专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011136517A2 METHOD OF PREPARING SILICON TETRAFLUORIDE BY USING CRYSTALLINE SILICA 审中-公开
标题翻译：使用结晶二氧化硅制备硅四氯化物的方法
公开(公告)号：WO2011136517A2
公开(公告)日：2011-11-03
申请号：PCT/KR2011/002981
申请日：2011-04-25
申请人： KCC CORPORATION , KANG, Kyoung Hoon , CHO, Yeon Seok , KIM, Se Jong , YOO, Young Shin , JUN, Moon Gue , SHIM, Jeong Mo , LEE, Hyun Dong , KIM, Ji Hye , SONG, Min Wook
发明人： KANG, Kyoung Hoon , CHO, Yeon Seok , KIM, Se Jong , YOO, Young Shin , JUN, Moon Gue , SHIM, Jeong Mo , LEE, Hyun Dong , KIM, Ji Hye , SONG, Min Wook
IPC分类号： C01B33/107 , C01B9/08
CPC分类号： C01B9/08 , C01B33/10705
摘要： The present invention relates to a method of preparing silicon tetrafluoride (STF, SiF 4 ) by using crystalline silica (SiO 2 ). More specifically, the present invention relates to a method of preparing silicon tetrafluoride by reacting finely divided crystalline silica and hydrogen fluoride (HF) in the presence of concentrated sulfuric acid in a continuous manner. According to the present invention, silicon tetrafluoride can be economically prepared with high yield from crystalline silica which exists abundantly in the natural world, and the process productivity, workability and controllability can be improved remarkably. In addition, the problem of corrosion in the recycling process by concentrating diluted sulfuric acid can be solved through controlling the ratio between reactants such that no incorporated hydrogen fluoride remains after the reaction, or on the other hand the difficulty in filtering the product by finely divided particles can be avoided through controlling the ratio between reactants such that the crystalline silica reactant is consumed completely. Furthermore, since the used sulfuric acid can be isolated and recycled, the generation of discarded sulfuric acid can be minimized.
摘要翻译：本发明涉及通过使用结晶二氧化硅（SiO 2）制备四氟化硅（STF，SiF 4）的方法。更具体地说，本发明涉及通过在浓硫酸的存在下以连续的方式使细碎的结晶二氧化硅和氟化氢（HF）反应制备四氟化硅的方法。根据本发明，可以从自然界中大量存在的结晶二氧化硅以高产率经济地制备四氟化硅，并且可以显着提高工艺生产率，可加工性和可控性。此外，通过浓缩稀硫酸的再循环过程中的腐蚀问题可以通过控制反应物之间的比例来解决，使得在反应后不残留加入的氟化氢，或者另一方面难以通过细分的过滤产物可以通过控制反应物之间的比例使得结晶二氧化硅反应物完全消耗来避免颗粒。此外，由于使用的硫酸可以被分离和再循环，所以废弃硫酸的产生可以最小化。

2. 发明申请

WO2011129563A2 METHOD OF PREPARING ANHYDROUS HYDROGEN FLUORIDE BY USING SODIUM ALUMINUM TETRAFLUORIDE AND REACTION DEVICE FOR THE SAME 审中-公开
标题翻译：通过使用四氢呋喃铝和其反应装置制备无水氢氟酸的方法
公开(公告)号：WO2011129563A2
公开(公告)日：2011-10-20
申请号：PCT/KR2011/002523
申请日：2011-04-11
申请人： KCC CORPORATION , KANG, Kyoung Hoon , CHO, Yeon Seok , KIM, Se Jong , LEE, Hyun Dong , SHIM, Jeong Mo , LEE, Won Kyu , SONG, Min Wook
发明人： KANG, Kyoung Hoon , CHO, Yeon Seok , KIM, Se Jong , LEE, Hyun Dong , SHIM, Jeong Mo , LEE, Won Kyu , SONG, Min Wook
IPC分类号： C01B7/19 , C01B9/08 , C01B17/96 , C01D5/00
CPC分类号： C01B7/191 , C01B9/08 , C01F7/745 , C01F7/762
摘要： The present invention relates to a method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and a reaction device for the same. More specifically, the present invention relates to a method of preparing anhydrous hydrogen fluoride by mixing and pulverizing sodium aluminum tetrafluoride (NaAlF 4 ) as a fluoride source with sulfuric acid in a preliminary reactor to obtain gaseous anhydrous hydrogen fluoride (HF) and solid-state material, and treating the obtained solid-state material with heat in a main reactor to obtain gaseous anhydrous hydrogen fluoride and solid sodium aluminum sulfate (NaAl(SO 4 ) 2 ), and a reaction device for the same. According to the present invention, as a fluoride source for preparing anhydrous hydrogen fluoride, an NaAlF 4 byproduct of monosilane production can be reused instead of expensive fluorspar (CaF 2 ), which is very economical and friendly to the environment. In addition, the production yield of HF can be remarkably improved since a generation of bulky solids is suppressed by uniformly dispersing the viscous reaction intermediate of calcium hydrogen sulfate (Ca(HSO 4 ) 2 ) and the reactants are pulverized finely.
摘要翻译：本发明涉及使用四氟化钠铝制备无水氟化氢的方法及其制备方法。更具体地说，本发明涉及一种通过在预备反应器中混合并粉碎四氟化钠（NaAlF 4）作为氟化物源与硫酸来制备无水氟化氢的方法，以获得气态无水氟化氢（HF）和固体材料并在主反应器中用热量处理得到的固态材料，得到气态无水氟化氢和固体硫酸铝钠（NaAl（SO 4）2）及其反应装置。根据本发明，作为制备无水氟化氢的氟化物源，可以重复使用甲硅烷生产的NaAlF 4副产物，而不是昂贵的氟石（CaF 2），这对环境是非常经济和友好的。此外，由于通过均匀分散硫酸氢钙（Ca（HSO 4）2）的粘性反应中间体而抑制了大体积固体的产生，因此HF的生产率可以显着提高，并且将反应物细粉碎。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式