发明名称 |
PROCESS FOR PRODUCING REGENERATED HUMIC ACIDS FROM COAL |
摘要 |
A process is described for producing humic acids by coal oxidation effected in the dry phase with oxygen or an oxygen-nitrogen mixture in a fluidized bed reactor using coal of up to 3 mm particle size and operating at a temperature of between 150 and 300 DEG C at a partial oxygen feed pressure of between 0.7 and 5 ata, at a total pressure not exceeding 40 ata and for a contact time of between 30 and 600 minutes, characterised by recycling part of the exit gases from the reactor back to the reactor after cooling them to a temperature of between 50 and 100 DEG C. <IMAGE> |
申请公布号 |
ZA9109262(B) |
申请公布日期 |
1992.08.26 |
申请号 |
ZA19910009262 |
申请日期 |
1991.11.22 |
申请人 |
ENIRICERCHE S.P.A. |
发明人 |
VINCENZO CALEMMA;VINCENZO PICCOLO;RICCARDO RAUSA |
分类号 |
C10B49/10;B01J20/24;C08H6/00;C08H7/00;C10L9/02 |
主分类号 |
C10B49/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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