Process for the production of polymeric sulfur
    24.
    发明申请
    Process for the production of polymeric sulfur 审中-公开
    生产聚合硫的方法

    公开(公告)号:US20050143507A1

    公开(公告)日:2005-06-30

    申请号:US10894696

    申请日:2004-07-20

    IPC分类号: C01B17/12 C08K3/30

    CPC分类号: C01B17/12

    摘要: The present invention relates to a process for the production of polymeric sulfur, including a) distilling a mixture of liquid sulfur and a solvent for cycloocta sulfur with a boiling point of less than 444° C. at standard pressure, wherein the bottoms temperature is lower than the boiling temperature of the sulfur and greater than the boiling temperature of the solvent and is at least 120° C.; b) quenching of the sulfur melt obtained as the bottoms product of the distillation according to a) with a non-basic liquid or a mixture of non-basic liquids to a temperature below the melting temperature of sulfur.

    摘要翻译: 本发明涉及一种生产聚合硫的方法,包括:a)在标准压力下,将沸点低于444℃的环状硫磺的液态硫和溶剂的混合物蒸馏,其中底部温度较低 比硫的沸点温度高于溶剂的沸点,为至少120℃。 b)将根据a)蒸馏的底部产物获得的硫磺熔体淬火至非碱性液体或非碱性液体的混合物至低于硫的熔融温度的温度。

    Process for the production of insoluble sulfur
    26.
    发明授权
    Process for the production of insoluble sulfur 失效
    生产不溶性硫的方法

    公开(公告)号:US4359452A

    公开(公告)日:1982-11-16

    申请号:US214945

    申请日:1980-12-10

    申请人: Kyung S. Shim

    发明人: Kyung S. Shim

    CPC分类号: C01B17/12

    摘要: A novel process for the preparation of insoluble sulfur product comprises the steps of vaporizing sulfur, mixing the vaporized sulfur with from about 1.times.10.sup.-6 % to about 5% hydrogen sulfide, in the essential absence of hydrocarbon oil, quenching the vaporized sulfur in a quenching medium and separating the insoluble sulfur product from the quenching medium.

    摘要翻译: 用于制备不溶性硫产物的新方法包括在基本不存在烃油的情况下蒸发硫,将蒸发的硫与约1×10-6%至约5%的硫化氢混合的步骤,淬灭中蒸发的硫 并将不溶性硫产物与淬灭介质分离。

    Stabilization of sulphur
    27.
    发明授权
    Stabilization of sulphur 失效
    稳定硫

    公开(公告)号:US4234552A

    公开(公告)日:1980-11-18

    申请号:US79940

    申请日:1979-09-28

    CPC分类号: C01B17/12

    摘要: Sulphur is stabilized in a form wholly or partially insoluble in carbon disulphide by incorporating therewith a dixanthogen of the formula ##STR1## wherein R and R.sup.1 are each independently an alkyl, cycloalkyl, aralkyl or aryl group and may be substituted by halogen or alkoxy and n is 2 or 4. The insoluble sulphur can for example be plastic sulphur or white sulphur or substantially wholly insoluble sulphur derived therefrom. The sulphur is particularly useful in the vulcanization of rubber.

    摘要翻译: 硫通过与其结合而形成全部或部分不溶于二硫化碳的形式,其中R和R 1各自独立地为烷基,环烷基,芳烷基或芳基,并且可以被卤素或烷氧基取代,并且n 是2或4.不溶性硫可以例如是塑料硫或白硫或基本上完全不溶的硫衍生的硫。 硫在硫化橡胶中特别有用。

    Sulfur plasticization with olefins
    28.
    发明授权
    Sulfur plasticization with olefins 失效
    用烯烃进行硫增塑

    公开(公告)号:US4190460A

    公开(公告)日:1980-02-26

    申请号:US892815

    申请日:1978-04-03

    申请人: Richard D. Cassar

    发明人: Richard D. Cassar

    IPC分类号: C01B17/12 C04B28/36 C09K3/00

    CPC分类号: C01B17/12 C04B28/36

    摘要: A process for plasticizing sulfur to obtain a flexible, elastomeric product by reacting a mixture of dicyclopentadiene and a second cyclic diene or a di- or triolefinic terpene with sulfur.

    摘要翻译: 通过使二环戊二烯和第二环状二烯烃或二烯或三烯烃萜烯与硫的混合物反应来使硫增塑以获得柔性弹性体产品的方法。

    Method for producing insoluble sulfur
    29.
    发明授权
    Method for producing insoluble sulfur 失效
    生产不溶性硫的方法

    公开(公告)号:US3689227A

    公开(公告)日:1972-09-05

    申请号:US3689227D

    申请日:1971-11-12

    申请人: UNION OIL CO

    发明人: BLOCK MICHAEL J

    IPC分类号: C01B17/12 B01D11/02 C01D9/00

    CPC分类号: C01B17/12

    摘要: A PROCESS FOR PRODUCING INSOLUBLE SULFUR IS DISCLOSED AND INCLUDES THE STEPS OF MELTING AND HEATING SULFUR TO A TEMPERATURE OF FROM 400 TO 800* F. AND THEREAFTER QUICKLY QUENCHING THE MOLTEN SULFUR WITHIN AN AQUEOUS SOLUTION CONTAINING HYDROGEN PEROXIDE.