发明名称 |
VERWENDUNG VON KOHLENASCHE MIT HOHEM KOHLENSTOFFGEHALT |
摘要 |
<p>A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typically is derived from air or an air/oxygen combination in an exothermic reaction and the heat generated is exploited in the melting process. In this way the gaseous products will typically comprise nitrogen, unreacted oxygen and carbon dioxide, and heat energy can be readily recovered from the hot off gas products evolving during the combustion reaction. The synthetic slag may be pelletized and employed as lightweight mineral aggregate or milled to cement fineness to provide slag cement.</p> |
申请公布号 |
DE60302138(D1) |
申请公布日期 |
2005.12.08 |
申请号 |
DE2003602138 |
申请日期 |
2003.01.28 |
申请人 |
LAFARGE CANADA INC., MONTREAL |
发明人 |
OATES, DAVID BRIDSON;WHELLOCK, GRAHAM;ZACARIAS, SOUZA |
分类号 |
C04B7/26;F27B3/18;F27B3/22;F27B3/26;F27D3/16;F27D3/18;F27D9/00;F27D15/00;F27D17/00;(IPC1-7):C04B7/26 |
主分类号 |
C04B7/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|