CN102151616A - Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation - Google Patents
Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation Download PDFInfo
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- CN102151616A CN102151616A CN2011100250889A CN201110025088A CN102151616A CN 102151616 A CN102151616 A CN 102151616A CN 2011100250889 A CN2011100250889 A CN 2011100250889A CN 201110025088 A CN201110025088 A CN 201110025088A CN 102151616 A CN102151616 A CN 102151616A
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Abstract
The invention relates to a method for separating lepidolite ore concentrates from tantalum-niobium tailings through flotation. In the method, the lepidolite ore concentrates are obtained from the tantalum-niobium tailings through the flotation by using a flotation agent compounded by alkyl primary amine salt, alkyl mixed alcohol and alkali metal salt within the pH range of 5-9, wherein the alkyl primary amine salt is generated by reacting one or more of alkyl primary amines with the carbon chain lengths of 8-18 with hydrochloric acid or acetic acid; the alkyl mixed alcohol has the carbon chain lengths of 2-12; and the alkali metal salt is sodium chloride and/or potassium chloride. By means of the method disclosed by the invention, the alkyl primary amine salt, the alkyl mixed alcohol and the alkali metal salt are prepared into a water solution with the amine mass fraction of 0.5-5 percent as the flotation agent according to a certain proportion; in addition, compared with the traditional coconut oil primary amine flotation agent, the flotation agent has low dosage, good selectivity and high lepidolite recovery rate.
Description
[technical field] the present invention relates to a kind of method that obtains the lepidolite concentrate, specifically, be a kind of from tantalum niobium mine tailing the method for FLOTATION SEPARATION lepidolite concentrate.
[background technology] Yichuan lepidolite is that maximum lithium resource has been verified and developed in China up to now, the lithia the exploited reserves that Yichuan tantalum niobium concentrate is now verified are 1,100,000 tons, account for 31% of the whole nation, 12% of the world is maximum in the world ore class lithium mine.Yichuan tantalum niobium concentrate adopts floatation to reclaim for the lepidolite in the mine tailing now.By the flotation flowsheet of " one thick one single-minded sweeping ", use cocounut oil primary amine aqueous hydrochloric acid solution to produce as floating agent, gangue mainly is an albite, muscovite etc.The cocounut oil primary amine also has certain flotation effect for other ore, so the lepidolite concentrate grade that this method flotation obtains is lower, and floating range is bigger, in the lepidolite concentrate lithium content generally 3.5～4.5% (with Li
2O meter), and the lepidolite rate of recovery has only 40～50%, caused the waste of resource.And the cocounut oil primary amine is water-soluble bad, and crystalline temperature is about 17 ℃, so flotation effect is subjected to seasonal effect very big, winter, output and quality were all relatively poor.
Open CN101736169A of application for a patent for invention and CN101302018A have mentioned from lepidolite and have put forward the method that lithium prepares lithium carbonate, but these patents all are with Li
2O content is raw material at lepidolite concentrate more than 4.5%.Huang Yulin etc. introduced the floating agent research overview of tantalum niobium concentrate thing in " rare metal " 2006 the 30th the 6th phases of volume, main floating agent comprises fatty acid, phosphonic acid based, hydroximic acid, arsenic acid class and cationic, but the floating agent of tantalum niobium mine tailing lepidolite is not described.The Chen Ming magnitude was introduced Yichuan tantalum niobium concentrate lepidolite flotation technology transformation practice in " non-ferrous metal (ore dressing part) " the 2nd phase in 2005, the floating agent that this technology adopts is a cocounut oil primary amine class, because the freezing point height (17 ℃) of medicament, winter easy conglomerate, the medicament result of use is poor, directly has influence on the quality and quantity of product.
[summary of the invention]
The objective of the invention is in order to improve the deficiencies in the prior art,, from tantalum niobium mine tailing, reach the higher rate of recovery and selectivity during the FLOTATION SEPARATION lepidolite with a kind of floating agent of novel built.
