| NTS螯合剂研制 |
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| 引用本文： | 伍洪义,王峭松,李海营. NTS螯合剂研制[J]. 应用化工, 1998, 0(4) |
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| 作者姓名： | 伍洪义 王峭松 李海营 |
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| 作者单位： | 中原油田采油工艺研究院 |
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| 摘 要： | 研究了用氯乙酸、氯化铵、氢氧化钠合成螯合剂次氨基三乙酸钠（ＮＴＳ）的方法，考察了反应温度、ｐＨ值对ＮＴＳ收率的影响，得出了最佳合成条件。在配料比氯乙酸∶氯化铵＝３∶１．０２（摩尔比）、反应温度为７０℃、ｐＨ＝１．０时，ＮＴＳ收率达到７５％以上。这种螯合剂用于常规酸化处理中防止铁离子形成氢氧化铁，实验结果表明，ＮＴＳ是一种很好的铁离子稳定剂
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| 关 键 词： | 次氨基三乙酸钠 螯合 酸化 地层伤害 |
Study on Preparation and Application of NTS |
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| Wu Hongyi Wang Qiaosong Li Haiying. Study on Preparation and Application of NTS[J]. Applied chemical industry, 1998, 0(4) |
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| Authors: | Wu Hongyi Wang Qiaosong Li Haiying |
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| Abstract: | A chelating agent,nitrilotriacetic acid sodium(NTS),was prepared from ClCH 2COOH,NH 4Cl and NaOH.The influences of reaction temperature and pH value of solution on the yield were investigated.The yield is over 75% under the optimum synthesis conditions(ClCH 2COOH∶NH 4Cl=3∶1.02(mol),pH=1.0,70℃,2 h).The chelating agent can be used in conventional acid treatment to prevent the formation of Fe(OH) 3,and the experimental results showed that it was a good ferric ions stabilizer. |
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| Keywords: | nitrilotriacetic acid sodium chelate acidation formation damage |
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