CN110575910B - Novel environment-friendly mineral separation agent - Google Patents
Novel environment-friendly mineral separation agent Download PDFInfo
- Publication number
- CN110575910B CN110575910B CN201910865379.5A CN201910865379A CN110575910B CN 110575910 B CN110575910 B CN 110575910B CN 201910865379 A CN201910865379 A CN 201910865379A CN 110575910 B CN110575910 B CN 110575910B
- Authority
- CN
- China
- Prior art keywords
- parts
- beneficiation reagent
- novel environment
- oil
- friendly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
-
- 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
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- 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
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a novel environment-friendly beneficiation reagent which is composed of the following substances in parts by weight: 60-70 parts of nonpolar hydrocarbon oil, 10-15 parts of a foaming agent and 3-6 parts of an emulsifier; the non-polar hydrocarbon oil is one or a combination of more of aromatic hydrocarbon, olefin, isoparaffin, cycloparaffin and normal paraffin. The invention does not use natural ore dressing agents such as the pine oil, the camphor oil, the eucalyptus oil and the like, does not consume forest resources, and has the advantages of environmental protection, energy conservation and cost reduction; moreover, the beneficiation reagent provided by the technical scheme of the invention is simple in method and good in selectivity, the recovery rate of clean coal is more than 73.2%, the ash content is less than 8.9%, and the collecting performance is good.
Description
Technical Field
The invention relates to a beneficiation reagent, in particular to a novel environment-friendly beneficiation reagent.
Background
Flotation is one of the effective methods for purifying coal, and is a technology for separating minerals at a gas-liquid-solid three-phase interface, and the flotation of coal is based on the difference of surface properties of coal particles and minerals and uses air bubbles as a medium for separation. When the bubbles rise through the dilute coal water suspension, the coal particles with hydrophobic surface are enriched on the surface of the bubbles to form foam, and the foam rises along with the bubbles and is removed as concentrate. While mineral particles with hydrophilic surfaces remain in the flotation cell. In order to improve the separation effect, a foaming agent is required to be added, the foaming agent is an important flotation and beneficiation reagent, and whether a large amount of foams with moderate size and certain stability can be formed or not has a large influence on the flotation effect. The earliest frothers used in coal dressing were natural beneficiation chemicals such as pine oil, camphor oil, eucalyptus oil, and the like. Especially, pine oil is most widely used, and is mainly derived from wood. However, from an ecological and economic point of view, the acquisition of pine oil at the expense of forest resources is not in accordance with the strategy of sustainable development. Therefore, development of a cost-reduced and environmentally friendly beneficiation reagent is very necessary.
Disclosure of Invention
The invention aims to provide a novel environment-friendly beneficiation reagent aiming at the defects of the prior art.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: 60-70 parts of nonpolar hydrocarbon oil, 10-15 parts of a foaming agent and 3-6 parts of an emulsifier.
The novel environment-friendly beneficiation reagent comprises 65-70 parts of nonpolar hydrocarbon oil, 12-15 parts of a foaming agent and 5-6 parts of an emulsifier.
The novel environment-friendly beneficiation reagent is characterized in that the nonpolar hydrocarbon oil is one or a combination of a plurality of aromatic hydrocarbons, olefins, isoparaffins, cycloparaffins and normal paraffins.
According to the novel environment-friendly beneficiation reagent, the nonpolar hydrocarbon oil is a composition of aromatic hydrocarbon, olefin and normal alkane, coal is a very complex compound, the nonpolar hydrocarbon oil of the combined components has better effect than single nonpolar hydrocarbon oil, and has the best coal collecting performance for improving the performance of a flotation agent, and the weight and dosage ratio of the aromatic hydrocarbon, the olefin and the normal alkane is 1: 2: 3 the effect is good.
The foaming agent is one or a combination of several of sec-octanol, fusel or GF oil. Fusel is derived from high boiling point residual liquid in butanol production, the carbon chain is short, and the generated foam is fragile and has good selectivity. The combination of octanol, fusel and GF oil has better synergistic effect than single component.
The foaming agent is one or a combination of several of triethyloxybutane, methyl isobutyl carbinol and diethyl phthalate. The combination of the tri-acetoxybutane, methyl isobutyl carbinol and diethyl phthalate has better synergistic effect than that of a single component.
