Ore industry requirements
Molybdenum ore is relatively simple, mainly sulfide ore, its industrial requirements with the different mining methods and slightly changed.
Molybdenum minerals are often associated with tungsten, bismuth, copper, lead, zinc, cobalt, iron, gold, niobium, beryllium, rhenium, indium, selenium, tellurium, uranium, sulfur and so on.
A brief history of mining
The world's first molybdenum deposit to be developed was the Knaben deposit in the kingdom of Norway.The mine was opened in 1885, and because demand for molybdenum was so low at the time, it was stopped-stop-working.In the second half of the 19th century, molybdenum first began industrial production in the United States, producing only a few tons a year.Since the 20th century, due to the increasing demand for molybdenum year by year and the expansion of molybdenum mining year by year, the annual output of molybdenum in the world increased rapidly, increasing to about 100t on the eve of the first world war, reaching 10,000t in the late 1930s and 100,000t in the late 1970s.
China's molybdenum was first found in the late qing dynasty, mining began on the eve of the first world war.At that time, it mainly mined some vein molybdenum deposits along the coast of fujian and zhejiang and some vein tungsten deposits associated with molybdenum in south China.The end of the war of resistance against Japan, liaoning yangjia zhangzi molybdenum mine by the Japanese invaders of predatory mining.Before liberation the annual output was only a few tons, more than ten tons at most.After the liberation, in order to meet the need of socialist construction in our country, has established the considerable size of the three big molybdenum base (Yang's face in liaoning, shaanxi jinduicheng luanchuan, henan) and a number of small and medium sized mines, many also is part of the recovery of molybdenum copper and tungsten, which makes China molybdenum concentrate production capacity of jump into the world's advanced ranks.
China's molybdenum mines
Molybdenum reserves in China rank top in the world, shaanxi province huaxan jindui town, liaoning huludao, jilin, shanxi, henan, fujian, guangdong, hunan, sichuan, jiangxi and other provinces have molybdenum, and reserves, good development conditions, the output occupies an important position in the country.The main molybdenum ore of industrial value is molybdenum glance (MoS 2), about 99% of the molybdenum ore is in the state of molybdenum glance (MoS 2) mining.At present, China's molybdenum concentrate is mainly exported to Russia, Japan and western countries.
On July 21, 313 geological team exploration of jinzhai county in anhui province departmental belongs GuanMiao township shaping groove molybdenum prospecting report by anhui province mineral resources reserves &appraisal center, reserves of 2.2 million tons, ranks first in Asia, the world's second, the potential resources is worth more than 600 billion yuan, this is the only large anhui now find world-class metal deposits, end the dabie mountain in anhui, no large metal history.
On June 7, 2016, the reporter learned from the bureau of geology and mineral resources of henan province that the bureau's third geological survey team found a large molybdenum deposit in qianyechong county, guangshan county, xinyang, with a molybdenum content of about 600,000 tons and a potential economic value of more than 200 billion yuan.
Qianechong mining area is located in hepeng township, guangshan county, 34 km north to guangshan county.Geographical coordinates:
: east longitude 113 DHS 45 ´ ´ 43-113 DHS
In northern latitude: 31 DHS 47 49 ´ ´ - 31 DHS
Area: 11.6 sq km.
At present, qianerchong molybdenum ore is delineated three main molybdenum ore bodies, in addition to the proved 600000 tons of extra-large molybdenum ore body, there are two ore bodies in the exploration.
Expert introduction, qianerchong molybdenum ore reserves of a single ore body ranked first in the country, the submission of the results, so that the total amount of proved molybdenum resources in the northern foothills of dabie mountain among the forefront of the country.They also believe that the submission of qianerchong extra-large molybdenum mine not only laid a solid foundation for xinyang as the molybdenum industry base of the province, but also will change the development pattern of the province's molybdenum industry.
Geological exploration of molybdenum ore in China
China has been identified in 229 molybdenum ore areas, after the exploration of about 1/3.Molybdenum deposit geological exploration is designed for mine construction in mine production scale, product solutions, mining development plan, the general arrangement of mine and mine construction vision, deposit hydrogeology and engineering geology in the mining area and the mining technical conditions of ore mineral smelting and performance, etc, to provide the necessary geological data, so it is in the molybdenum deposit (area) after reconnaissance and detailed investigation of geological work, the ore deposit geology, hydrogeology and engineering geology conditions of mining technology, as well as the performance of ore processing technology, comprehensive utilization, mining area construction of external conditions, such as to make a preliminary technical and economic assessment is feasible, to make the exploration work.
Molybdenum ore exploration, the first is to determine the type of exploration according to the size, shape, thickness stability, structural damage and the distribution of the main components of the ore uniform degree.Then, according to the exploration type, the exploration means and the exploration project spacing are determined.In 1983, the ministry of geology and mineral resources and the ministry of metallurgy industry formulated the "molybdenum geological exploration specifications", which divided the exploration types of molybdenum deposits into four categories:
Types: the first Ⅰ exploration ore body extending huge scale, simple shape and thickness of stable to stable, structural damage is very small, ore main components distribution more uniform.The deposits of this type are jinduicheng in shaanxi province and sandaozhuang in henan province.
Types: the first Ⅱ exploration ore body extending scale is medium, shape more complex, thickness from stable to unstable, structural damage and inserted into small to large, uneven distribution of ore main components to a very uneven.The deposits of this type include yangjia zhangzi in liaoning province, wudaoling in heilongjiang province and baoshan in hunan province.
Types: the first Ⅲ exploration ore body extending are large in scale, form a simple, small thickness, the more stable structure and dike damage, ore main component distribution more uniform and non-uniform.The deposits of this type are shangfanggou in henan province.
Types: the first Ⅳ exploration ore body extending complex to small to medium scale, orebody shape is complex, the thickness of the unstable and very unstable, structural damage or inserted to a large, ore main components of uneven distribution is extremely uneven.The deposits belonging to this exploration type are shilengou in jilin province.
