公开(公告)号：US20160185902A1

公开(公告)日：2016-06-30

申请号：US14980598

申请日：2015-12-28

申请人： Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd ,  China University Of Petroleum (Eastern China)

发明人： Hongyan SHANG ,  Zhengpeng HONG ,  Chengyue LI ,  Xiaoting FENG ,  Yu HAN ,  Zhenzhen XUE

IPC分类号： C08G65/00 ,  B01J8/08 ,  B01J8/10

CPC分类号： B01J8/087 ,  B01J8/006 ,  B01J8/0085 ,  B01J8/085 ,  B01J8/10 ,  B01J19/1862 ,  B01J2208/00132 ,  B01J2208/00141 ,  B01J2208/00194 ,  B01J2208/00212 ,  B01J2208/00539 ,  B01J2208/00548 ,  B01J2208/00557 ,  B01J2208/00628 ,  B01J2208/00867 ,  C07C41/56 ,  C07C43/30

摘要： The present invention pertains to the technical field of energy resource chemical industry, and in particular relates to a continuous reaction device and process for synthesizing polyoxymethylene dimethyl ethers by using paraformaldehyde and methylal as feedstock or using trioxane and methylal as feedstock in the presence of an acidic catalyst. The continuous reaction device comprises multiple slurry bed stirred tank reactors connected in series or in combination of series connection and parallel connection, and also comprises an on-line solid-liquid separation device to perform separation of the reaction mixture from the catalyst. Each of the tank reactors is provided with an axial-flow stirring paddle having 2-6 blades per layer, to ensure sufficient mixing of the reactants with the catalyst. By using a distributed control pattern of reaction temperature and feedstock supplying to enhance the process and to optimize the operation, the reaction device of the present invention can effectively achieve large-scale continuous production of polyoxymethylene dimethyl ethers, and both the yield rates and the distribution of the reaction product are better than those of prior art.

摘要翻译： 本发明涉及能源化学工业的技术领域，特别涉及通过使用多聚甲醛和甲缩醛作为原料或使用三恶烷和甲缩醛作为原料在酸性存在下合成聚甲醛二甲醚的连续反应装置和方法 催化剂。 连续反应装置包括串联连接或串联连接并联连接的多个淤浆床搅拌釜反应器，并且还包括在线固相分离装置，以使反应混合物与催化剂分离。 每个罐式反应器设有每层具有2-6个叶片的轴流搅拌桨，以确保反应物与催化剂的充分混合。 通过使用反应温度和原料供应的分布式控制模式来增强工艺和优化操作，本发明的反应装置可以有效地实现聚甲醛二甲醚的大规模连续生产，产率和分布 的反应产物比现有技术更好。

公开(公告)号：US20140364652A1

公开(公告)日：2014-12-11

申请号：US14257215

申请日：2014-04-21

申请人： Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd.

发明人： Zhengpeng HONG ,  Hongyan SHANG ,  Xiaoting FENG

IPC分类号： C10L1/02

CPC分类号： C10L1/02 ,  C07C29/141 ,  C07C41/56 ,  C08G2/28 ,  C08G2/34 ,  C08L59/02 ,  C07C43/303 ,  C07C31/04

摘要： The present invention relates to a method for refining polyoxymethylene dialkyl ethers by catalytic hydrogenation using a slurry bed, wherein, using a slurry bed reactor of refining by hydrogenation, an equilibrium system of products containing polyoxymethylene dialkyl ethers is refined by catalytic hydrogenation, so as to remove formaldehyde contained therein. The refining method by hydrogenation described in the present invention is able to remarkably increase the extracting rate of polyoxymethylene dialkyl ethers, and the polyoxymethylene dialkyl ethers obtained after subsequent rectification have purity greater than 99.5%, yield greater than 97% and atom utilization ratio close to 100%.

摘要翻译： 本发明涉及一种通过使用淤浆床的催化氢化来精制聚甲醛二烷基醚的方法，其中使用通过氢化精制的淤浆床反应器，通过催化氢化精制含有聚甲醛二烷基醚的产物的平衡体系，以便 除去其中所含的甲醛。 通过本发明所述的氢化精炼方法能够显着提高聚甲醛二烷基醚的萃取率，后续精馏后得到的聚甲醛二烷基醚的纯度大于99.5％，收率大于97％，原子利用率接近 100％。