CN103521358A - Method for preprocessing copper and molybdenum bulk concentrates before separation flotation - Google Patents
Method for preprocessing copper and molybdenum bulk concentrates before separation flotation Download PDFInfo
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- CN103521358A CN103521358A CN201310517039.6A CN201310517039A CN103521358A CN 103521358 A CN103521358 A CN 103521358A CN 201310517039 A CN201310517039 A CN 201310517039A CN 103521358 A CN103521358 A CN 103521358A
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- copper
- molybdenum
- bulk concentrates
- molybdenum bulk
- thickener
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Abstract
The invention discloses a method for preprocessing copper and molybdenum bulk concentrates before separation flotation. The method includes stirring the copper and molybdenum bulk concentrates by the aid of a first stirring tank; conveying the stirred copper and molybdenum bulk concentrates to a thickener by a first slurry pump via pipelines; feeding bottom flow of the thickener into a ceramic filter by a second slurry pump via pipelines and filtering the bottom flow of the thickener; conveying filter cakes with the moisture contents lower than 10% into a second stirring tank via a conveyor belt; stirring the filter cakes with water just added into the second stirring tank and regulating pulp by the filter cakes and the water; delivering the regulated pulp by a third slurry pump to be used as a fed material for a copper and molybdenum separation flotation process. The copper and molybdenum bulk concentrates are obtained by flotation. The method has the advantages that the first stirring tank can realize a simple mechanical scrubbing effect, the copper and molybdenum bulk concentrates sequentially flow through the thickener and the ceramic filter, the water contents of the filter cakes for the bulk concentrates are lower than 10%, and pulp and most of reagents and Cu<2+> on the surfaces of minerals can be removed, so that the floatability difference among the minerals is widened, and excellent conditions for separating copper from molybdenum are created.
Description
Technical field
The invention belongs to technical field of mineral processing, particularly a kind of separated pretreated method of bulk concentrate floatation, is the preprocess method before a kind of copper molybdenum bulk concentrate separating flotation specifically.
Background technology
The separation of copper molybdenum bulk concentrate is a universally acknowledged ore dressing difficult problem, and when in bulk concentrate, copper exists with a large amount of secondary copper ores, the separation of copper molybdenum is more difficult.This is mainly because secondary copper ores dissolves a large amount of Cu in ore pulp
2+, Cu
2+can activate other mineral and consume floating agent, causing floatability difference between mineral to reduce.Therefore, be necessary, by carrying out pretreatment before the separation of copper molybdenum bulk concentrate, to remove to greatest extent the Cu in ore pulp
2+, residual collecting agent and the collecting agent of copper mineral adsorption, reduce the floatability of copper mineral when separating flotation, for the separation of copper molybdenum provides condition.
The separated pretreated method of copper molybdenum bulk concentrate mainly contains following several: mechanical concentrator is concentrated or tilting board concentrating box is concentrated; Bulk concentrate is regrinded or is added active carbon and regrinds; Heat treatment, Steam Heating ore pulp or the roasting of bulk concentrate filter cake, desorb copper mine surface collecting agent; Oxidizer treatment, adds various strong oxidizers as chlorine, hydrogen peroxide and ozone, makes the collecting agent oxidation Decomposition on copper mineral surface maybe can make copper mineral surface oxidation in alkaline ore pulp form hydrophilic oxide adsorption layer.
In thickening technique, underflow is too much containing original liquid, and reagent removal texts is not remarkable.Regrind is by between ore particle, between ore particle and milling medium, mechanical friction removes mineral surfaces medicament, active carbon Dynamic Adsorption also has certain reagent removal effect, but regrind, worsened granularmetric composition, increased fine particles content in concentrate, can cause the concentrator load of separated follow-up concentrate dewatering operation to increase the weight of, even dense overflow is run mixed, and regrinds and also increased energy consumption.Heat treatment operating cost is very big, and operation requirements is higher.Oxidation processes has increased equipment cost, and performance accuracy requires high, also, likely because pipeline leaks gas or operate miss causes air pollution, worsens production environment.And in above method, secondary copper ores dissolves the Cu producing
2+mostly be even still trapped in bulk concentrate, between mineral, floatability difference is not thoroughly improved.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the preprocess method before a kind of copper molybdenum bulk concentrate separating flotation, the method can have been removed medicament and the Cu of copper molybdenum bulk concentrate ore pulp and the mineral surfaces overwhelming majority
2+thereby, widen floatability difference between mineral, for the separation of copper molybdenum creates good conditions, there is the features such as energy consumption, simple in structure, easy operating, technological process are stable of saving simultaneously.
The present invention's method is: the copper molybdenum bulk concentrate that flotation is obtained stirs through the first tank diameter, then by the first slag stock pump, by pipeline, be delivered to concentrator, thickener underflow feeds ceramic filter through the second slag stock pump by pipeline and filters, filter cake contained humidity is less than 10%, filter cake is delivered in the second tank diameter by conveyer belt, size mixing with the water stirring from newly adding, finally by the 3rd slag stock pump, carry the feed as copper molybdenum separating flotation flow process.
