CN118022987B - Zinc oxide collector, preparation and use methods thereof - Google Patents

Zinc oxide collector, preparation and use methods thereof Download PDF

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Publication number
CN118022987B
CN118022987B CN202410424491.6A CN202410424491A CN118022987B CN 118022987 B CN118022987 B CN 118022987B CN 202410424491 A CN202410424491 A CN 202410424491A CN 118022987 B CN118022987 B CN 118022987B
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parts
zinc oxide
collector
oxide collector
ethanol
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CN118022987A (en
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尚衍波
凌石生
岳守艳
李达
张银雪
刘浩
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Beikuang Chemical Technology Cangzhou Co ltd
BGRIMM Technology Group Co Ltd
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Beikuang Chemical Technology Cangzhou Co ltd
BGRIMM Technology Group Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/01—Organic compounds containing nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/008—Organic compounds containing oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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Abstract

The application provides a zinc oxide collector, a preparation method and a use method thereof, and relates to the field of beneficiation reagents. The zinc oxide collector comprises the following raw materials in parts by weight: 30-50 parts of dodecyl amine, 45-75 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol. The zinc oxide collector provided by the application has the characteristics of easy water dissolution, good dispersibility, good foam friability and the like, is prepared without adding a large amount of hydrochloric acid, is environment-friendly, fully exerts the synergistic effect of the dodecyl amine, the glacial acetic acid, the methyl isobutyl carbinol, the diesel oil and the ethanol, maintains the collecting capability of the traditional amine collector, obviously improves the solubility and the dispersibility, can reduce the dosage of the flotation collector, has low medicament cost, and can achieve better sorting effect with less dosage.

Description

Zinc oxide collector, preparation and use methods thereof
Technical Field
The application relates to the field of beneficiation reagents, in particular to a zinc oxide collecting agent, a preparation method and a use method thereof.
Background
Zinc oxide is one of important resources for extracting zinc element, the flotation method is mainly adopted for the beneficiation of zinc oxide, and the amine cationic collector flotation method is the most widely applied and stable in index.
However, amine cationic collectors have significant drawbacks: firstly, a large amount of hydrochloric acid is required to be added for configuration and use of the amine collector, so that volatility and corrosiveness are enhanced, a great threat is formed to human health, and potential safety hazards of operation are increased; secondly, because the amine collector has a higher solidifying point, the amine collector needs to be melted in a heating mode in a low-temperature environment so as to facilitate dosing operation, which undoubtedly increases energy consumption and operation complexity; in addition, even through a large amount of hydrochloric acid is configured, the amine collector still has the problems of insufficient solubility and selectivity, so that the dosage of the agent is large, and the flotation recovery rate is unsatisfactory.
In view of the above, there is a need for an efficient and environmentally friendly collector that, on the one hand, improves zinc oxide recovery and, on the other hand, overcomes the drawbacks of conventional amine collectors, such as dependence on hydrochloric acid, poor solubility, and poor selectivity, during the configuration process.
Disclosure of Invention
The application aims to provide a zinc oxide collector, a preparation method and a use method thereof, so as to solve the problems.
In order to achieve the above object, a first aspect of the present application provides a zinc oxide collector, comprising, by weight: 30-50 parts of dodecyl amine, 45-75 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
Optionally, the zinc oxide collector comprises the following raw materials in parts by weight: 35-45 parts of dodecyl amine, 50-70 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
Optionally, the zinc oxide collector comprises the following raw materials in parts by weight: 35-45 parts of dodecyl amine, 53-68 parts of glacial acetic acid, 3-5 parts of methyl isobutyl carbinol, 6-9 parts of diesel oil and 6-9 parts of ethanol.
The second aspect of the application provides a method for preparing a zinc oxide collector, comprising the following steps:
Firstly mixing the dodecyl amine and the glacial acetic acid to obtain a mixed solution A;
secondly, mixing the methyl isobutyl carbinol, the diesel oil and the ethanol to obtain a mixed solution B;
and thirdly mixing the mixed solution A and the mixed solution B to obtain the zinc oxide collector.
