CN103639060B - Beneficiation method for multi-impurity low-grade refractory fluorite tailings - Google Patents
Beneficiation method for multi-impurity low-grade refractory fluorite tailings Download PDFInfo
- Publication number
- CN103639060B CN103639060B CN201310674936.8A CN201310674936A CN103639060B CN 103639060 B CN103639060 B CN 103639060B CN 201310674936 A CN201310674936 A CN 201310674936A CN 103639060 B CN103639060 B CN 103639060B
- Authority
- CN
- China
- Prior art keywords
- fluorite
- grade
- ore
- flotation
- sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Paper (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a beneficiation method for multi-impurity low-grade refractory fluorite tailings, which comprises the following steps: a. making the tailing ore into ore pulp with the fineness of-200 meshes accounting for more than 90 percent; b. roughing is carried out at normal temperature to obtain rough concentrate with fluorite grade of 60%; c. one-stage selection is carried out to ensure that the grade of fluorite reaches about 80 percent; d. the second-stage concentration makes the fluorite grade reach 90%; e. three-stage concentration is carried out to obtain 95 percent of high-grade fluorite ore and 80 percent of low-grade fluorite ore, the high-grade fluorite ore and the low-grade fluorite ore are produced according to a certain proportion, and finally the recovery rate of fluorite is more than 75 percent.
Description
Technical field
The present invention relates to a kind of fluorite flotation method, particularly relate to a kind of many impurity low-grade refractory and select fluorite slag flyash ore deposit beneficiation method.
Background technology
A large amount of many impurity low-grade refractories can be produced in fluorite production process and select fluorite slag flyash ore deposit.Fluorite mine tailing (low-grade ore) is containing the very low ore of fluorite (CaF2) composition, domestic general fluorite manufacturing enterprise all can not utilize the fluorite (CaF2) contained by the inside again, but collects according to the corresponding fluorite tailing dam of requirement construction in " fluorite industry access condition ".Like this, not only waste resource, and pollution can be produced to environment.China produces the fluorite mine tailing of millions of tons every year, and most of mine tailing is not effectively reclaimed, and the process of these mine tailings needs a large amount of places or Tailings Dam is deposited, and is be take the unreasonable of land resource, causes substantial pollution again to environment.Need to reclaim the fluorite in fluorite slag flyash ore deposit.
From fluorite mine tailing, flotation fluorite is the difficulties of fluorite always.Due to this mine tailing complicated component, dopant species and content many, granularity is comparatively thick, often needs to carry out ore grinding process again to reach the object of micronized particles; Also there is strict requirement in different flotation stage to the kind collocation of medicament and the precision of consumption simultaneously, and when the composition in mine tailing changes, technical staff is needed to make adaptive adjustment to the collocation of medicament and consumption targetedly, in order to reach better flotation effect, just need the monitor closely to whole floatation process, these all cause production cost to increase.Prior art mostly is traditional closed circuit order of chats and returns, high for impurity content, complicated, fluorite grade, at the fluorite mine tailing of about 25%, sequentially returns technological process, the Impurity Potentials such as the calcium carbonate existed in chats, silicate must worsen flotation of ore pulp environment, cause the difficulty of fluorite sorting.The silicate inhibitor that traditional ore-dressing technique is relatively commonly used is waterglass, conventional calcium carbonate inhibitor is modified water glass (acidity), these inhibitor can have good inhibition to impurity in single homework, when these impurity are along with middling recurrence, because collecting agent has certain collecting effect to these impurity, want to suppress these impurity must strengthen inhibitor consumption, certainly will concentrate grade be affected.In prior art, will realize the precise hard_drawn tuhes of collocation to medicament and consumption in different flotation stage, particularly will realize acting synergistically between inhibitor and collecting agent in different flotation stage, its difficulty is very large.From current domestic fluorite spoil reclaming fluorite manufacturer, want the fluorite concentrate obtaining high-quality from low-grade (<30%) fluorite mine tailing, not only require very high to production Technology, and some production costs even exceed in raw ore, so the fluorite resource in fluorite mine tailing is never effectively recycled.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of many impurity low-grade refractory simple to operate, that cost is low and selects fluorite slag flyash ore deposit beneficiation method.
