CN104475264B - Scheelite beneficiation method - Google Patents
Scheelite beneficiation method Download PDFInfo
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- CN104475264B CN104475264B CN201410689114.1A CN201410689114A CN104475264B CN 104475264 B CN104475264 B CN 104475264B CN 201410689114 A CN201410689114 A CN 201410689114A CN 104475264 B CN104475264 B CN 104475264B
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Abstract
Disclosed is a scheelite beneficiation method. The scheelite beneficiation method is characterized by sequentially including the following steps of scheelite rough concentration, scheelite rough concentrate normal temperature pretreatment and scheelite pretreatment concentrate heating concentration. As for scheelite rough concentration, according to scheelite ore feeding, one time of rough concentration, two to three times of fine concentrations and two to three times of scavenging are performed to obtain scheelite rough concentrate and scheelite rougher tailings; as for scheelite rough concentrate normal temperature pretreatment, according to scheelite rough concentrate, one time of rough concentration, two to three times of fine concentrations and two to three times of scavenging are performed to obtain scheelite pretreated concentrate and shceelite preheated tailings; as for scheelite pretreatment concentrate heating concentration, scheelite pretreated concentrate is concentrated to 60%-70% in concentration; heating is performed to reach 80 DEG C to 95 DEG C, and according to scheelite pretreated concentrate, one time of rough concentration, two to three times of fine concentrations and two to three times of scavenging are performed to obtain scheelite concentrate and scheelite heated tailings. According to the scheelite beneficiation method, concentrated and heated ore quantities can be reduced, good indicators in beneficiation of scheelite concentrate can be achieved, and the scheelite beneficiation method is applicable to flotation of scheelite in which the WO3 content is 0.06%-0.85%, the CaCO3 content is larger than or equal to 10% and CaF2 content is larger than or equal to 5%.
Description
Technical field
The present invention relates to a kind of beneficiation method, more particularly to a kind of beneficiation method of scheelite mineral.
Background technology
Scheelite generally with the calcic gangue mineral symbiosis such as calcite, fluorite, for containing CaCO3≥10%、CaF2>=5%
White tungsten-calcite-fluorite type tungsten ore, FLOTATION SEPARATION is more difficult.According to the difference of ore type, can by scheelite be divided into white tungsten-
Quartz（Or silicate mineral）Type and white tungsten-big class of calcite-fluorite type two.White tungsten-quartz（Or silicate mineral）Type tungsten ore
It is easier to reclaim, the white tungsten-calcite-more difficult recovery of fluorite type tungsten ore, mainly due to scheelite and the calcic gangue mineral of its symbiosis
Floatability it is close.The flotation of scheelite is roughly divided into roughly selects and selected two parts, roughly selects section mainly to improve white to greatest extent
The rate of recovery of tungsten ore is main target, and selected section of target is the high-grade tungsten concentrate of acquisition.Scheelite rougher concentration it is selected
Technique is mainly normal temperature method and heating method（Peter Nuo Fufa）.Normal temperature method is usually used in quartz mine, and the technological operation is convenient, white tungsten
Rough concentrate need not be concentrated, and for white tungsten-calcite-fluorite type tungsten ore adopts normal temperature concentration technique, obtained compared with high-grade
During tungsten concentrate, its tungsten recovery rate is relatively low, and when more low-grade tungsten concentrate is obtained, its tungsten recovery rate is higher.Heating method is generally used for
Calcium mineral content is high, the ore deposit that tungsten grade is relatively low, and the method can obtain higher tungsten concentrate grade and the rate of recovery, especially for tungsten
The weaker scheelite concentration of class matter homophase scheelite, iron content scheelite iso flotability.Heating method sorting result is more preferable, but heating method
Heating and complex process after needing white tungsten rough concentrate to concentrate.
