History of Uranium Mining

1. What are the prospects for uranium mining in China

China has so far proved more than 200 uranium mines of various sizes and confirmed a considerable amount of uranium reserves. The ores are mainly of low to medium grade, with 0.05% to 0.3% grade accounting for most of the total resources. Ore components are relatively simple, mainly for single-uranium type ores,

Only in very few deposits are there other metal elements **** born, forming uranium? Molybdenum, uranium? mercury, uranium? copper, uranium? polymetallic, uranium? Th? Rare earth deposits. The size of the deposits is mainly small and medium-sized (accounting for more than 60% of the total reserves), and within some ore fields, the deposits tend to occur in clusters of a few, or dozens, while 1~2 main deposits often exist among them. The proven uranium ore bodies are mostly buried within 500m. There are four main types of deposits: granite-type, volcanic rock-type, sandstone-type, and carbon-silica mudstone-type uranium deposits; their reserves account for 38%, 22%, 19.5%, and 16% of the country's total reserves, respectively. Uranium deposits in coal-bearing strata, uranium deposits in alkaline rocks and other types of uranium deposits account for a small proportion of the proven reserves, but have the potential to find minerals.

The distribution of uranium resources in China is uneven, with uranium deposits found in 23 provinces (autonomous regions), but mainly concentrated in provinces (autonomous regions) such as Gan, Guangdong, Qian, Xiang, Gui, Xin, Liao, Dian, Ji, Meng, Zhe, Gan, and so on, with Gan, Xiang, Guangdong, Gui being the richest ones, accounting for 74% of the proved industrial reserves.

China's uranium ore mineralization period is dominated by the Cenozoic era, and is mainly concentrated in the 87~45 Ma. The order of mineralization is: mixed rock type, pegmatite type, granite type, volcanic rock type, carbon and silica mudstone type and sandstone type. According to the mineralization type of uranium deposits, the age of mineralization and the distribution characteristics of the geotectonic unit, divided into the eastern province of uranium mineralization, the Tianshan Mountains, the Qilian Mountains and the Qilian Mountains. Qilian Mountains uranium mineralization province, western Yunnan uranium mineralization area. And according to the cause of the deposit, the surrounding rocks and mineralization characteristics of the main uranium deposits in China are divided into endogenous uranium deposits (magmatic, hydrothermal), exogenous uranium deposits (diagenetic, post-generative lymphatic accumulation type) and complex cause of uranium deposits of three categories.

Uranium minesChina is a country that is not rich in uranium resources. According to recent years, China to the International Atomic Energy Agency has provided a number of uranium field reserves projected, China's proven uranium reserves ranked 10th in the world after the development of nuclear power can not be adapted to the long-term needs. The scale of ore deposits is mainly small and medium-sized (accounting for more than 60% of the total reserves). Ore grade is low, usually with phosphorus, sulfur and non-ferrous metals, rare metal minerals with which **** born or associated. There are four main types of deposits: granite-type, volcanic-type, sandstone-type, and carbon-silica mudstone-type uranium deposits; the reserves they hold account for 38%, 22%, 19.5%, and 16% of the country's total reserves, respectively. Uranium deposits in coal-bearing strata, uranium deposits in alkaline rocks and other types of uranium deposits account for a very small proportion of the proven reserves, but have the potential to find ore. The time span of China's uranium ore mineralization is between 1900 and 3 Ma, i.e., between the Paleoproterozoic and Tertiary eras, with the Jurassic and Cretaceous eras of the Mesozoic era being the most concentrated. The spatial distribution of uranium deposits in China is divided into two major regions, the northern uranium mining area is dominated by volcanic rocks, while the southern uranium mining area is characterized by granitic rocks.

Distribution of uranium mines in China

Uranium mines in China *** Proven size of uranium deposits (field) more than 200, mainly in Jiangxi, Guangdong, Hunan, Guangxi, as well as Xinjiang, Liaoning, Yunnan, Hebei, Inner Mongolia, Zhejiang, Gansu and other provinces (regions).

