CN109550598B - A kind of application of oxyl propyl thiocarbamide in metallic ore flotation - Google Patents
A kind of application of oxyl propyl thiocarbamide in metallic ore flotation Download PDFInfo
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- CN109550598B CN109550598B CN201811394486.6A CN201811394486A CN109550598B CN 109550598 B CN109550598 B CN 109550598B CN 201811394486 A CN201811394486 A CN 201811394486A CN 109550598 B CN109550598 B CN 109550598B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/006—Hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—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
- B03D2201/02—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
-
- 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
- B03D2203/025—Precious metal ores
Abstract
The invention belongs to mineral floating field, a kind of application of oxyl propyl thiocarbamide in metallic ore flotation is specifically disclosed；Oxyl propyl thiourea is used as flotation collector flotation recovery valuable metal mineral from copper, lead, molybdenum, gold or silver ore.Relative to solid rhenocure CA and alkyl thiocarbamide collecting agent, it is liquid under oxyl propyl thiocarbamide collecting agent room temperature, it can be well dispersed in ore pulp under stiring, be effectively improved floating and enriching and the recycling of copper, lead, molybdenum, silver or gold mineral, significantly improve the valuable metal mineral floating rate of recovery.
Description
Technical field
The present invention relates to metal ore dressing fields, and in particular to a kind of oxyl propyl thiocarbamide collecting agent and its floating in metallic ore
The application chosen.
Background technique
Thiourea derivative is in thiocarbamide molecule NH2- C (=S)-NH2On the basis of, it introduces various groups and replaces H atoms and shape
At compound.Because thiourea derivative contains active atomic sulphur or nitrogen, so that it is in agricultural, medicine, organic synthesis, mineral floating
Etc. all have a wide range of applications.
Alkyl thiocarbamide collecting agent currently used for mineral floating mainly have rhenocure CA (see structural formula a,
S.M.Bulatovic, Handbook of Flotation Reagents, Elsevier, 2007), dialkyl thiourea and alkyl
Thiocarbamide (designs the Changsha: Zhongnan Polytechnic Univ see structural formula b and c, Wang Dianzuo, Lin Qiang, Jiang Yuren ore dressing and metallurgical agent molecule
Publishing house, 1996).Rhenocure CA can be used as the selective floation collecting agent of copper or lead minerals, but it is solid-state, and difficulty is scattered in
In ore pulp, when flotation is commonly incorporated into ball mill or is dissolved in be used in toluene or supplying phenol black powder, and which limit rhenocure CAs
Application or using when need to be added toxic solvent.Dialkyl thiourea and alkyl thiocarbamide are effectively catching for copper, lead or gold mineral
Agent is received, but it is also solid-state, it is also difficult to disperse very well in ore pulp, Gu rare dialkyl thiourea or the collecting agent industry of alkyl thiocarbamide
The report of application.
Structural formula a:N, N '-thiambutosine
Structural formula b:N, N '-dialkyl thiourea
Structural formula c:N- alkyl thiocarbamide
For this purpose, overcoming the defect of existing solid-state rhenocure CA or alkyl thiocarbamide collecting agent, the liquid being easily dispersed is developed
State alkyl Thiourea collecting agent, it is expected to improve copper, lead, molybdenum, in gold or silver ore valuable metal mineral FLOTATION SEPARATION efficiency, mention
High flotation recovery rate.
Summary of the invention
The purpose of the present invention is to provide a kind of application of novel oxyl propyl thiocarbamide in metalliferous mineral flotation, the sulphur
Carbamide derivative can effectively improve the enrichment and recovery efficiency of valuable metal mineral.
A kind of application of oxyl propyl thiocarbamide in metallic ore flotation, will have the oxyl propylthio of formula (I) structure
Urea is used as collecting agent, the flotation for metallic ore；
R1、R2It is alone R4OCH2CH2CH2Or C1-C18Alkyl；R3For R4OCH2CH2CH2-、C1-C18Alkyl or H；
R1、R2、R3In at least one substituent group be R4OCH2CH2CH2-；
The R4For C1-C18Alkyl.