Optionally, the dodecylamine is heated to melt and the first mixing is performed.
Optionally, the temperature of the first mixing is 25-30 ℃ and the time is 0.5-1 h.
Optionally, the temperature of the second mixing is 25-30 ℃ and the time is 0.5-1 h.
Optionally, the temperature of the third mixing is 25-30 ℃ and the time is 0.5-1 h.
The third aspect of the application provides a use method of the zinc oxide collector, which comprises the steps of mixing the zinc oxide collector with pretreated zinc oxide ore, and carrying out flotation to obtain zinc oxide concentrate.
Optionally, the zinc oxide collector is used in the flotation in an amount of 200g/t feed to 800g/t feed.
Compared with the prior art, the application has the beneficial effects that:
The zinc oxide collector provided by the application has the characteristics of easy water dissolution, good dispersibility, good foam friability and the like, can be directly added in flotation operation during use, does not need to be prepared by adding a large amount of hydrochloric acid, and is environment-friendly; the collector fully plays the synergistic effect of the dodecyl amine, the glacial acetic acid, the methyl isobutyl carbinol, the diesel oil and the ethanol, the dodecyl amine is a cationic collector, and can be combined with the anionic groups on the surface of the zinc oxide mineral through the electrostatic effect, so that the adhesion force of minerals and foam is enhanced, the glacial acetic acid reacts with the dodecyl amine to obtain the water-soluble dodecyl amine acetate, the collecting capability of the collector on the zinc oxide mineral in ore pulp can be enhanced, the diesel oil can form oil drops in the ore pulp, the diesel oil can act with the hydrophobic groups on the surface of the zinc oxide mineral, the ethanol can serve as a cosolvent, and the dissolution and dispersion of the dodecyl amine collector in the ore pulp are promoted, so that the utilization rate of the collector is improved. The collector maintains the collecting capability of the traditional amine collector, and obviously improves the solubility and the dispersion performance, so that the collector can be uniformly dispersed in ore pulp and can be effectively adsorbed on the surface of zinc oxide; meanwhile, the foam formed by the zinc oxide collector has excellent brittle dispersion characteristics, and the brittle dispersion characteristics are beneficial to improving the concentrate grade and facilitating the transportation and treatment of the foam, so that the efficient mineral separation effect is realized; the zinc oxide collector provided by the application can reduce the dosage of the flotation collector, has low medicament cost, and can achieve better sorting effect with less dosage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.
Fig. 1 is a schematic diagram of the preparation flow of the zinc oxide collector provided in example 1.
Detailed Description
The term as used herein:
"prepared from … …" is synonymous with "comprising". The terms "comprising," "including," "having," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.
The conjunction "consisting of … …" excludes any unspecified element, step or component. If used in a claim, such phrase will cause the claim to be closed, such that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of … …" appears in a clause of the claim body, rather than immediately following the subject, it is limited to only the elements described in that clause; other elements are not excluded from the stated claims as a whole.
When an equivalent, concentration, or other value or parameter is expressed as a range, preferred range, or a range bounded by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when ranges of "1 to 5" are disclosed, the described ranges should be construed to include ranges of "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a numerical range is described herein, unless otherwise indicated, the range is intended to include its endpoints and all integers and fractions within the range.
In these examples, the parts and percentages are by mass unless otherwise indicated.
"Parts by mass" means a basic unit of measurement showing the mass ratio of a plurality of components, and 1 part may be any unit mass, for example, 1g, 2.689g, or the like. If we say that the mass part of the a component is a part and the mass part of the B component is B part, the ratio a of the mass of the a component to the mass of the B component is represented as: b. or the mass of the A component is aK, the mass of the B component is bK (K is any number and represents a multiple factor). It is not misunderstood that the sum of the parts by mass of all the components is not limited to 100 parts, unlike the parts by mass.
"And/or" is used to indicate that one or both of the illustrated cases may occur, e.g., a and/or B include (a and B) and (a or B).