The novel environment-friendly beneficiation reagent is characterized in that the emulsifier is sodium dodecyl benzene sulfonate or sodium hexadecyl benzene sulfonate.
The novel environment-friendly beneficiation reagent is used for 1.0-1.5 kg/ton of coal.
Compared with the prior art, the beneficiation reagent has the following advantages: the invention does not use natural foaming agents such as the pine oil, the camphor oil, the eucalyptus oil and the like, does not consume forest resources, and has the advantages of environmental protection, energy conservation and cost reduction; moreover, the beneficiation reagent provided by the technical scheme of the invention is simple in method and good in selectivity, the recovery rate of clean coal is more than 73.2%, the ash content is less than 8.9%, and the collecting performance is good.
Detailed Description
For better understanding of the present invention, the present invention will be described in detail with reference to the following specific examples, but the present invention is not limited thereto.
Example 1:
a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is isoparaffin and cycloparaffin, and the weight and dosage ratio of the isoparaffin to the cycloparaffin is 1: 1, 60 parts in total; 10 parts of triethyl oxybutane serving as a foaming agent; the emulsifier is sodium dodecyl benzene sulfonate, 3 parts; the raw materials of the components in parts by weight are added into a stirring kettle and stirred for 1h, and then the mixture is kept stand for 30min to prepare the novel environment-friendly beneficiation reagent of the embodiment.
A common coke coal sample is selected as a flotation coal sample, and the flotation performance of the beneficiation reagent of the embodiment is measured according to GB/T4757-2001 coal dust (mud) laboratory unit flotation test method. The method comprises the following specific steps: accurately weighing 200g of coal sample to be selected, adding water to the flotation tank to a second marked line, starting and adjusting the flotation machine to enable the rotating speed of an impeller to reach a specified value at the maximum, stopping the machine, closing an air inlet valve, and discharging the water in the flotation tank; adding water into the flotation tank until the first marked line is reached, starting the flotation machine, adding 200g of coal sample into the tank, stirring until the coal sample is completely wetted, and adding water to enable the liquid level of the coal slurry to reach the second marked line; after stirring for 2min, adding the novel environment-friendly beneficiation reagent of the embodiment below the liquid level of the coal slurry, stirring for 10s, opening an air inlet valve, simultaneously starting to scrape bubbles, collecting concentrate foams into a special container along with the change of the foam thickness and the whole groove width, controlling the water replenishing speed to keep the liquid level of the ore slurry constant during the whole bubble scraping period, and flushing particles on the wall of a flotation groove into the ore slurry by using a wash bottle at the later stage of the bubble scraping; stopping foam scraping after 3min, closing an air inlet valve and a stirring motor, putting the tail coal into a special container, cleaning particles deposited at the lower part of the flotation tank into the tail coal container, collecting the particles adhered to a scraper blade, the lip edge of the flotation tank and the tank wall into a clean coal product, adding clean water into the flotation tank, and starting a flotation machine to stir and clean until the flotation tank is clean; and finally, respectively filtering, drying, weighing and testing ash content in the foam product and the ore pulp. And (5) measuring the recovery rate and ash content of clean coal.
The beneficiation reagent dosage of the embodiment is 1.0 kg/ton, the recovery rate of clean coal is 79.4%, and the ash content is 8.9%.
Example 2:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: 65 parts of non-polar hydrocarbon oil which is aromatic hydrocarbon; the foaming agent is methyl isobutyl carbinol, 12 parts; 5 parts of sodium dodecyl benzene sulfonate serving as an emulsifier; the raw materials of the components in parts by weight are added into a stirring kettle to be stirred for 2 hours and then are kept stand for 30min, so that the novel environment-friendly beneficiation reagent is prepared.
The beneficiation reagent dosage of the embodiment is 1.2 kg/ton, the recovery rate of clean coal is 73.2 percent, and the ash content is 8.2 percent.
Example 3:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is olefin, 70 parts; the foaming agent is secondary octanol, 15 parts; 6 parts of sodium dodecyl benzene sulfonate serving as an emulsifier; the raw materials of the components in parts by weight are added into a stirring kettle to be stirred for 1.5 hours and then are kept stand for 40min, so that the novel environment-friendly beneficiation reagent is prepared.