The heating method of the dressing process of scheelite rougher concentration（Peter Nuo Fufa）It is primarily referred to as the concentrate to roughly selecting
Concentrated, concentration pulp density is 60 ~ 70%, subsequently adds a large amount of waterglass and regulator（Such as caustic soda, vulcanized sodium）And collecting
Agent, is stirred at high temperature, finally by slurry dilution flotation at normal temperatures.In this process, different mineral surfaces have
Different collecting agent film resolution speeds, makes mineral inhibition different, so as to reach the purpose of minerals separation.Due to heating floatation
Dressing process must be concentrated to the concentrate roughly selected, and need supporting installation concentrator.Because of scheelite and calcite, firefly
The floatability of the calcium minerals such as stone is close to, separate it is difficult, it is low to raw ore tungsten grade, containing calcite, fluorite is higher and day is processed
For the larger scheelite of amount so that the ore deposit amount that rough concentrate enters concentration is larger, cause the occupancy production site of concentrator compared with
Greatly, it is unfavorable for large-scale production；Due to needing to concentrate, heat, dilute, the process such as flotation, therefore heating method environment temperature it is high,
Environment is poor, cost is also high, and technics comparing is complicated, not easy to operate.
Normal temperature method is easy to operate, and white tungsten rough concentrate need not be concentrated, and for white tungsten-calcite-fluorite type tungsten ore is adopted
Normal temperature concentration technique, obtains relatively low compared with tungsten recovery rate during high-grade tungsten concentrate, particularly low to raw ore tungsten grade, containing square solution
The scheelite that stone, fluorite are higher and day output is larger, its white tungsten rough concentrate heating ore deposit amount is bigger, required concentrator
Floor space is larger, is unfavorable for large-scale production, and heating complex process is also unsuitable for large-scale application.Therefore, this
Bright is that one kind can reduce concentration and heat ore deposit amount, and white tungsten fine ore can be made to obtain the scheelite ore dressing side of preferable mineral processing index again
Method, improves resource utilization and is suitable to mine large-scale production.
The content of the invention
The purpose of the present invention is to propose to a kind of beneficiation method of scheelite, final white tungsten fine ore grade that the method is obtained and
The rate of recovery is higher, while reducing heating concentration concentration ore deposit amount, reduces the floor space of slurry concentrating equipment and heating ore deposit before heating
Amount.
The beneficiation method of the present invention is made up of successively following steps：
1）White tungsten is roughly selected：By white tungsten to ore deposit based on, 1. roughly select for 1 time：White tungsten is to the addition g ton of NaOH 0 ~ 500, carbon in ore deposit
The g ton of sour sodium 0 ~ 3500, the g ton of waterglass 200 ~ 3500 and the g ton of sulphation oleate soap 100 ~ 350, stir 10 ~ 15 minutes；
2. 2 ~ 3 times it is selected：The addition g ton of waterglass 100 ~ 500, stirs 2 ~ 5 minutes；3. scan for 2 ~ 3 times：Add sulphation oleate soap altogether
80 ~ 250 g tons, stir 5 ~ 10 minutes；Obtain white tungsten rough concentrate and white tungsten rougher tailings；
2）White tungsten rough concentrate normal temperature pretreatment：Based on white tungsten rough concentrate, 1. roughly select for 1 time：Add hydrogen-oxygen in white tungsten rough concentrate
Change the g ton of sodium 50 ~ 350, the g ton of waterglass 2000 ~ 5000 and the g ton of sulphation oleate soap 30 ~ 100, stir 30 ~ 60 minutes；
2. 2 ~ 3 times it is selected：Without medicament, stir 2 ~ 5 minutes；3. scan for 2 ~ 3 times：Without medicament, stir 5 ~ 10 minutes, obtain white
Tungsten pre-processes concentrate and white tungsten pretreatment mine tailing；
3）White tungsten pretreatment concentrate heating concentration：White tungsten pretreatment concentrate is concentrated into into concentration for 60 ~ 70%；It is heated up to 80 ~
95 DEG C, based on white tungsten pretreatment concentrate, 1. roughly select for 1 time：The addition g ton of waterglass 2000 ~ 8000,40 ~ 160 grams of NaOH/
Ton, the g ton of vulcanized sodium 200 ~ 800 and the g ton of sulphation oleate soap 90 ~ 350, are incubated 0.5 ~ 2 hour；2. 2 ~ 3 times it is selected：Do not add
Adding medicine, stirs 2 ~ 5 minutes；3. scan for 2 ~ 3 times：Without medicament, stir 5 ~ 10 minutes, obtain white tungsten fine ore and the heating of white tungsten
Mine tailing.The present invention is applied to WO3Content 0.06 ~ 0.85%, CaCO3≥10%、CaF2>=5% scheelite ore dressing.
