当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
10期
1995-1997
,共3页
代敏%马忠庭%韩云
代敏%馬忠庭%韓雲
대민%마충정%한운
乙酸废水%络合萃取%红外表征%再生技术%萃取效率
乙痠廢水%絡閤萃取%紅外錶徵%再生技術%萃取效率
을산폐수%락합췌취%홍외표정%재생기술%췌취효솔
Acetic acid wastewater%Complexation extraction%IR characterization%Regeneration technology
采用三辛胺-正辛醇-煤油萃取剂体系对含有乙酸的化工废水迚行处理,研究了萃取剂对不同浓度乙酸的萃取效率,考察了再生后萃取剂的应用效果。结果表明:当工业水中乙酸浓度由1%增加到10%时,萃取剂对乙酸的萃取效率逐渐降低。对浓度5%、10%乙酸的水样迚行络合萃取后上层的萃取液经红外表征,络合萃取物的结构収生了一定的变化。真空度为0.07~0.08 MPa,控制塔釜蒸馏温度至165℃,采用减压蒸馏对络合萃取物再生,经红外光谱定性分析及试验效果的验证,回收得到的萃取剂其使用效果不变。
採用三辛胺-正辛醇-煤油萃取劑體繫對含有乙痠的化工廢水迚行處理,研究瞭萃取劑對不同濃度乙痠的萃取效率,攷察瞭再生後萃取劑的應用效果。結果錶明:噹工業水中乙痠濃度由1%增加到10%時,萃取劑對乙痠的萃取效率逐漸降低。對濃度5%、10%乙痠的水樣迚行絡閤萃取後上層的萃取液經紅外錶徵,絡閤萃取物的結構収生瞭一定的變化。真空度為0.07~0.08 MPa,控製塔釜蒸餾溫度至165℃,採用減壓蒸餾對絡閤萃取物再生,經紅外光譜定性分析及試驗效果的驗證,迴收得到的萃取劑其使用效果不變。
채용삼신알-정신순-매유췌취제체계대함유을산적화공폐수중행처리,연구료췌취제대불동농도을산적췌취효솔,고찰료재생후췌취제적응용효과。결과표명:당공업수중을산농도유1%증가도10%시,췌취제대을산적췌취효솔축점강저。대농도5%、10%을산적수양중행락합췌취후상층적췌취액경홍외표정,락합췌취물적결구수생료일정적변화。진공도위0.07~0.08 MPa,공제탑부증류온도지165℃,채용감압증류대락합췌취물재생,경홍외광보정성분석급시험효과적험증,회수득도적췌취제기사용효과불변。
The extractantcontainingtrialkylamine, n-octanol and kerosene was used to treatacetic acid-containing chemical industrial wastewater.Effect of acetic acid concentration on extracting efficiency wasinvestigated. Furthermore, application effect of regenerated extractant was analyzed. The results show that the extracting efficiency decreasesgraduallywithincreasingof the acetic acid concentrationfrom1%to 10%in chemical industrial wastewater. IR characterizationshow thatthe structure of extracted liquid changestoa certain degreein5%and 10%aceticacid wastewater. The extracted liquid was regeneratedunderthe vacuum degree 0.07~0.08MPa and the distilling temperature 165℃. The effect of regenerated extractant has been investigated by IR spectra and proved by experiment results. The applicationeffect of regenerated extractantison the same level corresponding to the effect of fresh extractant.