The process of treatment and utilization of organic chlorinecompounds: 1,2-dichloropropane and propylene chlorohydrin, wereinvestigated with application of contact catalysts to obtain thelowest possible temperature of...The process of treatment and utilization of organic chlorinecompounds: 1,2-dichloropropane and propylene chlorohydrin, wereinvestigated with application of contact catalysts to obtain thelowest possible temperature of the process by selection of propercatalysts and determination of optimum reaction parameters.Experiments were carried out with application of oxide, copper-zinc(TMC-2, TCM 3/1) and platinum (PA-2) Catalysts. Results ofinvestigations proved the possibility of total oxidation ofabove-mentioned compounds And components of industrial wastewater inthe temperature range form 350 to 450 deg. C.展开更多
Traditional chrome tanning technology is still widely used today. In this technology, chrome shaving as well as chrome contained effluent in tanning and retanning processes is a big issue in the industry. Wet white ta...Traditional chrome tanning technology is still widely used today. In this technology, chrome shaving as well as chrome contained effluent in tanning and retanning processes is a big issue in the industry. Wet white tanning technology has been gaining in importance in recent years, but in general, the comprehensive performance of chrome-free tanned leather is not comparable with that of chrome tanned leather. In the present work, chrome-free tanning and chrome tanning are combined in a reversed procedure, which produces leather with chrome tanned leather quality without chrome tanned leather waste problems. In this procedure, a special amphoteric organic compound, no pickle, no salt chrome-free tanning agent TWT was used to tan delimed hides （no pickle） making wet white with shrinking temperature at 80-85 ~C. Then, new method called reversed tanning further process the wet white into chrome-tanned crust. In this reversed method, retanning, fatliquoring and coloring processes were carried out before chrome tanning. This technology eliminates chrome waste issue in tanning, shaving, post tanning processes. The chrome contained effluent is only concentrated in the last chrome tanning process. The leather made with this technology has complete conventional chrome-tanned leather quality. In this way, chrome leather quality without chrome waste problems was achieved. So, it is a new clean tanning technology.展开更多
基金Project (No. 3T09B 01112) partly supported by the Polish State Committee for Scientific Research.
文摘The process of treatment and utilization of organic chlorinecompounds: 1,2-dichloropropane and propylene chlorohydrin, wereinvestigated with application of contact catalysts to obtain thelowest possible temperature of the process by selection of propercatalysts and determination of optimum reaction parameters.Experiments were carried out with application of oxide, copper-zinc(TMC-2, TCM 3/1) and platinum (PA-2) Catalysts. Results ofinvestigations proved the possibility of total oxidation ofabove-mentioned compounds And components of industrial wastewater inthe temperature range form 350 to 450 deg. C.
文摘Traditional chrome tanning technology is still widely used today. In this technology, chrome shaving as well as chrome contained effluent in tanning and retanning processes is a big issue in the industry. Wet white tanning technology has been gaining in importance in recent years, but in general, the comprehensive performance of chrome-free tanned leather is not comparable with that of chrome tanned leather. In the present work, chrome-free tanning and chrome tanning are combined in a reversed procedure, which produces leather with chrome tanned leather quality without chrome tanned leather waste problems. In this procedure, a special amphoteric organic compound, no pickle, no salt chrome-free tanning agent TWT was used to tan delimed hides （no pickle） making wet white with shrinking temperature at 80-85 ~C. Then, new method called reversed tanning further process the wet white into chrome-tanned crust. In this reversed method, retanning, fatliquoring and coloring processes were carried out before chrome tanning. This technology eliminates chrome waste issue in tanning, shaving, post tanning processes. The chrome contained effluent is only concentrated in the last chrome tanning process. The leather made with this technology has complete conventional chrome-tanned leather quality. In this way, chrome leather quality without chrome waste problems was achieved. So, it is a new clean tanning technology.