The deposits are mainly small and medium-sized, of which the main uranium deposits are: Xiangshan Uranium Ore Field, Chenxian Uranium Ore Deposit, Xiazhuang Uranium Ore Field, Ziaping Uranium Ore Field, Qinglong Uranium Ore Field, Tengchong Uranium Ore Deposit, Taoshan Uranium Ore Deposit, Xiaoqiuyuan Uranium Ore Deposit, Huangcun Uranium Ore Deposit, Lianshanguan Uranium Ore Deposit, Lantian Uranium Ore Deposit, Ruorgui Uranium Ore Deposit, Blethenling Uranium Ore Deposit, Ili Uranium Ore Deposit, Baiyanghe Uranium Ore Deposit. The completed and newly built mills include: Hengyang Uranium Mine, Chenzhou Uranium Mine, Dapujie Uranium Mine, Shangrao Uranium Mine, Fuzhou Uranium Mine, Le'an Uranium Mine, Wengyuan Uranium Mine, Quzhou Uranium Mine, Lanhe Uranium Mine, Renhua Uranium Mine, Benxi Uranium Mine, Lantian Uranium Mine, and Yili Uranium Mine.

Under the support of advanced technology and excellent exploration team, the prospect of uranium resources in China is also considerable. At present, there are still more than ten uranium mineralization zones and large exploration gaps in China that are still waiting for systematic exploration and evaluation, and the prospect of finding minerals is very broad. By the end of 2007, a new round of national uranium resource potential prediction and evaluation is underway, and it is expected that China's potential uranium resources exceed several million tons. At present, it seems that China's uranium resources can fully meet the needs of domestic nuclear power development.

Uranium mines in Guangxi are concentrated in the resource county area of Xing'an County, Guilin, and are currently the largest mines in China.

But it seems to me that this may require a relationship in order to mine it, this kind of rare resources on nuclear technology is not just can dig.

2. Uranium mining should be how to reduce radiation

Nuclear energy development and utilization of the current situation and environmental pollution Tang Hao Keywords: energy crisis, nuclear energy development, development and utilization of the current situation of nuclear power, environmental pollution Abstract: In the face of the growing energy crisis and the use of fossil fuels to produce the greenhouse effect, environmental pollution and other issues, the world's countries are on the decision-making of the development of energy to pay great attention.

Nuclear energy is a kind of clean, safe, technologically mature energy, the development and utilization of nuclear energy has become a rational choice of mankind under the energy crisis. This paper focuses on the development of nuclear energy, the development and utilization of nuclear energy and the current situation of the development and utilization of nuclear energy on the environment, analyzes the obvious advantages of nuclear energy, nuclear power relative to traditional energy sources, pointed out that the vigorous development and utilization of nuclear energy, the development of nuclear power is the realization of the human society and the economy is an inevitable choice for sustainable development, clean, efficient nuclear energy has a broad development prospects.

Energy is a guaranteed resource for human social and economic development, and the energy problem is also a global problem. At present, the energy used by mankind is mainly fossil energy, since the industrial revolution in the 1870s, the consumption of fossil fuels has increased dramatically, more than 90% of the world's economic activities rely on fossil energy to provide the energy, due to the large number of consumption of such resources are tending to depletion; at the same time, large-scale use of fossil fuels also brought about serious environmental pollution, resulting in the greenhouse effect and global warming and a series of environmental problems. The fossil fuels are also causing serious environmental pollution, leading to the greenhouse effect and global warming and a series of environmental problems.

The energy and environmental crises are becoming more and more urgent, and the search for new clean, safe, and efficient energy sources is the same task facing mankind. In modern society, in addition to coal, oil, natural gas, water resources, there are many available energy sources, such as wind energy, solar energy, tidal energy, geothermal energy, etc., but due to technical problems and development costs and other factors, these energy sources are difficult to achieve large-scale industrial production and utilization in the near future; and nuclear energy is an economic, safe, reliable, clean energy, compared with a variety of fossil energy sources, nuclear energy is less harmful to the environment and human health. Compared with various fossil energy sources, nuclear energy is less harmful to the environment and human health, and these obvious advantages make nuclear energy a safe and economical industrial energy source that can be used on a large scale in the new century.

