查询词典 optimum conditions

Through lots of tests, the new technology of preparing the polymeric ferric aluminum silicate sulfate by using the waste-acid of Ti02-industriy and the coal fly ash has been designed. The highest Al-acid stripping rate can be achieved by the waste sulfate acid under boiling degree for 1. 5h when the mass ratio between NaCl and Coal Fly ash is 0. 05:1, as well as that between Coal Fly ash and Waste Acid ratio is 1:10. By means of the oxidation-polymerized reaction under 40-50*C and normal pressure, using NaNCkas catalyst and air as oxidation, the polymeric ferric aluminum sulfate can be obtained. The poly-silicic acid is polymerized with soluble glass in the optimum conditions of pH=5-6 and the concentration of Si02 is about 3%. The inorganic high molecule coagulant of PFASS is synthesized with the poly-silicic acid into the solution of polymeric ferric aluminum sulfate.

本论文通过大量的试验，研究开发出了用粉煤灰及钛白废酸制取聚合硫酸硅酸铁铝的新工艺，其最佳工艺条件为：于沸点温度，以NaCl为助溶剂(NaCl与粉煤灰质量比为0.05：1)，以钛白废酸浸取粉煤灰(固液比为1：10)中的铝1.5小时，最大浸取率可达40％；经过滤洗涤后，调节滤液pH至2.0左右，以NANO_2为催化剂(NaNO_2用量为滤液中FeSO_4·7H_2O量的3％)，空气为氧化剂，于40-50℃进行常压催化氧化反应，制取聚合硫酸铁铝，催化氧化时间为2小时；将工业水玻璃稀释至3％左右，调节其pH于5-6，室温下制备活性聚硅酸；将活性聚硅酸与聚合硫酸铁铝按照一定比例复合，经熟化，即制得新型无机高分子混凝剂PFASS。

The products prepared at the optimum conditions have the 7~8nm of grain size and sphericity mono-morphology.

在上述最佳条件下制得的球形纳米Co_3O_4粉体，粒径在7～8nm左右。

Methods After digesting samples with microwave, Arsenic and Stannum were determined under optimum conditions of instruments.

微波消解消化样品，优化实验并选择仪器的最佳测定条件，同时测定砷和锡。

The optimum conditions of spectrophotometric detemination of tannic acid in beer has been studied.

单宁具有涩味，啤酒中单宁含量直接影响饮用的口感[1，2]。

Considering GABA content and quality components of tea leaf, the optimum conditions ofanaerobic treatment on fresh...

综合γ-氨基丁酸含量和各项茶叶品质成分指标，确定茶鲜叶厌氧处理的最佳条件为：真空、25℃、8h。

The optimum conditions such as acidity, reaction temperature, dosage of thoron Ⅱ solution and reaction time for the system were studied in detail.

详细考察了反应酸度、温度、钍试剂Ⅱ浓度及反应时间等对铬测定的影响。

The optimum conditions were obtained: reaction time 10 h, amount of catalyst for the quality of glycerin 5%, molar ratio of glycerin to acetic acid 1:8, under which the yield of glycerol triacetate reached 93.8%.

实验结果表明，反应时间10h，催化剂用量为甘油的5%，甘油／乙酸=1：8的条件下，三醋酸甘油酯的收率达93.8%。100~130℃时，反应活化能为113.245kJ/mol。

The optimum conditions and the influence factors were investigated, and the composition of ion-association complexes and the reaction mechanism were also discussed. The effects of foreign substances were tested and it is shown that the method has a good selectivity. Based on HgCl2 and basic triphenylmethane dye, the sensitive, simple and rapid method for the determination of trace CTRX was developed.

研究了适宜的反应条件和影响因素，对离子缔合物的组成和离子缔合反应机理进行了探讨，考察了共存物质的影响，表明方法有良好的选择性，据此发展了用HgCl2和碱性三苯甲烷类染料的灵敏、简便、快速测定痕量头孢噻肟钠的新方法。

For the first time, oil of vitriol is used to sulfonate OP, and the optimum conditions of sulfonating reaction are ascertained.

本文采用浓硫酸对乳化剂OP-10进行硫酸化改性，确定了硫酸化工艺的最佳条件。

The degradation law of the coal sulfur under these optimum conditions was also worked out. The results show that coal desulfurization by white rot fungus is feasib...

实验结果表明，白腐菌煤炭脱硫是完全可行的，而且白腐菌脱硫速度较快，2d内可脱除煤中无机硫的5530％、全硫的4454％。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。