优化二氧化硫脲生产工艺。
当二氧化硫脲量小，加金灰化时，灰化中心分布在颗粒表面和次表面；
When emulsions were fogged by (1) a small amount of thiourea dioxide and gold salt, fog centers distributed on the grain surface and sub-surface;
同时，我们拥有自己的化工生产基地，生产二氧化硫脲和异噻唑啉酮及杀生剂系列产品。
Meanwhile, we have our own chemical industry production base, and produce Thiourea Dioxide, Isothiazoline Series and Biocides.
追踪了产物中硫酸盐的浓度，认为二氧化硫脲的深度氧化是主要的串联副反应，并与二氧化硫脲本身分子结构有关。
Sulphat concentration in products was examined. Deeper oxidation of TD is primary series by-reaction, and it is connected with the molecular structure of TD.
就二氧化硫脲（TD）漂白中的三个主要过程参数（时间、温度和TD用量）对回收旧报纸浆漂白的影响进行了研究。
The effects of the three main process variables(time, temperature and thiourea dioxide charge)on thiourea dioxide(TD)bleaching of pulp from recycled old newspaper were studied.
就二氧化硫脲（TD）漂白中的三个主要过程参数（时间、温度和TD用量）对回收旧报纸浆漂白的影响进行了研究。
The effects of the three main process variables(time, temperature and thiourea dioxide charge)on thiourea dioxide(TD)bleaching of pulp from recycled old newspaper were studied.
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