Since the 1950s, the former Soviet Union, the United States, France, Germany, Japan and other developed countries have built a large number of nuclear power plants, due to the huge development potential of nuclear power and broad prospects for the use of nuclear power, the use of nuclear energy in the peaceful development of the energy industry will become the direction of the development of the future for a long period of time. 1 energy crisis and the inevitability of the development of nuclear energy Due to the large-scale development and utilization of fossil energy, fossil energy can be exploited increasingly depleted, in the world's primary energy supply accounted for about 87.7%, of which oil accounted for 37.3%, coal accounted for 26.5%, natural gas accounted for 23.9%.

Although the development of non-fossil energy and renewable energy is rapid and fast-growing, the proportion is still relatively low, about 12.3%. According to the 2004 BP World Energy Statistics, by the end of 2003, the world's remaining proven recoverable reserves of oil was 156.58 billion tons, and the world oil production in 2003 was 3.679 billion tons, which means that it can be exploited for about 42 years.

The remaining recoverable reserves of coal are 984.45 billion tons, which can be used for 192 years, and the remaining recoverable reserves of natural gas are 175.78 trillion cubic meters, which can be used for 67 years. Fossil fuels have also caused serious environmental pollution during their use, and global environmental problems such as the greenhouse effect, acid rain, and global warming have continued to intensify, with resource and environmental crises constraining and challenging the sustainable development of human civilization.

In the known new renewable energy sources, due to technical difficulties and economic factors, the development of solar energy, wind energy, biogas, etc. have not been able to utilize on a large scale, only the hydropower resources have been developed and utilized on a large scale, although it can be continued to be developed, but it is difficult to rely on hydroelectricity alone to meet the demand for economic and social development, it seems to be renewable energy sources to achieve the full range of applications and sufficient to support the economy, it is still quite a long time to go to the level of sustainable development. Thus, it seems that a considerable period of further development is needed before renewable energy can reach a level of full application and be sufficient to support sustained economic development. As new renewable and clean energy sources are facing technical and cost problems, only nuclear energy is a clean, safe, reliable and economically competitive alternative.

According to a report published by an expert of the International Atomic Energy Agency, a coal-fired power plant with an installed capacity of 1 million KW consumes 2.5 million tons of coal per year, and emits the following wastes: 6.5 million tons of carbon dioxide (containing 2 million tons of carbon), 17,000 tons of sulfur dioxide, 4,000 tons of nitrogen oxides, and 280,000 tons of coal ash (which contains about 400 tons of toxic heavy metals). The same size of a pressurized water reactor nuclear power plant, only consume 25 tons of low-enriched uranium per year (equivalent to 150 tons of natural uranium), the waste discharged: the treatment of cured high-level waste of 9 tons (volume of about 3 cubic meters), will be stored in the deep underground and isolated from the environment of the rock wells, and another 200 tons of medium-volume waste, low-volume waste of 400 tons.

Nuclear power plants do not emit carbon dioxide, sulfur dioxide or nitrogen oxides, and 1kg U-235 fission energy equivalent to 200 tons of standard coal. According to relevant reports, the world's annual carbon dioxide emissions from the burning of fossil fuels has reached 5.5 billion tons (in terms of carbon), and as of 1993 statistics, due to the use of nuclear power generation has made the world's carbon dioxide emissions reduced by 8%.

Therefore, in the future, the development and utilization of nuclear energy will become an inevitable choice for mankind to cope with the energy crisis and achieve sustainable economic development in the 21st century.2 The Development History and Current Situation of the Development and Utilization of Nuclear Energy2.1 Simple History of the Development of Nuclear Energy The actual utilization of nuclear energy by mankind started from the war.

The war use of nuclear energy is to damage the enemy's personnel and materials through the huge power of atomic bombs, to achieve the purpose of winning or ending the war. At present, the development and utilization of nuclear energy is mainly the development of nuclear power, and nuclear energy has obvious advantages compared with other energy sources. The development and construction of nuclear power plants began in the 1950s. In 1954, the former Soviet Union built an experimental nuclear power plant with an electric power of 5,000kW; in 1957, the United States built a prototype nuclear power plant with an electric power of 90,000kW in Hipping Harbor, which proved the technical feasibility of using nuclear energy to generate electricity.

