| 不同阻垢剂对方解石和磷酸钙表面电位的影响 |
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| 引用本文： | 王京,陆婉珍.不同阻垢剂对方解石和磷酸钙表面电位的影响[J].岩矿测试,1998,17(4):241-248. |
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| 作者姓名： | 王京 陆婉珍 |
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| 作者单位： | 中国石油化工集团公司石油化工科学研究院,北京,100083 |
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| 基金项目： | 中国石化集团公司技术开发中心资助课题 |
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| 摘 要： | 采用微电泳法考察了１５种阻垢剂对方解石和磷酸钙颗粒表面电位的影响。实验结果表明，在各种药剂中，丙烯酸／２丙烯酰胺基２甲基丙磺酸／次磷酸调聚物对难溶盐表面电位影响最大，乙二胺四乙酸二钠盐的影响最小。乙二胺四甲叉膦酸的溶垢能力和对表面电位的影响都较强。各种药剂对两种难溶盐表面电位影响的排序差异不显著。根据配位化学和表面化学原理解释了实验结果。
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| 关 键 词： | 阻垢剂 ζ-电位 方解石 磷酸钙 聚丙烯酸 乙二胺四甲叉膦酸 |
| 修稿时间： | 1997-10-13 |
Effects of Different Scale Inhibitors on the Surface Potentials of Calcite and Calcium Phosphate |
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| Wang Jing,Lu Wanzhen.Effects of Different Scale Inhibitors on the Surface Potentials of Calcite and Calcium Phosphate[J].Rock and Mineral Analysis,1998,17(4):241-248. |
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| Authors: | Wang Jing Lu Wanzhen |
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| Abstract: | The effects of fifteen scale inhibitors on the surface potentials of calcite and calcium phosphate are examined using microelectrophoretic technique. Among these inhibitors, AA/AMPS/POCA has the strongest effect on the surface potentials of the sparingly soluble salts and EDTA has the weakest effect on that. The abilities of EDTMP to dissolve scales and affect both zeta potentials of calcite and calcium phosphate are stronger than most of other inhibitors. The orders of magnitude of all inhibitors affecting zeta potentials for both salts are nearly the same. These results are explained on the basis of the principles of ligand and surface chemistry. The overall order in terms of decreasing the absolute value of zeta potentials on calcite, of various inhibitors studied is AA/AMPS/POCA > EDTMP > PBTC > AA/HEA > PAA-1 > SHMP > AA/AMPS/ MA > PAAS > AA/ HAPS > HEDP > AA/IPP >PAA 2>HPAA>ATMP> EDTA Na 2 > Blank. |
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| Keywords: | scale inhibitor zeta potential calcite calcium phosphate polyacrylic acid(PAA) ethylenediaminetetra methylenephosphonic acid(EDTMP) |
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