CN111001496B - Collophanite flotation collector prepared from vegetable oil fatty acid - Google Patents
Collophanite flotation collector prepared from vegetable oil fatty acid Download PDFInfo
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- CN111001496B CN111001496B CN201911407005.5A CN201911407005A CN111001496B CN 111001496 B CN111001496 B CN 111001496B CN 201911407005 A CN201911407005 A CN 201911407005A CN 111001496 B CN111001496 B CN 111001496B
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- fatty acid
- oil fatty
- vegetable oil
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- collophanite
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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
- B03D1/018—Mixtures of inorganic and organic compounds
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
Abstract
The invention discloses a collophanite flotation collector prepared from vegetable oil fatty acid, and relates to the technical field of collophanite flotation reagents. Vegetable oil fatty acid is taken as a raw material, and low-melting vegetable oil fatty acid a and high-melting vegetable oil fatty acid b are prepared after rectification; saponifying the obtained fatty acid a and fatty acid b to obtain fatty acid soap; and mixing the fatty acid soap obtained by saponification with a surfactant to prepare the collophanite positive and negative flotation collector. The formula of the collecting agent can obviously enhance the selectivity and the collecting property of the vegetable oil fatty acid soap in the positive and negative floatation of the collophanite, so that the floatation capability of the collecting agent obtained from fatty acid products with different melting ranges is obviously superior to that of the collecting agent obtained from fatty acid raw materials before rectification.
Description
Technical Field
The invention relates to the technical field of reagents for collophanite flotation, in particular to a collophanite flotation collector prepared from vegetable oil fatty acid.
Background
The collophanite sorting method mainly comprises flotation, and the flotation needs various reagents, such as a collecting agent, an inhibitor, a foaming agent, a pH regulator and the like. The collector is the most critical reagent, and the quality of the performance of the collector determines the quality of the flotation effect. Collophanite flotation usually adopts carboxylic acid soaps such as animal and vegetable oil fatty acid soaps, tall oil soaps and oxidized paraffin soaps as collecting agents. However, fatty acid soaps from different raw material sources have different flotation effects due to different carbon chain lengths, carbon chain types, saturation and other physicochemical indexes of the fatty acids contained in the fatty acid soaps.
At present, naturally-generated fatty acid and fatty acid synthesized by chemical means are usually a mixture of various fatty acids, and the flotation effect is limited by the raw material itself after reaching a certain degree, so that the flotation effect is difficult to be improved greatly. In comparison, a single pure fatty acid is more effective for the collector, but it is difficult to obtain and expensive. Therefore, different fatty acids are separated by means of manual intervention, and one or more fatty acids are enriched for a certain flotation system, so that the mineral separation and the full utilization of fatty acid resources are facilitated.
Disclosure of Invention
The invention aims to provide a collophanite flotation collector prepared from vegetable oil fatty acid, which is prepared by utilizing different melting range fatty acid products obtained by rectifying vegetable oil fatty acid.
The invention adopts the following technical scheme: a collophanite flotation collector prepared from vegetable oil fatty acid, which is characterized in that: the method comprises the following steps of taking an alkalization reaction product which is obtained by rectifying and extracting vegetable oil fatty acid and takes vegetable oil fatty acid a with a melting range of-10-30 ℃ as a main component as a positive flotation collector product, wherein the weight percentage of each preparation raw material in the collector is as follows: 10 to 50 percent of vegetable oil fatty acid a, 0.5 to 10 percent of sodium fatty acid methyl ester sulfonate, 1 to 15 percent of polyethylene glycol ether and the balance of water.
The invention also relates to a collophanite flotation collector prepared from vegetable oil fatty acid, which is characterized in that: the method comprises the following steps of taking an alkalization reaction product which takes vegetable oil fatty acid b with the melting range of 35-60 ℃ obtained after vegetable oil fatty acid is rectified and extracted as a main component as a reverse flotation collector product, wherein the weight percentage of each preparation raw material in the collector is as follows: 10 to 50 percent of vegetable oil fatty acid b, 1 to 5 percent of 16-carbon alkyl sodium sulfonate, 1 to 10 percent of polyethylene glycol ether and the balance of water.
