China's phosphate reserves are abundant, but high-grade phosphate reserves are low. Yunnan, Guizhou, Sichuan, and Hubei are the four provinces with the most abundant phosphorous deposits in China. The following small series for everyone details the relevant knowledge of phosphate rock.
Phosphate ore overview:
Phosphate rock refers to the general term of phosphate minerals that can be used economically. Mianzhu City is one of the phosphate rock bases in Sichuan, China, and is an important chemical mineral raw material. It can be used to make phosphate fertilizers, and can also be used to make yellow phosphorus, phosphoric acid, phosphides and other phosphates for use in pharmaceutical, food, matches, dyes, sugar, ceramics, defense and other industrial sectors. The application of phosphate rock in industry has a history of more than one hundred years. Phosphorus ore can be divided into apatite and phosphorite according to its origin. Apatite refers to phosphate rock that appears in the form of crystalline apatite in magmatic rocks and metamorphic rocks. Phosphorite refers to a stack formed by exogenous action, consisting of cryptocrystalline or microscopic amylases apatite and other gangue minerals. There are about 120 kinds of phosphorus-containing minerals known in nature, and they are widely distributed. However, there are only a few types of phosphorus-containing minerals that can be mined according to their quality and quantity. The main phosphorus-containing minerals that are used as phosphorus in industry are apatite, followed by aluminophossite, struvite, and cericite. About 95% of phosphorus in nature is concentrated in apatite.
Phosphate rock refers to the general name of phosphate minerals that can be used economically and is an important chemical mineral raw material. It can be used to make phosphate fertilizers, and can also be used to make yellow phosphorus, phosphoric acid, phosphides and other phosphates for use in pharmaceutical, food, matches, dyes, sugar, ceramics, defense and other industrial sectors. The application of phosphate rock in industry has a history of more than one hundred years.
Phosphorus ore price:
Due to the scarcity of phosphate ore resources, and the fact that domestic production is relatively serious, the utilization rate of small phosphorus resources is only 15%-30%, while the utilization rate of large ore reserves can reach 60%-80%. . Therefore, major provinces with major phosphorus reserves in China have taken measures to control small-mineral phosphate mining, and have also achieved certain results, such as the number of phosphorus mines in Hubei reduced from 284 to 145 before the renovation. The "Twelfth Five-Year Development Plan for Chemical Industry Mining" has raised the status of phosphate rock resources to an unprecedented level and requires the establishment of a reserve mechanism for phosphate rock production areas in the next five years to increase the access threshold for phosphate mining. At the same time, each major phosphate province began to actively introduce integration plans, and phosphate rock prices will also rise all the way.
Phosphorus mines in Yunnan are currently stable and 29% quality phosphorite mines have an execution price of RMB 365/tonne. Phosphorus mines in Sichuan, Guizhou, and Hubei provinces are currently mostly unexploited. The inventory of mines is small, and individual freight yards have slight inventory. , Traders wait and see mood is strong, quotes maintain stability. Sichuan 30% quality concentrate car plate price 400 yuan / ton; Guizhou 30% quality raw ore Kaiyang car plate offer 400 yuan / ton; Hubei 28% quality ammonium phosphate ore Yichang ship board offer 400 yuan / ton. Ore prices are expected to stabilize recently.
There are three types of phosphate rock in China: magmatite-type apatite, sedimentary rock-type phosphorite, and sedimentary metamorphic rock type phosphorite.
1. Magmatic Rock Apatite: The storage only accounts for 7% of the total storage, mainly in the north. It is characterized by low phosphorous grades, generally less than 10%, and the lower ones are only 2 to 3%. As the crystallization is relatively coarse, and the size of the inlaid cloth is relatively coarse, it is an easy-to-select phosphate rock. The beneficiation process is simple and the beneficiation index is relatively high. Also associated with vanadium, titanium, iron, cobalt and other elements, can be comprehensively recycled, so this kind of ore has better economic benefits.
2. Deposited metamorphic rock type phosphorite: its storage accounts for 23% of the total storage, mainly distributed in Jiangsu, Anhui, Hubei and other provinces. Under normal circumstances, due to weathering, ore loose, high mud, using scrub, mud removal process can obtain qualified phosphate concentrate, sometimes with flotation process. Many mines in the Dianchi area of ​​Yunnan Province have adopted this technology and have a low production cost. This type of ore is the largest industrial phosphate rock.
3. Sedimentary rock-type phosphorite: It is the main type in all countries in the world. The storage of this type of ore in China accounts for 70% of the total storage, mainly distributed in south central and southwest. The five provinces of Yunnan, Guizhou, Sichuan, Hubei and Hunan accounted for 78% of this type of storage, which is arguably the home of phosphate rock.
The above is related to the introduction of phosphorus ore. If you want to know more related information, please pay more attention to this website and provide you with more complete, more detailed and updated information.
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