The present invention is that white tungsten rough concentrate is carried out into the pretreatment of white tungsten normal temperature before heating concentration, its objective is the rate of recovery compared with
On the premise of height, the Beneficiation Feed Grade of heating concentration is improved, can both reduce the concentration ore deposit amount before heating and heating ore deposit amount, can be made again
White tungsten fine ore obtains higher grade and the rate of recovery.Simple to operate, cost of the invention is relatively low, can reduce the sedimentation face of concentration ore pulp
Product, that is, reduce concentrator floor space, is more beneficial for mine large-scale production.
Description of the drawings
Fig. 1 is the scheelite beneficiation flowsheet figure of the present invention.
Specific embodiment
By WO3Content 0.06 ~ 0.85%, CaCO3≥10%、CaF2>=5% scheelite first carries out white tungsten and roughly selects to obtain to ore deposit
White tungsten rough concentrate and white tungsten rougher tailings；The white tungsten normal temperature pretreatment of white tungsten rough concentrate Jing is selected to obtain white tungsten pretreatment concentrate and white
Tungsten pre-processes mine tailing；White tungsten pretreatment concentrate is concentrated into concentration for 60 ~ 70%, carries out 1 time and roughly selects, and 2 ~ 3 times selected and sweep for 2 ~ 3 times
Choosing, obtains white tungsten fine ore and white tungsten warming tailings.
Embodiment 1
Scheelite contains WO to ore deposit3 0.14%、CaCO3 25.13%、CaF2 7.8%, its scheelite is the white tungsten of tungsten class matter homophase
Ore deposit（Ca[(W,Mo)O4], scheelite minal contains WO3 42.15%）.
1）White tungsten is roughly selected：1. roughly select for 1 time：By the regime of agent of table 1 addition sodium carbonate, waterglass and sulphation oleate soap, stir
Mix 15 minutes；2. 2 times it is selected：Add waterglass by the regime of agent of table 1, stir 3 minutes；3. scan for 3 times：By the regime of agent of table 1
Addition sulphation oleate soap, stirs 10 minutes；Obtain white tungsten rough concentrate and white tungsten rougher tailings；
2）White tungsten rough concentrate normal temperature pretreatment：1. roughly select for 1 time：Add hydrogen-oxygen in white tungsten rough concentrate by the regime of agent of table 1
Change sodium, waterglass and sulphation oleate soap, stir 45 minutes；2. 3 times it is selected：Without medicament, stir 5 minutes；3. sweep for 3 times
Choosing：Without medicament, stir 8 minutes, white tungsten rough concentrate Jing normal temperature pretreatment obtains white tungsten pretreatment concentrate and the pretreatment of white tungsten
Mine tailing；
3）White tungsten pretreatment concentrate heating concentration：It is 60% that white tungsten pretreatment concentrate is concentrated into into concentration, is heated up to 85 DEG C,
By the regime of agent of table 1 addition waterglass, NaOH, vulcanized sodium and sulphation oleate soap, 1.0 hours are incubated；2. 3 times it is selected：
Without medicament, stir 5 minutes；3. scan for 3 times：Without medicament, stir 10 minutes, obtain final white tungsten fine ore grade WO3
32.13%th, the rate of recovery 59.73%.Concentration ore deposit volume production rate is 2.29 % before white tungsten pretreatment concentrate heating.
Embodiment 2
Scheelite contains WO to ore deposit3 0.062%、CaCO3 30.12%、CaF2 16.16%, its scheelite is tungsten class matter homophase
Scheelite（Ca[(W,Mo)O4], scheelite minal contains WO3 40.15%）.
