Technical method for selecting and smelting refractory complex molybdenum ore processed by combined process flow
A combination of beneficiation and smelting technology and a process method are applied in the treatment field of difficult-to-select complex molybdenum ore, which can solve the problems of high-oxidation rate molybdenum ore, strong hydrophilicity, inability to realize recycling, waste of mineral resources, etc., and achieve low pharmaceutical prices. The effect of easy availability, improved recovery, and avoidance of large losses of molybdenum metal
Inactive Publication Date: 2011-06-01
GUANGDONG INST OF MINERAL APPL
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Molybdenum ore with a high oxidation rate is naturally hydrophilic, low in hydrophobicity, incomplete in crystallization, and mostly fine-grained and disseminated. It is impossible to achieve recycling with existing technical processes, both technically and economically, thus causing serious damage to mineral resources. serious waste
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The raw ore in this example is a type of molybdenum ore with a high oxidation rate, and its mineral composition is complex, and its mineral composition is shown in Table 1.
[0028] Table 1 Mineral composition of raw ore
[0029]
[0030] The main occurrence state of molybdenum in raw ore is PbMoO 4 , molybdenum China MoO 4 , molybdenum calcium ore CaMoO 4 , molybdenite Fe 2 (MoO 4 ) 3 · n H 2 Existing in the form of O, the above-mentioned molybdenum minerals are all deeply oxidized oxide ores, mainly molybdenum-leadite. No molybdenum sulfide ore such as molybdenite was found in the ore samples.
[0031] The chemical analysis results of the ore are shown in Table 2.
[0032] Table 2 Chemical analysis results of raw ore
[0033] Element
Mo
Pb
WO 3
Zn
Cu
Bi
content%
0.82
3.60
0.038
0.28
0.013
0.025
Element
SiO 2
TiO 2
MgO
CaO
Na 2 o
K 2 o
conte...
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
Login to View More Abstract
The invention discloses a technical method for selecting and smelting refractory complex molybdenum ore processed by combined process flow, which adopts the technique combining mineral separation and wet-process metallurgy, and comprises the steps of: processing raw ore by flotation and throwing tailings for enrichment, then carrying out leaching, purifying, extracting and back-extracting, crystallizing by acid precipitation, ammonia dissolving and secondary crystallizing by acid precipitation on molybdenum rough concentrate, and finally, obtaining ammonium molybdate product. The product has high quality and molybdenum recovery rate, and the technical problem that the minerals are difficult to directly utilize by mineral separation and enrichment, so that the comprehensive utilization of molybdenum ore resource is neglected by the people can be solved; furthermore, the technical method provides technical support for development and utilization of the molybdenum ores, and has good feasibility technically and economically, thus fully and effectively utilizing the molybdenum ore resource and being beneficial to meeting and promoting the development of molybdenum industrial production.
Description
technical field [0001] The invention relates to a treatment method for molybdenum-containing minerals, in particular to a treatment method for refractory complex molybdenum ores. Background technique [0002] Molybdenum is a rare metal. There are more than 20 kinds of molybdenum minerals known in nature, among which molybdenite, calcium molybdate, molybdenite and lead molybdate have the largest reserves and industrial value. Except molybdenite is the primary ore, the other three minerals are secondary minerals generated due to the weathering of molybdenite. my country is a country rich in molybdenum ore resources, and its reserves rank second in the world, accounting for 25% of the world's total molybdenum reserves. The molybdenum ore resources that have been used and planned to be used are mainly molybdenite. Moreover, molybdenite is currently the research and production object of molybdenum ore at home and abroad. The existing molybdenite beneficiation and smelting techn...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/34C22B3/12C22B3/26C22B3/40C01G39/00
CPCY02P10/20
Inventor 梁冠杰黄雯孝黄霞光黄美媛罗泽安林海杨飞祝伟民刘国华张骄
Owner GUANGDONG INST OF MINERAL APPL