As described above, China mainly for the production of boron ore borax and boric acid, and then further processing. In recent years, the consumption composition of China's borax and boric acid (by department) are: borax: 20% for chemical industry, 39% for light industry, 19% for medicine, 11% for building materials, 11% for other industries, and boric acid: 11 for chemical industry. %, 26% for light industry, 3.8% for medicine, 39% for building materials, and 20% for other industries. In addition to the large imports of boron products in China in 1987 and 1991, the import and export volume of boron ore and other products in other years is not much. At present, the supply and demand of borax and boric acid are basically balanced.

According to forecasts, the demand for borax and boric acid in China will be 240,000 tons in 2000; 300,000 tons in 2005; 356,000 tons in 2010; and 500,000 tons in 2020. The demand for boron ore is (B ₂ O ₃ 12% standard mine) 1.2 million tons in 2000; 1.5 million tons in 2005; 1.78 million tons in 2010; 2.5 million tons in 2020.

In order to meet the needs of future development, except during the "August" has been extended (new) construction of Liaoning Weng Quangou boron iron ore (ore block table East), Kuandian boron, boron Yingkou 501 and Kuandian garden ditch The total production capacity of boron mine is 377,000 t/55.4 million tons (original ore mine, the same below). During the period of the “Ninth Five-Year Plan” and the “Tenth Five-Year Plan”, according to the mine construction plan of the Ministry of Geology and Mineral Resources and the Ministry of Chemical Industry, The following expansion of (new) boron mines should be achieved to continue to increase boron mine production capacity. That is to say, during the "Ninth Five-Year Plan" period, the Wengquangou boron iron mine and the Tibet Zhacang tea-karon boron mine were expanded, and the total production capacity was 485,000 t/370,000 tons. During the "10th Five-Year Plan" period, the new (new) Jiandiandian Wudaoling was built. Errengou, Fengcheng Wengquangou and Tibet Dujiali and other boron mines, with an additional production capacity of 621,000 t/51.6 million tons. According to the above plan, the production capacity of China's mines in the end of the "Tenth Five-Year Plan" in 2005 will reach 1.535 million tons / 1.89 million tons.

However, China currently has insufficient reserves of some boron mines. In the proven boron reserves, for the industrial exploitation of boron and magnesium ore at current production capacity and production loss, this century will gob. It is predicted that the production capacity will disappear 155,000 tons between 1995 and 2000; the production capacity will disappear by 12,700 tons between 2001 and 2005; no capacity will disappear between 2006 and 2010; the production capacity will disappear 82,200 tons from 2011 to 2020. From 1992 to 2020, the cumulative production capacity disappeared by nearly 1 million tons.

If the above-mentioned mine construction plan of the Ministry of Geology and Mineral Resources and the Ministry of Chemical Industry can be realized, and the production capacity will be lost in the future, it is expected that the production capacity of China's boron mine will be 1.23 million tons in 2000 and 1.3 million tons (up to 1.65 million tons) in 2005; In 2010, 1.3 million tons (up to 1.65 million tons); in 2020, only 560,000 tons (up to only 910,000 tons).

Based on the above analysis, it is expected that the production and demand of boron mines in China will be as follows.

Expected boron ore production and demand table

The above analysis shows that China's boron resources can meet the demand in 2000, and there will be a gap (about 200,000 tons) from 2005, and the gap will be even larger in 2010 and 2020 (about 500,000 tons and 2 million tons). If the annual production capacity of the Dongtaizi section of the Wengquangou boron iron ore mine in Liaoning Fengcheng will be expanded to 1 million t/710,000 tons by 2005, the supply and demand situation of China's boron mines will be basically balanced by 2010. However, there is still a large gap (about 1.5 million tons) to meet the demand in 2020. Only the three ore sections of the Wengquangou mining area (Dongtaizi mining section, Yejiagou mining section, Wengquangou mining section) and the boron resources of the Qinghai-Tibet area will be further developed and utilized, which will basically meet the demand.

Lockstitch Sewing Machine

Lockstitch,Sewing Machine,juki,jack.brother

DONGGUAN CHUANGHUI SEWING MACHINE CO.,LTD , http://www.ch-sewing.com