Recently, a method developed by Chengdu University of Technology to produce high-purity spherical nano-amorphous silicon micropowders using natural powdered quartz has been patented by the State Intellectual Property Office. The patented technology uses low-cost natural high-quality quartz minerals as the basic raw materials, and adopts sol-gel technology to prepare high-purity spherical nano-amorphous silicon that meets the requirements of electronic packaging materials in the presence of dispersants and spherical catalysts. Micropowder broke the monopoly of the technology in a few countries such as the United States, Japan, and Germany, indicating that China's spherical silicon micropowder research has made new significant progress.
Spherical silicon micropowder is mainly used for large-scale integrated circuit packaging and has applications in high-tech fields such as aviation, aerospace, fine chemicals, rewritable optical discs, large-area electronic substrates, special ceramics and daily-use cosmetics, and has a promising market prospect. Experts predict that by 2010, China's demand for spherical silicon micropowder will reach 20,000 to 30,000 tons, and high-purity silicon micropowder to 100,000 tons. The average annual growth rate will exceed 20%. The world's demand for spherical microsilica will exceed 300,000 tons, worth tens of billions of yuan.
With the rapid development of China's microelectronics industry, large-scale, ultra-large-scale integrated circuits have increasingly higher requirements for packaging materials, which not only require ultra-fine, but also require high purity, especially for the spherical shape of particle shape requirements. However, the preparation of spherical silicon micropowder is an interdisciplinary and difficult project. At present, only a few countries, such as the United States, Japan, Germany, Canada and Russia, have mastered the technology.
In order to break the strict seal of foreign countries on China's production of spherical silicon micropowders and special equipment, more than 20 research institutes in China have tackled the technological equipment and made breakthroughs since the "10th Five-Year Plan." The Institute of Process Engineering of the Chinese Academy of Sciences has successfully developed a new process for the preparation of high-purity spherical microsilica; the Research Institute of Building Materials Research and Design Institute of Hubei Province cooperates with the Department of Materials of Tsinghua University to carry out high-purity ultra-fine spherodized silicon micropowders. It has passed provincial appraisal; Wuhan University uses chemical synthesis technology to prepare spherical Silica fine powder, the technical index has reached the level of Japanese KE-P series products of Nippon Shokuba Company; spherical silica micropowder projects for ultra-large scale integrated circuit packaging materials developed by Wuhan Wuhan Shuaier Optoelectronics New Material Co., Ltd. and Sanhui silicon in Mianyang City, Sichuan Province The high-purity ultra-fine spherical silicon micro-powder forming technology projects developed by Materials Co., Ltd. are listed in the National Science and Technology Innovation Fund Project in 2003; the high-temperature melting method developed by Yunnan Supermicro New Material Co., Ltd. produces the spherical fused silica micropowder project, which entered the state in 2004. Specialized high-tech industrialization of materials; Hainan Provincial Bureau of Geological Exploration Powder Materials Engineering Technology Research Center, using selected crystalline silica sand as raw material, successfully made spherical silicon micropowder, which is suitable for electronic plastic sealing materials; August 2005, Jiangsu Province Lianyungang Jingrui quartz industrial development Study high-frequency plasma preparing spherical silica powder key technologies and products bear the hospital, through the ministerial-level appraisal, and has built 50 tons / year pilot production line, the leading domestic technology, the products reach the international advanced level.
In March this year, Lianyungang Donghai Silicon Micro Powder Co., Ltd. undertook the chemical synthesis of spherical micro-silicon powder for micro-scale integrated circuits. Through scientific and technological achievements appraisal hosted by Jiangsu Science and Technology Department, it broke the monopoly of foreign countries in the field of chemical synthesis of spherical silicon micropowders. Status, technology and technological equipment have reached the international advanced level and have filled the domestic gap. In July, China's Kaisheng International Engineering Co., Ltd. and Ning Glass Industry Design Research Institute jointly developed high-purity spherical quartz powder product industrialization preparation technology and special production equipment development projects through the appraisal, its technology, equipment for the domestic initiative, product spherization The main technical indicators such as rate, glass transition rate, and dispersion have reached the international advanced level, achieving continuous and stable industrial production, and a production scale of 450 tons/year has been formed. Products can be used as alternatives to imports.
