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1. 发明授权

US06555720B1 Method and system for producing 1,4-butanediol 有权
标题翻译：生产1,4-丁二醇的方法和系统
公开(公告)号：US06555720B1
公开(公告)日：2003-04-29
申请号：US09560453
申请日：2000-04-28
申请人： Lionel O'Young , Kazuyuki Ookubo , Nobuo Toratani , Hiroshi Iwasaka
发明人： Lionel O'Young , Kazuyuki Ookubo , Nobuo Toratani , Hiroshi Iwasaka
IPC分类号： C07C2700
CPC分类号： C07C29/095 , C07C31/207
摘要： A method and system for producing 1,4-butanediol (1,4-BG), and optionally additionally tetrahydrofuran (THF), that promotes more efficient usage of water (H2O) is provided. In one aspect, the method is comprised of supplying at least one feed stream including 1,4-diacetoxybutane (1,4-DAB), 1,4-hydroxyacetoxybutane (1,4-HAB) and H2O to at least one reactor. 1,4-DAB, 1,4-HAB and H2O are reacted in the reactor to produce at least one effluent stream that includes 1,4-BG, 1,4-HAB, H2O, unreacted 1,4-DAB and acetic acid. The effluent stream is supplied to a separation system having one or more separators where at least a portion of the 1,4-HAB is removed from the effluent stream and recycled back to the reaction. Alternatively, 1,4-HAB may be supplied directly to the reactor as a feed stream, or a combination of feed stream and recycled 1,4-HAB may be used.
摘要翻译：提供了促进更有效使用水（H 2 O）的1,4-丁二醇（1,4-BG）和任选另外的四氢呋喃（THF）的方法和系统。一方面，该方法包括向至少一个反应器供应包含1,4-二乙酰氧基丁烷（1,4-DAB），1,4-羟基乙酰氧基丁烷（1,4-HAB）和H 2 O的至少一种进料流。 1,4-DAB，1,4-HAB和H 2 O在反应器中反应以产生至少一种流出物流，其包括1,4-BG，1,4-HAB，H 2 O，未反应的1,4-DAB和乙酸。将流出物流供给至具有一个或多个分离器的分离系统，其中将至少一部分1,4-HAB从流出物流中除去并循环回反应物。或者，可以将1,4-HAB作为进料流直接供给到反应器中，或者可以使用进料流和再循环的1,4-HAB的组合。

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