The beneficiation reagent dosage of the embodiment is 1.5 kg/ton, the recovery rate of clean coal is 80.1%, and the ash content is 8.1%.
Example 4:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is aromatic hydrocarbon and olefin, and the weight ratio of the aromatic hydrocarbon to the olefin is 1: 1, 65 parts in total; 10 parts of fusel serving as a foaming agent; the emulsifier is hexadecyl sodium benzene sulfonate, 3 parts; the raw materials of the components in parts by weight are added into a stirring kettle to be stirred for 2 hours and then are kept stand for 30min, so that the novel environment-friendly beneficiation reagent is prepared.
The beneficiation reagent dosage of the embodiment is 1.5 kg/ton, the recovery rate of clean coal is 82.6%, and the ash content is 7.9%.
Example 5:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is isoparaffin and cycloparaffin, and the weight and dosage ratio of the isoparaffin to the cycloparaffin is 1: 1, 60 parts in total; the foaming agent is a composition of triethyloxybutane, methyl isobutyl carbinol and diethyl phthalate, and the weight ratio of the triethyloxybutane to the methyl isobutyl carbinol to the diethyl phthalate is 1: 1: 1, 10 parts in total; the emulsifier is hexadecyl sodium benzene sulfonate, 3 parts; the raw materials of the components in parts by weight are added into a stirring kettle and stirred for 2 hours, and then the mixture is kept stand for 35min to prepare the novel environment-friendly beneficiation reagent.
The beneficiation reagent dosage of the embodiment is 1.5 kg/ton, the recovery rate of clean coal is 83.4%, and the ash content is 7.8%.
Example 6:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is a composition of aromatic hydrocarbon, olefin and normal alkane, and the weight and the dosage of the aromatic hydrocarbon, the olefin and the normal alkane are 1: 2: 3, 60 parts in total; the foaming agent is a composition of triethyloxybutane and methyl isobutyl carbinol, and the weight ratio of the triethyloxybutane to the methyl isobutyl carbinol is 1: 1, 15 parts in total; the emulsifier is sodium dodecyl benzene sulfonate, 3 parts; the raw materials of the components in parts by weight are added into a stirring kettle to be stirred for 2 hours and then are kept stand for 40min, so that the novel environment-friendly beneficiation reagent is prepared.
The beneficiation reagent dosage of the embodiment is 1.5 kg/ton, the recovery rate of clean coal is 82.7%, and the ash content is 7.4%.
Example 7:
the difference from the embodiment 1 is that a novel environment-friendly beneficiation reagent is composed of the following substances in parts by weight: the nonpolar hydrocarbon oil is a composition of aromatic hydrocarbon, olefin and normal alkane, and the weight and the dosage of the aromatic hydrocarbon, the olefin and the normal alkane are 1: 2: 3, 70 parts in total; the foaming agent is a composition of secondary octanol, fusel and GF oil, and the weight proportion of the secondary octanol, the fusel and the GF oil is 1: 1: 1, 15 parts in total; the emulsifier is hexadecyl sodium benzene sulfonate, 3 parts; the raw materials of the components in parts by weight are added into a stirring kettle and stirred for 1h, and then the mixture is kept stand for 35min to prepare the novel environment-friendly beneficiation reagent.
The beneficiation reagent dosage of the embodiment is 1.5 kg/ton, the recovery rate of clean coal is 83.7%, and the ash content is 6.8%.
In the above examples 1 to 7, in the experimental process, it can be observed that the beneficiation reagent of example 7 has fine foam, strong foam sustaining ability, stable foam, and easy defoaming of foam concentrate; the collecting capacity is strong; good selectivity, clean coal recovery rate of 83.7%, ash content of 6.8%, and best effect.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The novel environment-friendly beneficiation reagent is characterized by comprising the following substances in parts by weight: 65-70 parts of nonpolar hydrocarbon oil, 12-15 parts of a foaming agent and 5-6 parts of an emulsifier;
the nonpolar hydrocarbon oil is a composition of aromatic hydrocarbon, olefin and normal alkane, and the weight and the dosage of the aromatic hydrocarbon, the olefin and the normal alkane are 1: 2: 3.
2. the novel environment-friendly beneficiation reagent according to claim 1, wherein the foaming agent is one or a combination of sec-octanol, fusel or GF oil.
