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- Phase changes at different temperatures and holding time during the carbothermal reduction nitridation process for synthesizing SiAlON from low grade bauxite were researched by XRD,SEM and EDS. 采用XRD、SEM和EDS等手段 ,研究了低品位铝土矿碳热还原氮化合成SiAlON过程的相变。 结果表明 :130 0℃开始氮化 ,形成Si2 N2 O和X SiAlON ;
- The Resources Feature of Low Grade Bauxite Ore in Jiaozhuo and its Mineral Processing Feasibility 焦作市低品位铝土矿资源特征及选矿可行性
- Application of treating middle and low grade bauxite by Ore-dressing Bayer process in alumina production 应用选矿-拜耳法工艺处理一水硬铝石型中低品位铝土矿生产氧化铝的工业实践
- Keywords bauxite resource;diasporic bauxite;middle and low grade bauxite;alumina production;bayer process;combination process;energy consumption; 铝土矿资源;一水硬铝石;中低品位矿;氧化铝生产;拜耳法;联合法;能耗;
- A low number; a low grade of oil. 一个小的数; 低级油
- Low grade bauxite 低品位铝土矿
- John is down on his teacher because she gave him a low grade. 约翰恨他的导师，因为她给他打了低分。
- My son mucked up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- Low grades are get ting Helen down. 考分很低使海纶闷闷不乐。
- He is a bit let down by the low grade he got. 这次成绩不好, 他有点气馁。
- The barium aluminate’s combinative ways and combinative mechanism with high grade bauxite instead of aluminium hydroxide is investigated. 主要研究了用高品位铝土矿代替氢氧化铝合成铝酸钡的制备方法及合成机理。
- My son muck up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
- The teacher remonstrated with the boy about his low grade. 教师告诫男孩,说他的分数太低了。
- The teacher remonstrated with the boy about his low grades. 教师告诫男孩，说他的分数太低了。
- My son muck up the car engine by using cheap,low grade gasoline. 我的儿子使用便宜的低级汽油，这把汽车引擎损坏了。
- A plastic refractory with good plasticity and hot_ temperature can be produced by using special grade bauxite as main material and adding proper quantities of compose fine powedr, expanding agents, and additives. 以特级高铝矾土为主要原料,加入适量复合微粉、胀剂、湿剂,采用复合结合剂,能够生产出可塑性能优良、温强度高的可塑料。
- Low quality is always a problem; low grade may not be. 质量低常成为一个问题，但等级低则不是。
- Besides Al and Ga,the elements can be used also include REE,Nb,Li,Rb and V.The key scientific research item of Dressing/Bayer process of the state Ninth Five-year Plan resolves the problem of producing alumina by Bayer process with medium grade bauxite. 可利用元素 ,除已知的Al(氧化铝 )和Ga外 ,还有REE(稀土 )、Nb、Sc、Li,以及Rb和V。 国家“九五”重点科技攻关项目选矿 -拜耳法解决了利用中等品位铝矿石的拜耳法生产氧化铝问题。
- Untreated low grade rejection also poses an increased risk for CAV. 为CAV未处理的低等级拒绝也形成增加的风险.
