公开(公告)号：US4663477A

公开(公告)日：1987-05-05

申请号：US844895

申请日：1986-03-27

申请人： John W. Crandall ,  James E. Deitzler ,  Louis A. Kapicak ,  Fedor Poppelsdorf

发明人： John W. Crandall ,  James E. Deitzler ,  Louis A. Kapicak ,  Fedor Poppelsdorf

IPC分类号： C07C69/36 ,  C07C29/09 ,  C07C29/147 ,  C07C31/04 ,  C07C67/36 ,  C07C67/48 ,  C07C67/60 ,  C07C69/96

CPC分类号： C07C29/095

摘要： A process is provided for the utilization of dialkyl carbonates formed as by-products in a continuous process for the synthesis of oxalic acid esters from nitrous acid esters and carbon monoxide and wherein the esters are subsequently used as intermediates in the production of commercially useful products, such as ethylene glycol. The process comprises contacting a mixture containing the by-product comprised of a dialkyl carbonate with an aqueous solution of a metal carbonate under hydrolyzing conditions whereby the dialkyl carbonate is converted to the corresponding alkanol and the metal carbonate is converted to metal bicarbonate. Upon distillation of the alkanol from the mixture the bicarbonate is converted back to the metal carbonate which can then be recycled from the bottoms to the hydrolyzing zone for use in further hydrolysis of by-product. The alkanol is recycled for use in the continuous process.

摘要翻译： 提供了一种方法，用于利用在连续方法中形成副产物的二烷基碳酸酯，用于从亚硝酸酯和一氧化碳合成草酸酯，并且其中酯随后用作生产商业上有用的产品的中间体， 如乙二醇。 该方法包括在水解条件下使包含碳酸二烷基酯的副产物与金属碳酸盐水溶液的混合物接触，由此将碳酸二烷基酯转化为相应的链烷醇并将金属碳酸盐转化为金属碳酸氢盐。 在从混合物中蒸馏出链烷醇时，碳酸氢盐转化回到金属碳酸盐，然后可将其从塔底产物再循环到水解区，用于副产物的进一步水解。 链烷醇被再循环用于连续过程。

公开(公告)号：US4247482A

公开(公告)日：1981-01-27

申请号：US103210

申请日：1979-12-13

申请人： Fedor Poppelsdorf

发明人： Fedor Poppelsdorf

IPC分类号： C08G18/18 ,  C08G18/20 ,  C07C85/24 ,  C07C89/00

CPC分类号： C08G18/1833 ,  C08G18/2081

摘要： A process is provided for producing bis-(N,N-dialkylamino)alkyl ethers of the formula (R.sub.2 NR').sub.2 O, wherein R is a methyl or ethyl group and R' is a bivalent alkylene group having from 2 to 3 carbon atoms. The novel process is effected by a two-step, preferably "one pot," reaction that utilizes SO.sub.3 vapor and R.sub.2 NR'ONa as reactants, wherein R and R' are defined above. The resulting bis-ethers are useful as catalysts in the production of polyurethanes, especially cellular polyurethanes.

摘要翻译： 提供了制备式（R2NR'）2O的二 - （N，N-二烷基氨基）烷基醚的方法，其中R是甲基或乙基，R'是具有2至3个碳原子的二价亚烷基。 该新方法通过利用SO 3蒸气和R2NR'ONa作为反应物的两步优选“一锅”反应实现，其中R和R'如上定义。 所得双醚可用作生产聚氨酯，特别是细胞聚氨酯的催化剂。

公开(公告)号：US4649226A

公开(公告)日：1987-03-10

申请号：US844559

申请日：1986-03-27

申请人： Fedor Poppelsdorf ,  Charles A. Smith

发明人： Fedor Poppelsdorf ,  Charles A. Smith

IPC分类号： B01J35/02 ,  B01J23/72 ,  C07B61/00 ,  C07C27/00 ,  C07C29/132 ,  C07C29/136 ,  C07C29/149 ,  C07C31/20 ,  C07C67/00

CPC分类号： B01J23/72 ,  C07C29/149 ,  Y02P20/52

摘要： An improved calcined hydrogenation catalyst shape which is useful for the catalysis of hydrogenation reactions in a tubular reactor is provided. The catalyst shape has an annular configuration with an open center core, and wherein the shape contains, as a reinforcing matrix distributed therein, up to about 50 percent by weight of milled glass fibers having specific dimensions and wherein the crush strength of the shape is vastly improved with little change in catalytic activity over the non-reinforced shape of comparable size. Additionally, when the shapes of the present invention are employed pressure-drop and diffusion problems are reduced. The catalyst shapes are particularly useful for the hydrogenation of alkyl oxalates to ethylene glycol whereby the reaction can be conducted at lower temperatures and hence by-product formation is minimized.

摘要翻译： 提供了可用于催化管式反应器中的氢化反应的改进的煅烧氢化催化剂形状。 催化剂形状具有开放中心芯的环形结构，并且其中形状包含作为其中分布的增强基体，高达约50重量％的具有特定尺寸的研磨玻璃纤维，并且其形状的压碎强度大大地 改善了催化活性几乎不变化的非增强形状相当的尺寸。 此外，当使用本发明的形状时，压降和扩散问题减少。 催化剂形状对于将草酸烷基酯氢化成乙二醇是特别有用的，由此可以在较低的温度下进行反应，从而最小化副产物的形成。

公开(公告)号：US4177212A

公开(公告)日：1979-12-04

申请号：US901812

申请日：1978-05-01

申请人： Fedor Poppelsdorf

发明人： Fedor Poppelsdorf

IPC分类号： C07C217/08 ,  C07C67/00 ,  C07C213/00 ,  C07C85/24 ,  C07C93/10

CPC分类号： C07C213/06

摘要： A process is provided for producing bis-(N,N-dialkylamino)alkyl ethers of the formula (R.sub.2 NR').sub.2 O, wherein R is a methyl or ethyl group and R' is a bivalent alkylene group having from 2 to 3 carbon atoms. The novel process is effected by a two-step, "one pot" reaction that utilizes a chloro-containing compound selected from the group consisting of sulfuryl chloride, thionyl chloride and chlorosulfonic acid together with R.sub.2 NR'ONa as reactants, wherein R and R' are defined above. The resulting bis-ethers are useful as catalysts in the production of polyurethanes, especially cellular polyurethanes.

摘要翻译： 提供了制备式（R2NR'）2O的二 - （N，N-二烷基氨基）烷基醚的方法，其中R是甲基或乙基，R'是具有2至3个碳原子的二价亚烷基。 该新方法通过两步“一锅”反应进行，其中使用选自硫酰氯，亚硫酰氯和氯磺酸的含氯化合物与R2NR'ONa一起作为反应物，其中R和R' 在上面定义。 所得双醚可用作生产聚氨酯，特别是细胞聚氨酯的催化剂。

公开(公告)号：US3957875A

公开(公告)日：1976-05-18

申请号：US477810

申请日：1974-06-10

申请人： John Lee Ferrell ,  Fedor Poppelsdorf

发明人： John Lee Ferrell ,  Fedor Poppelsdorf

IPC分类号： C07C20060101 ,  C07C85/06

CPC分类号： C07C209/16

摘要： A process is disclosed which comprises reacting trimethylamine with 2-[2-(N,N-dimethylamino)ethoxy]ethanol in the presence of nickel catalyst to produce bis[2-(N,N-dimethylamino)ethyl] ether.