3. The novel environment-friendly beneficiation reagent according to claim 1, wherein the foaming agent is one or a combination of triethyloxybutane, methyl isobutyl carbinol and diethyl phthalate.
4. The novel environment-friendly beneficiation reagent according to claim 1, wherein the emulsifier is sodium dodecyl benzene sulfonate or sodium hexadecyl benzene sulfonate.
5. The novel environment-friendly beneficiation reagent according to claim 1, wherein the dosage of the beneficiation reagent is 1.0-1.5 kg/ton of coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865379.5A CN110575910B (en) | 2019-09-12 | 2019-09-12 | Novel environment-friendly mineral separation agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865379.5A CN110575910B (en) | 2019-09-12 | 2019-09-12 | Novel environment-friendly mineral separation agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110575910A CN110575910A (en) | 2019-12-17 |
| CN110575910B true CN110575910B (en) | 2020-08-11 |
Family
ID=68811902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910865379.5A Active CN110575910B (en) | 2019-09-12 | 2019-09-12 | Novel environment-friendly mineral separation agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110575910B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298979A (en) * | 2020-03-27 | 2020-06-19 | 云南铁峰矿业化工新技术有限公司 | Foaming agent |
| CN113171878A (en) * | 2021-04-26 | 2021-07-27 | 淮北市美丽新材料有限公司 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
| CN113814070B (en) * | 2021-09-28 | 2023-06-06 | 唐山市德丰机械设备有限公司 | Environment-friendly coal dressing flotation reagent and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106071A (en) * | 1985-08-14 | 1986-01-10 | 轻工业部日用化学工业科学研究所 | Oil-in-water emulsion used in flotation of coal slurry |
| CN105750092A (en) * | 2016-03-10 | 2016-07-13 | 徐州工程学院 | Novel coal preparation collecting agent and preparation method thereof |
| CN109731695A (en) * | 2019-03-22 | 2019-05-10 | 山东超美清洁能源有限公司 | A kind of sorting agent of energy conservation and environmental protection, clean and effective |
-
2019
- 2019-09-12 CN CN201910865379.5A patent/CN110575910B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110575910A (en) | 2019-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110575910B (en) | Novel environment-friendly mineral separation agent | |
| RU2709877C1 (en) | Method for flotation of coal, having low floatability | |
| CN110293005B (en) | Liquid-solid composite collecting agent for coal slime flotation and preparation method thereof | |
| CN102716814A (en) | Novel flotation column serial connection test system for improving flotation granularity upper limit | |
| CN103415497A (en) | Glycerides and fatty acid mixtures and methods of using same | |
| CN85106071A (en) | Oil-in-water emulsion used in flotation of coal slurry | |
| EA030500B1 (en) | Depressant for ore mineral flotation, composition and process for enriching a mineral | |
| US4756823A (en) | Particle separation | |
| CN105214853A (en) | A kind of brown coal floatation method | |
| CN111054525B (en) | Method for sorting high-ash-content fine-grain coal slime | |
| AU2009208154B2 (en) | Blended frother for producing low ash content clean coal through flotation | |
| CN104399595A (en) | High-ash difficult-to-float coal slime flotation technology | |
| CN111389597A (en) | A kind of low-rank coal flotation using polar mixture and flotation process | |
| CN105750092A (en) | Novel coal preparation collecting agent and preparation method thereof | |
| CN108940602B (en) | Collecting agent for flotation of weakly sticky coal slime and flotation method | |
| CN113926590A (en) | Flotation reagent and flotation method for separating feldspar from quartz | |
| CN111841897B (en) | A kind of using method of combined defoamer for amine flotation collector | |
| CA2077726A1 (en) | Recovery of petroleum from tar sands | |
| CN119797491B (en) | A device and method for oil-solid collaborative separation by cyclone coupling and coalescence | |
| CN206735964U (en) | New complete molten gas high pressure cyclone airfloat equipment | |
| CA1201223A (en) | Coal flotation reagents | |
| CN102716810B (en) | Foaming agent for flotation | |
| CN110563288A (en) | desanding viscosity reducer for treating tank bottom oil sludge and application | |
| CN107442293B (en) | A selective flocculation-reverse flotation ash reduction method for ultra-fine sub-bituminous coal | |
| CN109201341B (en) | Low-rank coal slime flotation collecting agent compounded with acid aldehyde ether and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |