Process for isolating H acid and K acid
    1.
    发明授权
    Process for isolating H acid and K acid 失效
    H酸和K酸分离方法

    公开(公告)号:US4426334A

    公开(公告)日:1984-01-17

    申请号:US368194

    申请日:1982-04-14

    CPC分类号: C07C303/44

    摘要: The invention relates to a process for isolating H acid and K acid in the form of their monoalkali metal salts from acid aqueous solutions which contain these two acids and alkali metal ions and may contain other aminonaphtholdisulphonic acids, in which process H acid monoalkali metal salts are precipitated at elevated temperatures from solutions which contain not only sodium ions but also potassium ions and then precipitating K acid monoalkali metal salts by cooling down the filtrate obtained after separating off the H acid monoalkali metal salts.

    摘要翻译: 本发明涉及一种从含有这两种酸和碱金属离子的酸性水溶液中分离其单碱金属盐形式的H酸和K酸的方法,并且可以含有其它氨基十氢四氢呋喃磺酸,其中H酸单碱金属盐为 在不仅含钠离子和钾离子的溶液中在高温下沉淀,然后通过冷却分离H酸单碱金属盐后得到的滤液而沉淀K酸单碱金属盐。

    Process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid
(k-acid)
    2.
    发明授权
    Process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid (k-acid) 失效
    制备1-氨基-8-萘酚-4,6-二磺酸(k-酸)的方法

    公开(公告)号:US4609503A

    公开(公告)日:1986-09-02

    申请号:US195024

    申请日:1980-10-08

    CPC分类号: C07C303/22

    摘要: The invention relates to a process for the preparation of 1-amino-8-naphthol-4,6-disulphonic acid (K-acid) as the mono-alkali metal salt by reacting a mixture of naphthylaminetrisulphonic acids and/or salts thereof with an alkali metal salt solution and separating the K-acid as the mono-alkali metal salt, by acidification and crystallization. The product is a known valuable dyestuff intermediate.

    摘要翻译: 本发明涉及通过使萘基氨基三硫酸和/或其盐与一种碱金属盐的混合物与一种碱金属盐的混合物制备1-氨基-8-萘酚-4,6-二磺酸(K-酸) 碱金属盐溶液,并通过酸化和结晶分离K-酸作为单碱金属盐。 该产品是已知的有价值的染料中间体。

    Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid
(H-acid)
    3.
    发明授权
    Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid) 失效
    制备1-氨基-8-萘酚-3,6-二磺酸(H酸)的方法

    公开(公告)号:US4166826A

    公开(公告)日:1979-09-04

    申请号:US920032

    申请日:1978-06-28

    CPC分类号: C07C303/22

    摘要: A process has been invented for the preparation of a mono-alkali metal of 1-amino-8-naphthol-3,6-disulphonic acid, comprising reacting 1-naphthylamine-3,6,8-trisulphonic acid and/or a salt thereof and/or a naphthylamine trisulphonic acid isomer mixture and/or salt thereof with an alkali metal hydroxide solution in the presence of an alcohol and/or alcoholate and in the presence of a substance which contains at least one oxygen atom bonded to a nitrogen atom, at elevated pressure and elevated temperature, and separating out the mono-alkali metal salt of 1-amino-8-naphthol-3,6-disulphonic acid by acidification. The process results in the procurement of higher yields of the desired product and in the formation of less by-products.

    摘要翻译: 已经发明了一种制备1-氨基-8-萘酚-3,6-二磺酸的单碱金属的方法,包括1-萘胺-3,6,8-三磺酸和/或其盐 和/或萘胺三磺酸异构体混合物和/或其盐与碱金属氢氧化物溶液在醇和/或醇化物的存在下,在含有至少一个与氮原子键合的氧原子的物质存在下, 在升高的压力和升高的温度下,通过酸化分离出1-氨基-8-萘酚-3,6-二磺酸的单碱金属盐。 该过程导致采购更高产量的所需产品和形成较少的副产物。

    Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid
(H-acid)
    4.
    发明授权
    Process for the preparation of 1-amino-8-naphthol-3,6-disulphonic acid (H-acid) 失效
    制备1-氨基-8-萘酚-3,6-二磺酸(H酸)的方法

    公开(公告)号:US4178308A

    公开(公告)日:1979-12-11

    申请号:US920033

    申请日:1978-06-28

    CPC分类号: C22B34/12

    摘要: A process has been invented for the preparation of a mono-alkali metal salt of 1-amino-8-naphthol-3,6-disulphonic acid comprising reacting 1-naphthylamine-3,6,8-trisulphonic acid and/or a salt thereof and/or a naphthylamine-trisulphonic acid isomer mixture and/or salt thereof with an alkali metal hydroxide solution at elevated pressure and elevated temperature and in the presence of an alcohol or alcoholate, and separating out the mono-alkali metal salt by acidification. The process results in the procurement of higher yields of the desired product and in the formation of less by-products.

    摘要翻译: 已经发明了一种制备1-氨基-8-萘酚-3,6-二磺酸的单碱金属盐的方法,其包括使1-萘胺-3,6,8-三磺酸和/或其盐 和/或萘胺 - 三磺酸异构体混合物和/或其盐与碱金属氢氧化物溶液在升高的压力和升高的温度下,在醇或醇化物的存在下,通过酸化分离出单碱金属盐。 该过程导致采购更高产量的所需产品和形成较少的副产物。

    N-alkyl-benzenesulphonamide compositions
    6.
    发明授权
    N-alkyl-benzenesulphonamide compositions 失效
    N-烷基 - 苯磺酰胺组合物

    公开(公告)号:US4891156A

    公开(公告)日:1990-01-02

    申请号:US172103

    申请日:1988-03-23

    申请人: Willi Schossler

    发明人: Willi Schossler

    CPC分类号: C07D235/28 C08K5/37 C08K5/43

    摘要: N-Alkyl-benzenesulphonamides, the alkyl group of which is open-chain C.sub.1 -C.sub.12 -alkyl or C.sub.5 -C.sub.7 -cycloalkyl and the benzene nucleus of which can be substituted by C.sub.1 -C.sub.4 -alkyl, can be heat-stablized by 10-1,000 ppm of one or more 2-mercapto-benzimidazole compounds of the formula ##STR1## wherein R.sup.1 denotes hydrogen of a C.sub.1 -C.sub.4 -alkyl group andX.sup.1 denotes hydrogen or 1 equivalent of the metals Zn, Cd or Mn(II).Such stabilized N-alkyl-benzenesulphonamides can be used as plasticizers for polymers having polar groups.

    摘要翻译: N-烷基 - 苯磺酰胺,其烷基是开链的C 1 -C 12 - 烷基或C 5 -C 7 - 环烷基,其苯环可以被C 1 -C 4 - 烷基取代,可以通过10- 1000ppm的一种或多种式(Ⅰ)的2-巯基 - 苯并咪唑化合物其中R1表示C1-C4烷基的氢,X1表示氢或1当量的金属Zn,Cd或Mn(II )。 这种稳定的N-烷基 - 苯磺酰胺可用作具有极性基团的聚合物的增塑剂。

    Process for the preparation of nitroaminobenzenes
    7.
    发明授权
    Process for the preparation of nitroaminobenzenes 失效
    制备硝基氨基苯的方法

    公开(公告)号:US4600797A

    公开(公告)日:1986-07-15

    申请号:US468030

    申请日:1983-02-18

    申请人: Willi Schossler

    发明人: Willi Schossler

    IPC分类号: C07C85/02

    摘要: Process for the preparation of a nitroaminobenzene by nitrating an aminobenzene which is protected at the nitrogen wherein the nitration is carried out by the simultaneous combination of nitric acid and the aminobenzene to be nitrated, in the presence of inert solvents such as methylene chloride.

    摘要翻译: 通过硝化硝基氨基苯的方法,其中氮气保护的氨基苯,其中通过硝酸和待硝化的氨基苯的同时组合在惰性溶剂如二氯甲烷的存在下进行硝化。