The research of the invention finds that being in liquid under the oxyl propyl thiocarbamide room temperature of the structure.The collecting agent is in ore pulp
Dispersion effect it is excellent, be used for mineral floating facilitate promoted flotation separative efficiency, improve flotation recovery rate.
Preferably, the R1、R2、R3In, one or two substituent group is R4OCH2CH2CH2-。
Work as R1、R2、R3In, a substituent group is R4OCH2CH2CH2, it is preferable that R1For R4OCH2CH2CH2, R2、R3For C1
~C18Alkyl；Alternatively, R1For R4OCH2CH2CH2, R2For C1~C18Alkyl, R3For hydrogen；Alternatively, R1For C1~C18Hydrocarbon
Base, R2For R4OCH2CH2CH2, R3For hydrogen.Especially R1For R4OCH2CH2CH2, R2、R3For C1~C18Alkyl when collecting performance
It can be more excellent.
As the R1、R2、R3Two substituent groups are R4OCH2CH2CH2-；Preferably, R1、R2For R4OCH2CH2CH2-；R3For
Hydrogen.The study found that the oxyl propyl thiocarbamide of the preferred structure can show more preferably collecting performance, example as collecting agent
Such as, there is higher collecting efficiency, the grade of the rate of recovery and concentrate.
In the present invention, R1~R4In be not selected from R4OCH2CH2CH2Or the substituent group of H is preferably C1-C18Alkyl.Described
Alkyl is preferably C2-C12Alkyl, C6-C12Aryl, C5-C12Five yuan or hexa-atomic cyclic hydrocarbon radical；Further preferably second
Base, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl or iso-octyl.
Preferably, R4For ethyl, propyl, isopropyl, butyl or hexyl.
Still more preferably, R1、R2、R3Independently of each other.R1Preferably ethyl, propyl, isopropyl, butyl, isobutyl group, penta
Base, isopentyl, n-hexyl, n-octyl, iso-octyl, ethoxycarbonyl propyl, propoxypropyl, isopropoxide propyl, butoxypropyl
Or hexyloxy propyl.R2Preferably ethyl, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl,
Iso-octyl, ethoxycarbonyl propyl, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl.R3Preferably hydrogen,
Methyl, ethyl, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl, iso-octyl, ethoxy-c
Base, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl.And R1、R2、R3In at least one be ethoxy
Base propyl, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl.
The oxyl propyl thiocarbamide, which can be reacted conveniently by dithiocarbamate with organic amine, to be made.
Preferably, the metallic ore is at least one of Copper Ores, lead ore, molybdenum ore, gold ore or silver.
Application of the present invention, preferably includes following steps:
Step (1): copper-bearing mineral, lead minerals, molybdenum ore object, silver mineral or gold mineral at least one ore crushed, adjusted
Ore pulp is obtained after slurry；
Step (2): floating agent is added in the step (1) of Xiang Suoshu in ore pulp and carries out flotation, collection obtains flotation concentrate；
The floating agent includes the oxyl propyl thiocarbamide collecting agent；Using flotation to mine ore weight as calculating standard, institute
The dosage for the oxyl propyl thiocarbamide collecting agent stated is 2-200g/t, and flotation pH is 4-14.
Preferably, the dosage of the novel oxyl propyl thiocarbamide flotation collector is 5-50g/t.
Preferably, control pH values of pulp is 5-13 in floatation process, advanced optimize as 6-12；Still more preferably it is
8.5~9.
Beneficial effects of the present invention:
The oxyl propyl thiourea compound of liquid should be made flotation collector by the present invention, can effectively be divided in ore pulp
It dissipates, valuable mineral surface is adsorbed in either as singular molecular entities, to realize the hydrophobic enrichment of valuable mineral.Oxyl propyl thiocarbamide
Object is closed especially suitable for being enriched with from copper, lead, molybdenum, silver or gold ore and recycling valuable metal mineral, relative to existing solid-state
Rhenocure CA or alkyl thiocarbamide collecting agent have dosage low, high-efficient, can be obviously improved the recycling of valuable metal mineral floating
Rate.