1）White tungsten is roughly selected：1. roughly select for 1 time：By the regime of agent of table 1 addition NaOH, waterglass and sulphation oleate soap,
Stirring 10 minutes；2. 3 times it is selected：Add waterglass by the regime of agent of table 1, stir 5 minutes；3. scan for 2 times：By the medicament system of table 1
Degree addition sulphation oleate soap, stirs 5 minutes；Obtain white tungsten rough concentrate and white tungsten rougher tailings；
2）White tungsten rough concentrate normal temperature pretreatment：1. roughly select for 1 time：Add hydrogen-oxygen in white tungsten rough concentrate by the regime of agent of table 1
Change sodium, waterglass and sulphation oleate soap, stir 60 minutes；2. 3 times it is selected：Without medicament, stir 5 minutes；3. sweep for 2 times
Choosing：Without medicament, stir 5 minutes, white tungsten rough concentrate Jing normal temperature pretreatment obtains white tungsten pretreatment concentrate and the pretreatment of white tungsten
Mine tailing；
3）White tungsten pretreatment concentrate heating concentration：It is 65% that white tungsten pretreatment concentrate is concentrated into into concentration, is heated up to 90 DEG C,
By the regime of agent of table 1 addition waterglass, NaOH, vulcanized sodium and sulphation oleate soap, 1.5 hours are incubated；2. 3 times it is selected：
Without medicament, stir 5 minutes；3. scan for 2 times：Without medicament, stir 5 minutes, obtain final white tungsten fine ore grade WO3
33.96%th, the rate of recovery 37.80%.Concentration ore deposit volume production rate is 3.34% before white tungsten pretreatment concentrate heating.
Embodiment 3
Scheelite contains WO to ore deposit3 0.60%、CaCO3 17.26%、CaF2 30.30%, iron content in its scheelite minal, in vain
Tungsten ore minal contains WO3 73.05%。
1）White tungsten is roughly selected：1. roughly select for 1 time：By the regime of agent of table 1 addition sodium carbonate, NaOH, waterglass and sulphation
Oleate soap, stirs 12 minutes；2. 2 times it is selected：Add waterglass by the regime of agent of table 1, stir 2 minutes；3. scan for 3 times：By table
1 regime of agent adds sulphation oleate soap, stirs 10 minutes；Obtain white tungsten rough concentrate and white tungsten rougher tailings；
2）White tungsten rough concentrate normal temperature pretreatment：1. roughly select for 1 time：Add hydrogen-oxygen in white tungsten rough concentrate by the regime of agent of table 1
Change sodium, waterglass and sulphation oleate soap, stir 30 minutes；2. 2 times it is selected：Without medicament, stir 3 minutes；3. sweep for 3 times
Choosing：Without medicament, stir 10 minutes, white tungsten rough concentrate Jing normal temperature pretreatment obtains white tungsten pretreatment concentrate and the pretreatment of white tungsten
Mine tailing；
3）White tungsten pretreatment concentrate heating concentration：It is 70% that white tungsten pretreatment concentrate is concentrated into into concentration, is heated up to 80 DEG C,
By the regime of agent of table 1 addition waterglass, NaOH, vulcanized sodium and sulphation oleate soap, 0.5 hour is incubated；2. 2 times it is selected：
Without medicament, stir 2 minutes；3. scan for 3 times：Without medicament, stir 10 minutes, obtain final white tungsten fine ore grade WO3
68.73%th, the rate of recovery 83.85%.Concentration ore deposit volume production rate is 5.25% before white tungsten pretreatment concentrate heating.
The regime of agent of the scheelite ore dressing of the present invention of table 1
During the white tungsten of ﹡ is roughly selected：Selected 1 dosing, selected 2, selected 3 not dosing.
The result of the test (%) of the embodiment 1 ~ 3 of table 2
* concentration ore deposit amount/white tungsten mine-supplying quantity * 100 before concentration ore deposit volume production rate=heating before heating.