Internationally, the above experimental and prototype nuclear power units are called first-generation nuclear power units. since the late 1960s, on the basis of the experimental and prototype nuclear power units, pressurized water reactors, boiling water reactors, heavy water reactors, and other nuclear power units with an electrical power of more than 300,000kW have been built, which have further proved the feasibility of the nuclear power generation technology, and at the same time, proved that the economy of nuclear power: it can be competitive with thermal power and hydroelectric power. Thermal power, hydropower competition.

20th century.

3.

According to the history books, it has been less than 10,000 years since the primitive Stone Age when our present humanity emerged as a high civilization. Obviously, these monuments of civilization do not belong to the creation of our present humanity. In fact, many of these monuments are beyond the reach of our current human technology. Based on this solid evidence, some scholars have proposed the theory of prehistoric civilization, which refers to the existence of human civilizations on Earth before our current human civilization. At the same time, many of the civilizations discovered span a very long time. From the different prehistoric human civilizations excavated and discovered today, it is clear that human beings have existed on our planet since a very long time ago and have developed highly developed civilizations. For example, the human footprints in shoes found on trilobite fossils from 600 million to 250 million years ago, the large chain nuclear reactor found in Gabon*** and the country of today's Africa from 2 billion years ago, the metal ball found in today's South Africa from 2.8 billion years ago, and the stone tools of many different periods and so on, it is hard to imagine that they belong to the same human civilization period. Therefore, scientists have put forward the theory of multiple prehistoric civilizations, and believe that there have been multiple prehistoric human beings and civilizations on earth. The development of human beings is not as previously thought, but cyclical, and different civilizations existed on Earth at different times. Modern science has recognized that everything develops in cycles. Human beings are born, grow old, get sick and die; plants and animals are born, grow old, get sick and die; societies are cyclical, and it is likely that human beings are cyclical as well. This can be found from today's excavation and discovery of a variety of different prehistoric human civilization remains and different prehistoric human tools left behind in the Stone Age to find clues....

4. Is there any uranium in China

China is a country that is not very rich in uranium.

According to recent years, China to the International Atomic Energy Agency has provided a number of uranium field reserves projected, China's proven uranium reserves ranked 10th in the world after the development of nuclear power can not be adapted to the long-term needs. The size of the deposit is mainly small and medium-sized (accounting for more than 60% of the total reserves).

Ore grade is low, usually with phosphorus, sulfur and non-ferrous, rare metal minerals with which **** born or associated. There are four main types of deposits: granite-type, volcanic-type, sandstone-type, and carbon-silica mudstone-type uranium deposits; the reserves they hold account for 38%, 22%, 19.5%, and 16% of the country's total reserves, respectively.

Uranium deposits in coal-bearing strata, uranium deposits in alkaline rocks and other types of uranium deposits accounted for a small proportion of the proven reserves, but have the potential to find minerals. The time span of uranium mineralization in China is from the Paleoproterozoic to the Tertiary, with the Jurassic and Cretaceous mineralization in the Mesozoic being the most concentrated.

The spatial distribution of uranium deposits in China is divided into two major regions, the northern uranium mining area is dominated by volcanic rocks, and the southern uranium mining area is important for granite-type power. China is the world's second largest energy consumer after the United States, and the demand for energy is growing rapidly.

Experts point out that relying solely on oil, coal, gas, hydropower and other traditional energy sources is unlikely to meet China's energy needs, the development of nuclear energy is an inevitable choice. China is now planning to expand its nuclear power plants and quadruple its nuclear power generation capacity by 2020.

Australia has 40% of the world's easily mined uranium reserves. Australia's uranium ore exports bring in around $300 million a year, with the biggest buyers currently being the US, Japan, South Korea and the European Union.

In order to meet the long-term need for nuclear power, China is exploring and mining uranium in Australia to meet the growing demand for uranium from its nuclear power industry.