CN111940149A - Flotation reagent - Google Patents
Flotation reagent Download PDFInfo
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- CN111940149A CN111940149A CN202010877801.1A CN202010877801A CN111940149A CN 111940149 A CN111940149 A CN 111940149A CN 202010877801 A CN202010877801 A CN 202010877801A CN 111940149 A CN111940149 A CN 111940149A
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention discloses a flotation reagent, which relates to the technical field of flotation reagents and comprises the following raw materials, by weight, 20-30 parts of water, 5-10 parts of mixed amine, 25-50 parts of hydrofluoric acid, 10-15 parts of ethion, 5-10 parts of ether alcohol, 5-10 parts of carboxylic acid, 5-10 parts of a pH value regulator, 5-10 parts of oxalic acid, 1-3 parts of polyacrylamide, 1-5 parts of xanthate and 1-5 parts of nigricans, wherein the mixed amine is prepared by mixing and proportioning hydrochloric acid and acetic acid, the preparation temperature is controlled to be 30-50 ℃, the pH value regulator is prepared by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate in a mixing ratio of 1: 1, and the xanthate is alkyl xanthate. This flotation reagent can make flotation reagent's flotation effect better, can adjust the mineral surface property nature, improves or reduces mineral floatability, makes ore pulp nature and foam stability more be favorable to the chemical preparation that the mineral was selected separately, also can use under lower pH value environment, can not lead to flotation reagent by the fast decomposition, has strengthened flotation reagent's usability.
Description
Technical Field
The invention relates to the technical field of flotation reagents, in particular to a flotation reagent.
Background
The flotation reagent is a chemical preparation which is used in the mineral flotation process and can adjust the surface property of minerals, improve or reduce the floatability of the minerals and enable the property of ore pulp and the stability of foam to be more beneficial to mineral separation, the flotation reagent is applied earliest in the mineral separation reagent, has the most varieties and obvious benefits, the types of the flotation reagents are many, about 8000 or more than hundred types which are commonly used and are generally divided into three types, namely a collecting agent, a foaming agent and an adjusting agent, and the collecting agent is an organic substance which can selectively act on the surface of the minerals to enable the mineral particles to be hydrophobic; the foaming agent mainly acts on a water-gas interface, so that air is dispersed into small bubbles in ore pulp, and the mineralization degree of the bubbles and the stability in the floating process can be improved.
Current flotation reagent is in the use, because of inside does not have better regulator, leads to in the environment use of lower pH value, leads to flotation reagent by quick decomposition, and stability is not high, is unfavorable for outside personnel to carry out the flotation operation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a flotation reagent, which solves the problems that the flotation reagent is rapidly decomposed, the stability is not high and the flotation operation is not facilitated for external personnel in the use process of a low pH value environment due to the fact that a better regulator is not arranged inside the reagent.
In order to achieve the purpose, the invention is realized by the following technical scheme: a flotation reagent comprises, by weight, 20-30 parts of water, 5-10 parts of mixed amine, 25-50 parts of hydrofluoric acid, 10-15 parts of ethion, 5-10 parts of ether alcohol, 5-10 parts of carboxylic acid, 5-10 parts of a pH value regulator, 5-10 parts of oxalic acid, 1-3 parts of polyacrylamide, 1-5 parts of xanthate and 1-5 parts of xanthate.
Preferably, the mixed amine is prepared by mixing hydrochloric acid and acetic acid, and the preparation temperature is controlled to be 30-50 ℃.
Preferably, the pH regulator is prepared by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate, and the mixing ratio is 1: 1.
Preferably, the xanthate is a hydrocarbyl xanthate which is formed by mixing, stirring and grinding alcohol, caustic alkali and carbon disulfide.
Preferably, the black powder is a dialkyl thiophosphate which is in a solid state when in use, and an external specified instrument is adopted to heat the black powder, wherein the heating temperature is controlled to be 30-50 ℃.
