沈阳化工大学学报
瀋暘化工大學學報
침양화공대학학보
JOURNAL OF SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
2011年
2期
110-116
,共7页
詹叶敬%徐恒振%张明%赵元凤
詹葉敬%徐恆振%張明%趙元鳳
첨협경%서항진%장명%조원봉
粪固醇%吸附率%等温吸附式%吉布斯方程%分配系数
糞固醇%吸附率%等溫吸附式%吉佈斯方程%分配繫數
분고순%흡부솔%등온흡부식%길포사방정%분배계수
faecal sterols%sorptive percentage%isothermal adsorption equation%Gibbs equation%allocation ratio
研究粗胡敏素对12种粪固醇的吸附行为.探讨吸附液的pH值、盐度、温度因素对吸附的影响.结果表明:粗胡敏素对粪固醇的吸附可分为快吸附、慢吸附2个阶段,24 h吸附达到平衡,且吸附符合Freund lich模型,线性、Longmu ir型拟合效果较差.粪固醇在粗胡敏素上吸附△H0、△S0均小于0,反应是放热过程,温度的升高不利于反应的进行.分配系数与盐度正相关.除pH=10.74时,其它pH值条件下分配系数无明显差异.
研究粗鬍敏素對12種糞固醇的吸附行為.探討吸附液的pH值、鹽度、溫度因素對吸附的影響.結果錶明:粗鬍敏素對糞固醇的吸附可分為快吸附、慢吸附2箇階段,24 h吸附達到平衡,且吸附符閤Freund lich模型,線性、Longmu ir型擬閤效果較差.糞固醇在粗鬍敏素上吸附△H0、△S0均小于0,反應是放熱過程,溫度的升高不利于反應的進行.分配繫數與鹽度正相關.除pH=10.74時,其它pH值條件下分配繫數無明顯差異.
연구조호민소대12충분고순적흡부행위.탐토흡부액적pH치、염도、온도인소대흡부적영향.결과표명:조호민소대분고순적흡부가분위쾌흡부、만흡부2개계단,24 h흡부체도평형,차흡부부합Freund lich모형,선성、Longmu ir형의합효과교차.분고순재조호민소상흡부△H0、△S0균소우0,반응시방열과정,온도적승고불리우반응적진행.분배계수여염도정상관.제pH=10.74시,기타pH치조건하분배계수무명현차이.
The sorption of 12 kinds of faecal sterols in humin and the affection to sorption of acid values,salt and tempterature was studied in this paper.The results were shown that the sorption were comprised of quick and slow processes which was in balance after 24 hours.Besides,the Freundlich curve which was more favorable than linearity and langumir curve was able to describe the sorptive process.Entropy and enthalpy were less than the value of zero,which suggested the reaction disspipated heat,the augmentation on tempterature went against the process.The allocation ratio was positively related to salt.The acid values did not affect to the allocation ratio except the value of 10.74.