丁基

In comparison with the organic solvents as reaction medium, higher conversion was achieved the tert-ethyl valerate could be formed in the ionic liquid medium.

当反应体系中存在水时，有特戊酸生成。表明反应中2，2，4-三甲基戊烷首先发生β-断裂反应，生成叔丁基正碳离子和异丁烯。

Bromocyclobutanecarboxylic acid is prepared starting from diethyl malonate and trimethylene.

同时还采用5-环丁基乙内酰脲开环法制备了1-氨基环丁甲酸。

Have unit of 6 main production; Produce per year device of device of 130 Kt butadiene styrene rubber, 38 Kt butadiene rubber, 56 Kt and device of extraction of 53 Kt butadiene each one, device of aether of butyl of 40 Kt methylic father's younger brother, 15 Kt 1 - butene device.

现有 6套主要生产装置；年产 130 kt丁苯橡胶装置、 38 kt顺丁橡胶装置、 56 kt和 53 kt丁二烯抽提装置各一套、 40 kt甲基叔丁基醚装置、 15 kt 1－丁烯装置。

Main product has: SBR of butadiene styrene rubber - 1500, SBR - 1502, SBR - 1712, butadiene rubber BR - 9000, BR - 9073 with 6 ＃ solvent naphtha, 120 ＃ industrial aether of butyl of solvent naphtha, methylic father's younger brother, 1 - Ding Xi.

主要产品有：丁苯橡胶 SBR－ 1500、 SBR－ 1502、 SBR－ 1712，顺丁橡胶 BR－ 9000、 BR－ 9073和 6＃溶剂油、 120＃工业用溶剂油、甲基叔丁基醚、 1－丁烯。

The grafting of polycaprolcatone on starch by ring-opening polymerization of e -caprolactone was initiated from the starch hydroxyl functions in the presence of a catalyst such as stannous octoate Sn(0ct2, Dibutyltin dilaurate or titanium tetrabutoxide. The grafting ration could reach 16%. IR, X-ray diffraction and DSC were used to investigate the grafting-polymer.

在辛酸亚锡Sn(Oct_2、二月桂酸二丁基锡和钛酸丁酯等催化剂作用下，淀粉羟基引发己内酯单体进行配位聚合，淀粉接枝率可以达到16％，并通过红外光谱、X—ray衍射及DSC等测试手段对反应产物进行了表征。

The experiment makes clear, should wear mine size - 0.074 mm is occupied 95%, ore pulp chroma is 30%, ph value is 7, catch receive a dose (huang yao of fourth ammonium black medicine and butyl presses 1 ∶ 1 make up), activator , dispersive agent 6 slant phosphori

实验表明，当磨矿粒度-0.074 mm占95%、矿浆浓度为30%、ph值为7.0、捕收剂(丁铵黑药和丁基黄药按1∶1配制)、活化剂、分散剂的用量分别为240 g/t、800 g/t、800 g/t时，粗选铜的回收率为64.65%，粗精矿铜的品位达到4.54%。

The average epoxy value and the average viscosity of such diluent were 0.502×10-2eq/g and 3.2 mPa.s(25 ℃) respectively. It was an ideal diluent and could be used instead of active diluent such as butyl epihydrin etc. and non-active diluent such as dibutyl phthalate etc. in epoxy resin industry. The preparation of the epoxy diluent by fusel oil could not only settle the problem of environmental pollution caused by fusel oil drainage, but also produce economic and social benefits.

结果表明，杂醇油制备的环氧树脂活性稀释剂环氧值平均为0.502×10-2eq/g，环氧值适中；粘度平均值为3.2 mPa.s(25 ℃)，粘度较小，为比较理想的环氧树脂活性稀释剂；该环氧树脂活性稀释剂可望代替环氧丙烷丁基醚等活性稀释剂和邻苯二甲酸二丁酯等非活性稀释剂应用于环氧树脂工业；可解决酿酒企业和酒精厂下脚料杂醇油排放带来的环境污染问题。

Preferred examples of thermal initiators include persulphates especially sodium and ammonium persulphate, peroxides especially benzoyl peroxide, t-butyl hydroperoxide and lauryl peroxide, and azos, especially azobisisobutyronitrile.

热发起者首选的例子包括硫酸盐，尤其是钠，过硫酸铵的，过氧化物尤其是过氧化苯甲酰的吨丁基过氧化氢和十二烷基过氧化物，和azos，尤其是二异丁腈。

After being oxidated for 34 h, and then the contents of Fe2+ in the 9K liquid solution with 4×10-4mol/ L xanthates, dithiophosphates and D-250 added inreased from 4.03 g/L to 4.64, 4.77 and 5.91g/L, respectively. After leaching for 35 d, the leaching rates of Zn are 92% and 61% respectively. It shows that the flotation reagents (xanthates, D-250) have great effect on the activity of bioleaching bacteria.

研究结果表明：添加4×10-4mol/L的丁基醚醇、乙基黄药、丁胺黑药，氧化34 h后，使 K液体培养基中的Fe2+质量浓度由4.03 g/L分别增加至4.64 g/L， 4.77 g/L和5.91 g/L；浸出35 d后，精矿中的浸出率分别为92%和61%，这进一步验证了浮选药剂对浸矿细菌活性的影响。

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。

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。