Claims (1)
1. a kind of beneficiation method of scheelite, is made up of successively following steps：White tungsten is roughly selected, white tungsten rough concentrate normal temperature pretreatment and
White tungsten pretreatment concentrate heating concentration, is characterized in that described white tungsten rough concentrate normal temperature pretreatment is based on white tungsten rough concentrate 1. 1
It is secondary to roughly select：Add the g ton of NaOH 50 ~ 350, the g ton of waterglass 2000 ~ 5000 and sulphation oleate soap in white tungsten rough concentrate
30 ~ 100 g tons, stir 30 ~ 60 minutes；2. 2 ~ 3 times it is selected：Without medicament, stir 2 ~ 5 minutes；3. scan for 2 ~ 3 times：Do not add
Adding medicine, stirs 5 ~ 10 minutes, obtains white tungsten pretreatment concentrate and white tungsten pretreatment mine tailing.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170335A (en) * | 2015-05-29 | 2015-12-23 | 洛阳栾川钼业集团股份有限公司 | Process for floatation of high-concentration scheelite rough concentrate |
| CN106733222A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of method for floating that Mo-bearing Iron Ores are removed from white tungsten fine ore |
| CN108722660B (en) * | 2018-05-18 | 2020-05-22 | 中国地质科学院郑州矿产综合利用研究所 | Beneficiation method of low-grade scheelite |
| CN108993778A (en) * | 2018-06-22 | 2018-12-14 | 昆明理工大学 | A kind of scheelite normal temperature flotation method |
| CN109465106B (en) * | 2018-12-27 | 2021-05-14 | 河南省岩石矿物测试中心 | Sorting method for tungsten-molybdenum ore |
| CN110479494B (en) * | 2019-08-19 | 2021-04-20 | 洛阳豫鹭矿业有限责任公司 | Concentration method for improving flotation concentrate grade of low-grade scheelite |
| CN111495600A (en) * | 2020-04-14 | 2020-08-07 | 湖南柿竹园有色金属有限责任公司 | Scheelite flotation method |
| CN112275444B (en) * | 2020-10-09 | 2023-03-21 | 湖南瑶岗仙矿业有限责任公司 | Beneficiation process suitable for scheelite |
| CN112517224A (en) * | 2020-10-27 | 2021-03-19 | 西北矿冶研究院 | Beneficiation method for low-grade tungsten-molybdenum ore |
| CN114011578A (en) * | 2021-12-14 | 2022-02-08 | 湖南柿竹园有色金属有限责任公司 | Method for reducing sulfur content in scheelite concentrate |
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| CN101417267A (en) * | 2008-12-05 | 2009-04-29 | 长沙有色冶金设计研究院 | Low-grade scheelite in molybdenum floatation tailings |
| CN101579653A (en) * | 2009-06-10 | 2009-11-18 | 广州有色金属研究院 | Benefication method for concentrating fine tungsten ore in tailings by warming scheelite |
| CN101648157B (en) * | 2009-08-25 | 2013-05-01 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101757984B (en) * | 2010-02-07 | 2013-11-06 | 紫金矿业集团股份有限公司 | Beneficiation reagent and method for separating scheelite from complex tungsten ore |
| CN101869876B (en) * | 2010-05-24 | 2012-10-24 | 广州有色金属研究院 | Ore dressing method of low-grade scheelite |
| CN102441482A (en) * | 2011-09-30 | 2012-05-09 | 广州有色金属研究院 | Mineral separation method for scheelite containing rich pyrrhotite |
| CN102658241A (en) * | 2012-04-23 | 2012-09-12 | 洛阳栾川钼业集团股份有限公司 | Flotation process adopting flotation column to regrading scheelite instead of flotation machine |
| CN102909130B (en) * | 2012-11-14 | 2016-05-18 | 中湘钨业股份有限公司 | A kind of white tungsten beneficiation method |
| CN103934113B (en) * | 2014-04-08 | 2017-04-12 | 湖南有色科技发展有限公司 | Beneficiation method for tungsten polymetallic ore |
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Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Address before: 510651 Changxin Road, Tianhe District, Guangzhou, Guangzhou, Guangdong Patentee before: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION |
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