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zhouli5212

铜虫 (小有名气)

[交流] 请帮忙修改一下英语

In the phosphoric acid prepared by wet process using hydrochloric acid, ferric ions exist mainly in the form of ions [FeH2PO4(H2O)5]2+, [Fe(H2PO4)2(H2O)4]+, [FeHPO4(H2O)5]+ and [FeCl4(H2O)2]− . The structures of these species are complicated and charged. Some works on iron removal from wet-process phosphoric acid have been carried out by solvent precipitation , adsorbent adsorption , ion exchange , solvent extraction ， and so on. However, solvent precipitation which adopts water-soluble solvent of organic alcohol asks phosphoric acid treated at high P2O5 content. What’s more, the use level of solvent is large, and the further separation from phosphoric acid needs distilling. Solvent extraction is a significant method of removing metal ions. Swaminathan et al. studied the kinetics of iron(III) extraction by bis(2-ethylhexyl) phosphate in kerosene from sulfuric acid solutions. Matsuyama et al. investigated the reaction mechanism between iron(III) and trioctylphosphine oxide in a homogeneous system. Large amounts of by-product hydrochloric acid existing in industries can be used for leaching phosphorus ore. But few relevant works of removing Fe(III) in the phosphoric acid prepared by hydrochloric acid process have been reported in the literature up to now.
This research focuses mainly on the separation of Fe(III) from WPA by solvent extraction, using tributyl phosphate (TBP) as the extractant. The effect of several parameters on Fe(Ⅲ) have been investigated and optimized. The synergistic action of chloride ions, the composition of extracted species, the conditions of extraction reaction and so on were researched in detail. There are important directive significance for the exploitation of low-grade resource of phosphate ore and the industrial practice of phosphoric acid extracted by hydrochloric acid process.
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1楼 2010-04-12 21:19:36
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hecuihuapeng

铁杆木虫 (著名写手)
The effect of several parameters on Fe(Ⅲ) have been investigated and optimized.  HAVE 改为HAS
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岁月安好现世安稳
2楼2010-04-12 21:42:27
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lidanye

金虫 (小有名气)
zhouli5212(金币+10):谢谢 2010-04-13 19:19
zhouli5212(金币+10):谢谢 2010-04-13 19:19
从第三句开始
Studies involving various procedures have been done with iron removal from wet-process phosphoric acid, such as solvent precipitation , adsorbent adsorption , ion exchange and solvent extraction. However, the widely-applied solvent precipitation procedure adopts water-soluble organic alcohol solvents and requires phosphoric acid to be treated at a high P2O5 concentration. Moreover, the solvent consumption is large, and distillation is required for its later separation from phosphoric acid.
Solvent extraction, in contrast, is a brilliant method for the removal of metal ions. Swaminathan et al. have studied the kinetics of iron(III) extraction from sulfuric acid solutions using bis(2-ethylhexyl) phosphate in kerosene. Matsuyama et al. have investigated the interaction between iron(III) and trioctylphosphine oxide in a homogeneous system. Large amounts of the by-product hydrochloric acid are formed in industry and can be used for leaching phosphorus ore. However, so far only few relevant studies on removing Fe(III) from phosphoric acid prepared by the hydrochloric acid process have been reported.
第二段中建议把第三句里的and so on去掉。然后最后一句，the hydrochloric acid process.
希望能对你有所帮助：）
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3楼2010-04-12 21:53:55
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fatemyself

铜虫 (小有名气)
zhouli5212(金币+1, 翻译EPI+1):谢谢 2010-04-13 19:19
zhouli5212(金币+10):谢谢 2010-04-14 20:24
In the phosphoric acid prepared by wet process using hydrochloric acid, ferric ions exist mainly in the form of ions [FeH2PO4(H2O)5]2+, [Fe(H2PO4)2(H2O)4]+, [FeHPO4(H2O)5]+ and [FeCl4(H2O)2]− . The structure of these species is complicated and charged. Some works on iron removal from wet-process phosphoric acid have been carried out by solvent precipitation , adsorbent adsorption , ion exchange , solvent extraction ， and so on. However, solvent precipitation which adopts water-soluble solvent of organic alcohol asks phosphoric acid treated at high P2O5 content. What’s more, the using level of solvent is high, and the further separation from phosphoric acid needs distilling. Solvent extraction is a significant method of removing metal ions. Swaminathan et al. studied the kinetics of iron(III) extraction by bis(2-ethylhexyl) phosphate in kerosene from sulfuric acid solutions. Matsuyama et al. investigated the reaction mechanism between iron(III) and trioctylphosphine oxide in a homogeneous system. Large amounts of by-product hydrochloric acid existing in industries can be used for leaching phosphorus ore. But few relevant works of removing Fe(III) in the phosphoric acid prepared by hydrochloric acid process have been reported in the literature up to now.
This research focuses mainly on the separation of Fe(III) from WPA by solvent extraction, using tributyl phosphate (TBP) as the extractant. The effect of several parameters on Fe(Ⅲ) have been investigated and optimized. The synergistic action of chloride ions, the composition of extracted species, the conditions of extraction reaction and so on were researched in details. There are important directive significance for the exploitation of low-grade resource of phosphate ore and the industrial practice of phosphoric acid extracted by hydrochloric acid process.

如果以上只是用于非正式的演讲或者场合，那么还可以。如果需要发表或者做成一定的文档，那么你的句子结构需要正规表述。这是我们的潜规则。但是在国外发表的话，只要没有错误就可以。
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tobebetterandbetter
4楼2010-04-13 16:59:35
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crazyff12345

金虫 (正式写手)
zhouli5212(金币+10):谢谢 2010-04-14 20:01
In the wet process, it was acidified by using hydrochloric acid. Ferric ions exist mainly in the form of complex ions,i.e., [FeH2PO4(H2O)5]2+, [Fe(H2PO4)2(H2O)4]+, [FeHPO4(H2O)5]+ and [FeCl4(H2O)2]− . Obviously,the structures of these species are complicated and charged. Some previous literatures, based on the removal irons from wet-process for preparation of phosphoric acid, have been carried out by solvent precipitation , adsorption, ion exchange , solvent extraction, and so on. However, solvent precipitation which adopts water-soluble solvent of organic alcohol required treating phosphoric acid  at high P2O5 content. What’s more, the usage level of solvent is large, and the next separation step from phosphoric acid needs distilling. Accordingly, to overcome the promblem,the solvent extraction, thereupon, is applied widely as a significant method of removing metal ions. Swaminathan et al. studied the kinetics of iron(III) extraction by bis(2-ethylhexyl) phosphate in kerosene from sulfuric acid solutions. Whereas Matsuyama et al. investigated the reaction mechanism between iron(III) and trioctylphosphine oxide in a homogeneous system. As by-product, large amounts of hydrochloric acid obtained in industries can be used for leaching phosphorus ore. However, up to now, only a few relevant works on the study of removing Fe(III) by such hydrochloric acid  in the literature .
    This research mainly focuses  on the separation of Fe(III) from WPA using tributyl phosphate (TBP) by solvent extraction. Several parameters for  separation have been investigated and optimized. Furthmore, the synergistic action of chloride ions and the composition of extracted species were studied in detail. There are important directive significance for the exploitation of low-grade resource of phosphate ore and the industrial practice of phosphoric acid extracted by hydrochloric acid process.

[ Last edited by crazyff12345 on 2010-4-13 at 20:20 ]
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5楼2010-04-13 20:02:40
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crazyff12345

金虫 (正式写手)
我认为最后一句话还应该改改进。其中有些被我删掉了，是多余的
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6楼2010-04-13 20:22:19
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