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Application of methylne bis (bitutyl dithio carbamate)

A technology of dibutyldithiocarbamate and methylenebis is applied in the field of methylenebis as a flotation selective collector for copper-molybdenum ore, which can solve the influence of flotation index, influence on application and production The problem of high cost, to achieve the effect of low production cost, convenient operation and improved metal recovery rate

Inactive Publication Date: 2011-04-20
GUANGZHOU RES INST OF NON FERROUS METALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since ester collectors also have the ability to collect pyrite, in the presence of pyrite, the flotation indicators of copper minerals and molybdenum minerals are affected to a certain extent, and the production cost is high, which affects its application.

Method used

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  • Application of methylne bis (bitutyl dithio carbamate)
  • Application of methylne bis (bitutyl dithio carbamate)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Crushing and grinding the sulfide ore containing 1.07% copper and 15.89% copper oxidation rate, adding water until the pulp contains 30% solid weight, adding 300 g / ton of activator sodium sulfide, 1000 g / ton of raw ore inhibitor, water glass, and adding sub Methyl bis (dibutyl dithiocarbamate) 10 grams per ton of raw ore, after one roughing, three times of sweeping and three times of beneficiation, the obtained copper concentrate contains 20.77% of Cu, and the recovery rate of Cu is 81.54%.

Embodiment 2

[0016] Crushing and grinding the sulfide ore containing 0.104% molybdenum, adding water until the slurry contains 33% solid weight, adding activator sodium sulfide 400 g / ton raw ore inhibitor water glass 1100 g / ton raw ore, and adding methylene bis(dibutyl Based on dithiocarbamate) 15 grams per ton of raw ore, after one roughing, three times of sweeping and three times of beneficiation, the molybdenum concentrate contains 50.60% molybdenum, and the recovery rate is 89.38%.

Embodiment 3

[0018] Crushing and grinding the molybdenum-copper sulfide ore containing 0.144% molybdenum and 0.014% copper, adding water until the pulp contains 35% solid weight, adding 500 grams / ton of activator sodium sulfide, 1800 grams / ton of water glass as an inhibitor, and Add 20 g / ton of methylene bis(dibutyldithiocarbamate) ore, and after one roughing, three times of sweeping and three times of beneficiation, the molybdenum concentrate contains 53.14% molybdenum, and the recovery rate is 90.66%. The copper mine contains 8.29% copper, and the copper recovery rate is 60.66%.

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Abstract

The invention relates to application of methylne bis (bitutyl dithio carbamate) in flotation of copper-molybdenum ore and is characterized in that a use method is as follows: smashing and levigating sulfide ore containing copper and / or molybdenum; adding water until the solid content in ore slurry reaches 30-35%; adding 300-500 g / ton raw ore of activating agent sodium sulfide, 1000-1800g / ton raw ore of inhibitor sodium silicate and 10-20g / ton raw ore of collector methylne bis (bitutyl dithio carbamate); and carrying out primary roughing, three times of scavenging and three times of selections, and obtaining copper concentrate. Compared with the existing collector, the collector methylne bis (bitutyl dithio carbamate) provided by the invention does not block a pipeline, is convenient for operation, is used for achieving the flotation of copper-molybdenum sulfide ore in an alkaline medium, and is strong in adaptability; use amount of the collector is less, and production cost is low, so the collector methylne bis (bitutyl dithio carbamate) is beneficial to popularization and application in a dressing plant; and the metal recovery rate of the copper-molybdenum sulfide ore in the process of copper-molybdenum sulfide ore flotation is improved by using the collector in the invention.

Description

technical field [0001] The invention relates to the application of methylene bis(dibutyl dithiocarbamate) as a selective collector for copper-molybdenum ore flotation. Background technique [0002] Take dibutylamine, carbon disulfide, methylene dichloride as the methylene bis (dibutyl dithiocarbamate) of raw material synthesis, chemical formula is ((C 4 h 9 ) 2 NCS 2 ) 2 CH 2 , the structural formula is: [0003] [0004] Appearance is amber transparent liquid, trade name is Octopol MB Vanlube 7723, etc., is a kind of ashless antioxidant, extreme pressure and antiwear agent. It is widely used in the fields of advanced anti-oxidation and wear-resistant lubricants for automobiles and construction machinery, organic chemicals, and polymer material additives. As an antioxidant, the general dosage is 0.5-1.0%; as an extreme pressure anti-wear agent, the dosage is 2.0-4.0%. It can also be used in crankshaft lubricating oil, engine oil, gear oil, various greases, metalwo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012B03D101/02B03D103/04
Inventor 何晓娟张新普张军张仪罗传胜罗春华郑少冰
Owner GUANGZHOU RES INST OF NON FERROUS METALS
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