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1. 发明专利

JP2010180472A Method for separating zinc from galvanized steel scrap 有权
标题翻译：从镀锌钢板上分离锌的方法
公开(公告)号：JP2010180472A
公开(公告)日：2010-08-19
申请号：JP2009027668
申请日：2009-02-09
申请人： Chubu Electric Power Co Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 中部電力株式会社
发明人： KIZAKI TSUTOMU , KITAHARA TADAKI , TANAHASHI NAOTAKA , TABATA MASAHIRO , YAMADA TAKAHIRO
IPC分类号： C22B19/30 , C22B5/10 , C22B5/16 , C22B7/00 , C22B9/22 , C22B19/12 , C22B19/34 , F27D11/06
CPC分类号： Y02P10/232 , Y02P10/234 , Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide a method for separating zinc from a galvanized steel scrap in which zinc can be efficiently removed without dissolving and sticking iron. SOLUTION: The method for separating zinc from a galvanized steel scrap includes heating the scrap from the temperature (770°C) showing the magnetic transformation point of iron to the temperature (910°C) showing the transformation point from α-iron to γ-iron in the presence of a reducing agent in a dezincification furnace 11, reducing zinc oxide contained in the galvanized steel scrap to convert it to metal zinc, and separating the metal zinc by volatilization. The reducing agent is carbon such as carbon powder. The amount of the reducing agent to be added is preferably 0.1-10 mass% based on the galvanized steel scrap. The pressure in the dezincification furnace 11 is preferably set to ordinary pressure to a reduced pressure of 101.15-81.25 kPa. The inside of the dezincification furnace 11 is preferably set to a reducing atmosphere or an inert gas atmosphere. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种从镀锌钢屑分离锌的方法，其中锌可以有效去除而不溶解和粘附铁。解决方案：从镀锌废钢中分离锌的方法包括从显示铁的磁相变点的温度（770℃）将废料加热到显示出与α-铁的相变点的温度（910℃）在脱锌炉11中在还原剂存在下将γ铁还原，还原镀锌钢屑中所含的氧化锌，将其转化为金属锌，通过挥发分离金属锌。还原剂是碳，如碳粉。还原剂的添加量相对于镀锌钢屑优选为0.1〜10质量％。脱锌炉11中的压力优选设定为常压至101.15〜81.25kPa的减压。脱锌炉11的内部优选设置为还原气氛或惰性气体气氛。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2011080127A Zinc separation method and appliance for separating zinc 审中-公开
标题翻译： ZINC分离方法和器具分离ZINC
公开(公告)号：JP2011080127A
公开(公告)日：2011-04-21
申请号：JP2009234484
申请日：2009-10-08
申请人： Chuo Yogyo Kk , Toyota Motor Corp , トヨタ自動車株式会社 , 中央窯業株式会社
发明人： KIZAKI TSUTOMU , YOSHIHARA HARUJI , TABATA MASAHIRO , ITO MASAHARU , NAKABAYASHI MASAOKI
IPC分类号： C22B19/30 , C22B1/00 , C22B7/00 , C22B9/02 , F27D3/12
CPC分类号： Y02P10/232 , Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a zinc separation method and an appliance for separating zinc which separate zinc from iron material having deposited zinc while preventing oxidation of iron material part of the iron material having deposited zinc although there is an oxidizing atmosphere in a furnace. SOLUTION: Galvanized steel sheet scraps 1, 1, ... and calcined cokes 2, 2, ... are stored in a basket 11 with an opening part 11a formed therein, at the same time, a barrier layer 3 made of the calcined cokes 2 is formed between the galvanized steel sheet scraps 1, 1, ... and the opening part 11a, the basket 11 is arranged in a heating furnace 100 of the oxidizing atmosphere, the temperature in the heating furnace 100 is raised to 1,050°C and, thereby, zinc is vaporized from the galvanized steel sheet scraps 1, 1, .... COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：为了提供锌分离方法和分离锌的设备，锌分离锌与具有沉积锌的铁材料，同时防止具有沉积锌的铁材料的铁材料部分的氧化，尽管氧化气氛一炉解决方案：将镀锌钢板屑1,1和...和煅烧焦炭2,2 ...储存在其中形成有开口部分11a的篮11中，同时制成阻挡层3 在镀锌钢板废料1,1，...和开口部11a之间形成煅烧焦炭2，将筐11配置在氧化气氛的加热炉100中，将加热炉100中的温度升高至1050℃，由此锌从镀锌钢板屑1,1 ...中蒸发。版权所有（C）2011，JPO＆INPIT

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