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1. 发明授权

US4243798A Process for the production of a polymeric carbamate 失效
标题翻译：制备聚合氨基甲酸酯的方法
公开(公告)号：US4243798A
公开(公告)日：1981-01-06
申请号：US65247
申请日：1979-08-09
申请人： Frederick C. Franklin , Robert A. Lewis
发明人： Frederick C. Franklin , Robert A. Lewis
IPC分类号： C10L1/234 , C08G65/333 , C08G71/00 , C08G71/02 , C10L1/22 , C10L1/224 , C08G71/04
CPC分类号： C10L1/224 , C08G65/33306 , Y02P20/582
摘要： A process for the production of polymeric carbamate from polyalkylene polyamines which provides for the efficient separation of the product mixture into a hydrocarbon phase containing the carbamate and a polyamine phase containing the polyamine hydrochloride salt utilizes an excess of polyamine reactant containing a limited amount of water. The process is particularly suited to the production of monocarbamate.
摘要翻译：用于从聚亚烷基多胺制备聚合氨基甲酸酯的方法，其提供将产物混合物有效分离成含有氨基甲酸酯的烃相和含有多胺盐酸盐的多胺相的方法利用过量的含有限量水的多胺反应物。该方法特别适合于生产单氨基甲酸酯。

2. 发明授权

US4471154A Staged, fluidized-bed distillation-reactor and a process for using such reactor 失效
标题翻译：分级流化床蒸馏反应器和使用这种反应器的方法
公开(公告)号：US4471154A
公开(公告)日：1984-09-11
申请号：US503087
申请日：1983-06-10
申请人： Frederick C. Franklin
发明人： Frederick C. Franklin
IPC分类号： B01D3/00 , B01D3/22 , B01J8/28 , C07C41/06 , C07C41/42 , C07C7/00
CPC分类号： C07C41/06 , B01D3/009 , B01D3/22 , B01J8/28 , C07C41/42 , Y02P20/127 , Y10S203/06
摘要： A distillation-reactor for separating constituents of a feedstock having similar boiling points includes at least one stage with containing screens defining a series of containment volumes for a heterogeneous particulate catalyst. The catalyst is fluidized within the volumes defined by the containing screens by the action of vapor passing through the tray. Liquid flowing across the tray intimately contacts the fluidized catalyst and vapor without the occurrence of liquid back-up or high pressure drop.
摘要翻译：用于分离具有相似沸点的原料的组分的蒸馏反应器包括至少一个阶段，其中含有界定一系列不均匀颗粒催化剂的容纳体积的筛网。催化剂在通过载体通过托盘的蒸气作用下由含有的筛网限定的体积内流化。流过托盘的液体与流化催化剂和蒸气紧密接触，而不会发生液体后备或高压降。

3. 发明授权

US3965123A Maleic anhydride recovery 失效
标题翻译：马来酸酐回收
公开(公告)号：US3965123A
公开(公告)日：1976-06-22
申请号：US477556
申请日：1974-06-10
申请人： Frederick C. Franklin
发明人： Frederick C. Franklin
IPC分类号： C07C51/573 , C07D307/60
CPC分类号： C07C51/573
摘要： A process for recovery of good color stability maleic anhydride which comprisesA. removing maleic anhydride from a gaseous mixture containing maleic anhydride by absorption into an organic absorbent,B. distilling maleic anhydride overhead from the resulting absorbent in a first distillation column,C. condensing maleic anhydride out of the resulting overhead thereby obtaining condensed liquid maleic anhydride,D. passing at least a portion of the condensed maleic anhydride to the upper part of a second distillation column, andE. distilling material more volatile than maleic anhydride out of the condensed liquid maleic anhydride in a second distillation column, thereby obtaining stripped maleic anhydride which is withdrawn from the lower part of the second distillation column.Preferably the stripped maleic anhydride is distilled in a third distillation column and purified maleic anhydride is withdrawn as an overhead product.
摘要翻译：一种恢复良好色稳定性马来酸酐的方法，其包括A.通过吸收含有有机吸收剂从含有马来酸酐的气体混合物中除去马来酸酐，B.从第一蒸馏塔中的结晶吸收物中蒸馏出马来酸酐，C.冷凝结果超过浓缩液态男性非氢化物的阴离子，D.将至少一个浓缩的马来酸酐的部分通入第二个蒸馏塔的上部，以及E.将挥发性更多的非挥发性物质蒸馏出浓缩物第二个蒸馏塔中的液体非水溶液，可以从第二个蒸馏塔的下部排出，从而获得剥离的马来酸酐。

4. 发明授权

US4282013A Vacuum pump operation in a maleic anhydride recovery system 失效
标题翻译：马来酸酐回收系统中的真空泵操作
公开(公告)号：US4282013A
公开(公告)日：1981-08-04
申请号：US851248
申请日：1977-11-14
申请人： Frederick C. Franklin , Stephen G. Paradis
发明人： Frederick C. Franklin , Stephen G. Paradis
IPC分类号： C07C51/573 , F04C19/00 , B01D19/00
CPC分类号： F04C19/004 , C07C51/573
摘要： In a reduced-pressure process for distilling crude maleic anhydride recovered by separation from an organic absorbent wherein reduced pressure is obtained using a liquid ring-seal vacuum pump, the improvement which comprises sealing the liquid ring-seal vacuum pump by circulating a maleic anhydride absorbent from a regenerating zone through the vacuum pump chamber.
摘要翻译：在用于蒸馏从有机吸收剂分离回收的粗马来酸酐的减压方法中，其中使用液体环密封真空泵获得减压，其改进包括通过循环马来酸酐吸收剂密封液体环密封真空泵从再生区通过真空泵室。

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