Specific embodiment
Following embodiment is intended to further illustrate the content of present invention, rather than the restriction to protection scope of the present invention.
In embodiment unless otherwise specified all parts and percentages refer both to quality.To the flotation of mineral in embodiment
Journey is all conventional process, only substitutes existing flotation collector using such novel oxyl propyl thiocarbamide collecting agent.
1 chalcopyrite flotation of embodiment
Fixed thiocarbamide collecting agent (1~6 respectively in table 1) concentration is 1 × 10-5Mol/L, foaming agent methyl-isobutyl first
Alcohol (MIBC) concentration is 15mg/L, N2Air velocity is 200mL/min, pH values of pulp be 9.0, to partial size be -0.076mm~+
The chalcopyrite flotation 3min of 0.038mm, the flotation recovery rate of chalcopyrite are shown in Table 1.Its show with N, N '-rhenocure CA and N,
N '-dipropyl thiocarbamide is compared, and oxyl propyl thiocarbamide collecting agent obtains better chalcopyrite flotation recovery rate.
1 chalcopyrite flotation results of table
| Serial number | Thiocarbamide collecting agent | Chalcopyrite flotation recovery rate/% |
| 1 | N, N '-rhenocure CA | 85.4 |
| 2 | N, N '-dipropyl thiocarbamide | 86.2 |
| 3 | N- ethoxycarbonyl propyl-N '-isopropoxide propyl thiocarbamide | 94.5 |
| 4 | N- butoxypropyl-N '-n-propyl thiocarbamide | 93.6 |
| 5 | N- isopropoxide propyl-N '-butoxypropyl thiocarbamide | 97.3 |
| 6 | N- butoxypropyl-N ', N '-diethyl thiourea | 98.2 |
2 galena flotation of embodiment
Chalcopyrite in embodiment 1 is changed to galena, foaming agent MIBC concentration is changed to 20mg/L, remaining condition is constant,
The galena flotation recovery rate of acquisition is shown in Table 2, shows to compare with N, N '-rhenocure CA and N, N '-dipropyl thiocarbamide, hydrocarbon
Oxygroup propyl thiocarbamide collecting agent obtains better galena flotation recovery rate.
2 galena flotation results of table
Embodiment 3
Jiangxi Shangrao large size porphyry copper-molybdenum mine stone ore sample, raw ore cupric 0.47%, sulfur-bearing 2.4% contain Mo0.0053%,
Containing golden 0.13g/t.Experiment process: one roughing；Grinding fineness: -0.074mm accounts for 62.5%；Agentia condition: lime consumption 800
G ton, slurry pH 8.5 and its results are shown in Table 3 at remaining agentia condition.Table 3 the result shows that, with N, N '-rhenocure CA
And N, N '-dipropyl thiocarbamide are compared, oxyl propyl thiocarbamide collecting agent significantly improves the floating and enriching of copper, molybdenum, gold, obtains higher
Copper, molybdenum, gold flotation recovery rate.
3 Jiangxi Shangrao porphyry copper condition of table and its result
The present invention innovatively uses oxyl propyl thiocarbamide as the collecting agent of metallic ore flotation, shows excellent catch
Receive performance.
Claims (14)
1. a kind of application of oxyl propyl thiocarbamide in metallic ore flotation, which is characterized in that will have the hydrocarbon oxygen of formula (I) structure
Base propyl thiocarbamide is used as collecting agent, the flotation for metallic ore；
R1For R4OCH2CH2CH2Or C1-C18Alkyl；
R2For R4OCH2CH2CH2Or C1-C18Alkyl；
R3For R4OCH2CH2CH2-、C1-C18Alkyl or H；
R1、R2、R3In at least one substituent group be R4OCH2CH2CH2-；
The R4For C1-C18Alkyl.