The first aspect of the application provides a zinc oxide collector, which comprises the following raw materials in parts by weight: 30-50 parts of dodecyl amine, 45-75 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
In some embodiments, the zinc oxide collector can be made from a feedstock of 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, or any value between 30 parts and 50 parts, glacial acetic acid can be 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, or any value between 45 parts and 75 parts, methyl isobutyl carbinol can be 2 parts, 3 parts, 4 parts, 5 parts, or any value between 2 parts and 5 parts, diesel oil can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or any value between 5 parts and 10 parts, and ethanol can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or any value between 5 parts and 10 parts.
It is noted that the amount of ethylenediamine in the zinc oxide collector is 30-50 parts, and if less than 30 parts, the amine content in the zinc oxide collector decreases, resulting in a decrease in the collecting ability; if the amount exceeds 50 parts, the amine content is high, the solubility and dispersibility of the zinc oxide collector are poor, and the flotation index is lowered. 45-75 parts of glacial acetic acid in the zinc oxide collector, if the amount of glacial acetic acid in the zinc oxide collector is less than 45 parts, the amine solubility in the zinc oxide collector is reduced, so that flotation is not facilitated; if the amount exceeds 75 parts, glacial acetic acid is excessive and is liable to volatilize. 2-5 parts of methyl isobutyl carbinol in the zinc oxide collector, if less than 2 parts, the foam layer is thin during floatation, and the floatation recovery rate is affected; if the concentration of the concentrate exceeds 5 parts, the thickness of the flotation froth layer influences the grade of the concentrate. 5-10 parts of diesel oil in the zinc oxide collector, if less than 5 parts, the synergistic effect of the diesel oil and the dodecyl amine is weakened, and the flotation recovery rate is influenced; if the content exceeds 10 parts, the content of other components in the zinc oxide collector is reduced, which is not favorable for exerting the synergistic effect among the components of the zinc oxide collector. 5-10 parts of ethanol in the zinc oxide collector, if the content of ethanol in the zinc oxide collector is less than 5 parts, the solubility and the dispersibility of the zinc oxide collector are weakened, so that the zinc oxide collector is not beneficial to dispersion and adsorption of the zinc oxide collector in ore pulp; if the content exceeds 10 parts, the content of other components in the zinc oxide collector is reduced, which is not favorable for exerting the synergistic effect among the components of the zinc oxide collector.
Optionally, the zinc oxide collector comprises the following raw materials in parts by weight: 35-45 parts of dodecyl amine, 50-70 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
In some embodiments, the zinc oxide collector can be made from 35 parts, 37 parts, 39 parts, 41 parts, 43 parts, 45 parts, or any value between 35 and 45 parts, glacial acetic acid can be 50 parts, 52 parts, 54 parts, 56 parts, 58 parts, 60 parts, 62 parts, 64 parts, 66 parts, 68 parts, 70 parts, or any value between 50 and 70 parts, methyl isobutyl carbinol can be 2 parts, 3 parts, 4 parts, 5 parts, or any value between 2 and 5 parts, diesel oil can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or any value between 5 and 10 parts, and ethanol can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or any value between 5 and 10 parts.
Optionally, the zinc oxide collector comprises the following raw materials in parts by weight: 35-45 parts of dodecyl amine, 53-68 parts of glacial acetic acid, 3-5 parts of methyl isobutyl carbinol, 6-9 parts of diesel oil and 6-9 parts of ethanol.
In some embodiments, the zinc oxide collector can be made from 35 parts, 36 parts, 38 parts, 40 parts, 42 parts, 44 parts, or any value between 35 and 45 parts, glacial acetic acid can be 53 parts, 55 parts, 57 parts, 59 parts, 61 parts, 63 parts, 65 parts, 67 parts, 68 parts, or any value between 53 and 68 parts, methyl isobutyl carbinol can be 3.5 parts, 4.5 parts, or any value between 3 and 5 parts, diesel oil can be 6.5 parts, 7.5 parts, 8.5 parts, or any value between 6 and 9 parts, and ethanol can be 6.5 parts, 7.5 parts, 8.5 parts, or any value between 6 and 9 parts.
