发明名称 |
PURIFICATION OF ACETIC ACID FROM WOOD ACETYLATION PROCESS |
摘要 |
A method of purifying acetic acid containing terpene and terpenoid impurities, includes: (a) supplying acetic acid containing terpene or terpenoid impurities and water to a distillation column; (b) azeotropically removing terpene or terpenoid impurities from the mixture of acetic acid and water supplied to the column as distillate; and (c) withdrawing a product stream from the column comprising acetic acid purified of terpene or terpenoid impurities. The method is particularly effective for purifying acetic acid recovered from a wood purification process.
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申请公布号 |
CA2714953(A1) |
申请公布日期 |
2009.10.01 |
申请号 |
CA20092714953 |
申请日期 |
2009.02.27 |
申请人 |
CELANESE INTERNATIONAL CORPORATION |
发明人 |
WARNER, R. JAY;MEILCHEN, MELCHIOR A.;STREB, MICHAEL O.;POWELL, NATHAN K.;SOELLNER, ROLF |
分类号 |
C07C51/46;B27K3/02;B27K3/36;C07C53/08 |
主分类号 |
C07C51/46 |
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