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Collecting agent and preparation method and application thereof

A technology of collector and dithiocarbamate, which is applied in the field of metallurgy, can solve the problems of low selectivity and unfavorable recovery of associated precious metals, and achieve the effects of strong collection ability, good solid affinity and improved selectivity

Active Publication Date: 2015-09-02
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Collectors commonly used in copper sulfide ore flotation include: anionic collectors, such as dithiocarbamate, xanthate, dihydrocarbyl thiophosphate, etc., which have a strong collection capacity , the selectivity is low, often need to add a large amount of lime to suppress pyrite, so the use of this type of collector is not conducive to the recovery of associated precious metals; non-ionic ester collectors, such as dithiocarbamate, dithiocarbamate Alkyl thiocarbamate, etc., due to the good selectivity of this type of collector, its application in sulfide ore and copper ion activated sulfide mineral flotation has attracted more and more attention

Method used

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  • Collecting agent and preparation method and application thereof
  • Collecting agent and preparation method and application thereof
  • Collecting agent and preparation method and application thereof

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preparation example Construction

[0021] The preparation method of the collector described in the present invention is to mix the raw materials modified dithiocarbamate, sodium mercaptobenzothiazole, dodecyl mercaptan and fatty alcohol according to the formula ratio and then set the temperature at 15~35°C Under mechanical stirring for 10-30 minutes, a reddish-brown oily liquid was obtained, which was the target collector.

[0022] The application of the present invention is the application of the collector in the flotation of associated precious metal sulfide ore.

[0023] The associated precious metal sulfide ore is gold-bearing sulfide ore, copper-molybdenum sulfide ore or copper-lead-zinc sulfide ore.

[0024] The amount of the collector is 10-200 g / ton ore.

[0025] The collector is used under the condition of pulp temperature of 5-35°C.

[0026] Described collector is used for sulfide ore flotation and comprises the following specific steps:

[0027] A. Grinding the raw material sulfide ore until the p...

Embodiment 1

[0031] at 2m 3 Add 250 parts of ethoxycarbonyl diethyldithiocarbamate, 100 parts of sodium mercaptobenzothiazole 45% aqueous solution, 140 parts of dodecyl mercaptan, 50 parts of sec-butanol, 40 parts Pine alcohol oil, mechanically stirred at 15~35°C for 10~30min, the reddish-brown oily liquid obtained is a composite collector EMTA-1.

Embodiment 2

[0033] at 2m 3 Add 250 parts of butoxycarbonyl diethyldithiocarbamate, 100 parts of sodium mercaptobenzothiazole 45% aqueous solution, 140 parts of dodecyl mercaptan, 60 parts of methyl isobutyl carbinol respectively in the reaction kettle , 30 parts of terpineol oil, mechanically stirred at 15~35°C for 10~30min, and the reddish-brown oily liquid was obtained, which was another composite collector BMTA-1. (The time and temperature have a span and need to be accurate to specific values. The value of each example is a different value within the stated range)

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Abstract

The invention discloses a collecting agent preparation and application method. The collecting agent is prepared from modified dithiocarbamic acid, sodium mercaptobenzothiazole, lauryl mercaptan and fatty alcohol. A molecular formula of the sodium mercaptobenzothiazole is shown as a formula I, a molecular formula of the modified dithiocarbamic acid is shown as a formula II, and a molecular formula of the lauryl mercaptan is shown as a formula III, wherein R1 refers to straight-chain alkyl groups with 1-4 carbon chains, and R2 refers to straight-chain alkyl groups with 2-4 carbon chains. The preparation method includes that the modified dithiocarbamic acid, the sodium mercaptobenzothiazole, the lauryl mercaptan and the fatty alcohol are mixed proportionally and mechanically stirred for 10-30min at the temperature of 15-35 DEG C to obtain reddish brown oily liquid which is the collecting agent. The collecting agent is applicable to associated precious metal sulfide flotation. Recovery rate of useful metals in associated precious metal sulfide ores can be increased by giving full play to synergistic effects of different collecting agents.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a preparation method and application of a collector. Background technique [0002] Copper sulfide deposits are generally polymetallic co-associated deposits. The main useful minerals in the ore are chalcopyrite, pyrite, pyrrhotite, tetrahedrite, arsenite, chalcocite, bornite, copper Blue, etc. are associated with beneficial minerals such as molybdenite, gold, and silver, rare dispersed elements such as indium, gallium, germanium, cadmium, rhenium, and thallium, and elements such as cobalt, bismuth, and sulfur. The economic value of these associated elements is higher than that of Several times or even dozens of times that of the main metal, the comprehensive utilization of these elements is an important measure to improve the economic benefits of mines. [0003] Collectors commonly used in copper sulfide ore flotation include: anionic collectors, such as dithiocar...

Claims

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Application Information

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IPC IPC(8): B03D1/012
Inventor 胡元简胜武林杨林张旭东任海洋金赛珍张曙光梁溢强
Owner KUNMING METALLURGY INST
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