The second aspect of the application provides a method for preparing a zinc oxide collector, comprising the following steps:
Firstly mixing the dodecyl amine and the glacial acetic acid to obtain a mixed solution A;
secondly, mixing the methyl isobutyl carbinol, the diesel oil and the ethanol to obtain a mixed solution B;
and thirdly mixing the mixed solution A and the mixed solution B to obtain the zinc oxide collector.
It is noted that the application performs a first mixing, a second mixing and a third mixing respectively, the first mixing fully mixes the dodecyl amine and the glacial acetic acid, and the dodecyl amine acetate which is easy to dissolve in water is generated by the reaction; the second mixing is to mix the auxiliary methyl isobutyl carbinol, the diesel oil and the ethanol in advance; and thirdly, mixing the two components to give full play to the synergistic effect of the components and obtain the zinc oxide collector.
Optionally, the dodecylamine is heated to melt and the first mixing is performed.
Optionally, the temperature of the first mixing is 25-30 ℃ and the time is 0.5-1 h.
In some embodiments, the temperature of the first mixture may be any value between 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, or 25 ℃ -30 ℃ for any value between 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, or 0.5h-1 h.
Optionally, the temperature of the second mixing is 25-30 ℃ and the time is 0.5-1 h.
In some embodiments, the temperature of the second mixture may be any value between 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, or 25 ℃ -30 ℃ for any value between 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, or 0.5h-1 h.
Optionally, the temperature of the third mixing is 25-30 ℃ and the time is 0.5-1 h.
In some embodiments, the temperature of the third mixture may be any value between 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, or 25 ℃ -30 ℃ for any value between 0.5h, 0.6h, 0.7h, 0.8h, 0.9h, 1h, or 0.5h-1 h.
It is worth noting that the temperatures of the first mixing, the second mixing and the third mixing are within 25-30 ℃ and the time is within 0.5-1 h, so that the laurylamine can be dissolved, other components such as glacial acetic acid and the like are prevented from volatilizing due to overhigh temperature, enough time is ensured to be uniformly mixed, and the energy consumption caused by overlong-time mixing is also avoided.
The third aspect of the application provides a use method of the zinc oxide collector, which comprises the steps of mixing the zinc oxide collector with pretreated zinc oxide ore, and carrying out flotation to obtain zinc oxide concentrate.
Optionally, the zinc oxide collector is used in the flotation in an amount of 200g/t feed to 800g/t feed.
In some embodiments, the zinc oxide collector can be used in the flotation in an amount of 200g/t, 250g/t, 300g/t, 350g/t, 400g/t, 450g/t, 500g/t, 550g/t, 600g/t, 650g/t, 700g/t, 750g/t, 800g/t, or anywhere between 200g/t and 800 g/t.
Embodiments of the present application will be described in detail below with reference to specific examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present application and should not be construed as limiting the scope of the present application. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
The embodiment provides a zinc oxide collector and a preparation method thereof, wherein the collector comprises the following components in parts by weight: 30 parts of dodecyl amine, 45 parts of glacial acetic acid, 3 parts of n-methyl isobutyl carbinol, 8 parts of diesel oil and 8 parts of ethanol;
The preparation method comprises the following steps:
(1) Heating dodecylamine to melt, and then carrying out first mixing with glacial acetic acid at 25 ℃ and stirring for 1h to obtain a mixed solution A;
(2) Secondly mixing n-methyl isobutyl carbinol with diesel oil and ethanol at 25 ℃, and stirring for 1h to obtain a mixed solution B;
(3) Adding the mixed solution B into the mixed solution A, carrying out third mixing at 25 ℃, and stirring for 1h to obtain a zinc oxide collecting agent;
the preparation flow of the zinc oxide collector provided in the embodiment is shown in fig. 1.
Example 2
The embodiment provides a zinc oxide collector and a preparation method thereof, wherein the collector comprises the following components in parts by weight: 35 parts of dodecyl amine, 52 parts of glacial acetic acid, 4 parts of n-methyl isobutyl carbinol, 10 parts of diesel oil and 10 parts of ethanol;
The preparation method comprises the following steps:
(1) Heating dodecylamine to melt, and then carrying out first mixing with glacial acetic acid at 30 ℃ and stirring for 1h to obtain a mixed solution A;
(2) Secondly mixing n-methyl isobutyl carbinol with diesel oil and ethanol at 30 ℃, and stirring for 1h to obtain a mixed solution B;
(3) And adding the mixed solution B into the mixed solution A, carrying out third mixing at 30 ℃, and stirring for 1h to obtain the zinc oxide collector.
