24小时热门版块排行榜

返回列表

当前主题已经存档。

【有奖交流】积极回复本帖子，参与交流，就有机会分得作者 ZHL0627 的 47 个金币，回帖就立即获得 1 个金币，每人有 1 次机会

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

ZHL0627

铁虫 (小有名气)

应助: 0 (幼儿园)
金币: 708.8
散金: 8
红花: 1
帖子: 73
在线: 31.4小时
虫号: 656531
注册: 2008-11-17
性别: GG
专业: 无机合成和制备化学

[交流] 求助：请帮忙修改英语已有14人参与

With exploitation of phosphorus ore, the high-grade phosphorus ore is becoming less and less in the present resource. The utilization of poor phosphorus rocck and the purity of crude phosphoric acid have turned into issues urgently asked for resolving [2]. At the present time, phosphoric acid has two kinds of manufacturing manners of thermal process and wet process. In the thermal process, phosphorus is first produced by reduction of phosphate rock, followed by oxidation and hydration to give phosphoric acid. And in the wet process, acidolysis of phosphate rock and purification of crude phosphoric acid are included. Due to the presence of impurities in the raw material the produced phosphoric acid inevitably contains many chemical species, such as iron, aluminum, magnesium and fluorine etc., which seriously affect the quality of the product and limit its application.

[ Last edited by ZHL0627 on 2010-4-10 at 21:11 ]

回复此楼

» 猜你喜欢

各位大神，目前国内有哪些比较好用的逆合成软件？已经有14人回复
国社科系统bug了，是不是要放榜了？已经有10人回复
现代”学阀”该如何界定已经有9人回复
课题组招2027级博士上海工程技术大学激光智能制造方向已经有4人回复
上海工程技术大学激光智能制造课题组 2027级博士研究生招生已经有3人回复
上海工程技术大学激光智能制造课题组｜2027级博士研究生招生公告已经有11人回复
申博发邮件已经有11人回复
我的奶奶已经有3人回复

无影无踪

1楼 2010-04-10 21:08:37

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

zhzimi_2007

木虫 (职业作家)

应助: 0 (幼儿园)
金币: 1759.3
散金: 50
帖子: 3631
在线: 703.6小时
虫号: 450803
注册: 2007-11-04
专业: 应用数学方法

建议楼主应该去翻译或者外语板块，那里可能比这里更好点

赞一下

回复此楼

12楼2010-04-15 10:51:38

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

查看全部 16 个回答

mzyr888

木虫 (著名写手)

应助: 17 (小学生)
金币: 7297.8
散金: 2910
红花: 13
帖子: 2602
在线: 1358.9小时
虫号: 516150
注册: 2008-03-02
性别: GG
专业: 无机纳米化学

★
ZHL0627(金币+1):谢谢参与
ZHL0627(金币+10): 2010-04-17 11:00

With the development of phosphorus ore, the high-quality phosphorus ore is becoming less and less in the present resource. The utilization of poor phosphorus rocck and the purity of crude phosphoric acid have turned into issues urgently asked for resolving [2]. up to now, It is reported that phosphoric acid has two kinds of manufacturing manners of thermal process and wet process. In the thermal process, phosphorus is first synthesized by reduction of phosphate rock, followed by oxidation and hydration to give phosphoric acid. And in the wet process, crude phosphoric acid is subjected to acidolysis and purificate . unfortunately, Due to the presence of impurities in the raw material ,the produced phosphoric acid inevitably contains many chemical species, such as iron, aluminum, magnesium and fluorine etc., which seriously affect the quality of the product and limit its applications.多多指教！

赞一下(1人)

回复此楼

严谨治学,问鼎天下.

3楼2010-04-11 20:42:13

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