In order to solve the problems of the technologies described above, many impurity low-grade refractory of the present invention selects fluorite slag flyash ore deposit beneficiation method to comprise the steps:
A. ore grinding.Tailings ore is made to be the ore pulp that fineness-200 order accounts for more than 90%;
B. roughly select.Ore pulp after above-mentioned steps process being added pH adjusting agent makes slurry pH be about 8, add waterglass again, each component in ore pulp is fully disperseed, finally adds fluorite collecting agent, stir 10 minutes, the mass ratio of waterglass used and fluorite mine tailing is 1:5000, collecting agent used is oleic acid, and the mass ratio of oleic acid used and fluorite is 1:8000, and roughly selecting flotation pulp concentration is 30%, roughly select and carry out at normal temperatures, obtain the rough concentrate of fluorite grade 60%;
C. one section selected.The rough concentrate obtained after above-mentioned steps process is added appropriate salinization waterglass, removing quartz waits impurity, then carrying out first time flotation makes floating ore pulp fluorite grade reach about 70%, enter second time flotation again, second time flotation is that blank flotation in neutral conditions makes ore pulp fluorite grade reach about 75%, enter third time flotation again, add a small amount of acidified sodium silicate in third time flotation and make fluorite grade reach about 80%;
D. two sections selected.The ore pulp obtained after above-mentioned steps process is entered two sections selected, two sections selected carries out under mildly acidic conditions, adds a small amount of acid inhibitor and is suppressed by impurity, and two sections of selected pulp densities control about 50%, carry out at normal temperatures, make fluorite grade reach 90%;
E. three sections selected.The ore pulp obtained after above-mentioned steps process is entered three sections selected, three sections selected carries out in acid condition, pH value controls about 4, add a small amount of acid inhibitor, three sections of selected pulp densities control about 60%, carry out at normal temperatures, fluorite grade is made to reach 90%, obtain the high-grade fluorite ore of part 95% and the low-grade fluorite ore deposit of part 80%, both are output according to a certain percentage, and final Fluorite recovery rate is greater than 75%.
The closed circuit order of the chats that the present invention breaks traditions returns technique, adopts the new technological flow that segmentation flotation segmentation suppresses, in different flotation operation sections, by rational regime of agent, progressively by different Impurity removals.Meanwhile, three sections of selected separation schemes realizing fluorite product, can obtain the fluorite concentrate of two kinds of different qualities, improve the comprehensive recovery of fluorite.One of method key provided by the invention is to roughly select sizes mixing, and field trial shows, roughly selects the value that pH must reach certain, makes the abundant mineralising of fluorite, just can guarantee that follow-up flotation fluorite does not fall groove.This technique takes segmentation to size mixing, the technological process of segmentation inhibition of impurities, be different from and carry out inhibition of impurities by force by regime of agent in the past merely, this technique increases flotation operation section by extending flotation time, make fluorite and various impurity natural separation, in every section of flotation operation, only add a small amount of inhibitor targetedly, reach the effect suppressing mica, quartz, calcite respectively, greatly reduce production cost.Simultaneously, in order to obtain high-grade fluorite concentrate smoothly, make full use of again the fluorite resource in mine tailing, this technological process realizes two kinds of separation of products schemes in three sections of floatation process, while guarantee obtains partly being greater than 95% high-grade fluorite concentrate, mine tailing reclaims as the metallurgical grade fluorite concentrate being greater than 80% simultaneously, utilizes fluorite resource efficiently.For guaranteeing carrying out smoothly of separation of products scheme, the crucial part of this technique another one is the Grade Control of bis flotation concentrate, must reach more than 90% by two sections of concentrate grades, just be able to two kinds of products in three sections of flotation and guarantee output by a certain percentage.
Adopt method of the present invention, mog accounts for 90% for-200 orders, and control ph of once sizing mixing is 8, using waterglass, acidified sodium silicate etc. as inhibitor, oleic acid is as collecting agent, and segmentation is sized mixing, segmentation inhibition of impurities mica, quartz, calcite, must reach more than 88% by two sections of concentrate grades; Can smoothly from the fluorite mine tailing of raw ore 25% flotation obtain being greater than high-grade fluorite concentrate and grade low-grade fluorite concentrate two kinds of products of being greater than 80% of 95%.Method of the present invention is simple to operate, cost is low.