Example 3
The embodiment provides a zinc oxide collector and a preparation method thereof, wherein the collector comprises the following components in parts by weight: 40 parts of dodecyl amine, 60 parts of glacial acetic acid, 5 parts of n-methyl isobutyl carbinol, 7 parts of diesel oil and 7 parts of ethanol;
The preparation method comprises the following steps:
(1) Heating dodecylamine to melt, and then carrying out first mixing with glacial acetic acid at 28 ℃ and stirring for 0.5h to obtain a mixed solution A;
(2) Secondly mixing n-methyl isobutyl carbinol with diesel oil and ethanol at 28 ℃, and stirring for 0.5h to obtain a mixed solution B;
(3) And adding the mixed solution B into the mixed solution A, carrying out third mixing at 28 ℃, and stirring for 0.5h to obtain the zinc oxide collector.
Example 4
The embodiment provides a zinc oxide collector and a preparation method thereof, wherein the collector comprises the following components in parts by weight: 45 parts of dodecyl amine, 68 parts of glacial acetic acid, 3 parts of n-methyl isobutyl carbinol, 9 parts of diesel oil and 9 parts of ethanol;
The preparation method is identical to example 1.
Example 5
The embodiment provides a zinc oxide collector and a preparation method thereof, wherein the collector comprises the following components in parts by weight: 50 parts of dodecyl amine, 75 parts of glacial acetic acid, 2 parts of n-methyl isobutyl carbinol, 7 parts of diesel oil and 7 parts of ethanol;
The preparation method is identical to example 1.
Comparative example 1
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: no dodecyl amine is added;
The preparation method is identical to example 1.
Comparative example 2
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: no glacial acetic acid is added;
The preparation method is identical to example 1.
Comparative example 3
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: n-methyl isobutyl carbinol is not added;
The preparation method is identical to example 1.
Comparative example 4
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: diesel oil is not added;
The preparation method is identical to example 1.
Comparative example 5
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: ethanol is not added;
The preparation method is identical to example 1.
Comparative example 6
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: in this comparative example, glacial acetic acid in example 1 was replaced with hydrochloric acid;
The preparation method is identical to example 1.
Comparative example 7
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: this comparative example replaces the dodecylamine of example 1 with octadecylamine;
The preparation method is identical to example 1.
Comparative example 8
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: this comparative example replaces the dodecylamine of example 1 with cocoamine;
The preparation method is identical to example 1.
Comparative example 9
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: this comparative example replaces the diesel fuel in example 1 with kerosene;
The preparation method is identical to example 1.
Comparative example 10
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: this comparative example replaces the ethanol of example 1 with isopropanol;
The preparation method is identical to example 1.
Comparative example 11
This comparative example provides a zinc oxide collector and a method for preparing the same, which is different from example 1 in that: this comparative example replaces the methyl isobutyl carbinol in example 1 with a 2# oil;
The preparation method is identical to example 1.
Comparative example 12
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the dodecyl amine of the comparative example is 25 parts;
The preparation method is identical to example 1.
Comparative example 13
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the dodecyl amine of the comparative example is 55 parts;
The preparation method is identical to example 1.
Comparative example 14
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the glacial acetic acid of this comparative example was 35 parts;
The preparation method is identical to example 1.
Comparative example 15
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the glacial acetic acid of this comparative example was 85 parts;
The preparation method is identical to example 1.
Comparative example 16
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: n-methyl isobutyl carbinol of this comparative example was 1 part;
The preparation method is identical to example 1.
Comparative example 17
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: n-methyl isobutyl carbinol of this comparative example was 8 parts;
The preparation method is identical to example 1.
Comparative example 18
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the diesel oil of this comparative example is 3 parts;
The preparation method is identical to example 1.