The further technical scheme is that the vegetable oil fatty acid used for rectification and fractionation is one or a mixture of more of soybean oil fatty acid, corn oil fatty acid, peanut oil fatty acid, rapeseed oil fatty acid, rice bran oil fatty acid and sunflower seed oil fatty acid.
Soybean oil, corn oil, peanut oil and rapeseed oil are used as raw materials for rectification and fractionation, and the high-melting-point fatty acid in the vegetable oil fatty acids is mainly palmitic acid with 16 carbons, while the low-melting-point fatty acid is mainly unsaturated acid with 18 carbons. Since the boiling point of the 16-carbon fatty acid is significantly lower than that of the 18-carbon unsaturated fatty acid, the 16-carbon fatty acid having a high melting point and the 18-carbon unsaturated fatty acid having a low melting point can be effectively separated by a fractionation method. And because several kinds of vegetable oil have similar fatty acid compositions, the positive and negative flotation collector raw material fatty acid with equivalent flotation performance can be obtained under the relatively similar fractionation conditions (270-300 ℃ and 0.2-0.9 MPa of vacuum degree).
Compared with the prior art, the invention has the beneficial effects that: the invention takes vegetable oil fatty acid as raw material, and the low melting point vegetable oil fatty acid a and the high melting point vegetable oil fatty acid b are prepared after rectification; saponifying the obtained fatty acid a and fatty acid b to obtain fatty acid soap; and mixing the fatty acid soap obtained by saponification with a surfactant to prepare the collophanite positive and negative flotation collector.
The mixed fatty acid is separated by adopting a rectification fractionation method, and the high-melting-point fatty acid obtained by separation is suitable for reverse flotation of the collophanite, while the low-melting-point fatty acid is suitable for direct flotation of the collophanite. Meanwhile, different assistants are respectively added into different fatty acid soaps obtained by fractionation, so that the solubility and the dispersibility of the collecting agent in water and the application performance of ore dressing can be obviously improved, and the collophanite positive and reverse flotation collecting agent with excellent performance is further prepared. The rectification fractionation of the vegetable oil fatty acid has the advantages of simple operation, low investment, high fractionation efficiency, light product color and small smell, and can effectively separate the fatty acid with low melting point and high melting point.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the examples, all percentages are by mass unless otherwise specified.
Example 1
Adding vegetable oil fatty acid a with the melting range of 5-17 ℃, 74.4% of water and 2.9% of sodium hydroxide which are obtained by rectification and account for 20% of the total weight of the collecting agent into a reaction kettle, reacting at 80 ℃ for 1h, cooling the reactant to 60 ℃, adding fatty acid methyl ester sodium sulfonate accounting for 1% of the total weight of the collecting agent and 1.7% of polyethylene glycol ether, continuously stirring for 30min, and cooling to room temperature to obtain the finished product of the positive flotation collecting agent I.
Example 2
Adding vegetable oil fatty acid a with the melting range of 7-25 ℃, 62.3% of water and 4.3% of sodium hydroxide which are obtained by rectification and account for 30% of the total weight of the collecting agent into a reaction kettle, reacting for 1 hour at 80 ℃, cooling the reactant to 60 ℃, adding fatty acid methyl ester sodium sulfonate accounting for 1.3% of the total weight of the collecting agent and 2.1% of polyethylene glycol ether, continuously stirring for 30min, and cooling to room temperature to obtain the finished product of the positive flotation collecting agent II.
