Study on solid acidic catalysts for liquid phase rearrangement of styrene oxide to phenylacetaldehyde 氧化苯乙烯液相重排制苯乙醛的固体酸催化剂
The Application of Acidic Slag Sulphonate in Oxide Ore Flotation 酸渣磺酸盐在氧化矿浮选中的应用
The adsorption and desorption of aluminum in two acidic soils was investigated. Under using technique of dithionite-citrate-bicarbonate ( DCB), the change situation of Al adsorption-desorption characteristics after removal of Fe oxide in soil was studied. 用连二亚硫酸钠-柠檬酸钠-碳酸氢钠(DCB)法研究了去除土壤中的氧化铁后Al的吸附-解吸特征的变化情况。
Conclusion On the existing condition of existing dedust equipment, the compound contamination in aerosol of metallurgical plant were multiple kinds of heavy metals, acidic oxide and tens of kinds of organic contaminations ( hydroxybenzene and PAHs), and their radius ≤ 1.1 μ m. 结论在现有除尘设备条件下的冶炼厂烟尘污染为多种重金属、酸性氧化物及几十种有机污染物(酚类及PAHs)的复合污染,它们的粒径分布大多≤11μm。
BACKGROUND: It is pointed in some experiment that acidic peptide improves learning and memory of model rat with Alzheimer disease ( AD) by inhibiting the synthesis of toxic compounds of nitric oxide ( NO). 背景:有实验指出酸性肽可能是通过抑制一氧化氮等毒性化合物的生成而提高阿尔茨海默病模型大鼠的学习记忆能力。
Study of Doped N_2 Thermal SiO_2 Processing formed is reacted with excess of iodide in an acidic medium to give free iodine ( I?) From Nitroglycerine to Nitrogen Oxide 掺氮热氧化硅工艺的研究
Our research results showed that such reaction might occur under conditions such as excessive amount of acid, the presence of acidic substances, over-heating, and also during the storage period of high-purity ethylene oxide. 发现在环氧乙烷合成过程中,酸过量和有酸性物质存在、碱性物质存在、过热以及高纯度环氧乙烷贮存期间均能发生聚台反应。
The effects of acidic oxides SiO2, alkali oxides MgO, neutral oxide Al2O3 as additives on the alkali metal emission were investigated. 考察了酸性氧化物Si02、碱性氧化物MgO、中性氧化物Al203作为添加剂对碱金属析出行为的影响。