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1. 发明授权

US4356339A Process for isolating and recovering butene-1 of high purity 失效
标题翻译：用于分离和回收高纯度丁烯-1的方法
公开(公告)号：US4356339A
公开(公告)日：1982-10-26
申请号：US328317
申请日：1981-12-07
申请人： Masao Imaizumi , Tetsuya Takezono , Takaaki Amari , Yutaka Oguchi
发明人： Masao Imaizumi , Tetsuya Takezono , Takaaki Amari , Yutaka Oguchi
IPC分类号： C07C7/177 , C07C11/08 , C07C7/12
CPC分类号： C07C11/08 , C07C7/177 , Y02P20/582
摘要： A process for isolating and recovering butene-1 of high purity at a high yield is provided. The process comprises the steps of continuously passing a butane-butene fraction containing 0.1 to 15 wt % of isobutylene and 10 to 50 wt % of butene-1 through a first reactor packed with a strongly acidic cation exchange resin having an average particle size of from 0.2 to 10 mm at a temperature of from 30.degree. to 100.degree. C. and at a space velocity of liquid of from 0.1 to 50 hr.sup.-1 under a pressure of from 1 to 50 atm., dividing the output mixture flowing out of said first reactor into two flows at a division ratio in flow rate of 1.about.15:1, recirculating the first flow having the flow rate of 1.about.15 into said first reactor packed with said cation exchange resin, passing the second flow having the flow rate of 1 through a second reactor packed with a strongly acidic cation exchange resin under the conditions similar to those of the first reactor, distilling the output flow from said second reactor to separate the same into a heavy hydrocarbon fraction containing oligomers of isobutylene and a light hydrocarbon fraction containing butane and butene, and rectifying said light hydrocarbon fraction to isolate butene-1 from other C.sub.4 -hydrocarbons.
摘要翻译：提供了以高产率分离和回收高纯度的丁烯-1的方法。该方法包括以下步骤：将含有0.1至15重量％的异丁烯和10至50重量％的丁烯-1的丁烷 - 丁烯馏分连续通过填充有平均粒度为在30〜100℃的温度下，在1〜50个大气压的压力为0.1〜50小时-1的液体空间速度下0.2〜10mm，将输出混合物从所述将第一反应器分成两个流量，流速为1分钟的分流比为15:1，将具有1分歧15的流速的第一流再循环到装有阳离子交换树脂的第一反应器中，使具有流速的第二流在与第一反应器类似的条件下通过填充有强酸性阳离子交换树脂的第二反应器蒸馏来自第二反应器的输出流，将其分离成含有低聚物的重质烃馏分 rs的异丁烯和含有丁烷和丁烯的轻烃馏分，并精馏所述轻烃馏分以将丁烯-1与其它C 4烃分离。

2. 发明授权

US4645576A Process for isolating and recovering butene-1 of high purity 失效
标题翻译：用于分离和回收高纯度丁烯-1的方法
公开(公告)号：US4645576A
公开(公告)日：1987-02-24
申请号：US608746
申请日：1984-05-10
申请人： Tetsuya Takezono , Takaaki Amari , Hirosuke Imai
发明人： Tetsuya Takezono , Takaaki Amari , Hirosuke Imai
IPC分类号： B01J21/12 , C07B61/00 , C07C1/00 , C07C7/00 , C07C7/177 , C07C11/08 , C07C67/00 , B01D3/34
CPC分类号： C07C7/005 , C07C7/177 , Y10S203/06
摘要： This invention provides a process for isolating and recovering butene-1 of high purity at high yield. Firstly, a butane-butene fraction containing 0.1 to 7 wt % of isobutylene, 10 to 50 wt % of butene-1 and 5 to 20 wt % of isobutane is rectified to reduce the content of isobutane to not more than 0.1 wt %. Then, the rectified butane-butene fraction is passed through a reactor packed with an extrusion molded silica-alumina catalyst to polymerize isobutylene at a reaction velocity as high as 50 times or more of that of butene-1, thus forming oligomers of isobutylene. Finally, the hydrocarbon mixture from the reactor is rectified to remove the oligomers of isobutylene and the other C.sub.4 -hydrocarbons.
摘要翻译：本发明提供以高产率分离和回收高纯度的丁烯-1的方法。首先，将含有0.1〜7重量％的异丁烯，10〜50重量％的丁烯-1和5〜20重量％的异丁烷的丁烷 - 丁烯馏分进行精馏，将异丁烷的含量降低至0.1重量％以下。然后，将精馏的丁烷 - 丁烯馏分通过填充有挤出成型二氧化硅 - 氧化铝催化剂的反应器，以高达丁烯-1的50倍以上的反应速度聚合异丁烯，从而形成异丁烯的低聚物。最后，将来自反应器的烃混合物进行精馏以除去异丁烯和其它C 4烃的低聚物。

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