Example 3
Adding distilled vegetable oil fatty acid a with the melting range of 10-26 ℃, 68.65% of water and 3.58% of sodium hydroxide which account for 25% of the total weight of the collecting agent into a reaction kettle, reacting at 80 ℃ for 1h, cooling the reactant to 60 ℃, adding fatty acid methyl ester sodium sulfonate accounting for 1.1% of the total weight of the collecting agent and 1.67% of polyethylene glycol ether, continuously stirring for 30min, and cooling to room temperature to obtain the finished product positive flotation collecting agent III.
Example 4
Adding vegetable oil fatty acid b with melting range of 38-59 ℃, water with melting range of 48.3% and sodium hydroxide with melting range of 6% which are obtained by rectification and account for 40% of the total weight of the collecting agent into a reaction kettle, reacting for 1h at 80 ℃, cooling the reactant to 60 ℃, adding sodium hexadecylsulfonate which accounts for 0.7% of the total weight of the collecting agent and polyethylene glycol ether with melting range of 5% into the reaction kettle, continuously stirring for 30min, and cooling to room temperature to obtain the finished product reverse flotation collecting agent IV.
Example 5
Adding vegetable oil fatty acid b with the melting range of 28-61 ℃, water with the melting range of 37% and sodium hydroxide with the melting range of 7.5% which are obtained by rectification and account for 50% of the total weight of the collecting agent into a reaction kettle, reacting for 1 hour at the temperature of 80 ℃, cooling the reactant to 60 ℃, adding sodium hexadecylsulfonate which accounts for 1% of the total weight of the collecting agent and polyethylene glycol ether with the melting range of 4.5% of the total weight of the collecting agent, continuing stirring for 30 minutes, and cooling to the room temperature to obtain the finished product reverse flotation collecting agent V.
Example 6
Adding vegetable oil fatty acid b with the melting range of 28-61 ℃, water with the melting range of 68.05% and sodium hydroxide with the melting range of 3.75% which are obtained by rectification and account for 25% of the total weight of the collecting agent into a reaction kettle, reacting for 1 hour at the temperature of 80 ℃, cooling the reactant to 60 ℃, adding sodium hexadecylsulfonate accounting for 0.5% of the total weight of the collecting agent and polyethylene glycol ether accounting for 2.7% of the total weight of the collecting agent, continuously stirring for 30 minutes, and cooling to the room temperature to obtain the finished product reverse flotation collecting agent VI.
Example 7
(1) Direct flotation experiment
Selecting some mixed collophanite from Yunnan, raw ore P2O5Collophanite with 18.01% content and 2.79% MgO content is selected according to 650 g/ton of medicament dosage (referring to the content of other substances except water in the collecting agent) to carry out direct flotation operation, and meanwhile, a collecting agent prepared by correspondingly not rectifying and separating vegetable oil fatty acid raw materials under the same condition is adopted to carry out a comparative experiment, and specific experimental indexes are shown in Table 1.
TABLE 1 comparative experimental results of direct flotation
It can be seen from table 1 that compared with the raw fatty acid soap which is not rectified, the collector of the invention has strong collecting capability and better dissolution and dispersion properties under the same chemical system. The collecting ability and the practicability of the collecting agent are better, and the collecting agent has higher application value.
(2) Reverse flotation experiment
Selecting some carbonate collophanite from Yunnan province, raw ore P2O5Collophanite with 22.25% content and 6.21% MgO content is treated with the collector of examples 4-6 according to 550 g/ton agent dosage (referring to the content of other substances except water in the collector), and the collector prepared under the same conditions without fractionation of vegetable oil fatty acid raw material by rectification is used for comparative experiments, and the specific experimental indexes are shown in Table 2.
TABLE 2 comparative reverse flotation test results
At present, the domestic requirement for preparing the wet-process phosphate collophanite flotation concentrate is P2O5The grade is more than 28.5 percent, the MgO grade is less than 1 percent, and the table 2 shows that compared with the collecting agent prepared by raw fatty acid soap without rectification, the collecting agent provided by the invention has higher grade of flotation concentrate under the same chemical system, and the MgO grade in the concentrate can reach the requirement of less than 1 percent, so that the collecting agent has higher MgO removal effect. The collecting ability and the practicability of the collecting agent are better, and the collecting agent has higher application value.
