变型二浴法新工艺的研究(一)——变型二浴法新还原剂的筛选

The Studies for New Process of Modified Two Bath Chrome Tannage(Ⅰ)——The choice of new reducing agent about modififed two bath chrome tannage

本研究试图通过对不同还原剂与重铬酸盐的化学反应的考查及变型二浴法工艺试验筛选出新的还原剂,用于解决现行变型二浴法存在的主要问题,并对筛选出的还原剂焦亚硫酸钠同大苏打做了工艺对比试验。

In this study, We have chosen a new reducing agent by reserching thechemical reactions of thedichromate with different reducing agents, andtesting of modified two bath chrome tannage process. The new reducingagent can be used to solve the important problem in modified two bathtannage.we have also taken a comparison test in process between sodium hyposulfite and sodium pyrosulfite——chosen reducing agent.