| 查看: 917 | 回复: 2 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
| 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 | |||
gshg112709金虫 (小有名气)
|
[交流]
翻译求助
|
||
| 以固废磷化渣和NaOH为原料制得Na3PO4，采用化学沉淀法将Na3PO4溶液滴加到Ca(OH)2溶液中反应制备出羟基磷灰石，再将羟基磷灰石与硫酸反应制备磷酸。考察了温度、NaOH浓度制备Na3PO4时对磷化渣中磷酸根的提取率的影响，确定了最佳条件为：在110℃质量分数为30%NaOH溶液条件下磷酸根的提取率为91.45%。同时考察了温度、液固比、酸过量系数、时间等因数制备磷酸对羟基磷灰石中磷酸根的转化率的影响，确定最佳工艺参数。实验结果表明：在反应温度75+3℃，酸过量系数1.02，液固比为2.5:1，反应时间3h条件下，磷酸根的转化率可达96.69%。 |
回复此楼» 猜你喜欢
265求调剂
已经有9人回复
-
085600材料与化工调剂
已经有20人回复
-
专硕 351 086100 也是考的材科基 本科也是材料
已经有6人回复
-
085600专硕材料与化工348分求调剂
已经有10人回复
-
085600 295分求调剂
已经有21人回复
-
285求调剂
已经有5人回复
-
一志愿安徽大学0817化学工程与技术，求调剂
已经有9人回复
-
一志愿0817化学工程与技术，求调剂
已经有8人回复
-
271分求调剂学校
已经有3人回复
-
生物学308分求调剂（一志愿华东师大）
已经有7人回复
Meteor_Dzz
银虫 (小有名气)
- 翻译EPI: 8
- 应助: 0 (幼儿园)
- 金币: 376.5
- 帖子: 102
- 在线: 18.9小时
- 虫号: 1091780
- 注册: 2010-09-07
- 性别: GG
- 专业: 材料学
★ ★
wypward(金币+1):谢谢参与 2010-09-16 13:11:05
发芽土豆(金币-3):机器翻译 2010-09-18 14:16:29
wypward(金币+1):谢谢参与 2010-09-16 13:11:05
发芽土豆(金币-3):机器翻译 2010-09-18 14:16:29
| To solid waste phosphate sludge and NaOH as raw materials obtained Na3PO4, by chemical precipitation method Na3PO4 solution was dropwise added Ca (OH) 2 solution prepared in response to hydroxyapatite, and then prepared by the reaction of hydroxyapatite with phosphoric acid . The effects of temperature, NaOH concentration of phosphate when preparation Na3PO4 phosphate residue extraction rate, the optimum conditions: 110 ℃ in the mass fraction of 30% NaOH solution under the conditions of phosphate extraction was 91.45%. While of temperature, liquid ratio, acid excess factor, time factor in the preparation of phosphoric acid on phosphate hydroxyapatite conversion rate, to determine the optimum process parameters. The results showed that: the reaction temperature 75 +3 ℃, acid excess coefficient of 1.02, liquid to solid ratio of 2.5:1, anti- |
3楼2010-09-16 02:23:22
izhangxing
新虫 (正式写手)
- 翻译EPI: 14
- 应助: 3 (幼儿园)
- 金币: 21.5
- 散金: 388
- 红花: 4
- 帖子: 798
- 在线: 435.8小时
- 虫号: 963959
- 注册: 2010-03-07
- 性别: GG
- 专业: 电化学
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
wypward(金币+1):谢谢参与 2010-09-15 12:12:58
ringzhu(金币+10, 翻译EPI+1):辛苦 欢迎常来翻译版~~ 2010-11-22 13:05:24
wypward(金币+1):谢谢参与 2010-09-15 12:12:58
ringzhu(金币+10, 翻译EPI+1):辛苦 欢迎常来翻译版~~ 2010-11-22 13:05:24
| With the solid waste of phosphate slag and NaOH as raw material Na3PO4, by chemical precipitation method for spot Na3PO4 solution to the CaOH2 solution preparation of hydroxyapatite and preparation of hydroxyapatite and sulfuric acid reaction. Study on Temperature and NaOH concentration of preparation Na3PO4时 on the influence of phosphate residue of phosphate by extraction rate and determine the best condition is : In the second ℃ quality score of 110 NaOH solution under the condition of phosphate by Extraction Rate of 91.45. Study on the temperature at the same time, liquid and solid acid excess coefficient, time and other factors in the preparation of hydroxyapatite influence of phosphate conversion to determine the optimum technological parameters. Experimental results show that in reaction temperature of 75 - 3 ℃ acid excess coefficient of 1.02, liquid and solid than 2.5:1, reaction time 3h under the condition of phosphate conversion rate will reach 96.69. |
2楼2010-09-14 22:06:55
