河北化工
河北化工
하북화공
HEBEI CHEMICAL ENGINEERING AND INDUSTRY
2011年
9期
50-52,56
,共4页
精苯再生酸%净化%研究
精苯再生痠%淨化%研究
정분재생산%정화%연구
waste acid from benzol refining%purification%study
采用萃取法净化精苯再生酸。利用相似相容原理,使废酸中的有机物转移到萃取剂中,使硫酸分离出来。通过萃取处理,废酸中的CODCr由13.56×104降至3.92×104 mg/L,CODCr去除率〉70%,回收的净化酸可用于硫铵制备。
採用萃取法淨化精苯再生痠。利用相似相容原理,使廢痠中的有機物轉移到萃取劑中,使硫痠分離齣來。通過萃取處理,廢痠中的CODCr由13.56×104降至3.92×104 mg/L,CODCr去除率〉70%,迴收的淨化痠可用于硫銨製備。
채용췌취법정화정분재생산。이용상사상용원리,사폐산중적유궤물전이도췌취제중,사류산분리출래。통과췌취처리,폐산중적CODCr유13.56×104강지3.92×104 mg/L,CODCr거제솔〉70%,회수적정화산가용우류안제비。
The extraction process is used to deal with the waste acid from benzol refining.This method is based on the si-militude and compatibility principle.Sulfuric acid was separated by transferring the organics in the waste acid to the ex-tracting agent.After the extraction process the CODCr number in waste sulfuric acid fell down from 13.56×10 4 to 3.92× 10 4 mg/L,and the percentage of CODCr removal could reach up to 70%.The acid purified can be used in the produc-tion of ammonium sulfate.