A kind of floating agent of the present invention is made up of following mass ratio: kiber alkyl amine 10～100, alkyl mixed alcohol 10～100, alkali metal salt 0.1～50.Its medicament specifically consists of: one or more in the kiber alkyl amine of carbon chain lengths 8～18, after hydrochloric acid or acetic acid mix with 1: 1～1: 5 ratio of mass ratio, add quality and mostly be 50% alkali metal salt of kiber alkyl amine quality most, be mixed with the aqueous solution of amine mass fraction 0.5%～5%.Described alkali metal salt is meant sodium chloride and/or potassium chloride.The alkyl mixed alcohol is meant one or more in the long-chain alkyl alcohol of carbon chain lengths 8～12, adds ethanol, propyl alcohol or the butanols of 1～1000 times of volume ratio, is mixed with alkyl mixed alcohol solution.Tantalum niobium mine tailing slurry solid content is 10～50% during floating operation, the pH value 5～9 of ore pulp.
Optimized technical scheme of the present invention is: dodecyl primary amine 25g, acetic acid 30g, n-octyl alcohol 1g, ethanol 20g, sodium chloride 5g.Dodecyl primary amine and acetic acid are mixed, add the mixed alcohol of n-octyl alcohol ethanol then, add sodium chloride again, mix, and be mixed with 5% the aqueous solution, and it is that 30% ore pulp is sized mixing that the floating agent that is mixed with is used to handle 1 ton of solid content, the back that stirs adds flotation cell and carries out flotation.
[specific embodiment]
Below provide the present invention a kind of from tantalum niobium mine tailing the specific embodiment of FLOTATION SEPARATION lepidolite concentrate.
Embodiment 1
Present embodiment flotation Yichuan per ton tantalum niobium mine tailing uses dodecyl primary amine 25g, hydrochloric acid 30g, and n-octyl alcohol 1g, ethanol 20g, sodium chloride 5g is as the raw material of composite floating agent.Dodecyl primary amine and acetic acid is mixed and made into 5% the aqueous solution.With dodecyl primary amine and mixed in hydrochloric acid, add the mixed alcohol of n-octyl alcohol ethanol then, add sodium chloride again, mix, and be mixed with 5% the aqueous solution, and it is that 30% ore pulp is sized mixing that the floating agent that is mixed with is used to handle 1 ton of solid content, the back that stirs adds flotation cell and carries out flotation.Tantalum niobium mine tailing before the flotation is without further screening, and granularity is below 1mm, and wherein the lithia grade is 1.30%.Tantalum niobium mine tailing per ton can floatingly select lepidolite concentrate 167kg, lithia grade 4.27% in the concentrate.
Embodiment 2
Present embodiment flotation Yichuan per ton tantalum niobium mine tailing uses cocounut oil primary amine 20g, hydrochloric acid 40g, and NaOH 8g, n-octyl alcohol 0.5g, lauryl alcohol 0.5g, ethanol 40g, potassium chloride 1g is as the raw material of composite floating agent.With cocounut oil primary amine and mixed in hydrochloric acid, add NaOH and potassium chloride again, make 2% the aqueous solution.Add n-octyl alcohol lauryl alcohol alcohol mixed solution then, add potassium chloride again, mix, it is that 40% ore pulp is sized mixing that the floating agent that is mixed with is used to handle 1 ton of solid content, and the back that stirs adds flotation cell and carries out flotation.Tantalum niobium mine tailing before the flotation is without further screening, and granularity is below 1mm, and wherein the lithia grade is 1.30%.Tantalum niobium mine tailing per ton can floatingly select lepidolite concentrate 183kg, lithia grade 4.13% in the concentrate.