2. application according to claim 1, which is characterized in that the R1、R2、R3In, two substituent groups therein are
R4OCH2CH2CH2-。
3. application according to claim 1, which is characterized in that R1、R2For R4OCH2CH2CH2-；R3For hydrogen.
4. application according to claim 1, which is characterized in that R1For R4OCH2CH2CH2, R2、R3For C1~C18Alkyl.
5. application according to claim 1, which is characterized in that R1For R4OCH2CH2CH2, R2For C1~C18Alkyl, R3For
Hydrogen；
Alternatively, R1For C1~C18Alkyl, R2For R4OCH2CH2CH2, R3For hydrogen.
6. application according to claim 1, which is characterized in that the alkyl is C2-C12Alkyl, C6-C12Aryl,
C5-C12Five yuan or hexa-atomic cyclic hydrocarbon radical.
7. application according to claim 6, which is characterized in that the alkyl is ethyl, propyl, isopropyl, butyl, different
Butyl, amyl, isopentyl, n-hexyl, n-octyl or iso-octyl.
8. application according to claim 1, which is characterized in that R4For ethyl, propyl, isopropyl, butyl or hexyl.
9. application according to claim 1, which is characterized in that the R1、R2、R3Independently of each other；
R1For ethyl, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl, iso-octyl, ethoxy-c
Base, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl；
R2For ethyl, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl, iso-octyl, ethoxy-c
Base, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl；
R3For hydrogen, methyl, ethyl, propyl, isopropyl, butyl, isobutyl group, amyl, isopentyl, n-hexyl, n-octyl, iso-octyl,
Ethoxycarbonyl propyl, propoxypropyl, isopropoxide propyl, butoxypropyl or hexyloxy propyl；
And R1、R2、R3In at least one for ethoxycarbonyl propyl, propoxypropyl, isopropoxide propyl, butoxypropyl or oneself
Oxygroup propyl.
10. application according to claim 1, which is characterized in that the metallic ore be Copper Ores, lead ore, molybdenum ore,
At least one of gold ore or silver ore.
11. described in any item applications according to claim 1~10, which comprises the following steps:
Step (1): copper-bearing mineral, lead minerals, molybdenum ore object, silver mineral or gold mineral at least one ore crushed, sized mixing after
Obtain ore pulp；
Step (2): floating agent is added in the step (1) of Xiang Suoshu in ore pulp and carries out flotation, collection obtains flotation concentrate；It is described
Floating agent include the oxyl propyl thiocarbamide；Using flotation to mine ore weight as calculating standard, the oxyl
The dosage of propyl thiocarbamide collecting agent is 2-200g/t.
12. application according to claim 11, which is characterized in that the pH for controlling the ore pulp of floatation process is 4-14.
13. application according to claim 12, which is characterized in that the pH for controlling the ore pulp of floatation process is 5-13.
14. application according to claim 12, which is characterized in that the pH for controlling the ore pulp of floatation process is 6-12.
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8800077A1 (en) * | 1985-05-31 | 1987-10-16 | Dow Chemical Co | Novel collectors for the selective froth flotation of sulfide minerals |
| US4929344A (en) * | 1989-05-01 | 1990-05-29 | American Cyanamid | Metals recovery by flotation |
| ZA918140B (en) * | 1991-10-11 | 1992-07-29 | American Cyanamid Co | Recovery of platinum group metals and gold by synergistic reaction between allylalkylthionocarbamates and dithiophosphates |
| AU2008214151B2 (en) * | 2007-02-07 | 2012-08-02 | Cytec Technology Corp. | Novel dithiocarbamate collectors and their use in the benefication of mineral ore bodies |
| CN101337205B (en) * | 2008-08-13 | 2011-04-20 | 中南大学 | Use of diester isosulfocyanate in sulphide ore floation and preparation method thereof |
| CN102516144B (en) * | 2011-11-02 | 2014-11-05 | 中南大学 | Thiourea compound and preparation thereof and application thereof to metal ore floatation |
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