Preferably, the preparation method of the flotation reagent comprises the following steps:
s1, preparing the container and specifying the instrument: preparing a plurality of accommodating containers with the same size, cleaning the accommodating containers with distilled water before use, and preparing a stirring device and a timing instrument;
s2, primary mixing and stirring treatment: placing mixed amine and hydrofluoric acid into the same container, stirring the mixed amine and the hydrofluoric acid by using an external stirring device, controlling the flotation temperature within a specified temperature range, rotationally stirring for a certain time, and cleaning by using high-purity water;
s3, mixing and stirring again: placing water, ethionine, ether alcohol and carboxylic acid into the same container, stirring the water, the ethionine, the ether alcohol and the carboxylic acid by using a specified stirring device for a specified time, standing the mixture for a period of time, adding oxalic acid and polyacrylamide into the container, stirring the mixture, controlling the stirring temperature within a certain interval, and standing the mixture for a period of time after the stirring process is finished;
s4, mixing and stirring treatment: respectively putting the pH value regulator, the xanthate and the nigre into the container in the step S3, stirring by using an external stirring device for a certain time, timing by using an external designated timing instrument, and controlling the stirring time by using the timing instrument;
s5, stirring and sieving treatment: and (3) mixing and stirring the liquid in the step S2 and the liquid in the step S4, preheating the liquid by adopting an external instrument, controlling the temperature within a certain interval, standing for a period of time after the preparation is finished, screening the liquid by using an external screening device, and removing solid particles to obtain the specified flotation reagent.
Preferably, the alkali metal content in the step S2 can be reduced by 6PPM on the basis of the original proportion, the reduction range is controlled to be 20-23%, the rotating speed of the stirring device is controlled to be 300-400R/min, the temperature is controlled to be 30-50 ℃, and the stirring time is controlled to be 10-20 min.
Preferably, the rotation speed of the stirring device in the step S3 is controlled at 400-450R/min, the stirring time is controlled at 10-20min, the standing time is 2-5min, the temperature range is controlled at 20-30 ℃, the standing time is 5-10min again, the rotation speed of the stirring device in the step S4 is controlled at 200-260R/min, and the stirring time is controlled at 5-10 min.
Preferably, the rotation speed of the stirring device in the step S5 is controlled at 300-450R/min, the temperature is controlled at 20-40 ℃, and the mixture is kept stand for 10-15 min.
Advantageous effects
The invention provides a flotation reagent. Compared with the prior art, the method has the following beneficial effects:
1. the flotation reagent is prepared by placing mixed amine and hydrofluoric acid into the same container in step S2, stirring with an external stirring device, controlling the flotation temperature within a specified temperature range, rotating and stirring for a certain time, cleaning with high-purity water, placing water, ethion, ether alcohol and carboxylic acid into the same container in step S3, stirring with a specified stirring device for a specified time, standing for a period of time, adding oxalic acid and polyacrylamide into the container, stirring the processing to it, stirring temperature control is in certain interval, and after the stirring process was accomplished, the processing period of stewing once more can be effectual makes the flotation effect of flotation reagent better, can adjust the mineral surface property, improves or reduces mineral floatability, makes ore pulp property and foam stability more be favorable to the chemical preparation that mineral was selected separately.
2. This flotation reagent, through in step S4 respectively with the pH value regulator, inside xanthate and the container of jettison to in step S3, adopt outside agitating unit to stir the processing, stir for a certain duration, and adopt outside appointed timing instrument to carry out timing to it and handle, it is long to control the stirring through the timing instrument, the inside pH value of flotation reagent can effectively be adjusted to the pH value regulator, black and xanthate all have better stability, use under lower pH value environment, can not lead to the flotation reagent by the fast decomposition, flotation reagent' S usability has been strengthened.
Drawings
FIG. 1 is a schematic flow chart of the preparation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides three technical solutions:
example 1
A flotation reagent comprises, by weight, 20 parts of water, 5 parts of mixed amine, 25 parts of hydrofluoric acid, 10 parts of ethion, 5 parts of ether alcohol, 5 parts of carboxylic acid, 5 parts of a pH value regulator, 5 parts of oxalic acid, 1 part of polyacrylamide, 1 part of xanthate and 1 part of nigricans.
Furthermore, the mixed amine is prepared by mixing and proportioning hydrochloric acid and acetic acid, and the preparation temperature is controlled to be 30-50 ℃.
Further, the pH value regulator is formed by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate, and the mixing ratio is 1: 1.