Comparative example 19
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the diesel oil of this comparative example is 15 parts;
The preparation method is identical to example 1.
Comparative example 20
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: 3 parts of ethanol of the comparative example;
The preparation method is identical to example 1.
Comparative example 21
This example provides a zinc oxide collector and a method for preparing the same, which differ from example 1 in that: the ethanol of the comparative example is 15 parts;
The preparation method is identical to example 1.
The flotation performance of the flotation collectors obtained in the examples and the comparative examples is tested, and the specific steps are as follows:
Preparing ore pulp with solid content of 30-35% by desliming zinc oxide ore feeding (Zn content of 5.52%) and water, adding sodium carbonate and sodium hexametaphosphate to adjust the ore pulp, adding an activating agent sodium sulfide to stir, adding a flotation collector to perform flotation to obtain concentrate, and controlling the adding amount of the flotation collector to be 400g/t based on the zinc oxide ore feeding; the Zn content and Zn recovery rate in the concentrate are detected and calculated by the following method:
Zn content in zinc oxide concentrate: detecting by using a method in GB/T8151.23-2020;
zn recovery = (Zn content in zinc oxide concentrate yield)/(Zn content in zinc oxide feed yield) 100%;
The results are shown in Table 1;
TABLE 1Zn content and Zn recovery test
From table 1, the following points can be found:
(1) From the examples 1-5, the flotation collector fully exerts the synergistic effect of the dodecyl amine, the glacial acetic acid, the methyl isobutyl carbinol, the diesel oil and the ethanol, is beneficial to dispersing the flotation collector in ore pulp and adsorbing on the surface of zinc oxide, and has high Zn content and high Zn recovery rate in concentrate;
(2) Comparing example 1 with comparative examples 1-5, it can be seen that the absence of dodecylamine in comparative example 1 results in reduced flotation collector performance, reduced Zn content in concentrate, reduced Zn recovery; the comparative example 2 does not include glacial acetic acid, which results in the reduction of the solubility and dispersion properties of the flotation collector, the reduction of Zn content in the concentrate and the reduction of Zn recovery rate; the comparative example 3 does not include n-methyl isobutyl carbinol, which results in a thin flotation froth layer, reduced Zn content in concentrate and reduced Zn recovery rate; the comparative example 4 does not include diesel oil, which results in reduced performance of the flotation collector, reduced Zn content in concentrate and reduced Zn recovery; the comparative example 5 does not include ethanol, which results in reduced performance of the flotation collector, reduced Zn content in the concentrate and reduced Zn recovery;
(3) Comparing example 1 with comparative examples 6-11, it can be seen that comparative example 6 replaces glacial acetic acid with hydrochloric acid in equal amount, the hydrochloric acid is easy to form complex with dodecylamine, the solubility and dispersion performance are reduced, the performance of the flotation collector is reduced, the Zn content in the concentrate is reduced, and the Zn recovery rate is reduced; comparative example 7, the equivalent substitution of dodecylamine with octadecylamine results in reduced performance of the flotation collector, reduced Zn content in the concentrate and reduced Zn recovery; comparative example 8 replaces equivalent amount of dodecylamine with cocoamine, resulting in reduced performance of the flotation collector, reduced Zn content in concentrate and reduced Zn recovery; in comparative example 9, the equivalent amount of diesel oil is replaced by kerosene, so that the performance of a flotation collector is reduced, the Zn content in concentrate is reduced, and the Zn recovery rate is reduced; comparative example 10, in which the equivalent amount of ethanol was replaced with isopropanol, resulted in a decrease in the performance of the flotation collector, a decrease in the Zn content in the concentrate, and a decrease in Zn recovery; comparative example 11 the equivalent replacement of methyl isobutyl carbinol with 2# oil resulted in reduced performance of the flotation collector, reduced Zn content in the concentrate and reduced Zn recovery;
