发明名称 |
Processo de eliminação de tinta de fibras de sucata de papel composição usada para eliminação de tinta de sucata de papel e suspensão aquosa de sucata de papel |
摘要 |
<p>This invention is a method for deinking wastepaper by disintegrating the waste paper in an carbonate aqueous solution containing sodium sulfite and sodium carbonate to produce a fibrous slurry having a pH of at least 7.5, separating the ink from the fibers and removing the ink from the slurry. A composition useful for deinking fiber consists of a relative proportion of sodium sulfite to sodium carbonate between about 95:5 and about 50:50, and a surfactant.</p> |
申请公布号 |
BR9602143(A) |
申请公布日期 |
1998.11.03 |
申请号 |
BR19969602143 |
申请日期 |
1996.05.03 |
申请人 |
SOLVAY MINERALS, INC. |
发明人 |
EMMETT J. EVANS;STUART G. GUTHRIE |
分类号 |
D21C5/02;(IPC1-7):D21C5/02 |
主分类号 |
D21C5/02 |
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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