PURIFICATION OF ACETIC ACID FROM WOOD ACETYLATION PROCESS
摘要
<p>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.</p>
申请公布号
WO2009120257(A1)
申请公布日期
2009.10.01
申请号
WO2009US01228
申请日期
2009.02.27
申请人
CELANESE INTERNATIONAL CORPORATION;WARNER, R., JAY;MEILCHEN, MELCHIOR, A.;STREB, MICHAEL, O.;POWELL, NATHAN, K.;SOELLNER, ROLF
发明人
WARNER, R., JAY;MEILCHEN, MELCHIOR, A.;STREB, MICHAEL, O.;POWELL, NATHAN, K.;SOELLNER, ROLF