Further, the xanthate is a hydrocarbyl xanthate and is formed by mixing, stirring and grinding alcohol, caustic alkali and carbon disulfide.
Furthermore, the black powder is a dialkyl thiophosphate, is in a solid state when in use, and needs to be heated by an external specified instrument, and the heating temperature is controlled at 30 ℃.
Further, the preparation method of the flotation reagent comprises the following steps:
s1, preparing the container and specifying the instrument: preparing a plurality of accommodating containers with the same size, cleaning the accommodating containers with distilled water before use, and preparing a stirring device and a timing instrument;
s2, primary mixing and stirring treatment: placing mixed amine and hydrofluoric acid into the same container, stirring with an external stirring device with rotation speed controlled at 300R/min, controlling the flotation temperature within 30 deg.C, rotating and stirring for 10min, and cleaning with high-purity water;
s3, mixing and stirring again: placing water, ethionam, ether alcohol and carboxylic acid into the same container, stirring the water, the ethionam, the ether alcohol and the carboxylic acid by adopting a specified stirring device with the rotating speed controlled at 400R/min for 10min, standing for 2min, adding oxalic acid and polyacrylamide into the container, stirring the oxalic acid and the polyacrylamide, controlling the stirring temperature at 20 ℃, and standing for 10min again after the stirring process is finished;
s4, mixing and stirring treatment: respectively putting the pH value regulator, the xanthate and the nigre into the container in the step S3, stirring for 5min by adopting an external stirring device with the rotating speed controlled at 200R/min, timing by adopting an external designated timing instrument, and controlling the stirring time by using the timing instrument;
s5, stirring and sieving treatment: and (3) mixing and stirring the liquid in the step S2 and the liquid in the step S4, controlling the stirring speed at 300R/min, preheating the liquid by adopting an external instrument, controlling the temperature at 20 ℃, standing for 10min after the preparation is finished, screening the liquid by using an external screening device, and removing solid particles to obtain the specified flotation reagent.
Further, in the step S2, the content of alkali metal can be reduced by 6PPM based on the original mixture ratio, and the reduction range is controlled to be 20%.
Example 2
A flotation reagent comprises, by weight, 25 parts of water, 7 parts of mixed amine, 27 parts of hydrofluoric acid, 13 parts of ethion, 7 parts of ether alcohol, 7 parts of carboxylic acid, 7 parts of a pH value regulator, 7 parts of oxalic acid, 2 parts of polyacrylamide, 3 parts of xanthate and 3 parts of xanthate.
Furthermore, the mixed amine is prepared by mixing and proportioning hydrochloric acid and acetic acid, and the preparation temperature is controlled to be 30-50 ℃.
Further, the pH value regulator is formed by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate, and the mixing ratio is 1: 1.
Further, the xanthate is a hydrocarbyl xanthate and is formed by mixing, stirring and grinding alcohol, caustic alkali and carbon disulfide.
Furthermore, the black powder is a dialkyl thiophosphate, is in a solid state when in use, and needs to be heated by an external specified instrument, and the heating temperature is controlled at 40 ℃.
Further, the preparation method of the flotation reagent comprises the following steps:
s1, preparing the container and specifying the instrument: preparing a plurality of accommodating containers with the same size, cleaning the accommodating containers with distilled water before use, and preparing a stirring device and a timing instrument;
s2, primary mixing and stirring treatment: placing mixed amine and hydrofluoric acid into the same container, stirring with an external stirring device with rotation speed controlled at 350R/min, controlling flotation temperature within 40 deg.C, rotating and stirring for 15min, and cleaning with high-purity water;
s3, mixing and stirring again: placing water, ethionam, ether alcohol and carboxylic acid into the same container, stirring the mixture by adopting a specified stirring device with the rotating speed controlled at 425R/min, stirring for 15min, standing for 3min, adding oxalic acid and polyacrylamide into the container, stirring the mixture, controlling the stirring temperature at 25 ℃, and standing for 15min again after the stirring process is finished;
s4, mixing and stirring treatment: respectively putting the pH value regulator, the xanthate and the nigre into the container in the step S3, stirring for 7min by adopting an external stirring device with the rotating speed controlled at 230R/min, timing by adopting an external designated timing instrument, and controlling the stirring time by using the timing instrument;
s5, stirring and sieving treatment: and (3) mixing and stirring the liquid in the step S2 and the liquid in the step S4, controlling the stirring speed at 375R/min, preheating the liquid by adopting an external instrument, controlling the temperature at 30 ℃, standing for 12min after the preparation is finished, screening the liquid by using an external screening device, and removing solid particles to obtain the specified flotation reagent.