Detailed description of the invention
Many impurity low-grade refractory of the present invention selects fluorite slag flyash ore deposit beneficiation method to comprise the steps:
A. ore grinding.Tailings ore is made to be the ore pulp that fineness-200 order accounts for more than 90%;
B. roughly select.Ore pulp after above-mentioned steps process being added pH adjusting agent makes slurry pH be about 8, add waterglass again, each component in ore pulp is fully disperseed, finally adds fluorite collecting agent, stir 10 minutes, the mass ratio of waterglass used and fluorite mine tailing is 1:5000, collecting agent used is oleic acid, and the mass ratio of oleic acid used and fluorite is 1:8000, and roughly selecting flotation pulp concentration is 30%, roughly select and carry out at normal temperatures, obtain the rough concentrate of fluorite grade 60%;
C. one section selected.The rough concentrate obtained after above-mentioned steps process is added appropriate salinization waterglass, removing quartz waits impurity, then carrying out first time flotation makes floating ore pulp fluorite grade reach about 70%, enter second time flotation again, second time flotation is that blank flotation in neutral conditions makes ore pulp fluorite grade reach about 75%, enter third time flotation again, add a small amount of acidified sodium silicate in third time flotation and make fluorite grade reach about 80%;
D. two sections selected.The ore pulp obtained after above-mentioned steps process is entered two sections selected, two sections selected carries out under mildly acidic conditions, adds a small amount of acid inhibitor and is suppressed by impurity, and two sections of selected pulp densities control about 50%, carry out at normal temperatures, make fluorite grade reach 90%;
E. three sections selected.The ore pulp obtained after above-mentioned steps process is entered three sections selected, three sections selected carries out in acid condition, pH value controls about 4, add a small amount of acid inhibitor, three sections of selected pulp densities control about 60%, carry out at normal temperatures, fluorite grade is made to reach 90%, obtain the high-grade fluorite ore of part 95% and the low-grade fluorite ore deposit of part 80%, both are output according to a certain percentage, and final Fluorite recovery rate is greater than 75%.
Using waterglass, acidified sodium silicate etc. as inhibitor, oleic acid is as collecting agent.
Roughly selecting institute's with medicament is that medicament is commonly used in ore dressing, select soda ash+caustic soda mixed preparing as pH adjusting agent, the mass ratio of waterglass used and fluorite mine tailing is 1:5000, the mass ratio of oleic acid used and fluorite is 1:8000, whole floatation concentration of roughly selecting is 30%, roughly select and carry out at normal temperatures, when flotation tailing controls namely to roughly select the end of job below 5%.
Claims (1)
1. the low-grade refractory of impurity more than selects a fluorite slag flyash ore deposit beneficiation method, it is characterized in that comprising the steps:
A. ore grinding, makes tailings ore be the ore pulp that fineness-200 order accounts for more than 90%;
B. roughly select, ore pulp after above-mentioned steps process being added pH adjusting agent makes slurry pH be about 8, then adds waterglass, and each component in ore pulp is fully disperseed, finally add fluorite collecting agent, stir 10 minutes, the mass ratio of waterglass used and fluorite mine tailing is 1:5000, and collecting agent used is oleic acid, the mass ratio of oleic acid used and fluorite is 1:8000, roughly selecting flotation pulp concentration is 30%, roughly selects and carries out at normal temperatures, obtains the rough concentrate of fluorite grade 60%;
C. one section selected, the rough concentrate obtained after above-mentioned steps process is added appropriate salinization waterglass, removing quartz waits impurity, then carrying out first time flotation makes floating ore pulp fluorite grade reach about 70%, enter second time flotation again, second time flotation is that blank flotation in neutral conditions makes ore pulp fluorite grade reach about 75%, then enters third time flotation, adds a small amount of acidified sodium silicate and make fluorite grade reach about 80% in third time flotation;
D. two sections selected, the ore pulp obtained after above-mentioned steps process is entered two sections selected, two sections selected carries out under mildly acidic conditions, add a small amount of acid inhibitor impurity is suppressed, two sections of selected pulp densities control about 50%, carry out at normal temperatures, make fluorite grade reach 90%;
E. three sections selected, the ore pulp obtained after above-mentioned steps process is entered three sections selected, three sections selected carries out in acid condition, and pH value controls about 4, adds a small amount of acid inhibitor, three sections of selected pulp densities control about 60%, carry out at normal temperatures, make fluorite grade reach 90%, obtain the high-grade fluorite ore of part 95% and the low-grade fluorite ore deposit of part 80%, both are output according to a certain percentage, and final Fluorite recovery rate is greater than 75%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674936.8A CN103639060B (en) | 2013-12-13 | 2013-12-13 | Beneficiation method for multi-impurity low-grade refractory fluorite tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674936.8A CN103639060B (en) | 2013-12-13 | 2013-12-13 | Beneficiation method for multi-impurity low-grade refractory fluorite tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103639060A CN103639060A (en) | 2014-03-19 |
