CN109806981A - A kind of beneficiation method of copper-molybdenum - Google Patents
A kind of beneficiation method of copper-molybdenum Download PDFInfo
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- CN109806981A CN109806981A CN201910146227.XA CN201910146227A CN109806981A CN 109806981 A CN109806981 A CN 109806981A CN 201910146227 A CN201910146227 A CN 201910146227A CN 109806981 A CN109806981 A CN 109806981A
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Abstract
The invention discloses a kind of beneficiation methods of copper-molybdenum, carry out ore grinding processing to copper-molybdenum raw ore first；Any regulator is not added to ore pulp in ore grinding treatment process, ore pulp is made to keep natural ph, bulk flotation operation is carried out under natural ph；Ore pulp is being carried out to sequentially add copper-molybdenum special efficacy collecting agent thiophosphate, butyl ether alcohol, sulphur ammoniacum etc., foaming agent in rougher process into ore pulp, copper-molybdenum bulk flotation roughing is being carried out, scans to obtain tailing twice；PH regulator and molybdenum ore object activator are added in carrying out mixing refining process, are carried out triple cleaning and are obtained required copper-molybdenum bulk concentrate.The quality and the rate of recovery of copper-molybdenum bulk concentrate can be significantly improved under the premise of guaranteeing copper grade using this method, especially molybdenum mineral recovery rate is greatly improved.
Description
Technical field
The present invention relates to technical field of beneficiation more particularly to a kind of beneficiation methods of copper-molybdenum.
Background technique
Porphyry copper mine is the main source of world's copper, Mo resource, and especially for molybdenum, the nearly half of total amount derives from copper
Association is recycled in molybdenum ore.Low, thin, complicated components of disseminated grain size of the most porphyry copper mine stone grade in China etc., increase back
Difficulty is received, part low-grade copper Mo resource fails to obtain preferable synthetical recovery, causes the valuable wasting of resources.
Porphyry Copper ore is often associated with molybdenum, and copper mineral is mainly chalcopyrite, if molybdenum ore owner's molybdenite, in addition to copper-molybdenum
Except mineral, also containing some other easy floating sulfide minerals, such as pyrite.Prior art processing copper-molybdenum is adopted mostly
With floatation, the method for floating of copper-molybdenum generally has diffeential floatation, Part-bulk flotation and bulk flotation-the techniques stream such as to separate again
Journey usually needs to add regulator (mainly lime) in grinding process and adjusts slurry pH to 9 in copper-molybdenum floatation process
~10, then continue to add regulator in selected operation, in order to obtain more high-grade copper grade, pH needs are adjusted to when selected
10 is even higher, but when pH value is excessively high, molybdenum recovery is significantly reduced, therefore how to mention under the premise of guaranteeing copper grade
High molybdenum recovery is a technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of beneficiation methods of copper-molybdenum, can be before guaranteeing copper grade using this method
The quality and the rate of recovery for significantly improving copper-molybdenum bulk concentrate are put, especially molybdenum mineral recovery rate is greatly improved.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of beneficiation method of copper-molybdenum, which comprises
Step 1 carries out ore grinding processing to copper-molybdenum raw ore；
Step 2 does not add any regulator to ore pulp in ore grinding treatment process, so that ore pulp is kept natural ph, certainly
Bulk flotation operation is carried out under right pH value；
Step 3 is carrying out ore pulp to sequentially add copper-molybdenum collecting agent, foaming agent into ore pulp in rougher process, carries out
Copper-molybdenum bulk flotation roughing scans to obtain tailing twice；
Step 4 adds pH regulator and molybdenum ore object activator in carrying out mixing refining process, carries out triple cleaning and obtains
To required copper-molybdenum bulk concentrate.
