还原橄榄绿B的电化学还原及其染色工艺的探讨

Investigation of electrochemical reduction and dyeing technology of Vat Olive Green B

以贵金属氧化涂层网状钛电极为阳极(在阳极电解池中加入35 g/L H2SO4作为电解质),Cu为阴极{在阴极电解池中加入六水硫酸铁[Fe2(SO4)3.6H2O]、三乙醇胺(TEA)、NaOH作为还原染液},Ag/AgCl电极为参比电极组成的电解装置中进行还原橄榄绿B染料的电化学还原染色.结果表明:在还原橄榄绿B 0.2 g/L,Fe2(SO4)3.6H2O 5 g/L,TEA 35 g/L,NaOH 13 g/L,外加电压5 V,阴极面积25cm2,40℃还原染色70 min,可以获得较好的染色效果.

The electrochemical reduction of Vat Olive Green B was carried out in electrolytic equipment with reticular Ti electrode having noble metal oxidation coating as the anode （adding 35 g/L H2SO4 in the anodic cell as the electrolyte）, Cu as the cathode{adding ferric sulfate hexahydrate [Fe2（SO4）3·6H2O], triethanolamine （TEA） and NaOH in the cathodic cell as the reductant dye liquor },and Ag/AgCl electrode as the reference electrode.The results show thant the good dye uptake in Vat Olive Green B 0.2 g/L, TEA 35 g/L, Fe2 （SO4）3·6H2O5 g/L, NaOH 13 g/L, voltage 5 V, area of cathode 25 cm^2 and the reducing and dyeing 70 min in 40℃.