| 查看: 2233 | 回复: 12 | |||
| 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 | |||
[交流]
求高手帮忙改一下英文摘要
|
|||
|
本人毕业在即,由于英语实在是太差了,求高手帮忙改一下英文摘要 跪求各位了 https://d.namipan.com/d/0654ff45 ... 8fa4845a5f3e03d0000 具体内容: 脱硫灰是燃煤和冶金行业烟气脱硫的副产物,任意堆放脱硫灰不仅占用大量土地,还会对环境造成严重的二次污染,而且给生产企业带来很大的经济负担;现代锅炉燃烧均采用磨细的煤粉为燃料,巨大的粉煤灰排放量占用大量耕地,污染环境,危害人们的生存环境,制约国民经济的可持续发展。我国硫资源短缺、铝土矿资源有限,本研究利用脱硫灰和粉煤灰制取硫酸和提取氧化铝,不仅改善了人们的生活环境,而且能回收有用资源,满足工业化需求,缓解资源短缺的现状,达到变废为宝的目的。 本研究的主要内容包括:(1)利用XRD、DSC、SEM、EDS等方法研究脱硫灰的物化特性、矿物组成以及微观形貌;(2)分析脱硫灰制硫酸-粉煤灰提取氧化铝过程的反应热力学,判断化学反应进行的可能性、先后顺序,反应的平衡条件及最终反应产物;(3)探讨焦炭掺量、粉煤灰掺量、煅烧温度等对CaSO4的分解和铝的浸提的影响;(4)确定最佳反应条件。 通过研究可以得出:(1)脱硫灰的主要化学成分是CaSO3、CaSO4、Ca(OH)2和CaCO3,并含有一定量的SiO2和Al2O3等,其主要矿物相为半水亚硫酸钙、二水石膏、方解石、羟钙石,以及少量氯化钙,脱硫灰的颗粒形状不规则,呈碎屑状,粒度变化差异较大;(2)本研究的反应体系复杂,主反应在800°C时开始发生,当达到900°C以上时,随着温度的增加,该反应相对其他副反应更容易发生;(3)还原剂焦炭的加入可以明显促进CaSO4的分解,但其掺入量并不是越多越好,而是有一个临界值,高于此临界值会抑制CaSO4的分解,粉煤灰中的Al2O3和SiO2会与CaSO4分解产生的CaO发生复杂的化学反应,在生成C12A7的同时生成多种含硫副产物,影响CaSO4的分解,粉煤灰掺量高时会降低铝的浸提率,温度越高越有利于CaSO4的分解和铝的浸提,研究中影响因素的顺序为温度>粉煤灰掺量>焦炭掺量;(4)在协调CaSO4的分解率和铝的浸提率之间平衡的情况下最佳实验条件为1200°C,C/DF1=0.085,Ash/DF1=0.294。 研究表明,采用脱硫灰制取硫酸-粉煤灰提取氧化铝可以达到较高的CaSO4分解率和铝的浸提率,此方法处理脱硫灰和粉煤灰具有广阔的应用前景。 好心人可以直接联系我 QQ:27988143 [ Last edited by muyaqin on 2010-11-15 at 09:56 ] |
» 猜你喜欢
免疫学博士有名额,速联系
已经有13人回复
退学或坚持读
已经有17人回复
面上基金申报没有其他的参与者成吗
已经有4人回复
国家基金申请书模板内插入图片不可调整大小?
