摘要
新鲜二氧化硫脲废水中主要含有二氧化硫脲、H2O2和三氧化硫脲等污染物质:废水中的二氧化硫脲与H2O2可以转化成三氧化硫脲;废水中H2O2与另外加入的适量硫脲反应得到二氧化硫脲粗品,有很高的收率,所得粗品在预置水中溶解而被全部利用;减压蒸发可以回收三氧化硫脲,回收量21kg/m3.
The fresh wastewater from thiourea dioxide production contains mainly thiourea dioxide, H2O2, thiourea trioxide etc as pollutants. The thiourea dioxide and H2O2 in the wastewater can be turned to thiourea trioxide. Thiourea, when added in adequate amount in the wastewater, can be oxidized by H2O2 into crude thiourea dioxide in high yield. The crude product dissolves in the pre-put water and can be totally utilized. Thiourea trioxide may also be recovered by evaporation at reduced pressure at a yield of 21 kg/m3.
出处
《印染助剂》
CAS
北大核心
2004年第2期40-42,共3页
Textile Auxiliaries
