公开(公告)号：EP0560488A1

公开(公告)日：1993-09-15

申请号：EP93300866.6

申请日：1993-02-05

申请人： ARCO CHEMICAL TECHNOLOGY INC.

发明人： Crocco, Guy L. ,  Zajacek, John G. ,  Shum, Wilfred Po-sum ,  Kesling, Haven S., Jr.

IPC分类号： C07D301/12

CPC分类号： C07D301/12 ,  Y02P20/125

摘要： Olefins are epoxidized by hydrogen peroxide in the presence of an organorhenium oxide catalyst and an alkyl aryl secondary alcohol solvent. High yields of epoxides with minimal non-selective loss of either hydrogen peroxide or olefin are realized. The epoxidation may comprise one step of an integrated process wherein an oxidant mixture is generated by molecular oxygen oxidation of the alkyl aryl secondary alcohol and used directly in the epoxidation without further purification or extraction.

摘要翻译： 在有机铼氧化物催化剂和烷基芳基仲醇溶剂的存在下，烯烃被过氧化氢环氧化。 实现了具有最小的非选择性损失的过氧化氢或烯烃的高产率环氧化物。 环氧化可以包括一个整合方法的步骤，其中通过烷基芳基仲醇的分子氧氧化产生氧化剂混合物，并直接用于环氧化而不进一步纯化或提取。

公开(公告)号：EP0408277A2

公开(公告)日：1991-01-16

申请号：EP90307459.9

申请日：1990-07-09

申请人： ARCO CHEMICAL TECHNOLOGY INC.

发明人： Shawl, Edward T. ,  Zajacek, John G. ,  Kesling, Haven S., Jr.

IPC分类号： C07C263/06 ,  C07C273/18

CPC分类号： C07C263/06 ,  C07C273/1827 ,  C07C265/14 ,  C07C265/04 ,  C07C275/28 ,  C07C275/14 ,  C07C275/06 ,  C07C275/24

摘要： A multi-step process for the preparation of an aliphatic mono-, di- or poly- isocyanate from primary aliphatic amines and isocyanic acid to form an aliphatic urea which is then reacted with a dialkyl amine to give a mono-, di- or poly- (dialkyl) urea which is then thermally treated in the presence of a reaction promoter to produce the desired isocyanate.

摘要翻译： 用于由脂肪族脂族胺和异氰酸酯制备脂族单，二或多异氰酸酯以形成脂族脲的多步法，然后与二烷基胺反应得到单 - ，二 - 或多 - （二烷基）脲，然后在反应促进剂的存在下进行热处理以产生所需的异氰酸酯。

公开(公告)号：EP0402020A1

公开(公告)日：1990-12-12

申请号：EP90305738.8

申请日：1990-05-25

申请人： ARCO CHEMICAL TECHNOLOGY INC.

发明人： Shawl, Edward T. ,  Kesling, Haven S., Jr. ,  Liotta, Frank J. Jr. ,  Zajacek, John G.

IPC分类号： C07C265/14 ,  C07C263/06 ,  C07C275/28 ,  C07C273/18

CPC分类号： C07C273/1827 ,  C07C263/06 ,  C07C275/28 ,  C08G18/7664 ,  C08G18/7671 ,  Y02P20/125 ,  C07C265/14

摘要： A multi-step process for the preparation of methylene diphenylene diisocyanates (MDI) or polymethylene polyphenylene poly (isocyanates) (PMDI) from methylene diphenylene diamines or polymethylene polyphenylene polyamines comprises reacting the diamine or polyamine with isocyanic acid to form a urea which is then reacted with a dialkyl amine to give a corresponding dialkyl urea or poly (alkyl urea) product which is then thermally reacted in the presence of various reaction promoters to give the corresponding isocyanate MDI or PMDI product.

摘要翻译： 亚甲基二亚苯基二异氰酸酯（MDI）或选自亚甲基二亚苯基二胺或聚亚甲基聚亚苯基多胺基多亚苯基聚（异氰酸酯）（PMDI）的制备的多步骤方法包括使所述二胺或多胺与异氰酸反应形成脲所有其然后被反应 与二烷基胺，得到相应的二烷基脲或聚（烷基脲）产物的所有其然后在热各种反应促进剂存在下反应，得到相应的异氰酸酯的MDI或PMDI产物。

公开(公告)号：EP0391716A1

公开(公告)日：1990-10-10

申请号：EP90303669.7

申请日：1990-04-05

申请人： ARCO CHEMICAL TECHNOLOGY INC.

发明人： Shawl, Edward T. ,  Kesling, Haven S., Jr. ,  Liotta, Frank J., Jr. ,  Zajacek, John G.

IPC分类号： C07C263/06 ,  C07C265/12

CPC分类号： C07C263/06 ,  Y02P20/125 ,  C07C265/14 ,  C07C265/12

摘要： A multi-step process for the preparation of aromatic mono- and polyisocyanates in which an aromatic mono- or polyamine and isocyanic acid are reacted to form an aromatic urea which is then reacted with a dialkyl amine to give an aromatic dialkyl urea product. The aromatic dialkyl urea is thermally treated in an inert organic solvent in the presence of a reaction promoter to produce the isocyanate.

摘要翻译： 用于向芳族单 - 或多元胺和异氰酸芳族单 - 和多异氰酸酯在其制备的多步骤过程中反应以形成芳族尿素所有其然后与二烷基胺反应，得到芳族二烷基脲产物。 芳族二烷基脲在惰性有机溶剂中进行热处理在反应促进以产生异氰酸酯的存在。