已经有8人回复
多组分精馏求助
已经有6人回复
国家级人才课题组招收2026年入学博士
已经有6人回复
» 抢金币啦!回帖就可以得到:
多功能 电子微生物生长分析仪 及 微生物快检技术开发服务
+2/178
结构动力学与结构健康监测方向欧盟玛丽居里全奖博士招聘
+1/84
天津科技大学邓启良教授团队 招收2026年博士生
+1/81
丙烯液相
+1/79
诚聘 有机光电材料计算方向 博士后、科研助理、访问学生
+1/75
【2026/2027 哈工大计算机类博士/硕士招生】
+1/74
香港科技大学计算物理及流体力学课题组招收全奖博士后及博士生(2026年9月入学)
+1/46
香港科技大学计算物理及流体力学课题组招收全奖博士后及博士生(2026年9月入学)
+1/43
教育部重点实验室和清华大学某国家重点实验室,联合培养硕生、博生,并长期招博士后
+1/30
上海市“光探测材料与器件”工程技术研究中心(上海应用技术大学)招聘优秀研究人员
+1/28
教育部重点实验室和清华大学某国家重点实验室,联合培养硕生、博生,并长期招博士后
+1/27
武汉工程大学绿碳技术与智能材料课题组诚招2026年博士研究生
+2/26
【博士招生】哈工大(深圳)智能学部机器人与先进制造学院 陆文杰老师课题组
+1/10
四川大学华西医院沈百荣教授课题组科研助理招聘启事
+1/9
中山大学柔性电子学院黄维院士团队诚招博士后(柔性可穿戴电子或相关方向)
+1/9
邵阳学院食品与化学工程学院硕士调剂
+1/6
诚征女友,非诚勿扰
+3/2
华南理工大学宋波教授招聘材料和化学方向博士后(长期有效)
+1/2
海南大学国家优青团队招聘“AI/大数据+材料”方向师资博后
+1/2
澳科大诚招2026年秋季生物材料全奖博士研究生(今日16:30线上宣讲会)
+1/1
前两段
muyaqin(金币+5, 翻译EPI+1): 2010-11-15 16:47:15
|
Desulfurization ash is by-products produced by flue gas desulfurization in coal-firing and metallurgical industries.Arbitrarily stacked desulfurization ash can occupy much of the land , cause serious secondary pollution, and bring great economic burden for companies.By adopting grinding thin coal as fuel ,modern boilers produce huge fly ash emissions,which not only greatly endanger our living environment but also enormously constrain the Sustainable development of national economy.Considering our country is in short of sulphur and bauxite resources,in this paper desulphurization ash and fly ash are used to produce Sulfuric acid and alumina,which not only improved the people's living environment, but also recycle useful resource to satisfy industrialization demand, alleviate resource shortage, and reach reutilization purpose. This paper is focused on 1) Physical and chemical characteristics,mineral composition and microstructure of the desulfurization ash were studied with methods of XRD、DSC、SEM、EDS etc. (2) The process of producing sulfuric acid and alumina from desulfurization ash and fly ash respectively is studied on the basis of thermodynamics analysis, and the possibility,order,equilibrium condition and final products of the chemical reactions were all studied in this paper.(3) In addition to the mixing amounts of coke and fly ash ,the calcination temperature on the ecomposition of CaSO4 and the leaching of aluminium is also investigated in this paper.(4) The optimum reaction conditions were determined in the end. |
8楼2010-11-15 16:11:10
2楼2010-11-15 11:00:39
|
脱硫灰是燃煤和冶金行业烟气脱硫的副产物,任意堆放脱硫灰不仅占用大量土地,还会对环境造成严重的二次污染,而且给生产企业带来很大的经济负担;现代锅炉燃烧均采用磨细的煤粉为燃料,巨大的粉煤灰排放量占用大量耕地,污染环境,危害人们的生存环境,制约国民经济的可持续发展。我国硫资源短缺、铝土矿资源有限,本研究利用脱硫灰和粉煤灰制取硫酸和提取氧化铝,不仅改善了人们的生活环境,而且能回收有用资源,满足工业化需求,缓解资源短缺的现状,达到变废为宝的目的。 Desulfurization ash is by-products produced by flue gas desulfurization in coal-firing and metallurgical industries.Arbitrarily stacked desulfurization ash can occupy much of the land , cause serious secondary pollution, and bring great economic burden for companies.By adopting grinding thin coal as fuel ,modern boilers produce huge fly ash emissions,which not only cause greatly endanger our living environment but also enormously constrain the Sustainable development of national economy.Considering our country is in short of sulphur and bauxite resources,in this paper desulphurization ash and fly ash are used to produce Sulfuric acid and alumina,which not only improved the people's living environment, but also recycle useful resource to satisfy industrialization demand, alleviate resource shortage, and reach reutilization purpose. 先给你翻译一段看看吧,如果还可以的话再翻译其他的. |
3楼2010-11-15 13:19:53
4楼2010-11-15 13:23:13













回复此楼
1) Physical and chemical characteristics,mineral composition and microstructure of the desulfurization ash were studied with methods of XRD、DSC、SEM、EDS etc. (2) The process of producing sulfuric acid and alumina from desulfurization ash and fly ash respectively is studied on the basis of thermodynamics analysis, and the possibility,order,equilibrium condition and final products of the chemical reactions were all studied in this paper.(3) In addition to the mixing amounts of coke and fly ash ,the calcination temperature on the ecomposition of CaSO4 and the leaching of aluminium is also investigated in this paper.(4) The optimum reaction conditions were determined in the end.