pressure, and the like, ultimately does not produce sewage, and is simple in process, easy to operate, free of pollution, and good in separation efficiency, the yield is up to 90%; the resulting chloride potassium crude product has good quality, the chloride potassium content is up to 90%, and the economic benefit is obvious.
Description
Technical field
The present invention relates to a kind of method extracting the thick product of Repone K in sylvite ore, be specifically related to a kind of method that friction electrical selection extracts the thick product of Repone K in sylvite ore.
Background technology
Potash fertilizer is one of agricultural three large base fertilizers (N P and K), and China at present potassium deficiency cultivated area accounts for 60% of total cultivated area, seriously have impact on crop yield and quality.China is world's potash fertilizer first country of consumption, and according to inorganic salt industry in China TIA statistics, within 2014, the total Apparent con-sumption of Chinese potash fertilizer reaches 1,742 ten thousand tons, increases by 19.1% than 2013.In the 7 large class Mineral resources that China is the most in short supply (oil gas, high-grad iron ore deposit, sylvite, copper mine, bauxite, manganese ore, chrome ore), sylvite external dependence degree is very high, within 2014, the domestic potash fertilizer output of Repone K reaches the new highest record in history 8,770,000 tons (folding Repone K), import potash fertilizer reaches 8,030,000 tons (material objects), importation dependence about 50%.
At present, the treatment process of solid sylvite ore has flotation process, thermosoling, cold decomposition-flotation process, cool technology-crystallization method, reverse flotation-method such as cold junction crystallization, dense medium method.In the process, flotation process needs the saturated mother liquor of sylvite to remove Isolating chlorinated potassium and sodium-chlor as medium, and thermosoling exists the obviously inferior position such as high temperature, high pressure, and dense medium method is also just to its effect of special ore body competence exertion.
Friction electrical selection is used in agricultural and coal industry usually, and friction electrical selection is used for sylvite, there is essential distinction compared with agricultural, coal industry.CN102580853A discloses a kind of modification processing method being applicable to dust coal friction electrical selection, because the component of sylvite ore and dust coal also exists huge difference with granularity etc. of dissociating, so the technical matters of dust coal is not suitable for sylvite ore, such as dust coal granularity is generally less than 0.074mm, organic and mineral substance ability fundamental solution from, the granularity of sylvite then needs to control, in thicker scope, just can ensure the liberation degree of mineral.So far there are no the relevant report adopting friction electrical selection to extract Potassium Chloride Product from sylvite ore.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the above-mentioned defect that prior art exists, and provide a kind of technical process simple, good separation effect, Repone K yield is high, without the method for the thick product of Repone K in the friction electrical selection extraction sylvite ore that waste water produces.
The technical solution adopted for the present invention to solve the technical problems is as follows: a kind of friction electrical selection extracts the method for the thick product of Repone K in sylvite ore, comprises the following steps:
(1) broken: solid sylvite ore is carried out fragmentation, controlling raw meal particle size scope is 1 ~ 2mm;
(2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, is milled to≤mass content >=90% of 200 order materials;
(3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds surface-modifying agent and mix;
(4) electrostatic separation: step (3) is added the material after surface-modifying agent and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K.
Further, in step (3), the add-on of described surface-modifying agent is 18 ~ 2000g/t sylvite ore.If lower than 18g/t sylvite ore, surface-modifying agent and target minreal then can be caused fully not to have an effect, if higher than 2000g/t sylvite ore, surface-modifying agent and non-target minreal will be made to have an effect, reduce grade and the yield of succeeding target mineral friction electrical selection.
Further, in step (3), the add-on of described surface-modifying agent is 20 ~ 500g/t sylvite ore.
Further, in step (3), described surface-modifying agent is one or more in Sodium hexametaphosphate 99, Whitfield's ointment, stearylamine, amino dodecane or Xylo-Mucine etc.
Further, in step (1), the main component of described sylvite ore is KCl and NaCl, and wherein, the mass content of KCl is 40% ~ 50%.
Further, the mass percentage of described NaCl is 50% ~ 60%.
Further, in step (1), the main component of described sylvite ore is KCl, NaCl and KClMgCl
26H
2o, wherein, the mass content of KCl is 25% ~ 40%(preferably 30% ~ 35%).
Further, the mass percentage of described NaCl is 50% ~ 74%, KClMgCl
26H
2the mass percentage of O is 1% ~ 10%.
Further, in step (1), described crumbling method is two sections of closed circuit crushings.Research shows, if solid potassium salt ore particle degree < is 1mm, although ensure that the dissociation degree of sylvite ore, but other non-target minreal granularity is meticulous, be unfavorable for being separated of Repone K and sodium-chlor, if solid potassium salt ore particle degree > is 2mm, sylvite ore just can not fully be dissociated, and affects the grade of the finished product; Two sections of closed circuit crushings are conducive to controlling solid potassium salt ore deposit particle size after cracking, thus sylvite ore is fully dissociated.
The present invention is by adding surface-modifying agent to play the charged character changing target minreal and non-target minreal surface in the sylvite breeze after ore grinding, make Repone K surface band negative charge in friction electrical selection, sodium-chlor surface band positive charge, finally realizes friction electrical selection and is separated.
The beneficial effect of the inventive method is: compared with the existing technology, the maximum feature of the present invention does not need to utilize saturated mother liquor, there is not the influence factor such as temperature, pressure yet, finally do not have sewage to produce, technical process is simple, workable, pollution-free, good separation effect, the thick product yield of the inventive method is high, and yield can up to 90%; The thick good product quality of gained Repone K, KCl content can up to 90%, and economic benefit is obvious.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
In the embodiment of the present invention, sylvite ore used belongs to solid sylvite class; Other chemical reagent used, if no special instructions, is all obtained by routine business approach.
embodiment 1
(1) broken: solid sylvite ore (main component: KCl and NaCl, wherein, KCl mass percentage is 43%, NaCl mass percentage is 55%) is carried out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 2mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 90%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 20g Sodium hexametaphosphate 99/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after Sodium hexametaphosphate 99 and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 90%, KCl yield is 89%.
embodiment 2
(1) broken: solid sylvite ore (main component: KCl and NaCl, wherein, KCl mass percentage is 45%, NaCl mass percentage is 50%) is carried out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 1.5mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 90%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 20g Whitfield's ointment/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after Whitfield's ointment and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 89.4%, KCl yield is 90%.
embodiment 3
(1) broken: by solid sylvite ore (main component: KCl, NaCl and KClMgCl
26H
2o, wherein, KCl mass percentage is 30%, NaCl mass percentage is 60%, KClMgCl
26H
2o mass percentage is 8%) carry out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 1.5mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 90%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 200g amino dodecane/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after amino dodecane and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 75.4%, KCl yield is 90%.
embodiment 4
(1) broken: by solid sylvite ore (main component: KCl, NaCl and KClMgCl
26H
2o, wherein, KCl mass percentage is 35%, NaCl mass percentage is 60%, KClMgCl
26H
2o mass percentage is 3%) carry out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 2mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 90%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 500g stearylamine/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after stearylamine and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 80%, KCl yield is 89%.
embodiment 5
(1) broken: by solid sylvite ore (main component: KCl, NaCl and KClMgCl
26H
2o, wherein, KCl mass percentage is 35%, NaCl mass percentage is 60%, KClMgCl
26H
2o mass percentage is 3%) carry out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 2mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 94%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 200g Xylo-Mucine/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after Xylo-Mucine and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 76%, KCl yield is 90%.
embodiment 6
(1) broken: by solid sylvite ore (main component: KCl, NaCl and KClMgCl
26H
2o, wherein, KCl mass percentage is 30%, NaCl mass percentage is 55%, KClMgCl
26H
2o mass percentage is 3%) carry out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 2mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 90%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 1000g surface-modifying agent (500g Xylo-Mucine+500g amino dodecane)/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after Xylo-Mucine and amino dodecane and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 72%, KCl yield is 89%.
embodiment 7
(1) broken: by solid sylvite ore (main component: KCl, NaCl and KClMgCl
26H
2o, wherein, KCl mass percentage is 30%, NaCl mass percentage is 55%, KClMgCl
26H
2o mass percentage is 3%) carry out two sections of closed circuit crushings, controlling raw meal particle size scope is 1 ~ 2mm; (2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, be milled to≤mass content of 200 order materials is 94%; (3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds 1800g surface-modifying agent (900g Xylo-Mucine+900g stearylamine)/t sylvite ore and mix; (4) electrostatic separation: step (3) is added the material after Xylo-Mucine and stearylamine and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K, and KCl content is 75%, KCl yield is 90%.
Claims (9)
1. friction electrical selection extracts a method for the thick product of Repone K in sylvite ore, it is characterized in that: comprise the following steps:
(1) broken: solid sylvite ore is carried out fragmentation, controlling raw meal particle size scope is 1 ~ 2mm;
(2) ore grinding: the material after step (1) gained fragmentation is carried out ore grinding, is milled to≤mass content >=90% of 200 order materials;
(3) surface preparation: the material after step (2) gained ore grinding is sent into pretreater, adds surface-modifying agent and mix;
(4) electrostatic separation: step (3) is added the material after surface-modifying agent and send into electrostatic separator, triboelectricity selects Repone K, obtains the thick product of Repone K.
2. friction electrical selection extracts the method for the thick product of Repone K in sylvite ore according to claim 1, and it is characterized in that: in step (3), the add-on of described surface-modifying agent is 18 ~ 2000g/t sylvite ore.
3. according to claim 1 or 2, friction electrical selection extracts the method for the thick product of Repone K in sylvite ore, and it is characterized in that: in step (3), the add-on of described surface-modifying agent is 20 ~ 500g/t sylvite ore.
4. the method for the thick product of Repone K in sylvite ore is extracted according to the described friction electrical selection of one of claims 1 to 3, it is characterized in that: in step (3), described surface-modifying agent is one or more in Sodium hexametaphosphate 99, Whitfield's ointment, stearylamine, amino dodecane or Xylo-Mucine.
5. extract the method for the thick product of Repone K in sylvite ore according to the described friction electrical selection of one of Claims 1 to 4, it is characterized in that: in step (1), the main component of described sylvite ore is KCl and NaCl, and wherein, the mass content of KCl is 40% ~ 50%.
6. friction electrical selection extracts the method for the thick product of Repone K in sylvite ore according to claim 5, it is characterized in that: the mass percentage of described NaCl is 50% ~ 60%.
7. extract the method for the thick product of Repone K in sylvite ore according to the described friction electrical selection of one of claim 1 ~ 6, it is characterized in that: in step (1), the main component of described sylvite ore is KCl, NaCl and KClMgCl
26H
2o, wherein, the mass content of KCl is 25% ~ 40%.
8. friction electrical selection extracts the method for the thick product of Repone K in sylvite ore according to claim 7, it is characterized in that: the mass percentage of described NaCl is 50% ~ 74%, KClMgCl
26H
2the mass percentage of O is 1% ~ 10%.
9. extract the method for the thick product of Repone K in sylvite ore according to the described friction electrical selection of one of claim 1 ~ 8, it is characterized in that: in step (1), described crumbling method is two sections of closed circuit crushings.
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| CN201510614524.4A CN105271309B (en) | 2015-09-24 | 2015-09-24 | A kind of method that friction electrical selection extracts potassium chloride crude product in sylvite ore |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470012A (en) * | 2017-07-05 | 2017-12-15 | 昆明理工大学 | A kind of extracting method of apatite minal |
| CN108726522A (en) * | 2018-05-30 | 2018-11-02 | 云南永昌硅业股份有限公司 | A kind of white residue electoral method effectively improving silicon metal recovery rate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3225924A (en) * | 1961-08-26 | 1965-12-28 | Kali Forschungs Anstalt | Process for the electrostatic separation of carnallite-containing crude salts |
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2015
- 2015-09-24 CN CN201510614524.4A patent/CN105271309B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3225924A (en) * | 1961-08-26 | 1965-12-28 | Kali Forschungs Anstalt | Process for the electrostatic separation of carnallite-containing crude salts |
Non-Patent Citations (1)
| Title |
|---|
| 董晓铭等: "地下可溶性固体钾盐矿加工氯化钾新工艺探索", 《盐业与化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470012A (en) * | 2017-07-05 | 2017-12-15 | 昆明理工大学 | A kind of extracting method of apatite minal |
| CN107470012B (en) * | 2017-07-05 | 2020-04-07 | 昆明理工大学 | Method for extracting apatite pure mineral |
| CN108726522A (en) * | 2018-05-30 | 2018-11-02 | 云南永昌硅业股份有限公司 | A kind of white residue electoral method effectively improving silicon metal recovery rate |
| CN108726522B (en) * | 2018-05-30 | 2020-02-07 | 云南永昌硅业股份有限公司 | Silicon slag electric separation method capable of effectively improving silicon metal recovery rate |
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