Scab formed in the preheating process of high pressure digestion is very harmful for alumina production in Bayer process.
拜耳法高压溶出过程形成的结疤 ,对氧化铝生产是十分有害的 ,开展对其结疤性质的研究 ,对于探索结疤形成的机理及结疤的防治 ,提供了理论和实践依据 ,具有十分重要的意义。
The process of Bayer high pressure digestion, the physical meaning of realizing RP control block diagram by computer internal module and the mathematical model in RP control are briefly introduced.
简单介绍了拜尔法高压溶出工艺流程、用计算机内部模块实现RP[1]控制框图的物理意义及RP控制中的数学模型。
With kaolinite and pyrophyllite as material,influence of temperature,duration,concentration of caustic soda,addition amount of CaO on reaction behavior of silicon-containing minerals in high-pressure digestion was studied.
选取高岭石和叶腊石作为实验原料,研究了高压溶出过程中温度、时间、苛性碱浓度以及CaO添加量对硅矿物反应行为的影响。
Based on research of thermodynamic analysis of titanium-containing minerals,reaction mechanism of titanium-containing minerals in high-pressure digestion process wa
论文主要研究内容和结论如下:1)采用多种含钛化合物为原料,研究其在不同溶液体系和温度下的反应行为,并结合热力学分析,明确了钛矿物在高压溶出过程中的反应机理:钛矿物首先是与铝酸钠溶液中的游离苛性碱反应生成Na_2O·3TiO_2;Na_2O·3TiO_2与铝酸钠、氢氧化钙反应生成羟基钛酸钙;随着温度的升高,氢氧化钙添加量增加,羟基钛酸钙会与铝酸钠和Ca(OH)_2反应转化成更加稳定的钛酸钙,同时Na_2O·3TiO_2也会与氢氧化钙直接作用生成钛酸钙。
Improvement measures of exhaust gas from digesting diluted tank;
高压溶出稀释槽乏气利用的改进措施
digesting disisliconizer and evaporater .
文章对我国氧化铝生产工艺消耗蒸汽的高压溶出、脱硅机、蒸发器三种主要设备技术水平进行了评价,提出了进一步降低汽耗、节能增效的改进方向。
As an important working procedure of alumina manufacturing process with Bayer method, high pressure digestion (HPD) is a very complicated metallurgical process.
作为拜耳法生产氧化铝过程中的重要工序,高压溶出是一个极其复杂的冶金工业过程。
Fast dissolution of dissoluble calcium from bovine bone treated by high intensity pulsed electric fields
用高电压脉冲电场促进牛骨可溶性钙快速溶出
At high pressure dry ice will melt.
高压下干冰会溶化。
Study on the Distribution Rule of Water Pressure upon Lining in Subject to High Hydraulic Pressure Mountain Tunnel
高水压岩溶隧道衬砌水压力特征研究
Studies on the Mutual Solubilities of Organics--Water under High Temperature and High Pressure;
高温高压下有机物与水的互溶度研究
The digestion test by the Bayer process shows that the desilication ratio of aluminium concentrate obtained by roasting desilication is higher than the one of run of mine ore.
高压拜耳法溶出试验表明 :经过焙烧脱硅得到的铝精矿的脱硅率比原矿高。
maximum output pressure(absolute)
(绝) 最高排出压力
The Clinical Study on Hypertensive Cerebral Hemorrhage Patients with Moderate and Severe Treated by Simply Directional Craniopuncture and Dissolution of Urokinase;
简易定向锥颅碎吸术及尿激酶溶解引流治疗中重度高血压脑出血临床研究
The study of control techniques on karst water in High-pressure in Feicheng Mining
肥城矿区高承压岩溶水防治技术研究
ANTIMICROBIAL ACTION BY COMBINING ULTRA-HIGH PRESSURE TREATMENT WITH LYSOZYME
超高压与溶菌酶联合的抑菌效果研究
Measurement and Calculation on Methane Solubility at Normal and High Pressures
甲烷在常压和高压下溶解度的测定与计算
Increasing Dissolution Rate of Wild Jujube Juice by New Technology with Cellulase
酶工艺提高酸枣汁可溶性固形物溶出率的研究
Thermodynamic Study on High-temperature and -Pressure Aqueous Solution Based on Molecular Simulation;
基于分子模拟的高温高压水溶液热力学研究
A New Activity Coefficient Model for Aqueous Alkali-Earth Metal Solution at High Temperature and Pressure;
高温高压碱土金属溶液活度系数新模型的研究
An Experimental Study of Limestone Dissolution at High Temperature and High Pressure in Liquid-Flow Reaction Set;
高温高压流动条件下灰岩溶解实验研究
Synthesis and HPHT Study for the Water Soluble Fullerenes Nano-particles;
水溶性富勒烯纳米颗粒的制备及高温高压研究
The Study on Methane Solubility in Methanol and Hydrocarbon Mixing Solvents at High Pressures;
甲烷在甲醇和烃类混合溶剂中高压溶解度的研究
Measurement and Calculation on Methane Solubility in Diesel Oil Mixing Solvents at High Pressures;
高压下甲烷在柴油类混合溶剂中的溶解度测定与计算