CN103521344A - Method for separating and purifying low-grade fluorite barite paragenetic ores - Google Patents
Method for separating and purifying low-grade fluorite barite paragenetic ores Download PDFInfo
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- CN103521344A CN103521344A CN201310505493.XA CN201310505493A CN103521344A CN 103521344 A CN103521344 A CN 103521344A CN 201310505493 A CN201310505493 A CN 201310505493A CN 103521344 A CN103521344 A CN 103521344A
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Abstract
A method for separating and purifying low-grade fluorite barite paragenetic ores includes the following steps that the first step, the fluorite barite associated raw ores are manually picked in a mine, starch and NaOH are added into a just boiled deionized water according to the weight ratio of 6:1 at the same time, stirring is performed for 20 minutes, when the starch is completely dissolved, a solution with certain concentration is then obtained in a diluting mode, and the code name of the solution is 'MDK'; then, the NAS with certain concentration and the MDK are evenly mixed according to the ratio of 800:0.6, so that a modifier is prepared, and the code name is 'ADF'; with TF2-8 as a collecting agent and the 'ADF' as the modifier, fluorites with a grade of 95.61% can be obtained through one-time roughing under the condition that pH=8.8; after the fluorites are obtained, tailings are reselected by the adoption of a spiral chute, barite fine powder is further recycled, regrinding and reselecting are performed on fluorite barite intergrown body middlings, the remaining final tailings are subject to dry stacking processing after undergoing sedimentation and filter pressing, and the tailings after the dry stacking processing are used for making bricks.
Description
Technical field
The present invention relates to a kind of floatation separating method for mineral, relate in particular to a kind of low-grade fluorite-barite mineral intergrowth process for separation and purification.
Background technology
Fluorite (Fluorite), claims again fluorite, is a kind of mineral, and its main component is calcirm-fluoride (CaF2), impure more, and Ca is often substituted by rare earth elements such as Y and Ce, contains in addition a small amount of Fe2O3, SiO2 and micro-Cl, O3, He etc.The fluorite of occurring in nature is aobvious chromatic colour often, and hardness ratio pocket knife is low.It can for the preparation of hydrogen fluoride: CaF2+H2SO4=CaSO4+2HF ↑; In artificial fluorite technology, not yet before maturation, be one of material of manufacturing by camera lens optical glass used.
Fluorite is saltiness diluent, why gains the name, and be because it can send the fluorescence as firefly under ultraviolet ray or cathode-ray irradiation, but when fluorite contains some rare earth elements, it will phosphoresce.That is to say, after leaving ultraviolet ray or cathode-ray irradiation, fluorite still can continue luminous longer a period of time.The phosphorescent fluorite output of this energy proportion is little.In fact, most legendary luminous pearls are all fluorite materials, because the crystal of fluorite is generally larger, so fluorite legendary luminous pearl can be found unusual large volume.The hardness of fluorite is lower, and property is crisp, in general should be noted that and avoids sharp impacts, avoids contacting acidic materials simultaneously.
Domestic and international existing fluorite and barite recovery method is generally to adopt waterglass as the inhibitor of silicoide, and oleic acid or enuatrol reclaim as the collecting agent of fluorite mineral; The barite gravitational separation equipments that adopt reclaims more, also has the method for floating of employing to reclaim.
Summary of the invention
The object of the invention is in order to overcome deficiency of the prior art, thereby a kind of low grade fluorite and barite mineral intergrowth process for separation and purification is provided.
A mineral intergrowth process for separation and purification, comprises the steps:
Step 1: fluorite and barite association raw ore is carried out to craft select in mine, select the metallurgical fluorite of part; Remaining association ore is broken into the specification particle below 5mm through jaw formula hammer two-stage, through jigging machine sorting, strives 25% barite elimination factor; Residue ore is levigate to i.e. 100 orders of 0.15mm through grinding machine, percent of pass 85% left and right, and 0.074mm i.e. 200 orders, percent of pass 40% left and right, through four selected high-grade barite fine powders, flotation tail slurry is done fluorite again, through seven selected high-quality acid level fluorite fine powders that obtain;
Step 2: join by the part by weight of 6:1 in the deionized water of just having boiled with starch and NaOH simultaneously, stir 20min, when starch dissolves completely, then be diluted to certain density solution, code name is " MDK ";
Step 3: certain density NAS and MDK are evenly mixed in the ratio of 800: 0.6, make adjusting agent, code name is " ADF ";
Step 4: with TF
2-8for collecting agent, use " ADF " to adjust agent, under pH=8.8 condition, one roughing just can obtain the fluorite of 95.61% grade.
