公开(公告)号：US09879331B2

公开(公告)日：2018-01-30

申请号：US14839354

申请日：2015-08-28

Applicant: Council of Scientific and Industrial Research

Inventor： Byagyadhar Bhoi ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Chinmaya Kumar Sarangi ,  Pravas Ranjan Behera ,  Priyanka Rajput ,  Partha Sarathi Mukherjee ,  Snigdha Priyadarshini

IPC: C21C7/00 ,  C21B15/02 ,  C21B13/00 ,  C21B13/12 ,  C21B15/00

CPC classification number: C21C7/00 ,  C21B13/0026 ,  C21B13/125 ,  C21B15/00 ,  C21B15/02 ,  Y02P10/136

Abstract: The present invention relates to an eco-friendly and single step process for the preparation of high purity iron by using hydrogen plasma in a suitable smelting reactor furnace. Reduction of iron oxide in excess of 99% can be achieved by reducing the iron ore in hydrogen plasma smelting system. The product quality is greatly improved as there is no instance of coke inclusion which otherwise would have carried carbon, sulphur, phosphorous, silica, etc. with it. In addition, this greatly diminishes carbon dioxide emission thereby making the process highly eco-friendly in nature. Apart from these, the process produces water as the only by-product. The process takes care of the green house effect with the non-involvement of gases like carbon dioxide, carbon monoxide during the operation. Thus, the present process is developed to produce high pure iron in a hydrogen plasma reactor without using carbon as reductant which thereby reduces the carbon dioxide emission drastically.

公开(公告)号：US20160060726A1

公开(公告)日：2016-03-03

申请号：US14839354

申请日：2015-08-28

Applicant: Council of Scientific and Industrial Research

Inventor： Byagyadhar Bhoi ,  Barada Kanta Mishra ,  Raja Kishore Paramguru ,  Chinmaya Kumar Sarangi ,  Pravas Ranjan Behera ,  Priyanka Rajput ,  Partha Sarathi Mukherjee ,  Snigdha Priyadarshini

IPC: C22B1/243 ,  C21C7/00 ,  C21C1/00 ,  C21B11/10 ,  C21B3/02

CPC classification number: C21C7/00 ,  C21B13/0026 ,  C21B13/125 ,  C21B15/00 ,  C21B15/02 ,  Y02P10/136

Abstract: The present invention relates to an eco-friendly and single step process for the preparation of high purity iron by using hydrogen plasma in a suitable smelting reactor furnace. Reduction of iron oxide in excess of 99% can be achieved by reducing the iron ore in hydrogen plasma smelting system. The product quality is greatly improved as there is no instance of coke inclusion which otherwise would have carried carbon, sulphur, phosphorous, silica, etc. with it. In addition, this greatly diminishes carbon dioxide emission thereby making the process highly eco-friendly in nature. Apart from these, the process produces water as the only by-product. The process takes care of the green house effect with the non-involvement of gases like carbon dioxide, carbon monoxide during the operation. Thus, the present process is developed to produce high pure iron in a hydrogen plasma reactor without using carbon as reductant which thereby reduces the carbon dioxide emission drastically.

Abstract translation: 本发明涉及一种通过在合适的熔炼反应炉中使用氢等离子体制备高纯度铁的环保和单步法。 通过减少氢等离子体冶炼系统中的铁矿石，可以实现超过99％的氧化铁还原。 产品质量大大提高，因为没有焦炭夹杂物，否则将携带碳，硫，磷，二氧化硅等。 此外，这大大减少了二氧化碳的排放，从而使得该过程具有高度的环保性。 除此之外，该工艺生产的水是唯一的副产品。 该过程在运行过程中不涉及诸如二氧化碳，一氧化碳等气体，处理温室效应。 因此，本发明的方法是在氢等离子体反应器中生产高纯铁而不使用碳作为还原剂，从而显着地减少二氧化碳的排放。