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    Process for preparing diaryl carbonate
    3.
    发明授权
    Process for preparing diaryl carbonate 失效
    制备碳酸二芳基酯的方法

    公开(公告)号：US5892089A

    公开(公告)日：1999-04-06

    申请号：US944231

    申请日：1997-10-06

    申请人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Yoichi Imbe ,  Takashi Doi ,  Keigo Nishihira ,  Shuji Tanaka ,  Hirofumi Ii

    发明人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Yoichi Imbe ,  Takashi Doi ,  Keigo Nishihira ,  Shuji Tanaka ,  Hirofumi Ii

    IPC分类号： C07C68/00

    CPC分类号： C07C68/00

    摘要： A process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation is conducted by the steps of:1) performing a decarbonylation reaction of a diaryl oxalate in the presence of an organic phosphorus compound catalyst to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst;2) recovering the diaryl carbonate from the reaction mixture; and3) performing a decarbonylation reaction of a diaryl oxalate in the presence of the reaction mixture from which the diaryl carbonate has been recovered and to which a halogen atom-containing compound is added, to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst.

    摘要翻译： 通过脱羰由草酸二芳基酯在液相中制备碳酸二芳基酯的方法是通过以下步骤进行的：1）在有机磷化合物催化剂存在下进行草酸二芳基酯的脱羰基化反应，得到 碳酸二芳酯和有机磷化合物催化剂; 2）从反应混合物中回收碳酸二芳基酯; 和3）在已经回收了碳酸二芳基酯并且含有含卤原子的化合物的反应混合物存在下进行草酸二芳酯的脱羰基反应，得到碳酸二芳基酯和有机物的反应混合物 磷化合物催化剂。

    Process for producing a diaryl carbonate
    4.
    发明授权
    Process for producing a diaryl carbonate 失效
    制备碳酸二芳基酯的方法

    公开(公告)号：US5731453A

    公开(公告)日：1998-03-24

    申请号：US814089

    申请日：1997-03-10

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    IPC分类号： C07C67/02 ,  C07C67/03 ,  C07C68/00 ,  C07C69/36 ,  C07C69/96

    CPC分类号： C07C67/03 ,  C07C68/00 ,  Y02P20/127

    摘要： A diaryl carbonate with a high degree of purity is produced at a high yield by (A) subjecting (a) a diaryl oxalate and a phenol compound or (b) an alkylaryl oxalate to transesterification reaction in one or two stages in the presence of a catalyst to prepare a diaryl oxalate, while removing a by-product from the reaction system; (B) collecting the diaryl oxalate from the resultant reaction product mixture of the step (A); (C) subjecting the diaryl oxalate to a decarbonylation reaction, preferably in the presence of a phosphorous compound-containing catalyst, to convert the diaryl oxalate to a corresponding diaryl carbonate, while removing a reaction by-product comprising carbon monoxide from the reaction system; and (D) collecting the diaryl carbonate from the reaction product mixture of the step (C).

    摘要翻译： 通过（A）在（a）草酸二芳基酯和酚化合物或（b）草酸烷基芳基酯在一个或两个阶段中存在下进行酯交换反应，以高产率生产具有高纯度的碳酸二芳基酯 催化剂，以制备草酸二芳基酯，同时从反应体系中除去副产物; （B）从所得步骤（A）的反应产物混合物中收集草酸二芳基酯; （C）优选在含磷化合物的催化剂存在下使草酸二芳基酯进行脱羰反应，将草酸二芳基酯转化为相应的碳酸二芳基酯，同时从反应体系中除去包含一氧化碳的反应副产物; 和（D）从步骤（C）的反应产物混合物中收集碳酸二芳基酯。

    Process for producing a diaryl carnonate
    5.
    发明授权
    Process for producing a diaryl carnonate 失效
    生产碳酸二芳酯的方法

    公开(公告)号：US5811573A

    公开(公告)日：1998-09-22

    申请号：US988759

    申请日：1997-12-11

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Ii Hirofumi ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Ii Hirofumi ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    IPC分类号： C07C67/02 ,  C07C67/03 ,  C07C68/00 ,  C07C69/36 ,  C07C69/96

    CPC分类号： C07C67/03 ,  C07C68/00 ,  Y02P20/127

    摘要： A diaryl carbonate with a high degree of purity is produced at a high yield by (A) subjecting (a) a diaryl oxalate and a phenol compound or (b) an alkylaryl oxalate to transesterification reaction in one or two stages in the presence of a catalyst to prepare a diaryl oxalate, while removing a by-product from the reaction system; (B) collecting the diaryl oxalate from the resultant reaction product mixture of the step (A); (C) subjecting the diaryl oxalate to a decarbonylation reaction, preferably in the presence of a phosphorous compound-containing catalyst, to convert the diaryl oxalate to a corresponding diaryl carbonate, while removing a reaction by-product comprising carbon monoxide from the reaction system; and (D) collecting the diaryl carbonate from the reaction product mixture of the step (C).