Step 5: mine tailing after fluorite is adopted to spiral chute gravity treatment again, further reclaim barite fine powder, fluorite and barite intergrowth chats carries out regrinding and reconcentration, residue true tailings is made dry heap through sedimentation press filtration and is processed, and the tailings that utilizes dry heap to process carries out brickmaking.
Adopt the beneficial effect of technique scheme to be:
The present invention is according to the feature of this ore properties, adopts heavy-floating combined process flow, and hybrid separation flotation is that froth pulp carries out the separated of barite and fluorite again after the two bulk flotation, and bulk flotation key is the reagent removal problem of froth pulp after bulk flotation.During bulk flotation, can obtain good index, in bulk concentrate, the bar rate of recovery can reach more than 95%, and fluorite is more than 97%.
The present invention is through the system test research to floatation process and medicament, rational technological process and regime of agent have been formulated, the particularly modification of inhibitor and composite, successfully solved the separation problem of fluorite and barite, barite content is reached to 40% fluorite and barite intergrowth mineral and guaranteeing that recovery rate in ore-dressing 85% foundation floating selects secondary acid level fluorite fine powder, make production substantially reach stable, seconds rate reaches more than 95%.
The specific embodiment
Below the present invention is described in further detail:
A mineral intergrowth process for separation and purification, comprises the steps:
Step 1: fluorite and barite association raw ore is carried out to craft select in mine, select the metallurgical fluorite of part; Remaining association ore is broken into the specification particle below 5mm through jaw formula hammer two-stage, through jigging machine sorting, strives 25% barite elimination factor; Residue ore is levigate to i.e. 100 orders of 0.15mm through grinding machine, percent of pass 85% left and right, and 0.074mm i.e. 200 orders, percent of pass 40% left and right, through four selected high-grade barite fine powders, flotation tail slurry is done fluorite again, through seven selected high-quality acid level fluorite fine powders that obtain;
Step 2: join by the part by weight of 6:1 in the deionized water of just having boiled with starch and NaOH simultaneously, stir 20min, when starch dissolves completely, then be diluted to certain density solution, code name is " MDK ";
Step 3: certain density NAS and MDK are evenly mixed in the ratio of 800: 0.6, make adjusting agent, code name is " ADF ";
Step 4: with TF
2-8for collecting agent, use " ADF " to adjust agent, under pH=8.8 condition, one roughing just can obtain the fluorite of 95.61% grade.
Step 5: mine tailing after fluorite is adopted to spiral chute gravity treatment again, further reclaim barite fine powder, fluorite and barite intergrowth chats carries out regrinding and reconcentration, residue true tailings is made dry heap through sedimentation press filtration and is processed, and the tailings that utilizes dry heap to process carries out brickmaking.
The present invention selects suitable flotation mode, formulates flotation flowsheet scheme:
According to the feature of this ore properties, adopt heavy-floating combined process flow, hybrid separation flotation is that froth pulp carries out the separated of barite and fluorite again after the two bulk flotation, bulk flotation key is the reagent removal problem of froth pulp after bulk flotation.During bulk flotation, can obtain good index, in bulk concentrate, the bar rate of recovery can reach more than 95%, and fluorite is more than 97%.
The composite heavy floating combined separation of inhibitor of the present invention
Through the system test research to floatation process and medicament, rational technological process and regime of agent have been formulated, the particularly modification of inhibitor and composite, successfully solved the separation problem of fluorite and barite, barite content is reached to 40% fluorite and barite intergrowth mineral and guaranteeing that recovery rate in ore-dressing 85% foundation floating selects secondary acid level fluorite fine powder, make production substantially reach stable, seconds rate reaches more than 95%.
Fluorite and barite association raw ore carries out craft to be selected in mine, selects the metallurgical fluorite of part; Remaining association ore is broken into the specification particle below 5mm through jaw formula hammer two-stage, through jigging machine sorting, strives 25% barite elimination factor; Residue ore is levigate to 0.15mm(100 order through grinding machine) percent of pass 85% left and right, 0.074mm(200 order) percent of pass 40% left and right, through four selected high-grade barite fine powders that obtain, flotation tail slurry is done fluorite again, through seven selected high-quality acid level fluorite fine powders (more than secondary) that obtain.After sorting fluorite, mine tailing adopts spiral chute gravity treatment again, further reclaim barite fine powder, fluorite and barite intergrowth chats carries out regrinding and reconcentration, residue true tailings is made dry heap through sedimentation press filtration and is processed, by building one of brickmaking production line, the tailings that utilizes dry heap to process carries out brickmaking, realizes part utilization of waste as resource.
