查询词典 extractant

Work 工作:(1) feasible process development for high-pure tetraalkyphosphonium salt as catalysts for polymerizations, potential sale 2-4 million us$;(2) simple and feasible preparation process for phosphonium salt as ionic liquids, biocides and phase transfer catalysts;(3) new and industrially feasible processes for highly sterically hindered alkylphosphines as catalyst ligands, these include tricyclohexyl-phosphine, phosphorinanes and dsmphos2,3- bis(9-phosphabicyclononylbutane;(4) sterically hindered dialkylphosphinic acid as new generation of co/ni extractant;(5) alkylphosphonium wittig reagents and the wittig reactions with them;(6) exploration of the application of borane chemistry in the synthesis of highly sterocally hindered organophosphines;(7) customer preparation of samples of a variety of organophosphorus compounds for customers all over the world.

用作高分子聚合反应催化剂的高纯度四烷基瞵盐的实用生产流程。产品销售前景 2-4 百万美元；(2)用作离子化液体，杀菌剂和相转移催化剂的烷基瞵盐的简单实用合成方法；(3)高位阻烷基磷化氢催化剂配体的工业实用合成路线的研究，这包括，三环己烷基磷， phosphorinanes 和 dsmphos 2，3-bis(9-phosphabicyclononylbutane ；(4)高位阻二烷基膦酸金属萃取剂的工业实用合成路线的研究；(5)烷基膦 wittig 反应试剂的研究；(6)硼化学在高位阻烷基磷化氢合成中的应用；(7)为世界各地提供顾客合成服务。

The effects of four different solutions (methanol, ethanol, chloroform, and tetrachloromethane) for the extraction of paeonol were investigated. With the consideration of toxicity, extraction ratio, and the influence on separation, methanol was selected as extractant.

考察了甲醇、乙醇、氯仿、四氯化碳4种溶剂提取丹皮酚的效果，综合考虑提取剂毒性、提取率和对分离的影响，选择甲醇作提取剂。

Solvent Extraction method was applied to separate trace tin and trace germanium, which tributyl phosphate and tetrachloromethane became a kind of extractant, using counter synergistic extraction, and inorganic salt was used as salting-out.

主要是采用液-液萃取法，用磷酸三丁酯与四氯化碳作为混合萃取剂，利用反协同萃取，并加入无机盐作为盐析剂对微量锡与微量锗进行分离富集。

The cross-current flow extraction of substituted anilines from aqueous solution was conducted with extractant which has high extraction efficency and is easy to be biodegraded.

选择萃取效率高、生物降解性好的溶剂对取代苯胺进行了错流萃取的研究，并对萃取后水相的生物降解性进行了研究。

Thirdly, the mechanism of extractant and diluent loss in aqueous phase was studied in both saponified organophosphorus acids and naphthenic acid extraction systems.

本文通过研究皂化有机磷酸、环烷酸从有机相到水相的转移及水相中胶团或o/w型微乳状液的形成，证明了皂化酸性萃取剂和有机溶剂的水相流失与水相聚集体的形成有关。

The microemulsion formed by saponified extractant was destructed with the lanthanide loading in organic phase.

皂化的D2EHPA、PC88A、P229萃取剂的有机相是清亮透明的w/o型微乳状液，萃取稀土离子后，有机相发生破乳。

By adding back-extractant into the extraction solution, two suspended substances are highly enriched to form two solids: ultra-pure coal and caking components. The coal inbuilt state model and its conception are proposed.

通过向CS2/NMP混合溶剂萃取液中添加反萃取剂的反萃取过程，可以将2种类型的悬浮物高度富集形成固体形态的精煤和黏结组分。

Taking the brines from Qinghai Chaerhan salt lakes as raw material, sulfonated kerosine as diluting agent, the experiment of extracting boric acid from brines by 2 - ethyl - 1,3 - haxanediol is carried out. The concentration of extractant,acidity, the ratio of organic phase to brine, the time of extraction and extration isotherm are investigated.

以青海察尔汗盐湖提钾后老卤为原料，以磺化煤油为稀释剂，从萃取剂浓度、酸度、相比、萃取时间、萃取等温线5个方面加以试验，获得了2-乙基-1，3-己二醇从卤水中萃取提硼的最佳试验条件，并与2-乙基己醇和磺化煤油的萃取体系进行比较，得出二元醇的萃取效果高于一元醇的结论。

The separation of solution and extractant is far better than that of myceliumfree solutions of lincomycin. If the content of the mycelium in the ferment...

当发酵液的菌丝体含量控制在15～150g/L时，分层效果较好，油相富集迅速，在实验条件下一次萃取率最高可达78.6%。

The predispersed solvent extraction of lincomycin from fermentation broth containing mycelium taking butyl acetate as extractant has been studied.

以醋酸丁酯为萃取溶剂，采用预分散溶剂萃取法从含菌丝发酵液中直接萃取林可霉素。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失