Further, in the step S2, the content of alkali metal can be reduced by 6PPM based on the original mixture ratio, and the reduction range is controlled at 25%.
Example 3
A flotation reagent comprises, by weight, 30 parts of water, 10 parts of mixed amine, 50 parts of hydrofluoric acid, 15 parts of ethion, 10 parts of ether alcohol, 10 parts of carboxylic acid, 10 parts of a pH value regulator, 10 parts of oxalic acid, 3 parts of polyacrylamide, 5 parts of xanthate and 5 parts of xanthate.
Furthermore, the mixed amine is prepared by mixing and proportioning hydrochloric acid and acetic acid, and the preparation temperature is controlled at 50 ℃.
Further, the pH value regulator is formed by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate, and the mixing ratio is 1: 1.
Further, the xanthate is a hydrocarbyl xanthate and is formed by mixing, stirring and grinding alcohol, caustic alkali and carbon disulfide.
Furthermore, the black powder is a dialkyl thiophosphate, is in a solid state when in use, and needs to be heated by an external specified instrument, and the heating temperature is controlled at 50 ℃.
Further, the preparation method of the flotation reagent comprises the following steps:
s1, preparing the container and specifying the instrument: preparing a plurality of accommodating containers with the same size, cleaning the accommodating containers with distilled water before use, and preparing a stirring device and a timing instrument;
s2, primary mixing and stirring treatment: placing mixed amine and hydrofluoric acid into the same container, stirring with an external stirring device with rotation speed controlled at 400R/min, controlling the flotation temperature within 50 deg.C, rotating and stirring for 20min, and cleaning with high-purity water;
s3, mixing and stirring again: placing water, ethionam, ether alcohol and carboxylic acid into the same container, stirring the mixture by adopting a specified stirring device with the rotating speed controlled at 450R/min for 20min, standing for 5min, adding oxalic acid and polyacrylamide into the container, stirring the mixture, controlling the stirring temperature at 30 ℃, and standing for 20min after the stirring process is finished;
s4, mixing and stirring treatment: respectively putting a pH value regulator, xanthate and nigre into the container in the step S3, stirring for 10min by adopting an external stirring device with the rotating speed controlled at 260R/min, timing by adopting an external designated timing instrument, and controlling the stirring time by using the timing instrument;
s5, stirring and sieving treatment: and (3) mixing and stirring the liquid in the step S2 and the liquid in the step S4, controlling the stirring speed at 450R/min, preheating the liquid by adopting an external instrument, controlling the temperature at 40 ℃, standing for 15min after the preparation is finished, screening the liquid by using an external screening device, and removing solid particles to obtain the specified flotation reagent.
Further, in the step S2, the content of alkali metal can be reduced by 6PPM based on the original mixture ratio, and the reduction range is controlled at 30%.
Comparative test
The performance of the flotation reagent prepared according to the three examples is compared with that of the flotation reagent in the prior art in actual use, and a certain manufacturer performs the following tests:
correspondingly taking the flotation reagents prepared in the three embodiments and the flotation reagent appearing in the same market, taking four different containers, placing the sewage with the same internal mineral content into different containers, respectively putting different flotation reagents into the water after the placement is finished, and measuring by an external specified instrument to obtain the values of precipitated minerals, wherein the values are shown in the following table;
table of values for mineral precipitation
| Heat-insulating waterproof coating | Existing | Example 1 | Example 2 | Example 3 |
| Content value/%) | 20 | 33 | 47 | 26 |
From the data shown in the above table, it can be seen that the flotation reagents produced in the above three examples are superior to those produced in the prior art in terms of mineral separation, while the flotation reagents produced in the three examples are the best used in example 2.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The flotation reagent is characterized by comprising, by weight, 20-30 parts of water, 5-10 parts of mixed amine, 25-50 parts of hydrofluoric acid, 10-15 parts of ethion, 5-10 parts of ether alcohol, 5-10 parts of carboxylic acid, 5-10 parts of a pH value regulator, 5-10 parts of oxalic acid, 1-3 parts of polyacrylamide, 1-5 parts of xanthate and 1-5 parts of xanthate.
