公开(公告)号：US08728195B2

公开(公告)日：2014-05-20

申请号：US13584122

申请日：2012-08-13

申请人： Bhagyadhar Bhoi ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Siddharth Kumar Pradhan ,  Partha Sarathi Mukherjee ,  Sambita Sahoo ,  Snigdha Priyadarshini ,  Priyanka Rajput ,  Subir Kumar Das

发明人： Bhagyadhar Bhoi ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Siddharth Kumar Pradhan ,  Partha Sarathi Mukherjee ,  Sambita Sahoo ,  Snigdha Priyadarshini ,  Priyanka Rajput ,  Subir Kumar Das

IPC分类号： C21B13/12

CPC分类号： F27B5/14 ,  C21B13/125 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/128 ,  Y02P10/136

摘要： Direct reduced iron (DRI) is obtained from iron ore by reduction using microwave assisted low temperature hydrogen plasma. The process includes steps of: (a) loading iron ore onto a sample holder (b) placing the sample holder inside a chamber followed by evacuating the chamber; (c) introducing hydrogen gas in the chamber at flow rate ranging between 100-500 standard cubic centimeters (sccm) followed by heating the sample holder and the iron ore at a temperature ranging between 300-800° C., a pressure ranging between 20-100 torr and a microwave power ranging between 500-1500 W to obtain direct reduced iron; and (d) cooling the direct reduced iron obtained in step (c) by flowing hydrogen at flow rate of about 300 sccm.

摘要翻译： 通过使用微波辅助低温氢等离子体还原，从铁矿石获得直接还原铁（DRI）。 该方法包括以下步骤：（a）将铁矿石装载到样品架上（b）将样品架放置在室内，然后抽空室; （c）以100-500标准立方厘米（sccm）之间的流速在室中引入氢气，随后在300-800℃的温度范围内加热样品保持器和铁矿石，压力范围为20 -100托和微波功率范围在500-1500 W之间，以获得直接还原铁; 和（d）通过以约300sccm的流速流动氢来冷却步骤（c）中获得的直接还原铁。

公开(公告)号：US20130047782A1

公开(公告)日：2013-02-28

申请号：US13584122

申请日：2012-08-13

申请人： BHAGYADHAR BHOI ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Siddharth Kumar Pradhan ,  Partha Sarathi Mukherjee ,  Sambita Sahoo ,  Snigdha Priyadarshini ,  Priyanka Rajput ,  Subir Kumar Das

发明人： BHAGYADHAR BHOI ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Siddharth Kumar Pradhan ,  Partha Sarathi Mukherjee ,  Sambita Sahoo ,  Snigdha Priyadarshini ,  Priyanka Rajput ,  Subir Kumar Das

IPC分类号： C21B13/12

CPC分类号： F27B5/14 ,  C21B13/125 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/128 ,  Y02P10/136

摘要： A green process for the preparation of direct reduced iron (DRI) from iron ore by reduction using microwave assisted low temperature hydrogen plasma, wherein the said process includes the steps of: loading of iron ore onto the sample holder followed by evacuating of the chamber; introducing the hydrogen gas in the chamber at flow rate ranging between 100-500 sccm followed by heating the holder and sample at temperature ranging between 300-800° C. and pressure ranging between 20-100 torr and at microwave power ranging between 500-1500 W to obtain direct reduced iron; and cooling the direct reduced iron as obtained in step (b) at temperature ranging between 300-800° C. by flowing hydrogen at flow rate of about 300 sccm.

摘要翻译： 一种用于通过微波辅助低温氢等离子体还原从铁矿石制备直接还原铁（DRI）的绿色方法，其中所述方法包括以下步骤：将铁矿石装载到样品架上，然后抽空室; 以100-500sccm之间的流速引入室内的氢气，然后在300-800℃之间的温度范围内加热保持器和样品，压力范围在20-100托之间，微波功率范围在500-1500之间 W获得直接还原铁; 并且在300-800℃的温度范围内通过以大约300sccm的流速流动氢来冷却在步骤（b）中获得的直接还原铁。