-
公开(公告)号:US07002048B2
公开(公告)日:2006-02-21
申请号:US10944315
申请日:2004-09-16
IPC分类号: C07L37/68
摘要: A method is provided for the efficient, low cost removal of acetol from a phenol stream. The method results in removal of substantially all of the acetol from the phenol stream without the formation of substantial amounts of additional methylbenzofuran. The method also avoids the use of expensive reagents and capital intensive distillation equipment.
-
公开(公告)号:US06303826B1
公开(公告)日:2001-10-16
申请号:US09487656
申请日:2000-01-19
申请人: Manoj V. Bhinde , Scott R. Keenan
发明人: Manoj V. Bhinde , Scott R. Keenan
IPC分类号: C07C4590
摘要: A method for purification of acetone containing at least one oxidizable impurity. The method comprises the steps of: (a) contacting acetone containing at least one oxidizable impurity with a heterogeneous oxidation catalyst in the presence of oxygen for a time and at a temperature sufficient to oxidize at least a portion of at least one of the oxidizable impurities; and (b) substantially separating purified acetone from the resulting mixture obtained from step (a).
摘要翻译: 一种纯化含有至少一种可氧化杂质的丙酮的方法。 该方法包括以下步骤:(a)在氧气存在下使包含至少一种可氧化杂质的丙酮与异相氧化催化剂接触一段时间,并且在足以氧化至少一部分可氧化杂质的温度 ; 和(b)从得自步骤(a)得到的混合物中基本上分离纯化的丙酮。
-
公开(公告)号:US5767272A
公开(公告)日:1998-06-16
申请号:US769974
申请日:1996-12-19
IPC分类号: B01J31/18 , C07C29/132 , C07C29/50 , C07C45/33 , C07C45/36 , C07C45/53 , C07D487/22 , C07D519/00 , C07F15/02
CPC分类号: C07F15/025 , B01J31/1815 , C07C29/132 , C07C29/50 , C07C45/33 , C07C45/36 , C07C45/53 , C07D487/22 , C07D519/00 , C12C11/02 , B01J2531/025 , B01J2531/842 , C07C2101/14 , C07C2101/16
摘要: Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides. Also disclosed is a process for the preparation of meso-halocarbyl-porphyrins which comprises contacting a halocarbyl dipyrromethane with a halocarbyl-substituted aldehyde in the presence of an acid granular solid catalyst. Also disclosed is a process for the preparation of meso-halocarbyl-porphyrins which comprises contacting a halocarbyl dipyrromethane with a halocarbyl-substituted aldehyde in the presence of an acid granular solic catalyst.
摘要翻译: 已经发现,其中卤代烷基含有2至8个碳原子的内消旋烷基卟啉的过渡金属络合物是用于烷烃氧化和氢过氧化物分解的高效催化剂。 还公开了一种制备内消旋咔咔卟啉的方法,其包括在酸性颗粒状固体催化剂存在下使卤代烃基二吡咯烷与卤代烃基取代的醛接触。 还公开了制备内消旋咔咔卟啉的方法,其包括在酸性颗粒状催化剂存在下使卤代烃基二吡咯烷与卤代烃基取代的醛接触。
-
公开(公告)号:US5395988A
公开(公告)日:1995-03-07
申请号:US223090
申请日:1994-04-04
IPC分类号: A62D3/00 , A62D3/37 , A62D101/28 , C07C29/132 , C07C31/12 , C07C35/08 , C07C45/53 , C07C407/00 , C07C29/00 , C07C33/22 , C07C35/14
CPC分类号: A62D3/37 , C07C29/132 , C07C31/12 , C07C35/08 , C07C407/003 , C07C45/53 , A62D2101/28 , C07C2101/14
摘要: Organic hydroperoxides are decomposed by drying a reaction mixture containing the organic hydroperoxide and an organic solvent and contacting the dried reaction mixture with a metal organic ligand catalyst under hydroperoxide decomposition conditions. An organic co-solvent for the hydroperoxide may also be used.
摘要翻译: 通过干燥含有机氢过氧化物和有机溶剂的反应混合物分解有机氢过氧化物,并在氢过氧化物分解条件下使干燥的反应混合物与金属有机配体催化剂接触。 也可以使用氢过氧化物的有机助溶剂。
-
-
-