Process for the manufacture of a sulfenimide
    2.
    发明授权
    Process for the manufacture of a sulfenimide 有权
    制备亚硫酰亚胺的方法

    公开(公告)号:US06184385B2

    公开(公告)日:2001-02-06

    申请号:US09292682

    申请日:1999-04-16

    IPC分类号: C07D41712

    CPC分类号: C07D277/80

    摘要: A process for the manufacture of a sulfenimide by reacting sulfenamide in slurry with a water immiscible organic solvent with an acid to yield a solvent slurry comprising sulfenimide product. The product is recovered from the solvent slurry by a method comprising the addition of water to the solvent slurry and the isolating of the product by a single filtration step. While water is added to the solvent slurry an azeotrope of solvent and water may be distilled under vacuum until substantially all solvent is separated from product and product becomes part of an aqueous slurry. Alternatively, water may be added to the solvent slurry while the resulting mixture is being agitated, followed by filtering the mixture in the single filtration step for recovery of product from the mixture.

    摘要翻译: 通过使浆料中的次磺酰胺与与水不混溶的有机溶剂与酸反应制备亚磺酰亚胺的方法,以产生包含亚硫酰亚胺产物的溶剂浆料。 通过包括向溶剂浆料中加入水并通过单一过滤步骤分离产物的方法从溶剂浆料中回收产物。 当将水加入到溶剂浆料中时,溶剂和水的共沸物可以在真空下蒸馏,直到基本上所有溶剂与产物分离,并且产物成为含水浆料的一部分。 或者,可以在搅拌所得混合物的同时将水加入到溶剂淤浆中,然后在单过滤步骤中过滤混合物以从混合物中回收产物。

    Manufacture of zinc hexasulfide amine complexes
    5.
    发明授权
    Manufacture of zinc hexasulfide amine complexes 失效
    六硫化锌复合物的制造

    公开(公告)号:US06420581B1

    公开(公告)日:2002-07-16

    申请号:US09605777

    申请日:2000-06-28

    IPC分类号: C07F306

    CPC分类号: C07F3/003

    摘要: A process for the manufacture of zinc hexasulfide amine complexes comprising reacting zinc, sulfur and a molar excess of amine at an elevated temperature to obtain a reaction mixture comprising zinc hexasulfide amine complexes and excess amine. A first solvent in which the zinc hexasulfide amine complexes are largely not soluble is added to obtain a slurry of the reaction mixture. The zinc hexasulfide amine complexes may be recovered in a subsequent separation process.

    摘要翻译: 一种用于制造六硫化锡胺络合物的方法,包括在升高的温度下使锌,硫和摩尔过量的胺反应,以获得包含六硫化锡胺络合物和过量胺的反应混合物。 加入六硫化锌胺配合物大部分不溶解的第一溶剂被加入以获得反应混合物的浆液。 六硫化锌胺络合物可以在随后的分离过程中回收。