While the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the disclosure. More specifically, various variations and modifications in the composition or arrangement are possible within the scope of the disclosure and claims herein. In addition to variations and modifications in the composition or arrangement, other uses will also be apparent to those skilled in the art.
Claims (1)
1. A collophanite flotation collector prepared from vegetable oil fatty acid, which is characterized in that: the method comprises the following steps of taking an alkalization reaction product which is obtained by rectifying and extracting vegetable oil fatty acid and takes vegetable oil fatty acid a with the melting range of 5-26 ℃ as a main component as a positive flotation collector product, wherein the weight percentage of each preparation raw material in the collector is as follows: 20 to 30 percent of vegetable oil fatty acid a, 2.9 to 4.3 percent of sodium hydroxide, 1 to 1.3 percent of fatty acid methyl ester sodium sulfonate, 1.67 to 2.1 percent of polyglycol ether and the balance of water; the method comprises the following steps of taking an alkalization reaction product which takes vegetable oil fatty acid b with a melting range of 28-61 ℃ obtained after vegetable oil fatty acid is rectified and extracted as a main component as a reverse flotation collector product, wherein the weight percentage of each preparation raw material in the collector is as follows: 25 to 50 percent of vegetable oil fatty acid b, 3.75 to 7.5 percent of sodium hydroxide, 0.5 to 1 percent of sodium 16-alkyl sulfonate, 2.7 to 5 percent of polyglycol ether and the balance of water;
the vegetable oil fatty acid used for rectification and fractionation is one or a mixture of more of soybean oil fatty acid, corn oil fatty acid, peanut oil fatty acid, rapeseed oil fatty acid, rice bran oil fatty acid and sunflower seed oil fatty acid.
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| CN111001496B true CN111001496B (en) | 2022-04-12 |
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Citations (5)
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| CN103056036A (en) * | 2013-01-25 | 2013-04-24 | 中国地质科学院矿产综合利用研究所 | Collophanite normal-temperature direct flotation collecting agent and preparation method thereof |
| CN104668102A (en) * | 2015-03-10 | 2015-06-03 | 云南磷化集团有限公司 | Obverse flotation collecting agent for low temperature-resistant collophanite and preparation method thereof |
| US9255239B1 (en) * | 2014-12-30 | 2016-02-09 | Ivanhoe Industries, Inc. | Formulation for corn oil recovery and method of use thereof |
| CN106269282A (en) * | 2016-08-18 | 2017-01-04 | 云南磷化集团有限公司 | A kind of Collophane anti-floatation collector and preparation method thereof |
| CN107930857A (en) * | 2017-10-20 | 2018-04-20 | 湖北富邦科技股份有限公司 | A kind of apatite direct flotation collecting agent and preparation method thereof |
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2019
- 2019-12-31 CN CN201911407005.5A patent/CN111001496B/en active Active
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| CN103056036A (en) * | 2013-01-25 | 2013-04-24 | 中国地质科学院矿产综合利用研究所 | Collophanite normal-temperature direct flotation collecting agent and preparation method thereof |
| US9255239B1 (en) * | 2014-12-30 | 2016-02-09 | Ivanhoe Industries, Inc. | Formulation for corn oil recovery and method of use thereof |
| CN104668102A (en) * | 2015-03-10 | 2015-06-03 | 云南磷化集团有限公司 | Obverse flotation collecting agent for low temperature-resistant collophanite and preparation method thereof |
| CN106269282A (en) * | 2016-08-18 | 2017-01-04 | 云南磷化集团有限公司 | A kind of Collophane anti-floatation collector and preparation method thereof |
| CN107930857A (en) * | 2017-10-20 | 2018-04-20 | 湖北富邦科技股份有限公司 | A kind of apatite direct flotation collecting agent and preparation method thereof |
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