CN114918045B - Graphite ore flotation reagent and preparation method thereof - Google Patents
Graphite ore flotation reagent and preparation method thereof Download PDFInfo
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- CN114918045B CN114918045B CN202210514383.9A CN202210514383A CN114918045B CN 114918045 B CN114918045 B CN 114918045B CN 202210514383 A CN202210514383 A CN 202210514383A CN 114918045 B CN114918045 B CN 114918045B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000005188 flotation Methods 0.000 title claims abstract description 49
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 45
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 42
- 239000010439 graphite Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 210000004209 hair Anatomy 0.000 claims abstract description 44
- 239000002283 diesel fuel Substances 0.000 claims abstract description 24
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 18
- 239000008396 flotation agent Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- DSCFFEYYQKSRSV-UHFFFAOYSA-N 1L-O1-methyl-muco-inositol Natural products COC1C(O)C(O)C(O)C(O)C1O DSCFFEYYQKSRSV-UHFFFAOYSA-N 0.000 claims description 6
- VJXUJFAZXQOXMJ-UHFFFAOYSA-N D-1-O-Methyl-muco-inositol Natural products CC12C(OC)(C)OC(C)(C)C2CC(=O)C(C23OC2C(=O)O2)(C)C1CCC3(C)C2C=1C=COC=1 VJXUJFAZXQOXMJ-UHFFFAOYSA-N 0.000 claims description 6
- DSCFFEYYQKSRSV-KLJZZCKASA-N D-pinitol Chemical compound CO[C@@H]1[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@H]1O DSCFFEYYQKSRSV-KLJZZCKASA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkylbenzene sulfonate Chemical class 0.000 claims description 4
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- 235000012000 cholesterol Nutrition 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 claims description 2
- 229940043264 dodecyl sulfate Drugs 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- 150000003904 phospholipids Chemical class 0.000 claims description 2
- 150000003626 triacylglycerols Chemical class 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 15
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 description 15
- 239000003814 drug Substances 0.000 description 13
- 238000000227 grinding Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 235000019198 oils Nutrition 0.000 description 7
- 230000002000 scavenging effect Effects 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 239000010665 pine oil Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 235000019496 Pine nut oil Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 239000010490 pine nut oil Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- 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
- B03D2203/04—Non-sulfide ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a graphite ore flotation reagent and a preparation method thereof. The flotation reagent comprises: animal hair, surfactants, diesel and foaming agents; has the advantages of low cost, environmental protection and improvement of the sorting enrichment ratio. The preparation method comprises placing surfactant in water, dissolving, and standing; adding diesel oil and foaming agent, mixing uniformly, and standing; finally adding animal hair, stirring, standing, transferring the upper suspension into another container, and sealing for preservation to obtain the flotation reagent. The preparation method has the advantages of simple operation and low production cost.
Description
Technical Field
The invention belongs to the technical field of mineral separation, and particularly relates to a graphite ore flotation reagent and a preparation method thereof.
Background
In recent years, graphite, particularly large-scale crystalline graphite, has become a key resource in strategically emerging industries and nuclear power fields due to the characteristics of excellent electrical conductivity, thermal conductivity, high chemical stability and the like. Especially, along with the rising of the research heat of graphene and the wide application of the graphene in the field of high-precision tips, the development and the utilization of graphene raw materials, namely graphite mineral resources, are increasingly attracting attention, and the mineral dressing of graphite ores is required to be developed towards the directions of cleanness, high efficiency and environmental friendliness.
The traditional graphite ore dressing process has the phenomenon of screening processes of metal ores (such as copper, lead, zinc and other bulk mineral products) in a handsheet manner due to the common low productivity of graphite ore dressing factories, low social attention and the like. Therefore, no special research on graphite ore flotation agents is carried out on graphite ore resources, and the flotation agents adopted in industrial production are relatively single. In the current state of the art, most of the collectors used in graphite ore dressing plants are mainly kerosene and diesel oil, and foaming agents are commonly used 2# oil, BK201 and fusel. For other medicines such as MIBC, liquid paraffin, MB25, MF and GB, etc. the medicines are relatively rare in practical application due to the factors of high price, narrow application range or unstable effect.
The application range of the medicaments such as kerosene, diesel oil, no. 2 oil, BK201 and the like adopted by the existing graphite ore dressing plant is wider, but due to the enhancement of the environmental protection concept of the whole society, a great lifting space still exists in the following aspects: 1. the presence of a pungent odor; the medicament is poor in water solubility and easy to volatilize, so that the irritant gas inside and outside the factory building is diffused in the industrial production process, unnecessary waste of the medicament is caused, and certain damage is caused to the health of site workers. 2. The price is increased increasingly; the above-mentioned medicaments are not renewable in production raw materials, and thus raw material supply uncertainty increases, leading to increasing prices, which also requires improving the utilization efficiency of the above-mentioned medicaments or finding more economical alternatives.
Graphite ore beneficiation is different from other ores. Most of ores except graphite ores are subjected to flotation according to different ore properties, wherein the grinding times are mostly 2-3 times, the concentration times are mostly 3-5 times, and the most times are about 7 times (such as molybdenum ores); however, the graphite ore flotation process usually adopts 10 times of ore grinding and 11 times of concentration, and even more, 12 times of ore grinding and 13 times of concentration are achieved, which is about 2 times of the longest process of other ores. The graphite ore has the characteristics that the product standard of the graphite concentrate is more than other ores by one very important index, namely the product granularity distribution, namely the higher the large scale (the grain diameter is more than 0.15 mm), the higher the product grade; the lower the 325 mesh (particle size less than 0.045 mm) content, the higher the product grade. This results in that under the prior art conditions, the input of single grinding force cannot be large, thereby reducing the damage of scales caused by grinding. In addition, the enrichment ratio of the existing agents needs to be enhanced so as to quickly improve the concentrate grade and reduce the number of grinding sections. Based on the 2 points, in the prior art, the grinding and selecting times are necessarily more in order to obtain a qualified product, which is the reason that the difficulty of reducing the grinding times for one time or the selecting times for one time is very great on the basis of adopting the existing medicament at present.
In view of the defects of the prior art, the invention develops a new way from the angles of improving the water solubility and the sorting enrichment ratio of the medicament, further improving the utilization efficiency, reducing the medicament cost, shortening the process flow, enhancing the environmental friendliness and the like.
Disclosure of Invention
In view of the above problems, the present invention provides a graphite ore floatation agent. The flotation reagent comprises: animal hair, surfactants, diesel and foaming agents.
As a further improvement of the present invention, the flotation reagent comprises by weight: 60-75 parts of animal hair, 10-15 parts of surfactant, 5-10 parts of diesel oil and 5-10 parts of foaming agent.
As a further improvement of the present invention, the animal hair has a particle size of 0.001 to 1mm.
As a further improvement of the invention, the grain diameter of the animal hair is 0.001-0.06 mm; specifically, the animal hair preferably has a particle size of 0.001 to 0.053mm, and the flotation effect of the flotation agent is enhanced as the particle size of the animal hair is reduced. Animal hair is crushed in dry environment at room temperature to avoid loss or failure of effective components caused by humidity change or great temperature change.
As a further improvement of the invention, the animal hair is selected from the animal hair close to the animal fur, and preferably the animal hair closest to the animal fur is more grease on the animal hair close to the animal fur, and the grease on the animal hair is helpful to improve the sorting enrichment ratio.
As a further improvement of the invention, the animal hair may be replaced in whole or in part with an animal hair analogue.
As a further improvement of the present invention, the animal hair analog comprises: the animal hair analogue is prepared by mixing triglyceride, fatty acid, phospholipid and esterified cholesterol according to a certain proportion.
As a further improvement of the invention, the surfactant is one or a mixture of more of alkyl sulfonate, lauryl sulfate, alkylbenzene sulfonate and fatty alcohol polyoxyethylene (3) ether.
As a further improvement of the invention, the foaming agent is one or a mixture of a plurality of BK201, BK204, BC, MIBC and pinitol oil. BK201 and pinitol oil are more suitable for a flotation reagent in a graphite ore flotation roughing stage because of higher foam viscosity; BK204, BC, MIBC are more suitable for use in flotation reagents in the flotation beneficiation stage of graphite ores because of the slightly weaker froth viscosity produced than BK201 and pinitol oil.
The invention also provides a method for preparing the flotation reagent, which comprises the following steps:
step one, placing a surfactant into water, dissolving and standing;
step two, adding diesel oil and a foaming agent into the solution in the step one, uniformly mixing, and standing;
and thirdly, adding animal hair into the mixed solution in the second step, stirring, standing, extracting the upper suspension, transferring to another container, and sealing and preserving to obtain the flotation reagent.
As a further improvement of the invention, the solution in the first step is allowed to stand for 5min.
As a further improvement of the invention, the mixed solution in the second step is required to be kept stand for 10min.
As a further improvement of the invention, the mixed solution in the step three is stirred for 20min and then is kept still for 1h.
As a further improvement of the present invention, the flotation reagent in the above preparation method comprises, by weight: 60-75 parts of animal hair, 10-15 parts of surfactant, 5-10 parts of diesel oil and 5-10 parts of foaming agent.
As a further improvement of the invention, the mass fraction of water in the flotation agent in the preparation method is 10-30%.
The preparation method has the thought that the surfactant is dissolved in water to prepare a solution, so that a large amount of bubbles are generated, a large amount of water is entrained in the bubbles at the moment, the bubbles are too strong in brittleness and insufficient in toughness; the diesel oil and the foaming agent are continuously added, so that the size of bubbles is reduced, the number of bubbles is increased, and the toughness of the bubbles is enhanced; finally, animal hair with a plurality of times of micro-particles (0.001-1 mm) is added, on one hand, bubbles are wrapped with armor, the bubble loading capacity is enhanced, the volume density of the bubbles is improved, on the other hand, the hydrophobic bridging effect is utilized to enhance the polymerization force between mineralized bubbles, and meanwhile, gaps formed between the bubbles and the bubbles are utilized to facilitate the shedding of gangue, so that the enrichment ratio is improved, and the selectivity of the bubbles is enhanced.
Compared with the prior art, the graphite ore flotation reagent provided by the invention has the advantages of low cost, environmental friendliness and improvement of the sorting enrichment ratio; the preparation method of the flotation reagent provided by the invention has the advantages of simplicity in operation and low production cost.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer.
Example one, preparation of graphite Ore flotation reagent
15 parts of sodium dodecyl benzene sulfonate is placed in 80mL of warm water at 30 ℃ for full dissolution and standing for about 5min; sequentially adding 10 parts of diesel oil and 10 parts of BK201, uniformly mixing, and standing for about 10min; adding 65 parts of animal hair with the thickness of 0.001-0.053 mm, magnetically stirring for 20min, standing for about 1h, transferring the suspension into another clean container except for a small amount of residues at the bottom of the container, and sealing for preservation. The sum of the mass fractions of the main components of the solution (sodium dodecylbenzenesulfonate, diesel oil, BK201 and animal hair) was 74.33% by accounting.
Example two, preparation of graphite Ore flotation reagent
10 parts of sodium lauryl sulfate is placed in 80mL of warm water at 30 ℃ to be fully dissolved, and the mixture is kept stand for about 5min; sequentially adding 15 parts of diesel oil and 10 parts of pine nut oil, uniformly mixing, and standing for about 10min; adding 65 parts of animal hair with the diameter of 0.001-0.053 mm, magnetically stirring for 20min, standing for about 1h, transferring the suspension into another clean container except a small amount of residues at the bottom of the container, and sealing and preserving to obtain a flotation reagent, wherein the reagent is collector 1. The sum of the mass fractions of the main components (sodium lauryl sulfate, diesel oil, pine oil and animal hair) in the collector 1 is 85.76% after accounting.
Example three preparation of graphite Ore flotation reagent
10 parts of sodium lauryl sulfate is placed in 80mL of warm water at 30 ℃ to be fully dissolved, and the mixture is kept stand for about 5min; sequentially adding 15 parts of diesel oil and 10 parts of BK204, uniformly mixing, and standing for about 10min; adding 65 parts of animal hair with the diameter of 0.001-0.053 mm, magnetically stirring for 20min, standing for about 1h, transferring the suspension into another clean container except a small amount of residues at the bottom of the container, and sealing and preserving to obtain a flotation reagent, wherein the flotation reagent is collector 2. The sum of the mass fractions of the main components (sodium lauryl sulfate, diesel oil, BK204 and animal hair) in the collector 2 was 75.33% by accounting.
Example four, graphite ore flotation comparative test one
Graphite ore in the Heilongjiang area of China is taken as a test ore sample, and the fixed carbon content of the ore sample is about 13.5%. The ore sample is coarsely ground to 50% of the mass fraction with the particle size smaller than 0.15mm, and then the ore sample is divided into two parts, wherein one part of the ore sample is subjected to graphite ore floatation by adopting a traditional process flotation reagent (25 g/t diesel oil and 25g/t BK 201), and the other part of the ore sample is subjected to graphite ore floatation by adopting the flotation reagent prepared in the first embodiment (the reagent dosage is 50 g/t), and the roughing concentrate and the roughing tailings are obtained through primary roughing in the process flow. The test results are shown in Table 1.
Table 1 comparative test table
As can be seen from Table 1, the flotation reagent prepared in example I has the advantages that the yield of rougher concentrate is reduced, but the fixed carbon content and the recovery rate are greatly improved when the flotation reagent is used in the same amount as the traditional process reagent, and the high enrichment ratio of the flotation reagent is fully shown.
Example five, graphite ore flotation comparative test two
Graphite ore in the Heilongjiang area of China is taken as a test ore sample, and the fixed carbon content of the ore sample is about 6.70%. The ore sample is divided into two parts averagely, one part of ore sample is subjected to graphite ore floatation by adopting a traditional process floatation agent (diesel oil and loose oil), rough concentration concentrate and rough concentration tailings are obtained by 1 time rough grinding and rough concentration concentrate is obtained by 8 times regrinding and 9 times fine concentration, scavenging ore concentrate and tailings are obtained by 1 time scavenging, and a certain amount of floatation agent is added in rough concentration, concentration and scavenging operations; the other part of ore sample adopts a collector 1 and a collector 2 as flotation agents, roughing concentrate and roughing tailings are obtained through 1 time of rough grinding, concentrate is obtained through 8 times of regrinding and 9 times of concentration of the roughing concentrate, scavenging concentrate and tailings are obtained through 1 time of scavenging, the collector 1 is used in roughing and scavenging operations, the collector 2 is used in the concentrating operations, but the agent dosage of each operation is the same as the flotation agent dosage of the traditional process, and meanwhile the granularity of each section of ore grinding products is equivalent to that of the traditional process. The test results are shown in tables 2 and 3.
Table 2 test results of flotation reagents using conventional techniques
| Product name | Yield, percent | Fixed carbon, percent | Recovery rate, percent |
| Concentrate | 6.93 | 80.00 | 80.82 |
| Mineral in scavenging | 3.43 | 1.01 | 0.51 |
| Fine 1 middling ore | 5.89 | 1.11 | 0.95 |
| Fine 2 middling | 4.17 | 2.52 | 1.53 |
| Fine 3 middling | 2.88 | 2.56 | 1.07 |
| Fine 4 middling | 2.14 | 2.84 | 0.89 |
| Fine 5 middling | 1.31 | 5.00 | 0.96 |
| Fine 6 middling | 0.91 | 11.14 | 1.48 |
| Fine 7 middling ore | 0.38 | 20.81 | 1.16 |
| Fine 8 middling | 0.20 | 40.36 | 1.18 |
| Fine 9 middling | 0.11 | 57.89 | 0.93 |
| Tailings | 71.64 | 0.82 | 8.53 |
| Raw ore | 100.00 | 6.86 | 100.00 |
Table 3 test results with collectors 1 and 2
The final concentrate obtained by flotation with the flotation agent of the traditional process has the fixed carbon content of only 80 percent (at this time, the grade is too low and does not meet the general standard of >90 percent of the existing product, the large scale rate representation is meaningless), the flotation agent of the invention has the final fixed carbon content of 94.48 percent according to the product standard by adopting the same sorting procedure, the large scale (+0.15mm) rate is up to 12 percent, the 325 mesh content is 7.17 percent, the final fixed carbon rate of the final concentrate is about 15 percent and the 325 mesh content is about 18 percent after sorting the raw ore with the fixed carbon content of about 13.5 percent in the same ore area, the large scale rate of 12 percent and the 325 mesh content is 7.17 percent can be realized under the condition that the fixed carbon of the raw ore is reduced by nearly half, the selectivity is good, the grade is improved rapidly and the large scale is protected advantageously, and the large scale rate of the graphite ore concentrate product of the same ore area is always positively correlated with the original fixed carbon according to the prior art, the grade of the raw ore is reduced, the corresponding grade of the large scale is better, the scale is better, and the number of grinding times is better, and the scale is better.
Example six, comparison of odor of pharmaceutical Agents
In order to solve the problem of large pungent smell of the medicaments used under the current technical conditions, the graphite ore flotation medicament provided by the invention has great advantages in the safety and environment-friendly index of volatile organic compound content (g/kg), and the pungent smell is far lower than that of the medicaments such as the existing diesel oil, pinitol oil and the like. The VOC values of collector 1, collector 2, diesel oil and pine oil, as determined by the same VOC value test method, are shown in table 4.
TABLE 4VOC measurement results
As is apparent from table 4, both collector 1 and collector 2 prepared according to the present invention are far lower than VOC values of conventional agents such as diesel oil, pinitol, etc., which also demonstrates the reduction of the pungent odor.
Conclusion:
the invention discloses a graphite ore flotation reagent and a preparation method thereof, and the beneficial effects are as follows:
(1) The main component of the graphite ore flotation agent is animal hair with micro-particles, the proportion reaches 60-75 parts, and the proportion of diesel oil and foaming agent in the traditional agent combination is greatly reduced; meanwhile, animal hair is adopted, so that the high-value utilization of solid waste resources is realized, and the sorting enrichment ratio is improved through the characteristics of the animal hair, so that the graphite beneficiation efficiency and quality are improved;
(2) The graphite ore flotation reagent is equivalent to the traditional reagent in terms of using ton consumption, and meanwhile, the raw material sources are wider and the price is lower, so that the use cost of the reagent is greatly reduced;
(3) The water solubility of diesel oil and foaming agent components in the graphite ore flotation agent is greatly improved, and the consumption of the diesel oil and the foaming agent is reduced, so that the generation of irritant gas is reduced from the source, and the environment is more friendly;
(4) The preparation method of the graphite ore flotation reagent is simple to operate and low in production cost.
Claims (9)
1. A graphite ore flotation reagent, the flotation reagent comprising: animal hair, surfactant, diesel and frother, the flotation agent comprising by weight: 60-75 parts of animal hair, 10-15 parts of surfactant, 5-10 parts of diesel oil and 5-10 parts of foaming agent.
2. The flotation reagent according to claim 1, wherein the animal hair has a particle size of 0.001 to 1mm.
3. The flotation reagent according to claim 1, wherein the animal hair is selected from animal hair located proximate to animal fur.
4. The flotation reagent according to claim 1, wherein the animal hair is replaced in whole or in part with an animal hair analogue; the animal hair analog comprises: triglycerides, fatty acids, phospholipids and esterified cholesterol.
5. The flotation reagent according to claim 1, wherein the surfactant is one or more of alkyl sulfonate, lauryl sulfate, alkylbenzene sulfonate, fatty alcohol polyoxyethylene (3) ether.
6. The flotation reagent according to claim 1, wherein the frothing agent is one or more of BK201, BK204, BC, MIBC, pinitol oil.
7. A method of preparing the flotation reagent of any one of claims 1 to 6, wherein the method of preparing comprises: step one, placing a surfactant into water, dissolving and standing; step two, adding diesel oil and a foaming agent into the solution in the step one, uniformly mixing, and standing; and thirdly, adding animal hair into the mixed solution in the second step, stirring, standing, extracting the upper suspension, transferring to another container, and sealing and preserving to obtain the flotation reagent.
8. The method of preparing according to claim 7, characterized in that the flotation agent comprises, by weight: 60-75 parts of animal hair, 10-15 parts of surfactant, 5-10 parts of diesel oil and 5-10 parts of foaming agent.
9. The method of claim 7, wherein the mass fraction of water in the flotation reagent is between 10% and 30%.
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