查询词典 isobutyl

The influences of the dosage of Na2S, pH values,sulfidization time and the types of pH modifiers on the flotation of cerusite and limonite have been studied in this paper,and the performance of ethyl xanthate,butyl xanthate,isobutyl xanthate,amyl xanthate and isoamyl xanthate are studied in detail respectively.

详细研究了硫化钠用量、矿浆pH值、硫化时间以及pH调整剂种类对白铅矿和褐铁矿浮选的影响，重点考察了乙基黄药、丁基黄药、异丁基黄药、戊基黄药和异戊基黄药五种黄药的捕收性能。

Contains: Deionised Water, Mineral Oil, Glycerine, Stearic Acid, Cetearyl Alcohol, Triethanolamine, Carbomer, Lanolin, Tocopherol Acetate, Fragrance, Propylene Glycol, Methyl Paraben, Ethyl Paraben, Butyl Paraben, Isobutyl Paraben, Propyl Paraben, Disodium EDTA.

成分：离子水，矿物油，甘油，硬脂酸油脂剂，棕榈醇乳化剂，三乙醇胺酸碱值调节剂，稳定乳化剂，绵羊油，维生素E，香料，丙烯甘醇保湿剂，甲基木精胶，乙酯，丁酯，尼泊金异丁酯，丙酯，稳定剂缓冲剂。

We sold 2-butanone 8000T, acetone 6000T and methyl isobutyl ketone 5000T in last year. The well-known domestic enterprises and joint ventures are both our main partners. So we have a good market credit, we will not only meet client's demand for the product, but also formed a stable base for logistics and distribution.

本公司年销售丁酮8000T，丙酮6000T，甲基异丁基甲酮5000T，我们主要合作伙伴有合资企业及国内知名企业，具有良好的市场信誉，我们不仅满足客户的生产需求，而且逐渐形成一个稳定的物流配送基地。

Methyl isobutyl ketone is a good origanic slovent and the advanced process for producing MIBK is one-step synthesis by gas-phase condensation and hydrogenation of acetone. In this process, the key technology is to develop the multi-fuctional catalyst, which has both the ability of hydrogenateon and condensation, as well as suitable acid-base sites.

甲基异丁基酮是一种优良的有机溶剂，先进的生产方法是丙酮气相缩合加氢一步法，该工艺关键的技术是开发高效的双功能催化剂，即催化剂同时具有缩合、加氢以及适宜的酸、碱性质。

A new catalyst Ni K/NaX for the synthesis of methyl isobutyl ketone from acetone and hydrogen in one step at atmospheric pressure has been prepared.

利用化学浸渍法制备了系列Ni－ K／NaX复合型催化剂，用于常压下催化丙酮一步法合成甲基异丁基酮，考察了催化剂组成及反应条件对反应性能的影响。

The Pd-supported catalyst on MCM-22 synthesized by static method shows a higher acetone conversion than that prepared by dynamic method in one-step synthesis of methyl isobutyl ketone from acetone.

在丙酮一步法合成甲基异丁基酮反应中，静态条件下合成的MCM-22为载体的催化剂的丙酮转化率较高，这是由于该分子筛的酸量较高所致。

After the digestion of the samples of the effort of the mixed acid, in the condition of pH=2~2.8, the lead in the sample solution and the added pyrrolidine a two-ammonium thiosulfate can come into being a metal complex. With A methyl isobutyl ketone extraction, the lead complexes can be divided from the water phase.

采用混合酸对样品进行消化处理后，在pH2~2.8时，样品溶液中铅与加入的吡咯烷二硫代氨基甲酸铵形成金属络合物，用甲基异丁基甲酮萃取，使铅络合物与水相分开。

In this paper, the ammonium pyrrolidinyldithiocarboxylate- methyl isobutyl ketone chelated-extract system was used. APDC chelated with Pb2＋ in solution, and then extracted into organic phase with MIBK. The cyclic voltammetric behavior of Pb-APDC complex at the liquid/liquid interfaces has been studied with classic three-electrode.

本文利用吡咯烷二硫代氨基甲酸铵作为螯合剂，甲基异丁酮作为萃取剂，将水相中的Pb2+萃取到有机相中，利用经典的三电极系统研究该有机相在液/液界面的伏安特性。

Acetone is also an important basic organic material, being used in the manufacture of methyl methacrylate, bisphenol A, methyl isobutyl ketone, and also in the production of cellulose acetate tablets, solvents for pla,stics and paints, and the solvent dewaxing for petroleum refining. In 2006, the production ability for phenol was 610,000 tons per year in China, the output was 520,000 tons, and the appearance consumption was 752,000 tons.

丙酮也是重要的基本有机原料，它用于制造甲基丙烯酸甲酯、双酚A、甲基异丁基酮等，用于生产醋酸纤维素片、塑料和涂料的溶剂以及石油炼制的脱蜡溶剂。2006年，我国苯酚生产能力61万吨/年，产量52万吨，表观消费量75.2万吨。

We are the professional agents for storage and manage to imports and domestic produced organic chemical solvent 2-butanone, methyl isobutyl ketone, acetone.

储运。经营进口和国产有机化工溶剂丁酮，甲基异丁基甲酮，丙酮。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。