A PROCESS FOR DEMINERALIZATION AND DESULPHURIZATION OF COAL USING SODIUM CARBONATE AND ACID SOLUTIONS

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专利权人:

发明人:

BORTHAKUR PC.,MUKHERJEE S,SENGUPTA P,MAHIUDDIN S.,BARUAH BP.,BORDOLOI D,BARUAH AC,SAIKIA PC.

申请号：

IN2470/DEL/2006

公开号：

IN255788B

申请日:

2006.11.16

申请国别(地区):

IN

年份:

2013

代理人:

摘要：

The present invention provides a process for demineralization and desulphurization of coal. The process of demineralization and desulphurization of coal is carried out by using aqueous sodium carbonate and acid solutions, at atmospheric pressure and at relatively low temperature. The process for demineralization and desulphurization of high sulphur sub bituminous coal using aqueous sodium carbonate solution (2-16% w/v) is less corrosive in comparison to other alkalies like sodium hydroxide, potassium hydroxide etc. used by previous workers.

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