Embodiment 3
Present embodiment flotation Yichuan per ton tantalum niobium mine tailing uses dodecyl primary amine 20g, octadecyl primary amine 25g, and acetic acid 60g, NaOH 5g, potassium hydroxide 5g, n-octyl alcohol 0.5g, lauryl alcohol 1g, ethanol 80g is as the raw material of composite floating agent.Dodecyl primary amine, octadecyl primary amine and acetic acid are mixed, add NaOH and potassium hydroxide again, make the ore pulp that 1% the aqueous solution and n-octyl alcohol lauryl alcohol alcohol mixed solution successively add solid content 20% and size mixing.The back adding flotation cell that stirs carries out flotation.Tantalum niobium mine tailing before the flotation is without further screening, and granularity is below 1mm, and wherein the lithia grade is 1.30%.Tantalum niobium mine tailing per ton can floatingly select lepidolite concentrate 194kg, lithia grade 4.16% in the concentrate.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (4)
1. the method for a FLOTATION SEPARATION lepidolite concentrate from tantalum niobium mine tailing, it is characterized in that, concrete steps are: in pH5～9 scopes, use kiber alkyl amine salt, alkyl mixed alcohol and alkali metal salt, the aqueous solution that is mixed with amine mass fraction 0.5～5% by a certain percentage is as floating agent.Mass ratio is: kiber alkyl amine salt (with the kiber alkyl amine Mass Calculation) 10～100, alkyl mixed alcohol 1～100, alkali metal salt 0.1～50.Tantalum niobium mine tailing ore pulp solid content is 10～50%, and flotation tantalum niobium per ton mine tailing ore uses the composite floating agent aqueous solution 100～40000g.
2. as claimed in claim 1 a kind of from tantalum niobium mine tailing the method for FLOTATION SEPARATION lepidolite concentrate, it is characterized in that, described kiber alkyl amine salt is by in the kiber alkyl amine of carbon chain lengths 8～18 one or more, mix with 1: 1～1: 5 ratio of mass ratio with hydrochloric acid or acetic acid, reaction generates kiber alkyl amine salt.
3. as claimed in claim 1 a kind of from tantalum niobium mine tailing the method for FLOTATION SEPARATION lepidolite concentrate, it is characterized in that, described alkyl mixed alcohol is meant one or more in the long-chain alkyl alcohol of carbon chain lengths 8～12, the adding volume ratio is 1～1000 times ethanol, propyl alcohol or a butanols, is mixed with the alkyl mixed alcohol.
4. as claimed in claim 1 a kind of from tantalum niobium mine tailing the method for FLOTATION SEPARATION lepidolite concentrate, it is characterized in that described alkali metal salt is meant sodium chloride and/or potassium chloride, the quality of adding mostly is 50% of kiber alkyl amine quality most.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110025088.9A CN102151616B (en) | 2011-01-24 | 2011-01-24 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
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| CN201110025088.9A CN102151616B (en) | 2011-01-24 | 2011-01-24 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
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| CN102151616A true CN102151616A (en) | 2011-08-17 |
| CN102151616B CN102151616B (en) | 2014-05-07 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284373A (en) * | 2011-08-29 | 2011-12-21 | 江西理工大学 | Process for floating lepidolite |
| CN104741245A (en) * | 2015-04-22 | 2015-07-01 | 江西旭锂矿业有限公司 | Novel lepidolite floating selecting method, collecting agent and application thereof |