The modification of inhibitor and compounded technology
Starch is a kind of polymer, can be used as bar inhibitor.By dried starch and NaOH (Gu) by the part by weight of 6: 1, join in the deionized water of just having boiled simultaneously, stir 20min, when starch dissolves completely, then be diluted to certain density solution.The causticity starch of making is like this represented with code name " MDK ".
MDK has very strong inhibitory action to barite, as consumption W>1.0 * 10
-6time, barite Floatation Rate
Below 5%.But HDF also has certain inhibitory action to fluorite, if will make barite more suppressed, fluorite also can be subject to inhibition to a certain extent.Therefore need a kind of adjusting agent adjust common inhibitor NAS to bar inhibitory action a little less than, but selectively strong, and the inhibitory action of inhibitor MDK is strong, but poor selectivity.In NAS, add a small amount of MDK, mix and be used as the fluorite adjusting agent separated with Barite flotation, can make up and use separately separately the defect existing.Therefore, this project is evenly mixed certain density NAS and MDK in the ratio of 800: 0.6, as a kind of novel adjusting agent, with code name " ADF ", represents.
Many experiments shows, is not adding under the prerequisite of any adjusting agent collecting agent TF
2-8fluorite is had to very strong collecting effect, bar collecting effect also strong test is shown simultaneously.If with TF
2-8for collecting agent, use NEW TYPE OF COMPOSITE medicament ADF to adjust agent, under pH=8.8 condition, through one roughing, can obtain fluorite grade 95.61%, the desired result of the rate of recovery 98.33%
A mineral intergrowth process for separation and purification, is characterized in that: it comprises the steps:
Step 1: fluorite and barite association raw ore is carried out to craft select in mine, select the metallurgical fluorite of part; Remaining association ore is broken into the specification particle below 5mm through jaw formula hammer two-stage, through jigging machine sorting, strives 25% barite elimination factor; Residue ore is levigate to i.e. 100 orders of 0.15mm through grinding machine, percent of pass 85% left and right, and 0.074mm i.e. 200 orders, percent of pass 40% left and right, through four selected high-grade barite fine powders, flotation tail slurry is done fluorite again, through seven selected high-quality acid level fluorite fine powders that obtain;
Step 2: join by the part by weight of 6:1 in the deionized water of just having boiled with starch and NaOH simultaneously, stir 20min, when starch dissolves completely, then be diluted to certain density solution, code name is " MDK ";
Step 3: certain density NAS and MDK are evenly mixed in the ratio of 800: 0.6, make adjusting agent, code name is " ADF ";
Step 4: with TF
2-8for collecting agent, use " ADF " to adjust agent, under pH=8.8 condition, one roughing just can obtain the fluorite of 95.61% grade.
Step 5: mine tailing after fluorite is adopted to spiral chute gravity treatment again, further reclaim barite fine powder, fluorite and barite intergrowth chats carries out regrinding and reconcentration, residue true tailings is made dry heap through sedimentation press filtration and is processed, and the tailings that utilizes dry heap to process carries out brickmaking.
Claims (1)
1. a low grade fluorite and barite mineral intergrowth process for separation and purification, is characterized in that: it comprises the steps:
Step 1: fluorite and barite association raw ore is carried out to craft select in mine, select the metallurgical fluorite of part; Remaining association ore is broken into the specification particle below 5mm through jaw formula hammer two-stage, through jigging machine sorting, strives 25% barite elimination factor; Residue ore is levigate to i.e. 100 orders of 0.15mm through grinding machine, percent of pass 85% left and right, and 0.074mm i.e. 200 orders, percent of pass 40% left and right, through four selected high-grade barite fine powders, flotation tail slurry is done fluorite again, through seven selected high-quality acid level fluorite fine powders that obtain;
Step 2: join by the part by weight of 6:1 in the deionized water of just having boiled with starch and NaOH simultaneously, stir 20min, when starch dissolves completely, then be diluted to certain density solution, code name is " MDK ";
Step 3: certain density NAS and MDK are evenly mixed in the ratio of 800: 0.6, make adjusting agent, code name is " ADF ";
Step 4: with TF
2-8for collecting agent, use " ADF " to adjust agent, under pH=8.8 condition, one roughing just can obtain the fluorite of 95.61% grade.
Step 5: mine tailing after fluorite is adopted to spiral chute gravity treatment again, further reclaim barite fine powder, fluorite and barite intergrowth chats carries out regrinding and reconcentration, residue true tailings is made dry heap through sedimentation press filtration and is processed, and the tailings that utilizes dry heap to process carries out brickmaking.
