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1. 发明专利

JP2009234831A Silicon production apparatus 审中-公开
标题翻译：硅生产设备
公开(公告)号：JP2009234831A
公开(公告)日：2009-10-15
申请号：JP2008081064
申请日：2008-03-26
申请人： Kinotech Solar Energy Corp , 株式会社キノテック・ソーラーエナジー
发明人： ANSAKI MASAAKI , TAKEUCHI YOSHINORI , SAKAKI DAISUKE
IPC分类号： C01B33/033
摘要： PROBLEM TO BE SOLVED: To provide a silicon production apparatus in which silicon deposition on a wall surface of a reactor, etc., is avoided and the amount of silicon which is discharged with gas discharged from the reactor and is not recovered and the loss of unreacted raw material gas are minimized, and which can continuously mass-produce solid silicon of constant quality and constant form.
SOLUTION: The silicon production apparatus includes a first reactor 1 and a second reactor 2 connected to the first reactor on a downstream side of the first reactor. In the first reactor, a silicon compound is reduced with zinc to form solid silicon. In the second reactor, while using solid silicon of relatively small crystal size in the solid silicon formed in the first reactor as seed crystals, a silicon compound is reduced with zinc to form solid silicon.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种硅制备装置，其中避免了在反应器的壁表面上的硅沉积以及从反应器排出并且没有回收的气体排出的硅的量，以及未反应的原料气体的损失最小化，可连续批量生产恒定质量和恒定形式的固体硅。解决方案：硅制造装置包括在第一反应器的下游侧连接到第一反应器的第一反应器1和第二反应器2。在第一反应器中，用锌还原硅化合物以形成固体硅。在第二反应器中，当在第一反应器中形成的固体硅中使用晶体尺寸较小的固态硅作为晶种时，用锌还原硅化合物以形成固态硅。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009242153A Method of producing silicon 审中-公开
标题翻译：生产硅的方法
公开(公告)号：JP2009242153A
公开(公告)日：2009-10-22
申请号：JP2008089490
申请日：2008-03-31
申请人： Kinotech Solar Energy Corp , 株式会社キノテック・ソーラーエナジー
发明人： ANSAKI MASAAKI , TAKEUCHI YOSHINORI , SAKAKI DAISUKE
IPC分类号： C01B33/033 , C25C1/16
CPC分类号： Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a method of producing silicon by a zinc reduction method which is can recover and recycling zinc from by-product zinc chloride by a safe method simple in the operation or the maintenance. SOLUTION: The method of manufacturing silicon includes: a reduction step S1 of obtaining silicon and zinc chloride gas by bringing silicon tetrachloride gas into contact with zinc; zinc extraction steps S2, S2' of extracting a zinc component into an organic solvent phase by bringing a zinc chloride solution into contact with an organic solvent containing an acidic extracting agent and immiscible with an aqueous solution after the zinc chloride gas produced in the reducing step is recovered as the zinc chloride aqueous solution; a zinc back extraction step S3 of obtaining a zinc sulfate aqueous solution by back-extracting the organic solvent containing the zinc component obtained in the zinc extraction step with diluted sulfuric acid; and an electrolysis step S4 of electrolyzing the zinc sulfate aqueous solution obtained in the zinc back extraction step to obtain zinc. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过锌还原法生产硅的方法，其可以通过操作或维护简单的安全方法从副产物氯化锌中回收和再循环锌。解决方案：制造硅的方法包括：通过使四氯化硅气体与锌接触来获得硅和氯化锌气体的还原步骤S1; 通过在还原步骤中产生的氯化锌气体之后使氯化锌溶液与含有酸性萃取剂的有机溶剂接触，并与水溶液不混溶，将锌组分萃取到有机溶剂相中的锌萃取步骤S2，S2' 作为氯化锌水溶液回收; 锌回萃取步骤S3，通过用稀硫酸反萃取在锌萃取步骤中得到的含有锌成分的有机溶剂，得到硫酸锌水溶液; 以及电解步骤S4，对在锌回萃取步骤中得到的硫酸锌水溶液进行电解，得到锌。版权所有（C）2010，JPO＆INPIT

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