查询词典 aluminate

The method of the invention adopts calcium aluminate as carrier without adding other adhesives, which further improves the activity component and the deoxidation capacity of the deoxidizer.

本发明以铝酸钙为载体不添加其他粘合剂，进一步提高脱氧剂活性组分的含量和脱氧容量。

If using modified polyacrylamide as the precipitation accelerator to flocculate the polyaluminum chloride after the pre-sedimentation,it can accelerate the deposit of calcium aluminate.After deposit for 1 h,the separation effect was good.

采用改性聚丙烯酰胺作为促沉剂，对预沉后聚氯化铝溶液进行絮凝，加速铝酸钙的沉降，沉降1 h后达到了良好的分离效果。

Much work has been done for the decomposition mechanism of sodium aluminate, coming to the general conclusion that the growth rate of gibbsite crystals during the decomposition is too small to gain coarse g...

众多研究者对铝酸钠溶液分解机理进行了大量细致入微的工作，得到了一些普适性的结论，种分过程晶体生长速率很小，不能依靠长大过程得到砂状氢氧化铝。

The change rules of precipitation ratio, microstructure and particle size and the effect of oleic acid on the seed precipitation of sodium aluminate solution were investigated. According to these experimental results, the total energy and electronic structure of oleic acid locating on gibbsite (001) and face (100) with different modes were calculated, and the equilibrium and growth morphology of the systems were analyzed.

研究添加油酸杂质时，铝酸钠溶液分解过程中分解率、氢氧化铝产品的形貌和粒度的分布变化规律；计算以各种不同方式位于氢氧化铝的(001)和(100)面时油酸分子的总能量和电子结构，并分析各体系的平衡形态及生长习性。

Firstly, the important faces of the process of precipitation of sodium aluminate were calculated preparatory using Bravais-Friedel Donnay Harker method. Secondly, the equilibrium morphology calculations were processed on gibbsite 3×4×2 super cell and its (001),(100),(010),(011),(110),(101) and (112) slab models.

首先，用BFDH法说明了生长过程中最重要的面；其次，采用晶体平衡形态法，用Morphology程序对氢氧化铝3×4×2超晶胞及其(001)，(100)，(010)，(011)，(110)，(101)和(112)面真空slab模型进行平衡形态计算，计算结果与实验结果吻合，很好地预测了各显露面族(001)，(100)，(010)，(011)，(110)，(101)和(112)面族。

School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China）Abstract: The change rules of precipitation ratio, microstructure and particle size and the effect of oleic acid on the seed precipitation of sodium aluminate solution were investigated. According to these experimental results, the total energy and electronic structure of oleic acid locating on gibbsite (001) and face (100) with different modes were calculated, and the equilibrium and growth morphology of the systems were analyzed.

摘 要：研究添加油酸杂质时，铝酸钠溶液分解过程中分解率、氢氧化铝产品的形貌和粒度的分布变化规律；计算以各种不同方式位于氢氧化铝的(001)和(100)面时油酸分子的总能量和电子结构，并分析各体系的平衡形态及生长习性。

Experimental results indicate that glutamic acid can increase the decomposition ratio of sodium aluminate at lower concentration. The particle size of gibbsite product is reduced when the additive concentration is 3×103 mol/Lat 2 h. The particle size is enlarged under other conditions.

结果表明：谷氨酸在一定浓度范围内能提高铝酸钠溶液分解率，低浓度时添加效果最佳；添加浓度为3×103 mol/L，反应进行到2 h时产品粒度得到细化，其它条件下产品粒度均得到粗化。

The main content of this paper as follows: The acidic strength, reaction temperature, reaction time of Chlorine-aluminate Ionic Liquids with different structure of cation on the activity of transalkylation of MN with TeMB and the selectivity of 2,6-DMN were studied. The optimum reaction condition was obtained: the molar fraction of AlCl_3 is 0.71, molar ratio of 2-MN and TeMB is 1, the amount of ionic liquid is 32wt%, reaction temperature is 20℃and reaction time is 8h using X-xAlCl_3 and X-xAlCl_3 as catalysts; the optimum reaction time is shortened 6h using Et_3NHCl-xAlCl_3 as catalyst.

本文主要研究了以下内容：分别考察了不同阳离子结构的氯铝酸盐类离子液体的酸强度、反应温度、反应时间等因素对MN和TeMB转移烷基化的催化反应活性和2，6-DMN选择性的影响，优化得到适宜的反应条件为：以X-xAlCl_3和X-xAlCl_3为催化剂时，AlCl_3的摩尔分数x=0.71，2-MN和TeMB摩尔比为1∶1，离子液体用量为32wt％，反应温度为20℃，反应时间为8h；以Et_3NHCl-xAlCl_3为催化剂时，反应时间缩短到6h。

It was found that moisture in the system of reaction is main reason that lead to deactivation of ionic liquids. The reaction mechanism of transalkylation reaction of methylnaphthalene and 1,2,4,5-tetramethylbenzene catalyzed by chlorine-aluminate ionic liquids has been proposed.

考察了离子液体的循环使用情况，分析确定了离子液体的失活原因，认为反应体系中的微量水使离子液体水解是造成离子液体失活的主要原因。

Mineralizer such as TiO2,Cr2O3 and ZrO2 with proper amount, have a beneficial effect on the formation of magnesium aluminate spinel solid solution and the densification of samples, and decrease of porosity.

外加适量的TiO2、Cr2O3、ZrO2矿化剂能促进镁铝尖晶石烧结和晶粒生长，提高试样的体积密度和抗折强度，降低显气孔率。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48