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Cited By (10)
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CN104801417A (en) * | 2014-01-23 | 2015-07-29 | 陈瑞文 | Low-grade fluorite ore beneficiation process route assay method and process method |
CN104826738A (en) * | 2015-04-24 | 2015-08-12 | 中蓝连海设计研究院 | Staged floatation method for separating low-grade calcite-barite-fluorite type ore |
CN106269218A (en) * | 2016-11-02 | 2017-01-04 | 广西大学 | A kind of method reclaiming barite from fluorite mine tailing |
CN108176517A (en) * | 2017-12-28 | 2018-06-19 | 烟台东方冶金设计研究院有限公司 | A kind of ore-dressing technique of barite ore |
CN108940564A (en) * | 2018-06-15 | 2018-12-07 | 酒泉钢铁(集团)有限责任公司 | A kind of low-grade barite classification sorting process of fine fraction |
CN109261372A (en) * | 2018-08-13 | 2019-01-25 | 昆明理工大学 | A kind of method of substep recycling fluorite and barite |
CN110026286A (en) * | 2019-01-07 | 2019-07-19 | 金石资源集团股份有限公司 | A kind of fluorite and barite class mine gravity separation technique |
CN110385197A (en) * | 2019-08-02 | 2019-10-29 | 浙江紫晶矿业有限公司 | A kind of the gravity separation system and technique of barite fluorite associated minerals |
CN111298956A (en) * | 2020-03-10 | 2020-06-19 | 中国地质科学院矿产综合利用研究所 | Separation method of low-grade fluorite barite paragenic ore rich in calcite |
CN115254440A (en) * | 2022-08-09 | 2022-11-01 | 东北大学 | Application of curdlan as inhibitor in fluorite ore flotation and application method thereof |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104801417A (en) * | 2014-01-23 | 2015-07-29 | 陈瑞文 | Low-grade fluorite ore beneficiation process route assay method and process method |
CN104826738A (en) * | 2015-04-24 | 2015-08-12 | 中蓝连海设计研究院 | Staged floatation method for separating low-grade calcite-barite-fluorite type ore |
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 |
CN106269218A (en) * | 2016-11-02 | 2017-01-04 | 广西大学 | A kind of method reclaiming barite from fluorite mine tailing |
CN108176517B (en) * | 2017-12-28 | 2019-12-27 | 烟台金鹏矿业机械有限公司 | Ore dressing process for barite ore |
CN108176517A (en) * | 2017-12-28 | 2018-06-19 | 烟台东方冶金设计研究院有限公司 | A kind of ore-dressing technique of barite ore |
CN108940564A (en) * | 2018-06-15 | 2018-12-07 | 酒泉钢铁(集团)有限责任公司 | A kind of low-grade barite classification sorting process of fine fraction |
CN109261372A (en) * | 2018-08-13 | 2019-01-25 | 昆明理工大学 | A kind of method of substep recycling fluorite and barite |
CN110026286A (en) * | 2019-01-07 | 2019-07-19 | 金石资源集团股份有限公司 | A kind of fluorite and barite class mine gravity separation technique |
CN110385197A (en) * | 2019-08-02 | 2019-10-29 | 浙江紫晶矿业有限公司 | A kind of the gravity separation system and technique of barite fluorite associated minerals |
CN110385197B (en) * | 2019-08-02 | 2021-08-06 | 浙江紫晶矿业有限公司 | Gravity separation system and process for barite fluorite associated ore |
CN111298956A (en) * | 2020-03-10 | 2020-06-19 | 中国地质科学院矿产综合利用研究所 | Separation method of low-grade fluorite barite paragenic ore rich in calcite |
CN111298956B (en) * | 2020-03-10 | 2020-11-24 | 中国地质科学院矿产综合利用研究所 | Separation method of low-grade fluorite barite paragenic ore rich in calcite |
WO2021179814A1 (en) * | 2020-03-10 | 2021-09-16 | 中国地质科学院矿产综合利用研究所 | Separation method for low-grade fluorite barite paragenic ore rich in calcite |
US20220203377A1 (en) * | 2020-03-10 | 2022-06-30 | Institute of Multipurpose Utilization of Mineral Resources, CAGS | Method for Separating Calcite-rich Low-grade Fluorite Barite Paragenic Ore |
US11478801B2 (en) * | 2020-03-10 | 2022-10-25 | Institute of Multipurpose Utilization of Mineral Resources, CAGS | Method for separating calcite-rich low-grade fluorite barite paragenic ore |
CN115254440A (en) * | 2022-08-09 | 2022-11-01 | 东北大学 | Application of curdlan as inhibitor in fluorite ore flotation and application method thereof |
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