发明名称 |
Wiederaufbereitung von Celluloseestern aus Abfallprodukten die bei der Zigarettenherstellung entstehen |
摘要 |
<p>A process for recycling waste from the manufacture filtered cigarettes is disclosed herein. The process comprises the following steps: A waste stream from the manufacture of filtered cigarettes is provided. The waste stream includes tobacco, cellulose ester polymer, and paper. A substantial portion of the cellulose ester polymer is separated from this waste stream. This cellulose ester polymer is contacted with a sufficient volumne of fluid to extract contaminants therefrom. The fluid is under pressure and temperature conditions, such that the fluid is a supercritical or a near supercritical fluid.</p> |
申请公布号 |
DE69301892(D1) |
申请公布日期 |
1996.04.25 |
申请号 |
DE1993601892 |
申请日期 |
1993.10.21 |
申请人 |
HOECHST CELANESE CORP., SOMERVILLE, N.J., US |
发明人 |
SCHIRALDI, DAVID ANTHONY, CHARLOTTE, NORTH CAROLINA, US |
分类号 |
B09B3/00;A24C5/36;A24D3/02;B01D11/02;C08J11/06;(IPC1-7):B01D11/02 |
主分类号 |
B09B3/00 |
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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