China is rich in quartz, and has a wide distribution of mineral resources. There are nearly 100 small and large-scale silicon micro-powder plants throughout the country, which basically belong to township enterprises. Most of these production enterprises are small in scale and single in variety. They use the conventional processing equipment of the non-mining industry and lack systematic control measures in the process. As a result, the purity, particle size, and product quality of the silicon micropowder products are not stable enough to compete with imported products. These enterprises can really produce high-purity, ultra-micro silicon micro-powder, mainly distributed in Jiangsu Lianyungang and Xuzhou, Zhejiang Huzhou and Hebei, Qinghai and other places, its flagship product focused on 600 mesh, the use of fields are generally metallurgy, ceramics , electrical products packing and packaging of electronic discrete components.
In order to seize the high-end market, in recent years, some domestic companies have started to build spherical silica powder projects. The electronic grade spherical silicon micropowder project of Shanxi Changzhi Zhuangyitong Silicon Industry Co., Ltd. is a national 863 key scientific research project with a total investment of 52 million yuan. It will be put into production in the first half of this year, and will produce 1,000 tons of electronic grade spherical silicon micropowder annually; Chongqing Jingyi Silicon Material Development The first phase of the 50,000-ton silicon micropowder project was put into production on July 1 this year. During the “Eleventh Five-Year Plan†period, the western silicon industry will be built with 200,000 tons of silicon micropowder, 5,000 tons of spherical microsilica, and 2,000 tons of polysilicon production lines as core projects. Base; Heilongjiang Province Tonghe Baotong Quartz Products Co., Ltd. Introduced key technology of high-frequency plasma preparation of spherical silicon micropowders developed by the Jingrui Quartz Industrial Development Research Institute, Lianyungang City, Jiangsu Province, with a total investment of 87 million yuan and an annual output of 1,000 tons of spherical silicon micropowder. In August this year, preliminary preparations have been completed; the Investment Promotion Bureau of Jiangxi Suichuan County plans to invest more than RMB 100 million to build 5 high-purity and spherical silicon micropowder processing plants and production lines to form an annual output of 4,000 tons of high-purity and spherical silicon micropowders. Capability; Hubei Jinghua Industry Co., Ltd. introduced the latest development of spherical silicon micropowder technology for low-stress epoxy molding materials developed by Wuhan University. Ton/year production capacity.
Spherical silicon micropowder is mainly used for large-scale integrated circuit packaging and has applications in high-tech fields such as aviation, aerospace, fine chemicals, rewritable optical discs, large-area electronic substrates, special ceramics and daily-use cosmetics, and has a promising market prospect. Experts predict that by 2010, China's demand for spherical silicon micropowder will reach 20,000 to 30,000 tons, and high-purity silicon micropowder to 100,000 tons. The average annual growth rate will exceed 20%. The world's demand for spherical microsilica will exceed 300,000 tons, worth tens of billions of yuan.
With the rapid development of China's microelectronics industry, large-scale, ultra-large-scale integrated circuits have increasingly higher requirements for packaging materials, which not only require ultra-fine, but also require high purity, especially for the spherical shape of particle shape requirements. However, the preparation of spherical silicon micropowder is an interdisciplinary and difficult project. At present, only a few countries, such as the United States, Japan, Germany, Canada and Russia, have mastered the technology.
In order to break the strict seal of foreign countries on China's production of spherical silicon micropowders and special equipment, more than 20 research institutes in China have tackled the technological equipment and made breakthroughs since the "10th Five-Year Plan." The Institute of Process Engineering of the Chinese Academy of Sciences has successfully developed a new process for the preparation of high-purity spherical microsilica; the Research Institute of Building Materials Research and Design Institute of Hubei Province cooperates with the Department of Materials of Tsinghua University to carry out high-purity ultra-fine spherodized silicon micropowders. It has passed provincial appraisal; Wuhan University uses chemical synthesis technology to prepare spherical Silica fine powder, the technical index has reached the level of Japanese KE-P series products of Nippon Shokuba Company; spherical silica micropowder projects for ultra-large scale integrated circuit packaging materials developed by Wuhan Wuhan Shuaier Optoelectronics New Material Co., Ltd. and Sanhui silicon in Mianyang City, Sichuan Province The high-purity ultra-fine spherical silicon micro-powder forming technology projects developed by Materials Co., Ltd. are listed in the National Science and Technology Innovation Fund Project in 2003; the high-temperature melting method developed by Yunnan Supermicro New Material Co., Ltd. produces the spherical fused silica micropowder project, which entered the state in 2004. Specialized high-tech industrialization of materials; Hainan Provincial Bureau of Geological Exploration Powder Materials Engineering Technology Research Center, using selected crystalline silica sand as raw material, successfully made spherical silicon micropowder, which is suitable for electronic plastic sealing materials; August 2005, Jiangsu Province Lianyungang Jingrui quartz industrial development Study high-frequency plasma preparing spherical silica powder key technologies and products bear the hospital, through the ministerial-level appraisal, and has built 50 tons / year pilot production line, the leading domestic technology, the products reach the international advanced level.
