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公开(公告)号：US09266990B2
公开(公告)日：2016-02-23
申请号：US14601787
申请日：2015-01-21
发明人： Jinfu Wang , Yanyan Zheng , Shengwei Wang , Tiefeng Wang , Shuangxi Chen , Cunfu Zhu
CPC分类号： C08G16/0225 , C07C41/01 , C07C41/09 , C07C41/14 , C07C41/36 , C07C41/56 , C07C41/58 , C08G2/34 , C07C43/30
摘要： A method for producing polyoxymethylene dimethyl ethers using fluidized bed reactor is provided. The fluidized bed reactor gives high conversion of feedstock during synthesis of polyoxymethylene dimethyl ethers. The product separation process includes pre-rectification, extractive rectification and vacuum rectification in series. In the pre-rectification process, the side-draw fraction PODE2 is recycled into the fluidized bed reactor, thus product distribution and selectivity to target components in the reactor can be improved. The extractive rectification process realizes coupling of neutralization, extraction, recovery of unconverted feedstock and products separation, thus significantly simplifies the process. The method for preparation of polyoxymethylene dimethyl ethers in this invention is simple, and has high conversion of feedstock, low energy cost and high selectivity to products.
摘要翻译： 提供了使用流化床反应器生产聚甲醛二甲醚的方法。 流化床反应器在合成聚甲醛二甲醚期间提供原料的高转化率。 产品分离过程包括预整流，萃取精馏和真空整流。 在预精馏过程中，侧馏分PODE2被再循环到流化床反应器中，从而可以提高反应器中对目标组分的产物分布和选择性。 萃取精馏过程实现中和，提取，未转化原料的回收和产物分离的偶联，从而显着简化了工艺。 本发明的聚甲醛二甲醚的制备方法简单，原料转化率高，能量成本低，产品选择性高。
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公开(公告)号：US20150291722A1
公开(公告)日：2015-10-15
申请号：US14601787
申请日：2015-01-21
发明人： Jinfu Wang , Yanyan Zheng , Shengwei Wang , Tiefeng Wang , Shuangxi Chen , Confu Zhu
CPC分类号： C08G16/0225 , C07C41/01 , C07C41/09 , C07C41/14 , C07C41/36 , C07C41/56 , C07C41/58 , C08G2/34 , C07C43/30
摘要： A method for producing polyoxymethylene dimethyl ethers using fluidized bed reactor is provided. The fluidized bed reactor gives high conversion of feedstock during synthesis of polyoxymethylene dimethyl ethers. The product separation process includes pre-rectification, extractive rectification and vacuum rectification in series. In the pre-rectification process, the side-draw fraction PODE2 is recycled into the fluidized bed reactor, thus product distribution and selectivity to target components in the reactor can be improved. The extractive rectification process realizes coupling of neutralization, extraction, recovery of unconverted feedstock and products separation, thus significantly simplifies the process. The method for preparation of polyoxymethylene dimethyl ethers in this invention is simple, and has high conversion of feedstock, low energy cost and high selectivity to products.
摘要翻译： 提供了使用流化床反应器生产聚甲醛二甲醚的方法。 流化床反应器在合成聚甲醛二甲醚期间提供原料的高转化率。 产品分离过程包括预整流，萃取精馏和真空整流。 在预精馏过程中，侧馏分PODE2被再循环到流化床反应器中，从而可以提高反应器中对目标组分的产物分布和选择性。 萃取精馏过程实现中和，提取，未转化原料的回收和产物分离的偶联，从而显着简化了工艺。 本发明的聚甲醛二甲醚的制备方法简单，原料转化率高，能量成本低，产品选择性高。
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