2. A flotation reagent according to claim 1, wherein: the mixed amine is prepared by mixing and proportioning hydrochloric acid and acetic acid, and the preparation temperature is controlled to be 30-50 ℃.
3. A flotation reagent according to claim 1, wherein: the pH value regulator is formed by mixing and stirring calcium oxide, sulfuric acid and sodium sulfate, and the mixing ratio is 1: 1.
4. A flotation reagent according to claim 1, wherein: the xanthate is a kind of alkyl xanthate and is produced through mixing alcohol, caustic alkali and carbon disulfide, stirring and grinding.
5. A flotation reagent according to claim 1, wherein: the black powder is a dialkyl thiophosphate, is in a solid state when in use, and needs to be heated by an external specified instrument, and the heating temperature is controlled to be 30-50 ℃.
6. A flotation reagent according to any one of claims 1 to 5, prepared by a process comprising the steps of:
s1, preparing the container and specifying the instrument: preparing a plurality of accommodating containers with the same size, cleaning the accommodating containers with distilled water before use, and preparing a stirring device and a timing instrument;
s2, primary mixing and stirring treatment: placing mixed amine and hydrofluoric acid into the same container, stirring the mixed amine and the hydrofluoric acid by using an external stirring device, controlling the flotation temperature within a specified temperature range, rotationally stirring for a certain time, and cleaning by using high-purity water;
s3, mixing and stirring again: placing water, ethionine, ether alcohol and carboxylic acid into the same container, stirring the water, the ethionine, the ether alcohol and the carboxylic acid by using a specified stirring device for a specified time, standing the mixture for a period of time, adding oxalic acid and polyacrylamide into the container, stirring the mixture, controlling the stirring temperature within a certain interval, and standing the mixture for a period of time after the stirring process is finished;
s4, mixing and stirring treatment: respectively putting the pH value regulator, the xanthate and the nigre into the container in the step S3, stirring by using an external stirring device for a certain time, timing by using an external designated timing instrument, and controlling the stirring time by using the timing instrument;
s5, stirring and sieving treatment: and (3) mixing and stirring the liquid in the step S2 and the liquid in the step S4, preheating the liquid by adopting an external instrument, controlling the temperature within a certain interval, standing for a period of time after the preparation is finished, screening the liquid by using an external screening device, and removing solid particles to obtain the specified flotation reagent.
7. A flotation reagent according to claim 6, wherein: in the step S2, the alkali metal content can be reduced by 6PPM on the basis of the original proportion, the reduction range is controlled to be 20-23%, the rotating speed of the stirring device is controlled to be 300-400R/min, the temperature is controlled to be 30-50 ℃, and the stirring time is controlled to be 10-20 min.
8. A flotation reagent according to claim 6, wherein: in the step S3, the rotating speed of the stirring device is controlled at 450R/min, the stirring time is controlled at 10-20min, the standing time is controlled at 2-5min, the temperature range is controlled at 20-30 ℃, the standing time is controlled at 5-10min, in the step S4, the rotating speed of the stirring device is controlled at 260R/min, and the stirring time is controlled at 5-10 min.
9. A flotation reagent according to claim 6, wherein: in the step S5, the rotating speed of the stirring device is controlled at 300-450R/min, the temperature is controlled at 20-40 ℃, and the mixture is kept stand for 10-15 min.
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| CN202010877801.1A CN111940149A (en) | 2020-08-27 | 2020-08-27 | Flotation reagent |
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| CN202010877801.1A CN111940149A (en) | 2020-08-27 | 2020-08-27 | Flotation reagent |
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2020
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| US4822483A (en) * | 1984-09-13 | 1989-04-18 | The Dow Chemical Company | Collector compositions for the froth flotation of mineral values |
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Application publication date: 20201117 |