| CN104941780A (en) * | 2015-07-02 | 2015-09-30 | 中国瑞林工程技术有限公司 | Mineral processing technology capable of effectively separating tantalum, tin and lepidomelane |
| CN105251622A (en) * | 2015-11-17 | 2016-01-20 | 江西科技师范大学 | Beneficiation inhibitor used in lepidolite flotation process |
| CN105251606A (en) * | 2014-12-29 | 2016-01-20 | 江西金辉环保科技有限公司 | Refining process for lepidolite in tantalum-niobium ore waste rocks |
| CN105413876A (en) * | 2015-12-09 | 2016-03-23 | 江西科技师范大学 | Mineral separation activating agent used in lepidolite flotation process |
| CN106179716A (en) * | 2016-07-09 | 2016-12-07 | 中国地质科学院郑州矿产综合利用研究所 | Sorting process for lithium rubidium rare metal ore |
| CN108525858A (en) * | 2018-04-19 | 2018-09-14 | 江西金辉再生资源股份有限公司 | The method of tantalum niobium ore dressing plant tailings recycling lepidolite concentrate |
| CN108993765A (en) * | 2018-07-16 | 2018-12-14 | 广东省资源综合利用研究所 | A method of the spodumene concentrate FLOTATION SEPARATION tantalum niobium and spodumene of the niobium containing tantalum |
| CN113333174A (en) * | 2021-05-13 | 2021-09-03 | 西北矿冶研究院 | Beneficiation reagent for flotation of tantalum and niobium in tantalum-niobium ore and preparation method thereof |
| CN115025886A (en) * | 2022-06-24 | 2022-09-09 | 江西启志辰新材料有限公司 | Lepidolite flotation reagent and application |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284373A (en) * | 2011-08-29 | 2011-12-21 | 江西理工大学 | Process for floating lepidolite |
| CN105251606B (en) * | 2014-12-29 | 2017-11-21 | 江西金辉环保科技有限公司 | The refining technique of lepidolite in a kind of tantalum niobium concentrate barren rock |
| CN105251606A (en) * | 2014-12-29 | 2016-01-20 | 江西金辉环保科技有限公司 | Refining process for lepidolite in tantalum-niobium ore waste rocks |
| CN104741245A (en) * | 2015-04-22 | 2015-07-01 | 江西旭锂矿业有限公司 | Novel lepidolite floating selecting method, collecting agent and application thereof |
| CN104941780A (en) * | 2015-07-02 | 2015-09-30 | 中国瑞林工程技术有限公司 | Mineral processing technology capable of effectively separating tantalum, tin and lepidomelane |
| CN105251622A (en) * | 2015-11-17 | 2016-01-20 | 江西科技师范大学 | Beneficiation inhibitor used in lepidolite flotation process |
| CN105413876A (en) * | 2015-12-09 | 2016-03-23 | 江西科技师范大学 | Mineral separation activating agent used in lepidolite flotation process |
| CN106179716A (en) * | 2016-07-09 | 2016-12-07 | 中国地质科学院郑州矿产综合利用研究所 | Sorting process for lithium rubidium rare metal ore |
| CN108525858A (en) * | 2018-04-19 | 2018-09-14 | 江西金辉再生资源股份有限公司 | The method of tantalum niobium ore dressing plant tailings recycling lepidolite concentrate |
| CN108993765A (en) * | 2018-07-16 | 2018-12-14 | 广东省资源综合利用研究所 | A method of the spodumene concentrate FLOTATION SEPARATION tantalum niobium and spodumene of the niobium containing tantalum |
| CN108993765B (en) * | 2018-07-16 | 2020-07-28 | 广东省资源综合利用研究所 | Method for flotation separation of tantalum, niobium and spodumene from spodumene concentrate containing tantalum and niobium |
| CN113333174A (en) * | 2021-05-13 | 2021-09-03 | 西北矿冶研究院 | Beneficiation reagent for flotation of tantalum and niobium in tantalum-niobium ore and preparation method thereof |
| CN113333174B (en) * | 2021-05-13 | 2022-05-31 | 西北矿冶研究院 | Beneficiation reagent for flotation of tantalum and niobium in tantalum-niobium ore and preparation method thereof |
| CN115025886A (en) * | 2022-06-24 | 2022-09-09 | 江西启志辰新材料有限公司 | Lepidolite flotation reagent and application |
| CN115025886B (en) * | 2022-06-24 | 2023-09-05 | 江西启志辰新材料有限公司 | Lepidolite flotation reagent and application |
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