Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-grade associated molybdenum-copper-sulfur ore flotation composite collecting agent and flotation method

A composite collector, low-grade technology, used in flotation, chemical instruments and methods, wet separation, etc. Insufficient and other problems, to achieve the effect of improving concentrate grade and associated molybdenum recovery rate, weak collecting power, and solving low resource utilization rate

Pending Publication Date: 2022-02-01
JIANGXI COPPER CORP +1
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in terms of collectors, it is common to use xanthate or black medicine or xanthate or thiourethane-based copper collectors in combination with kerosene or diesel. Sometimes these collectors do not work well Taking into account the collection of copper and molybdenum, the agents with strong collection ability are often not selective enough for pyrite and calcium aluminum silicate gangue minerals, and the agents with strong selectivity are not suitable for fine-grained embedded molybdenum and low-grade associated molybdenum. Mining capacity is weak
Therefore, conventional flotation reagents are not suitable for this type of ore. It is urgent to develop a low-grade associated molybdenum-copper-sulfur ore flotation collector, which can effectively improve the associated molybdenum recovery index without affecting the flotation index of the main metal mineral copper. , which is of great significance to improving the utilization rate of molybdenum ore resources and increasing economic benefits for mining enterprises

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-grade associated molybdenum-copper-sulfur ore flotation composite collecting agent and flotation method
  • Low-grade associated molybdenum-copper-sulfur ore flotation composite collecting agent and flotation method
  • Low-grade associated molybdenum-copper-sulfur ore flotation composite collecting agent and flotation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] At room temperature, add 40 parts of diesel oil, 30 parts of transformer oil, 16 parts of 2-isopropylnaphthalene, 10 parts of N,N-diethyldithiocarbamate methyl acrylate and 4 parts of polyoxyethylene lauryl ether Stirred tank, the order of addition is not required, stirred at a stirring speed of 1000r / min for 50min to obtain a homogeneous non-layered oil, that is, to obtain the low-grade associated molybdenum-copper-sulfur ore flotation composite collector, code-named XM -1.

Embodiment 2

[0063] At normal temperature, add 40 parts of kerosene, 25 parts of transformer oil, 22 parts of methylnaphthalene, 10 parts of N,N-diethyldithiocarbamate propionitrile and 3 parts of polyoxyethylene laurate into the stirring tank, The order of addition is not required. Stir for 60 min at a stirring speed of 1000 r / min to obtain a homogeneous non-layered oil, that is, to obtain the low-grade associated molybdenum-copper-sulfur ore flotation composite collector, code-named XM-2.

Embodiment 3

[0065] A large low-grade associated molybdenum-copper-sulfide ore, the main metal minerals in the ore are pyrite, chalcopyrite, tetrahedrite, molybdenite and a small amount of sphalerite and pyrrhotite. Gangue minerals are mainly quartz and feldspar, followed by mica, kaolinite, and montmorillonite. The raw ore contains 0.57% copper, 0.019% molybdenum and 8.48% sulfur, and the oxidation rate of copper is 17.55%. The research results of process mineralogy show that molybdenite is mainly embedded in the gangue mainly of quartz and potassium feldspar in the form of fine flakes or flexures, and the particle size of molybdenite is fine, generally below 0.21mm, -0.037 mm particles account for 40-50%, belonging to the category of fine-grained intercalation; copper minerals are mostly scattered and disseminated, and are most closely intercalated with pyrite, most of which are intercalated on their edges or between grains, and the types of copper minerals are relatively complex , rela...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of mineral flotation, in particular to a low-grade associated molybdenum-copper-sulfur ore flotation composite collecting agent and a flotation method. The composite collecting agent comprises the following components in parts by weight: 55-75 parts of hydrocarbon oil, 10-30 parts of an aromatic hydrocarbon compound, 5-10 parts of a sulfur-nitrogen ester medicament and 2-5 parts of a nonionic surfactant. The composite collecting agent has the beneficial effects that the composite collecting agent has the characteristics of being high in copper-molybdenum mineral collecting capacity, low in pyrite and calcium aluminosilicate gangue collecting capacity, good in selectivity, small in dosage, good in dispersion in water, easy to add and use and the like, and is used for flotation of low-grade associated molybdenum-copper-sulfur ores; the recovery rate of molybdenum roughing is increased by 20-46% compared with that of conventional collecting agents of kerosene, diesel oil and thionocarbamate, and the problem that the utilization rate of associated molybdenum resources of the ores is low is effectively solved.

Description

technical field [0001] The invention relates to the technical field of mineral flotation, in particular to a low-grade associated molybdenum-copper-sulfur ore flotation composite collector and a flotation method. Background technique [0002] Molybdenum is an important scarce strategic metal, which is widely used in iron and steel, metallurgy, military, chemical industry, biomedicine, environmental protection and aerospace due to its advantages such as high melting point, high strength, high temperature resistance, corrosion resistance and abrasion resistance. At present, 99% of the molybdenum production in the world is obtained from molybdenite. According to reports, molybdenum recovered from copper-molybdenum ore accounts for about 48% of the world's molybdenum production. Therefore, strengthening the comprehensive recovery of associated molybdenum in copper ore has always been one of the focuses of research by mineral processing workers at home and abroad. [0003] With...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012B03B1/00B03B7/00B03B9/00B03D101/02B03D103/02
CPCB03D1/012B03B1/00B03B7/00B03B9/00B03D2201/02B03D2203/02
Inventor 林清泉戴智飞曾令明童佳诚宋坤
Owner JIANGXI COPPER CORP