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公开(公告)号：US20150065707A1
公开(公告)日：2015-03-05
申请号：US14368092
申请日：2012-11-30
发明人： Bingtao Tang , Shufen Zhang , Wei Ma
IPC分类号： C07D251/50 , C07D251/38 , C09B49/00 , C07D251/44
CPC分类号： C07D251/50 , C07D251/38 , C07D251/44 , C09B49/00 , D06P1/30
摘要： The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.
摘要翻译： 本发明提供一组具有羧基的水溶性硫化染料。 对于这种染料，硫化钠首先通过硫化钠还原成无色化合物，并且无色化合物与含有羧基的活性化合物反应，得到含有羧基的水溶性硫化染料。 本发明提供的水溶性硫化染料适用于棉，羊毛，丝绸和皮革的染色。 既具有水溶性又具有羧基反应性，产品使用简便，色牢度好，具有广泛的应用前景。
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公开(公告)号：US11071967B2
公开(公告)日：2021-07-27
申请号：US15776985
申请日：2017-03-02
发明人： Wei Ma , Shibo Duan , Shuangen Yu , Fanqing Meng , Ren Wang , Jun Xu , Liyan Guo , Lei Wu , Zhuo Liu , Dazhi Tan
摘要： The invention belongs to the field of chemical separation, hydrometallurgy and resource recovery and provides a method for preparing and applying of ion-keeper adsorbent. By adjusting the pH to selective oxidation to achieve the oxidation of ferrous iron into ferric iron. Separates the iron after the hydrothermal reaction; By using of ion imprint “ion keeper” effect and biomass as raw materials, to prepare the adsorbent with internal rules, hierarchical pores and high selectivity. It can be used for deep purification of chromium solution, such as iron, aluminum, vanadium and other impurities in the solution; After the deep purification of chromium solution, then adjusting the pH, adding appropriate hydrating agent, by hydrothermal precipitation treatment of chrome, filtration, acid washing and calcination to obtain chromium oxide crystal. It achieves the purification of chromium, iron, aluminum and chromium. The recycling and comprehensive utilization of waste resources are also realized. The process is simple, the iron, aluminum, vanadium and other impurities are in the selective adsorption. Chromium solution after deep purification can be processed for high purity chromium products to provide technical support.
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公开(公告)号：US09193696B2
公开(公告)日：2015-11-24
申请号：US14368092
申请日：2012-11-30
发明人： Bingtao Tang , Shufen Zhang , Wei Ma
IPC分类号： C07D251/50 , C07D251/44 , C07D251/38 , C09B49/00 , D06P1/30
CPC分类号： C07D251/50 , C07D251/38 , C07D251/44 , C09B49/00 , D06P1/30
摘要： The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.
摘要翻译： 本发明提供一组具有羧基的水溶性硫化染料。 对于这种染料，硫化钠首先通过硫化钠还原成无色化合物，并且无色化合物与含有羧基的活性化合物反应，得到含有羧基的水溶性硫化染料。 本发明提供的水溶性硫化染料适用于棉，羊毛，丝绸和皮革的染色。 既具有水溶性又具有羧基反应性，产品使用简便，色牢度好，具有广泛的应用前景。
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