    摘要翻译： 通过（A）在（a）草酸二芳基酯和酚化合物或（b）草酸烷基芳基酯在一个或两个阶段中存在下进行酯交换反应，以高产率生产具有高纯度的碳酸二芳基酯 催化剂，以制备草酸二芳基酯，同时从反应体系中除去副产物; （B）从所得步骤（A）的反应产物混合物中收集草酸二芳基酯; （C）优选在含磷化合物的催化剂存在下使草酸二芳基酯进行脱羰反应，将草酸二芳基酯转化为相应的碳酸二芳基酯，同时从反应体系中除去包含一氧化碳的反应副产物; 和（D）从步骤（C）的反应产物混合物中收集碳酸二芳基酯。

    Process for producing a polycarbonate
    6.
    发明授权
    Process for producing a polycarbonate 失效
    聚碳酸酯的制造方法

    公开(公告)号：US5922827A

    公开(公告)日：1999-07-13

    申请号：US936666

    申请日：1997-09-24

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise ,  Akinori Shiotani ,  Katsutoshi Washio

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise ,  Akinori Shiotani ,  Katsutoshi Washio

    IPC分类号： C08G64/30 ,  C08G64/00

    CPC分类号： C08G64/307

    摘要： A diaryl carbonate is produced by decarbonylating a diaryl oxalate, which can be prepared by transesterification of a dialkyl oxalate with a hydroxyaryl compound, in the presence of a catalyst, while removing the resultant carbon monoxide as a by-product, and then optionally refined by an evaporation and/or distillation, and then the resultant diaryl carbonate is condensation-polymerized with a polyhydroxyl compound, while recovering a resultant hydroxyaryl compound from the reaction system, to produce a polycarbonate.

    摘要翻译： 碳酸二芳基酯是通过将草酸二芳基酯脱碳化而制得的，该草酸二芳基酯可以在催化剂存在下通过草酸二烷基酯与羟基芳基化合物的酯交换制备，同时除去作为副产物的所得一氧化碳，然后任选地通过 蒸发和/或蒸馏，然后将所得碳酸二芳基酯与多羟基化合物缩聚，同时从反应体系中回收得到的羟基芳基化合物，以制备聚碳酸酯。

    Process for producing diaryl carbonate
    7.
    发明授权
    Process for producing diaryl carbonate 失效
    生产碳酸二芳酯的方法

    公开(公告)号：US5834615A

    公开(公告)日：1998-11-10

    申请号：US936513

    申请日：1997-09-24

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise

    IPC分类号： C07C68/00

    CPC分类号： C07C68/00

    摘要： A high purity diaryl carbonate is produced with a high efficiency by reacting carbon monoxide with an alkyl nitrite and/or an alkyl alcohol; reacting the resultant dialkyl oxalate with a hydroxyaryl compound, for example, phenol; decarbonylating the resultant diaryl oxalate to produce a diaryl carbonate and carbon monoxide; and collecting the diaryl carbonate from the decarbonylation reaction product mixture, the carbon monoxide produced in the decabonylation step being optionally reused for the production of the dialkyl oxalate.

    摘要翻译： 通过使一氧化碳与亚硝酸烷基酯和/或烷基醇反应，高效率地生产高纯度碳酸二芳基酯; 使得到的草酸二烷基酯与羟基芳基化合物例如苯酚反应; 将所得的草酸二芳酯脱碳酸化以产生碳酸二芳酯和一氧化碳; 并从脱羰基反应产物混合物中收集碳酸二芳基酯，在癸二酰化步骤中产生的一氧化碳任选地再次用于生产草酸二烷基酯。

    Process for producing a diaryl oxalate
    8.
    发明授权
    Process for producing a diaryl oxalate 失效
    制备草酸二芳基酯的方法

    公开(公告)号：US6018072A

    公开(公告)日：2000-01-25

    申请号：US875823

    申请日：1997-08-07

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Satoru Fujitsu

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Satoru Fujitsu

    IPC分类号： C07C67/02 ,  C07C69/34

    CPC分类号： C07C67/02

    摘要： The present invention relates to a process for producing a diaryl oxalate, characterized in that an alkylaryl oxalate is subjected to a disproportionation reaction in the presence of a disproportionation catalyst, thereby to produce a diaryl oxalate while removing a by-product comprising a dialkyl oxalate.The production process of the present invention is advantageous in that the kinds of the by-products are fewer than that in conventional production process for diaryl oxalate, and thus can be practically utilized in industry, and the diaryl oxalates such as diphenyl oxalate, produced by the production process of the present invention are very important industrial materials for producing chemical products such as carbamates.