| CN103639060B true CN103639060B (en) | 2015-06-10 |
Family
ID=50244420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674936.8A Active CN103639060B (en) | 2013-12-13 | 2013-12-13 | Beneficiation method for multi-impurity low-grade refractory fluorite tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639060B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399592B (en) * | 2014-10-24 | 2017-02-15 | 广德县瑞龙新型材料有限公司 | Fluorite floatation process |
| CN104826738B (en) * | 2015-04-24 | 2017-06-16 | 中蓝连海设计研究院 | A kind of stepped-flotation separation method for separating low grade calcite barite fluorite type ore |
| CN105709940B (en) * | 2016-01-29 | 2018-11-30 | 长沙矿冶研究院有限责任公司 | A method of recycling fluorite from polymetallic ore flotation tailing |
| CN106391320A (en) * | 2016-11-28 | 2017-02-15 | 北京矿冶研究总院 | Beneficiation method for high-calcium fluorite |
| CN108993775B (en) * | 2018-08-14 | 2020-05-08 | 锦洋高新材料股份有限公司 | Preparation process of fluorite concentrate |
| CN110560257A (en) * | 2019-09-17 | 2019-12-13 | 长沙三博矿业科技有限公司 | Beneficiation method for recovering associated fluorite from multi-metal tailings |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1110643A (en) * | 1966-02-23 | 1968-04-24 | Nathaniel Arbiter | Benefication of cassiterite ores by froth flotation |
| CN101712014B (en) * | 2009-12-08 | 2012-03-21 | 湖南省铸万有实业有限公司 | Multicategory-impurity single fluorite ore dressing method |
| CN102151615B (en) * | 2010-12-21 | 2013-01-16 | 北京矿冶研究总院 | Fluorite flotation method in high-salinity alkaline water environment |
| CN102580836B (en) * | 2012-02-29 | 2013-09-25 | 深圳市新星轻合金材料股份有限公司 | Equipment used for crushing fluorite tailings, crushing method and fluorite flotation method |
| CN103316770B (en) * | 2013-05-23 | 2015-06-17 | 包钢集团矿山研究院（有限责任公司） | Mineral processing technology for recycling fluorite from baotite, magnetite and tailing |
| CN103316772A (en) * | 2013-06-08 | 2013-09-25 | 中南大学 | Beneficiation method for centralized processing of middlings of high-calcium-carbonate low-grade fluorite mine |
-
2013
- 2013-12-13 CN CN201310674936.8A patent/CN103639060B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103639060A (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103639060B (en) | Beneficiation method for multi-impurity low-grade refractory fluorite tailings | |
| CN104084315B (en) | Beneficiation method for separating fluorite and tungsten through flotation | |
| CN102921551B (en) | Fluorite mineral flotation method | |
| CN101549322B (en) | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate | |
| CN105149100A (en) | Method for recovering barite from lead and zinc tailings | |
| CN105597938A (en) | Beneficiation method of scheelite | |
| CN103301949B (en) | Foaming agent for rare earth ore dressing and normal-temperature ore dressing process of low-grade refractory rare earth ore | |
| CN105381867B (en) | A kind of method for floating of aphanitic graphite | |
| CN102974446A (en) | Oolitic hematite dressing method | |
| CN102489411A (en) | Flotation two-stage desiliconization method for high-silicon bauxite | |
| CN104258979A (en) | Feldspar quarry beneficiation process | |
| CN109174466A (en) | The inhibitor and its preparation method and application of calcic gangue in a kind of Scheelite Flotation | |
| CN104858066B (en) | A kind of direct reverse flotation technique for preparing high-purity iron concentrate | |
| CN109821660A (en) | A kind of processing of fluorspar ores separation method | |
| CN108672102A (en) | A kind of method for floating of phosphorus ore | |
| CN114247559A (en) | Tailing-free ore dressing method for lithium ore recovery | |
| CN109806966A (en) | Beneficiation method for comprehensively recovering strontium minerals from rare earth tailings | |
| CN101298066A (en) | Floatation process for removing quartz from giobertite | |
| CN106824551B (en) | A kind of combined modifier of flotation magnesium skarn type copper sulfide ore and its application | |
| CN102228870B (en) | Method for improving copper-molybdenum separating flotation index through combined use of chemical agents | |
| CN111468302A (en) | Beneficiation inhibitor and purification method of molybdenum rough concentrate | |
| CN101543830B (en) | Comprehensive utilization method for recycling manganese oxide slag | |
| CN103878069B (en) | Molybdenite separation method | |
| CN103789511A (en) | Fluorite spheres and preparation method thereof | |
| CN116441058A (en) | Method for reducing magnesium oxide content of concentrate in copper-nickel sulfide ore floatation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181024 Address after: 424206 fluorine chemical recycling industrial park, Bai Shi Du, Yizhang County, Chenzhou, Hunan Patentee after: YIZHANG HONGYUAN CHEMICALS CO., LTD. Address before: 424206 Hunan province Chenzhou city Yizhang County Li Tian Village boundary brand ridge Patentee before: Hunan Xinyuan Mining Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220518 Address after: 424202 fluorine chemical cycle Industrial Park, baishidu Town, Yizhang County, Chenzhou City, Hunan Province Patentee after: Hunan Zhonglan New Material Technology Co.,Ltd. Address before: 424206 fluorine chemical recycling industrial park, Bai Shi Du, Yizhang County, Chenzhou, Hunan Patentee before: YIZHANG HONGYUAN CHEMICALS Co.,Ltd. |
|
| TR01 | Transfer of patent right |