- 更多网络例句与用硝酸处理了的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.
本发明通过采用硅铝比SiO2/Al2O3为20~1000重量百分比计20~100%的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型;再经过0.1~3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1~8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20~90℃下处理1~8小时;然后在温度为400~700℃条件下水蒸汽处理2~15小时;再用0.1~3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20~90℃条件下浸渍2~5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题,可用于甲醇转化制丙烯的工业生产中。
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The mixed solution of sodium nitrate and aluminium nitrate is added to thequartz raw materials, and then the mixture, is.
在石英玻璃原料中加入一定浓度的硝酸钠和硝酸铝混合溶液,进行高温处理,使石英中杂质转变成易溶于混合酸或水的物质,实现了杂质与石英基体的分离,从而达到用低纯度的石英原矿生产高纯度的石英玻璃原料的目的。
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Treatment of aquaculture wastewater by the biological film process;2. This research deals with the potential of nutrient removal from the aquaculture wastewater using a novel filter media vesuvianite and the macroalga Chondrus ocellatus.
用一种新型的火山石生物膜载体和大型海藻角叉菜Chondrus ocellatus处理牙鲆Paralichthys olivaceus 养殖废水,探讨了火山石生物膜载体和角叉菜对去除废水中总氨氮、硝酸态氮和磷酸盐的处理效果。