1) two-steps acetone precipition
丙酮二次沉淀
2) acetone precipitation
丙酮沉淀
1.
Feasibility and technology of recovering β-glucosidase from cellobiose hydrolysate by methods of ultrafiltration and acetone precipitation were studied respectively.
利用丙酮沉淀回收时,丙酮与纤维二糖水解液的体积比值在0。
3) secondary precipitation
二次沉淀
1.
Test on the application of enzyme preparation in the elimination of secondary precipitation of soy sauce
酶制剂在消除酿造酱油二次沉淀的应用试验
2.
When acidizing treatment gypsum-containing formation,the secondary precipitation be produced.
由于石膏在酸液中的溶解度随酸液浓度而改变 ,酸化含石膏地层时将产生二次沉淀 ,严重影响酸化效果。
3.
In sandstone reservoir acidizing,there are problems of conventional mud acid system that it reacts with minerals too quickly,secondary precipitation happens easily and the effective distance of acid liquid is short.
砂岩储层酸化的常规土酸体系存在与矿物反应速度快、酸化液的有效距离短和容易产生二次沉淀等问题。
4) acetone precipitation
丙酮沉淀法
1.
Myrosinase from different sources (cabbage, radish, horseradish roots) was extracted by the method of acetone precipitation.
通过丙酮沉淀法对甘蓝、萝卜和辣根中的黑芥子酶(Myrosinase)进行了提纯与活力比较研究。
2.
The βmannanase from Bacillus subtilis K3-14 was purified by (NH4)2SO4 precipitation,Acetone precipitation and PEG precipitation respectively.
分别采用硫酸铵盐析法，丙酮沉淀法，聚乙二醇沉淀法对枯草芽孢杆菌（Ｂａｃｉｌｕｓｓｕｂｔｉｌｉｓ）Ｋ３－１４菌株发酵产生的β－甘露聚糖酶（β－ｍａｎｎａｎａｓｅ）进行提纯。
5) two-step deposition
二次沉淀法
1.
The result indicates that the two-step deposition method makes the effective separation of iron and aluminum reality,and gets conditions for making glass-ceramics with virtue of simple-technics and well-maneuverability.
研究结果表明:二次沉淀法有效地实现了铁、铝分离,为微晶玻璃的制备创造了条件,且工艺简单,控制点少,可操作性强。
6) secondary settler
二次沉淀池
1.
The key of calculating secondary settlers of an activated sludge system is to determine setting velocity of activated sludge.
活性污泥系统中二次沉淀池的计算关键是确定活性污泥沉淀速度，本文对现有的计算活性污泥沉淀速度模型进行了分析和比较；论述了ＣＨＯ等人提出的ｕ＝ｋｅｘｐ（－ｎＣ）Ｃ模型具有适用范围广，与实验数据十分吻合，用极限通量理论计算较方便等优点，是目前比较合理的计算公式，文章将ＣＨＯ模型用于极限通量理论中，导出了二次沉淀池的有关计算公式。
补充资料：二次沉淀
分子式：
CAS号：
性质： 酸化地层后排出的乏酸，因酸度降低，铁、硅等化合物以沉淀析出，称为二次沉淀。
CAS号：
性质： 酸化地层后排出的乏酸，因酸度降低，铁、硅等化合物以沉淀析出，称为二次沉淀。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条