(4) Comparing example 1 with comparative examples 12-21, it can be seen that in comparative example 12, the amount of ethylenediamine is 25 parts, which is lower than 30-50 parts defined by the present application, and the Zn content in the concentrate is reduced and the Zn recovery rate is reduced; in comparative example 13, the amount of dodecylamine is 55 parts, which exceeds 30-50 parts defined by the application, and the Zn content in the concentrate is reduced and the Zn recovery rate is reduced; 35 parts of glacial acetic acid in comparative example 14, which is lower than 45-75 parts defined by the application, the solubility of the flotation collector is reduced, the Zn content in the concentrate is reduced, and the Zn recovery rate is reduced; in comparative example 15, glacial acetic acid was 85 parts, which exceeded the 30-60 parts defined in the present application, resulting in reduced Zn content in the concentrate and reduced Zn recovery; in comparative example 16, 1 part of n-methyl isobutyl carbinol is lower than 2-5 parts defined by the application, the flotation foam layer is thin, the Zn content in the concentrate is reduced, and the Zn recovery rate is reduced; in comparative example 17, 8 parts of n-methyl isobutyl carbinol exceeds 2-5 parts defined by the application, foam adhesion is caused, so that the Zn content in concentrate is reduced, and the Zn recovery rate is reduced; the diesel oil in comparative example 18 is 3 parts, which is lower than 5-10 parts defined by the application, so that the diesel oil is difficult to perform synergistic effect with other components, the Zn content in concentrate is reduced, and the Zn recovery rate is reduced; the diesel oil in comparative example 19 is 15 parts, which exceeds the preferred 5-10 parts of the application, resulting in reduced Zn content and reduced Zn recovery in the concentrate; the ethanol in the comparative example 20 is 3 parts, which is lower than 5-10 parts defined by the application, so that the ethanol is difficult to play a synergistic effect with other components, the Zn content in the concentrate is reduced, and the Zn recovery rate is reduced; the ethanol in comparative example 21 was 15 parts, 5-10 parts beyond the limit of the present application, resulting in a reduced Zn content in the concentrate and reduced Zn recovery.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (10)

1. The zinc oxide collector is characterized by comprising the following raw materials in parts by weight: 30-50 parts of dodecyl amine, 45-75 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
2. The zinc oxide collector of claim 1, wherein the raw materials comprise, in parts by weight: 35-45 parts of dodecyl amine, 50-70 parts of glacial acetic acid, 2-5 parts of methyl isobutyl carbinol, 5-10 parts of diesel oil and 5-10 parts of ethanol.
3. The zinc oxide collector of claim 2, comprising the following raw materials in parts by weight: 35-45 parts of dodecyl amine, 53-68 parts of glacial acetic acid, 3-5 parts of methyl isobutyl carbinol, 6-9 parts of diesel oil and 6-9 parts of ethanol.
4. A method of preparing a zinc oxide collector according to any one of claims 1 to 3, comprising:
Firstly mixing the dodecyl amine and the glacial acetic acid to obtain a mixed solution A;
secondly, mixing the methyl isobutyl carbinol, the diesel oil and the ethanol to obtain a mixed solution B;
and thirdly mixing the mixed solution A and the mixed solution B to obtain the zinc oxide collector.
5. The method of producing a zinc oxide collector according to claim 4, wherein the first mixing is performed by heating the dodecylamine until it melts.
6. The method of preparing a zinc oxide collector of claim 4, wherein the first mixing is at a temperature of 25 ℃ to 30 ℃ for a time of 0.5h to 1h.
7. The method of preparing a zinc oxide collector of claim 4, wherein the second mixing is at a temperature of 25 ℃ to 30 ℃ for a time of 0.5h to 1h.
8. The method of producing a zinc oxide collector according to claim 4, wherein the third mixing is carried out at a temperature of 25 ℃ to 30 ℃ for a time of 0.5h to 1h.
9. A method of using a zinc oxide collector according to any one of claims 1 to 3, wherein the zinc oxide collector and pretreated zinc oxide ore are mixed and subjected to flotation to obtain zinc oxide concentrate.
10. The method of using a zinc oxide collector of claim 9, wherein the zinc oxide collector is used in the flotation in an amount of 200g/t feed to 800g/t feed.
CN202410424491.6A 2024-04-10 2024-04-10 Zinc oxide collector, preparation and use methods thereof Active CN118022987B (en)

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