In step 3, the collecting agent being added is the organic medicament of esters, including thiophosphate, butyl ether alcohol or sulphur ammonia
Rouge, total dosage are 20~50g/tRaw ore。
In step 3, the foaming agent being added is terpenic oil, and dosage is 5~30g/tRaw ore。
In step 4, the pH regulator being added is lime, and dosage is 10~50g/tRaw ore。
In step 4, the molybdenum ore object activator being added includes one or both of waterglass, acidified sodium silicate；
And the dosage for the molybdenum ore object activator being added is 100~500g/tRaw ore。
It as seen from the above technical solution provided by the invention, can be in the premise for guaranteeing copper grade using the above method
Under significantly improve the quality and the rate of recovery of copper-molybdenum bulk concentrate, especially molybdenum mineral recovery rate is greatly improved, and operates letter
Single, controllability is strong, also relatively strong to ore adaptability.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the beneficiation method flow diagram of copper-molybdenum provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing, is implemented as shown in Figure 1 for the present invention
The beneficiation method flow diagram for the copper-molybdenum that example provides, which comprises
Step 1 carries out ore grinding processing to copper-molybdenum raw ore；
Step 2 does not add any regulator to ore pulp in ore grinding treatment process, so that ore pulp is kept natural ph, certainly
Bulk flotation operation is carried out under right pH value；
Step 3 is carrying out ore pulp to sequentially add copper-molybdenum collecting agent, foaming agent into ore pulp in rougher process, carries out
Copper-molybdenum bulk flotation roughing scans to obtain tailing twice；
In this step, the collecting agent being added is the organic medicament of esters, including thiophosphate, butyl ether alcohol or sulphur ammonia
Rouge etc., total dosage are 20~50g/tRaw ore。
The foaming agent being added is terpenic oil, and dosage is 5~30g/tRaw ore。
Step 4 adds pH regulator and molybdenum ore object activator in carrying out mixing refining process, carries out triple cleaning and obtains
To required copper-molybdenum bulk concentrate.
In this step, the pH regulator being added is lime, and dosage is 10~50g/tRaw ore。
The molybdenum ore object activator being added includes one or both of waterglass, acidified sodium silicate；It is living by molybdenum ore object
The adjustable ore pulp of agent improves molybdenum mineral surface active, promotes molybdenum ore object hydrophobic, increases molybdenum ore object and floats, it is mixed to obtain copper-molybdenum
Close concentrate；
In the specific implementation, the dosage for the molybdenum ore object activator being added is 100~500g/tRaw ore。
It is described in detail below with process of the specific example to above-mentioned beneficiation method:
Example 1, certain copper-molybdenum green ore copper grade 0.46%, molybdenum grade 0.044%, process mineralogy is research shows that the ore
Middle copper-bearing mineral is mainly chalcopyrite and bornite, and molybdenum-bearing mineral is mainly molybdenite.
The ore is subjected to ore grinding using wet ball mill, ore milling product granularity is that -0.074mm accounts for 55~70%, is used
The organic medicament BKAP of grease type carries out copper-molybdenum bulk flotation as foaming agent as collecting agent, terpenic oil, and bulk flotation includes one
Secondary roughing, is scanned twice and triple cleaning, roughing collector dosage 40g/t, frother dosages 20g/t scan dosing
Successively it is decremented to the one third of roughing；
It mixes selected operation addition regulator and includes at least lime, dosage 50g/t, molybdenum ore object activator includes at least
One of waterglass, acidified sodium silicate, dosage 200g/t, selected two, three operations add regulator in right amount, keep ore concentrate
PH value is starched, copper-molybdenum bulk concentrate is obtained.
The closed circuit result in laboratory is copper-molybdenum bulk concentrate cupric 28.54%, copper recovery 87.95%；Containing molybdenum 0.84%, molybdenum
The rate of recovery 82.32%.
Example 2, certain copper-molybdenum green ore copper grade 0.62%, molybdenum grade 0.037%, process mineralogy is research shows that the ore
Middle copper-bearing mineral is mainly chalcopyrite, and with a small amount of bornite, vitreous copper etc., molybdenum-bearing mineral is mainly molybdenite.