    摘要翻译： PCT No.PCT / JP96 / 03636 Sec。 371日期1997年8月7日 102（e）日期1997年8月7日PCT 1996年12月12日PCT PCT。 公开号WO97 / 21660 日期：1997年6月19日本发明涉及草酸二芳基酯的制备方法，其特征在于草酸烷基芳基酯在歧化催化剂存在下进行歧化反应，从而产生草酸二芳基酯，同时除去副产物 包括草酸二烷基酯。 本发明的制造方法的优点在于副产物的种类比常规的草酸二芳基酯的制备方法少，因此可以实际应用于工业中，草酸二芳基酯如草酸二苯酯，由 本发明的生产方法是用于生产化学产品如氨基甲酸酯的非常重要的工业材料。

    Diphenyl oxalate-phenol adduct, process for producing the adduct and method of producing diphenyl oxalate from the adduct
    9.
    发明授权
    Diphenyl oxalate-phenol adduct, process for producing the adduct and method of producing diphenyl oxalate from the adduct 失效
    草酸二苯酚 - 苯酚加合物，加合物的制备方法和从加合物生产草酸二苯酯的方法

    公开(公告)号：US5705677A

    公开(公告)日：1998-01-06

    申请号：US757070

    申请日：1996-11-26

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu

    IPC分类号： C07C69/017 ,  C07C69/36

    CPC分类号： C07C69/017 ,  C07C69/36

    摘要： A novel crystalline adduct of diphenyl oxalate and phenol in a molar ratio of 1:2 and having a high purity is produced by melting a mixture containing diphenyl oxalate and phenol at a temperature of 100.degree. C. or more; cooling the melt to a temperature of less than 100.degree. C. to allow a resultant adduct of diphenyl oxalate and phenol in a molar ratio of 1:2 to crystallize and deposit from the melt; and collecting the crystalline adduct. Diphenyl oxalate with a high purity is produced by melting the crystalline adduct to dissociate it into diphenyl oxalate and phenol, and evaporating away the dissociated phenol from the melt to collect the dissociated diphenyl oxalate.

    摘要翻译： 通过在100℃或更高的温度下熔化含有草酸二苯酯和苯酚的混合物，产生摩尔比为1:2且具有高纯度的草酸二苯酯和苯酚的新型结晶加合物; 将熔体冷却至低于100℃的温度，使所得到的草酸二苯酯和苯酚的摩尔比为1:2的加合物从熔体中结晶和沉积; 并收集结晶加合物。 通过熔化结晶加合物将其分解成草酸二苯酯和苯酚，并将离解的苯酚从熔体中蒸发掉以收集离解的草酸二苯酯，从而产生高纯度的二苯基草酸盐。

    Process for producing alkyl nitrite
    10.
    发明申请
    Process for producing alkyl nitrite 有权
    亚硝酸烷基酯的制备方法

    公开(公告)号：US20050038282A1

    公开(公告)日：2005-02-17

    申请号：US10946475

    申请日：2004-09-21

    申请人： Ryoji Sugise ,  Shuji Tanaka ,  Hirofumi Ii ,  Kazuaki Mii

    发明人： Ryoji Sugise ,  Shuji Tanaka ,  Hirofumi Ii ,  Kazuaki Mii

    IPC分类号： C07C201/04 ,  C07C203/00 ,  C07C23/02

    CPC分类号： C07C201/04 ,  C07C203/00

    摘要： An alkyl nitrite is produced with high efficiency by bringing a nitrogen monoxide gas into contact with an aqueous solution of an alkyl alcohol and nitric acid in a reactor 2, which aqueous solution may be a liquid fraction generated in an alkyl nitrite-production process in which an alkyl alcohol is reacted with nitrogen monoxide and oxygen in a reaction column 1.

    摘要翻译： 通过在反应器2中使一氧化氮气体与烷基醇和硝酸的水溶液接触，可以高效率地生产亚硝酸烷基酯，该水溶液可以是在亚硝酸烷基酯制备方法中产生的液体馏分，其中 在反应塔1中使烷基醇与一氧化氮和氧气反应。