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    PREPARATION OF SULFONIC ACID ANHYDRIDES
    2.
    发明申请
    PREPARATION OF SULFONIC ACID ANHYDRIDES 有权
    磺酸类抗坏血酸的制备

    公开(公告)号：US20100076221A1

    公开(公告)日：2010-03-25

    申请号：US12375073

    申请日：2007-07-25

    申请人： Bernard Besson

    发明人： Bernard Besson

    IPC分类号： C07C309/00

    CPC分类号： C07C303/00 ,  C07C309/00

    摘要： Sulfonic acid anhydrides, and more particularly triflic anhydride, are prepared by reacting a sulfonic acid or a mixture of two sulfonic acids with a reactant exhibiting acid pseudohalide tautomerism and containing at least one carbon atom which is involved in the tautomerism bearing two halogen atom substituents.

    摘要翻译： 磺酸酐，尤其是三氟甲磺酸酐通过使磺酸或两种磺酸的混合物与表现出酸拟卤化物互变异构体的反应物反应并含有至少一个参与具有两个卤素原子取代基的互变异构体的碳原子来制备。

    Process for preparing alkylsulfonic anhydrides
    3.
    发明授权
    Process for preparing alkylsulfonic anhydrides 失效
    烷基磺酸酐的制备方法

    公开(公告)号：US5292947A

    公开(公告)日：1994-03-08

    申请号：US952228

    申请日：1992-09-28

    申请人： Theodore R. Walker, Jr.

    发明人： Theodore R. Walker, Jr.

    IPC分类号： C07C303/00 ,  C07C303/22 ,  C07C309/00 ,  C07C309/04 ,  C07C45/00

    CPC分类号： C07C303/22 ,  C07C303/00

    摘要： This invention relates to a process for preparing an alkylsulfonic anhydride comprising contacting(A) a dehydrated phosphoric acid with(B) an alkylsulfonic acid having 1 to 6 carbon atoms, under conditions of temperature and pressure to result in the substituted absence of phosphoric/alkylsulfonic mixed anhydride and production of a mixture of alkylsulfonic acid and its corresponding anhydride at a conversion of at least 10% of alkylsulfonic acid to the corresponding alkylsulfonic anhydride.

    摘要翻译： 本发明涉及一种制备烷基磺酸酐的方法，其包括使（A）脱水磷酸与（B）具有1至6个碳原子的烷基磺酸在温度和压力条件下接触，导致不含磷酸/烷基磺酸 混合酸酐和烷基磺酸及其相应的酸酐的混合物的生产，其中烷基磺酸的至少10％转化成相应的烷基磺酸酐。

    Method of preparing trifluoromethanesulfonic acid anhydride
    4.
    发明授权
    Method of preparing trifluoromethanesulfonic acid anhydride 失效
    制备三氟甲磺酸酐的方法

    公开(公告)号：US5004829A

    公开(公告)日：1991-04-02

    申请号：US506206

    申请日：1990-04-09

    申请人： Minoru Aramaki ,  Takashi Suenaga ,  Hiroaki Sakaguchi ,  Takanori Hamana

    发明人： Minoru Aramaki ,  Takashi Suenaga ,  Hiroaki Sakaguchi ,  Takanori Hamana

    IPC分类号： C07C303/00 ,  C07C309/06

    CPC分类号： C07C303/00 ,  Y10S203/06 ,  Y10S203/90

    摘要： (CF.sub.3 SO.sub.2).sub.2 O is formed by reaction of CF.sub.3 SO.sub.3 H with P.sub.2 O.sub.5 and taken out of the reaction system by distillation, but the residue of the distillation contains a considerable amount of unreacted CF.sub.3 SO.sub.3 H. From the residue unreacted by adding water or a phosphoric acid solution, preferably the latter, to the residue to obtain a fluidic mixture containing an adequate amount of water and subjecting the mixture to distillation, preferably under reduced pressure at temperatures ranging from 180.degree. to 280.degree. C. It is possible to form additional CF.sub.3 SO.sub.3 H during the recovery process by adding a metal salt of CF.sub.3 SO.sub.3 H to the aformentioned mixture since the metal salt is decomposed by phosphoric acid contained in the mixture.

    摘要翻译： （CF 3 SO 2）2 O通过CF 3 SO 3 H与P 2 O 5的反应形成，并通过蒸馏从反应体系中取出，但蒸馏残余物含有大量未反应的CF 3 SO 3 H。 从残留物中加入水或磷酸溶液未反应的残余物加入到残渣中，得到含有足量水的流体混合物，优选在180-280℃的温度下进行减压蒸馏 在回收过程中可以通过向上述混合物中加入CF 3 SO 3 H的金属盐形成另外的CF 3 SO 3 H，因为金属盐被混合物中所含的磷酸分解。

    Mixed carboxylic/sulfonic anhydrides in peroxygen bleaching
    5.
    发明授权
    Mixed carboxylic/sulfonic anhydrides in peroxygen bleaching 失效
    过氧漂白中混合的羧酸/磺酸酐

    公开(公告)号：US4110074A

    公开(公告)日：1978-08-29

    申请号：US838902

    申请日：1977-10-03

    申请人： Joseph H. Finley ,  John H. Blumbergs ,  Clifford A. Erickson

    发明人： Joseph H. Finley ,  John H. Blumbergs ,  Clifford A. Erickson

    IPC分类号： C11D7/54 ,  C07C303/00 ,  C07C309/04 ,  C07C309/30 ,  C11D3/39 ,  D06L3/02

    CPC分类号： C07C303/00 ,  C11D3/3915 ,  D06L3/021

    摘要： A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator, an anhydride of a carboxylic acid with a sulfonic acid selected from the formulae consisting ofR.sub.1 --(SO.sub.2 OC(O)--R.sub.2).sub.n and (R.sub.1 --SO.sub.2 OC(O)).sub.n R.sub.2wherein n is an integer of 1 to 3; each of R.sub.1 and R.sub.2, which may be alike or different, is selected from the class consisting of a 1 to 3 valent hydrocarbon radical derived from an alkane of 1 to 16 carbon atoms, a cycloalkane of 3 to 7 carbon atoms and an arene of 6 to 12 aromatic carbon atoms while taken together R.sub.1 and R.sub.2 can complete an o-phenylene or an o-naphthalene ring, said hydrocarbon radicals optionally bearing 1 to 3 substituents selected from the class consisting of alkoxy of 1 to 16 carbon atoms on the arene, aliphatic carboxamido of 1 to 16 carbon atoms on the arene, alkyl of 1 to 16 carbon atoms on the arene, benzamido on the arene, nitro, chlorine, bromine and fluorine. Also described are dry blend compositions containing the activator and peroxygen.

    摘要翻译： 将织物浸入含有作为过氧活化剂的过氧漂白浴中，将织物的污垢和/或污渍除去，其中羧酸的酸酐选自下列通式：R1-（SO2OC（O） - R2）n和（R1-SO2OC（O））nR2其中n是1至3的整数; R1和R2各自可以相同或不同，选自衍生自1至16个碳原子的烷烃的1至3价烃基，3至7个碳原子的环烷烃和 6至12个芳族碳原子，同时R 1和R 2可以完成邻 - 亚苯基或邻 - 萘环，所述烃基任选地带有1-3个选自芳族化合物中的1至16个碳原子的烷氧基的取代基 芳烃上的1至16个碳原子的脂族甲酰胺基，芳烃上的1至16个碳原子的烷基，芳烃，硝基，氯，溴和氟上的苯甲酰氨基。 还描述了含有活化剂和过氧化物的干混组合物。