Beneficial effect of the present invention:
The first tank diameter has simple mechanical scrub effect, and copper molybdenum bulk concentrate passes through concentrator and ceramic filter successively, makes bulk concentrate filter cake moisture be less than 10%, has removed medicament and the Cu of ore pulp and the mineral surfaces overwhelming majority
2+thereby, widen floatability difference between mineral, for good condition has been created in the separation of copper molybdenum.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
The specific embodiment
Refer to shown in Fig. 1, the present invention is that the copper molybdenum bulk concentrate that flotation is obtained stirs through the first tank diameter 1, then by the first slag stock pump 2, by pipeline, be delivered to concentrator 3, concentrator 3 underflows feed ceramic filter 5 through the second slag stock pump 4 by pipeline and filter, filter cake contained humidity is less than 10%, filter cake is delivered in the second tank diameter 7 by conveyer belt 6, sizes mixing with the water stirring from newly adding, and the feed of finally being carried as copper molybdenum separating flotation flow process by the 3rd slag stock pump 8.
The first tank diameter 1 in the present invention has simple mechanical scrub effect, and copper molybdenum bulk concentrate passes through concentrator 3 and ceramic filter 5 successively, makes bulk concentrate filter cake moisture be less than 10%, has removed medicament and the Cu of ore pulp and the mineral surfaces overwhelming majority
2+thereby, widen floatability difference between mineral, for good condition has been created in the separation of copper molybdenum.
Claims (1)
1. the preprocess method before a copper molybdenum bulk concentrate separating flotation, the method is that the copper molybdenum bulk concentrate that flotation is obtained stirs through the first tank diameter, then by the first slag stock pump, by pipeline, be delivered to concentrator, thickener underflow feeds ceramic filter through the second slag stock pump by pipeline and filters, filter cake contained humidity is less than 10%, filter cake is delivered in the second tank diameter by conveyer belt, size mixing with the water stirring from newly adding, finally by the 3rd slag stock pump, carry the feed as copper molybdenum separating flotation flow process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517039.6A CN103521358A (en) | 2013-10-28 | 2013-10-28 | Method for preprocessing copper and molybdenum bulk concentrates before separation flotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517039.6A CN103521358A (en) | 2013-10-28 | 2013-10-28 | Method for preprocessing copper and molybdenum bulk concentrates before separation flotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103521358A true CN103521358A (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517039.6A Pending CN103521358A (en) | 2013-10-28 | 2013-10-28 | Method for preprocessing copper and molybdenum bulk concentrates before separation flotation |
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| CN (1) | CN103521358A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391319A (en) * | 2016-11-27 | 2017-02-15 | 长春黄金研究院 | Method for improving grade of copper-molybdenum separated molybdenum concentrate of skarn copper-molybdenum ore |
| CN111873246A (en) * | 2020-07-21 | 2020-11-03 | 长安大学 | Flotation separation method for multi-component waste plastic |
| CN113019708A (en) * | 2021-04-19 | 2021-06-25 | 郑州大学 | Oxidation flotation separation process for copper-molybdenum bulk concentrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080202988A1 (en) * | 2007-01-24 | 2008-08-28 | Seminis Vegetable Seeds, Inc. | Liquid density separation system |
| CN102228870A (en) * | 2011-05-26 | 2011-11-02 | 山东梁邹矿业集团有限公司 | Method for improving copper-molybdenum separating flotation index through combined use of chemical agents |
| CN102744150A (en) * | 2012-06-29 | 2012-10-24 | 广州有色金属研究院 | Beneficiation method for lindgrenite |
-
2013
- 2013-10-28 CN CN201310517039.6A patent/CN103521358A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080202988A1 (en) * | 2007-01-24 | 2008-08-28 | Seminis Vegetable Seeds, Inc. | Liquid density separation system |
| CN102228870A (en) * | 2011-05-26 | 2011-11-02 | 山东梁邹矿业集团有限公司 | Method for improving copper-molybdenum separating flotation index through combined use of chemical agents |
| CN102744150A (en) * | 2012-06-29 | 2012-10-24 | 广州有色金属研究院 | Beneficiation method for lindgrenite |
Non-Patent Citations (1)
| Title |
|---|
| 杨保东等: ""铜钼混合精矿分离浮选工业试验研究"", 《黄金》, vol. 33, no. 8, 31 December 2012 (2012-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391319A (en) * | 2016-11-27 | 2017-02-15 | 长春黄金研究院 | Method for improving grade of copper-molybdenum separated molybdenum concentrate of skarn copper-molybdenum ore |
| CN111873246A (en) * | 2020-07-21 | 2020-11-03 | 长安大学 | Flotation separation method for multi-component waste plastic |
| CN113019708A (en) * | 2021-04-19 | 2021-06-25 | 郑州大学 | Oxidation flotation separation process for copper-molybdenum bulk concentrate |
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Application publication date: 20140122 |