文档介绍：Research on preparation and performance of environmentally friendly scale inhibition
and dispersion agent
Yan MeiFang, Liu ZhenFa
Institute of Energy Resources, Hebei Academy of Science
Hebei Engineering Research Center for Water Saving in Wu XiuLi, Hu XiaoJing
Industry College of Chemical Engineering, Hebei
Shijiazhuang, China University of Technology
E-mail:yanmeifang525@ Tianjin, China
Abstract—A posite was prepared from Polyaspartic
acid (PASP), inic acid (PESA) and aconitic
acid-acrylic acid copolymer (AA-AA). The performances of scale Ⅱ. EXPERIMENTAL
inhibiting, dispersion and biodegradability of the ternary A. Preparation of inhibition and dispersion agents
composite in different mass ratio were studied. The results
showed that when the mass ratio m(PASP):m(PESA):m(AA-AA) PASP (self-preparation[7], aqueous solution, effective
was 1:1:2, the scale inhibition on calcium carbonate was %, substance content 18%), PESA (market, aqueous solution,
the transmittance on dispersing ferric oxide was % and its effective substance content 40%), AA-AA (self-preparation[8],
biodegradability efficiency was 76% on the 28th day of the aqueous solution, effective substance content30%), other
posite at a dosage of 12 mg/L . The results of reagents are all AR.
dynamic experiment indicated that the posite was
an environmentally friendly scale inhibitor which was applicable Put the positions by different mass ratio of
to high hardness water. The scale inhibition on calcium effective substance into a flask and add deionized water to
carbonate is still more than 90% when water hardness is configure into a certain concentration of solution, stand-by.
1056mg/L.
B. Performance evaluation of scale inhibition and dispersion
Keywords- environmentally friendly; polyaspartic acid; 1) measurement of the rate of static scale inhibition
inic acid; scale inhibition; dispersion; composite
The water sample used in sta