In March this year, Lianyungang Donghai Silicon Micro Powder Co., Ltd. undertook the chemical synthesis of spherical micro-silicon powder for micro-scale integrated circuits. Through scientific and technological achievements appraisal hosted by Jiangsu Science and Technology Department, it broke the monopoly of foreign countries in the field of chemical synthesis of spherical silicon micropowders. Status, technology and technological equipment have reached the international advanced level and have filled the domestic gap. In July, China's Kaisheng International Engineering Co., Ltd. and Ning Glass Industry Design Research Institute jointly developed high-purity spherical quartz powder product industrialization preparation technology and special production equipment development projects through the appraisal, its technology, equipment for the domestic initiative, product spherization The main technical indicators such as rate, glass transition rate, and dispersion have reached the international advanced level, achieving continuous and stable industrial production, and a production scale of 450 tons/year has been formed. Products can be used as alternatives to imports.
China is rich in quartz, and has a wide distribution of mineral resources. There are nearly 100 small and large-scale silicon micro-powder plants throughout the country, which basically belong to township enterprises. Most of these production enterprises are small in scale and single in variety. They use the conventional processing equipment of the non-mining industry and lack systematic control measures in the process. As a result, the purity, particle size, and product quality of the silicon micropowder products are not stable enough to compete with imported products. These enterprises can really produce high-purity, ultra-micro silicon micro-powder, mainly distributed in Jiangsu Lianyungang and Xuzhou, Zhejiang Huzhou and Hebei, Qinghai and other places, its flagship product focused on 600 mesh, the use of fields are generally metallurgy, ceramics , electrical products packing and packaging of electronic discrete components.
In order to seize the high-end market, in recent years, some domestic companies have started to build spherical silica powder projects. The electronic grade spherical silicon micropowder project of Shanxi Changzhi Zhuangyitong Silicon Industry Co., Ltd. is a national 863 key scientific research project with a total investment of 52 million yuan. It will be put into production in the first half of this year, and will produce 1,000 tons of electronic grade spherical silicon micropowder annually; Chongqing Jingyi Silicon Material Development The first phase of the 50,000-ton silicon micropowder project was put into production on July 1 this year. During the “Eleventh Five-Year Plan†period, the western silicon industry will be built with 200,000 tons of silicon micropowder, 5,000 tons of spherical microsilica, and 2,000 tons of polysilicon production lines as core projects. Base; Heilongjiang Province Tonghe Baotong Quartz Products Co., Ltd. Introduced key technology of high-frequency plasma preparation of spherical silicon micropowders developed by the Jingrui Quartz Industrial Development Research Institute, Lianyungang City, Jiangsu Province, with a total investment of 87 million yuan and an annual output of 1,000 tons of spherical silicon micropowder. In August this year, preliminary preparations have been completed; the Investment Promotion Bureau of Jiangxi Suichuan County plans to invest more than RMB 100 million to build 5 high-purity and spherical silicon micropowder processing plants and production lines to form an annual output of 4,000 tons of high-purity and spherical silicon micropowders. Capability; Hubei Jinghua Industry Co., Ltd. introduced the latest development of spherical silicon micropowder technology for low-stress epoxy molding materials developed by Wuhan University. Ton/year production capacity.
5H-KB series of batch type circulation grain drying machine is mainly for the food enterprises,management profession of improving economic efficiency,reduce the grain moisture,ensure safe storage;For farming cooperatives reduce air link,reduce the labor intensity,saving the cost of production and design of drying equipment,comprehensive advantages at home and abroad a variety of dryer.
This Grain Drying Equipment is widely used in grain materials such as grain, such as rice,corn,wheat,soybean,sorghum,rapeseed,etc.,and also suitable for seed drying.At the same time,the granule. It can be used in ricepaddyrice, wheat, beans, corn, sunflower seeds,rapeseed,sorghum,seeds, etc.
Farm Corn Dryer,Corn Drying Machine,Farm Grain Dryer Machine,Rice Grain Dryer Machine
JINFENG DRYING EQUIPMENT CO.,LTD , https://www.jf-graindry.com