The ore is subjected to ore grinding using wet ball mill, ore milling product granularity is that -0.074mm accounts for 55~70%, is used
Organic grease type medicament BKAP0 carries out copper-molybdenum bulk flotation as foaming agent as collecting agent, terpenic oil, and bulk flotation includes one
Secondary roughing, is scanned twice and triple cleaning, roughing collector dosage 28g/t, frother dosages 15g/t scan dosing
Successively it is decremented to the one third of roughing；
It mixes selected operation addition regulator and includes at least lime, dosage 50g/t, molybdenum ore object activator includes at least
One of waterglass, acidified sodium silicate, dosage 200g/t, selected two, three operations add regulator in right amount, keep ore concentrate
PH value is starched, copper-molybdenum bulk concentrate is obtained.
The closed circuit result in laboratory is copper-molybdenum bulk concentrate cupric 26.81%, copper recovery 86.19%；Containing molybdenum 1.42%, molybdenum
The rate of recovery 84.11%.
It is worth noting that, the content being not described in detail in the embodiment of the present invention belongs to professional and technical personnel in the field's public affairs
The prior art known.
In conclusion the method for the embodiment of the present invention has the advantages that
1, without carrying out processing of sizing mixing to raw ore, roughing flotation environment is improved, improves purpose in roughing sessions
Mineral floating efficiency.
2, roughing operation has copper mine using copper-molybdenum special efficacy collecting agent thiophosphate, butyl ether alcohol, sulphur ammoniacum etc.
Preferable selectivity.
3, selected operation adding purpose mineral orientation activator is being mixed, is increasing target minreal surface hydrophobic, improves mesh
Mineral recovery rate.Using the resulting copper-molybdenum bulk concentrate copper grade of this method generally 26% or more, copper recovery is higher than
86%；For molybdenum grade 0.7% or more, molybdenum recovery is higher than 82%.
4, operation sequence is simplified, separation index is high and stablizes, and securely and reliably, is conducive to carry out industrialized production.
5, Technological adaptability is strong, and the particulate copper-molybdenum object of low-grade, embedding cloth complexity not only can be recycled, significantly improve copper-molybdenum
The quality and the rate of recovery of bulk concentrate, especially molybdenum mineral recovery rate are greatly improved, and easy to operate, and controllability is strong, right
Ore adaptability is also relatively strong.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (5)
1. a kind of beneficiation method of copper-molybdenum, which is characterized in that the described method includes:
Step 1 carries out ore grinding processing to copper-molybdenum raw ore；
Step 2 does not add any regulator to ore pulp in ore grinding treatment process, so that ore pulp is kept natural ph, in natural pH
Value is lower to carry out bulk flotation operation；
Step 3 is carrying out ore pulp to sequentially add copper-molybdenum collecting agent, foaming agent in rougher process into ore pulp, carries out copper-molybdenum
Bulk flotation roughing scans to obtain tailing twice；
Step 4 adds pH regulator and molybdenum ore object activator in carrying out mixing refining process, carries out triple cleaning and obtains institute
Need copper-molybdenum bulk concentrate.
2. the beneficiation method of copper-molybdenum according to claim 1, which is characterized in that in step 3,
The collecting agent being added is the organic medicament of esters, including thiophosphate, butyl ether alcohol or sulphur ammoniacum, and total dosage is 20
~50g/tRaw ore。
3. the beneficiation method of copper-molybdenum according to claim 1, which is characterized in that in step 3,
The foaming agent being added is terpenic oil, and dosage is 5~30g/tRaw ore。
4. the beneficiation method of copper-molybdenum according to claim 1, which is characterized in that in step 4,
The pH regulator being added is lime, and dosage is 10~50g/tRaw ore。
5. the beneficiation method of copper-molybdenum according to claim 1, which is characterized in that in step 4,
The molybdenum ore object activator being added includes one or both of waterglass, acidified sodium silicate；
And the dosage for the molybdenum ore object activator being added is 100~500g/tRaw ore。
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