查询词典 acid anhydride

IV . Content and Capacity: 2,400,000t/a stamping coke, 30,0000 t/a coal tar, 10,0000 t/a methanol, 10,0000 t/a phenol anhydride, 5,0000 t/a Needle coke, 10,0000 t/a Hydrogenation of anthracene oil, 10,0000 t/a Hydrogenation of Crude benzene, 2,0000t/a β-naphthol, 1,0000t/a 2-hydroxy-3-naphthaoic acid , 2,0000t/a UHP ultra-high power electrode.

四、项目建设内容及规模：240万吨/年捣固焦炉及化产回收、30万吨/年焦油、10万吨/年甲醇、10万吨/年苯酐、5万吨/年针状焦、10万吨/年蒽油加氢、10万吨/年粗笨加氢、2万吨/年二萘酚、1万吨/年2.3酸、2万吨/年 UHP 超高功率电极。

To improve the effect of CDCA on dissolving cholesterol gallstone, the water-soluble copolymers as polycarboxylic acid of comb-like copolymers and C_(60)-PCC were synthesized, which being used for modification of CDCA and strengthening effects of CDCA on dissolving the cholesterol gallstones by their entropy-repelled properties of comb-shaped side chains in buffers of phosphate and in model bile.The design theory of polymer was mainly employed to synthesis the conjugate of PCC-CDCA and C_(60)-PCC-CDCA by C_(60), polyoxyalkylene allylalkyldiether and maleic anhydride, which were copolymerized with AIBN as initiator, and then PCC or C_(60)-PCC were reacted with CDCA. The structures of the copolymers and the conjugates of PCC-CDCA and C_(60)-PCC-CDCA were confirmed with IR, TLC and TEM. The dissolving effects and the dissolution kinetics mechanism of cholesterol gallstone was inverstigated in PBS and in model bile of different cholesterol saturated index at pH7.4, including PCC-CDCA or C_(60)-PCC-CDCA.

利用高分子设计理论，以烯丙基聚氧乙烯基醚、顺丁烯二酸酐、C_(60)和CDCA为原料，以偶氮二异丁腈为引发剂，合成具有梳状侧链结构的梳状共聚物-CDCA结合物和C_(60)-梳状共聚物-CDCA结合物，以IR、TLC和TEM法表征共聚物的结构，并在pH7.4的PBS液和不同胆固醇饱和指数的模拟胆汁中进行溶石效果的研究，探讨在PBS液和不同CSI的模拟胆汁中结合物溶解胆固醇结石的效果和溶解动力学机制。

As superplasticizer , a series of comb-shaped copolymers of polycarboxylic acid were synthesized by polyoxyethylene allyl methyl diether, maleic anhydride, and styrene with different initiators,and esterified with PEO-n.

以聚氧乙烯甲基烯丙基二醚、顺丁烯二酸酐、苯乙烯等为共聚单体，采用不同引发剂，合成了一系列聚羧酸型梳状共聚物超分散剂，并以PEO n单酯化得酯化产物，研究了共聚物的结构、组成、添加量等对水泥粒子分散性能的影响。

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

Starch acetates with different degrees of substitution were synthesized by reaction of corn starch and acetic acid/acetic anhydride catalyzed with concentrated.

以浓硫酸作催化剂，玉米淀粉为原料，冰醋酸和醋酸配为改性剂，合成了不同取代度的玉米淀粉醋酸酯。

Asymmetric catalytic activity of chiral spiroborate esters,- or-1,1′-bi-2-naphthoxyboric acid-proline anhydride [-1 or-1], toward borane reduction of prochiral imine s has been ob- served.

手性螺硼酸酯-或-1，1'-联-2-萘酚硼酸--脯氨酸酐[-1或-1]对前手性亚胺硼烷还原的不对称催化活性被观察到。

The seven units at the complex include capacity for acetic acid, vinyl acetate monomer, acetic anhydride, vinyl acetate emulsions, Celstran long fiber-reinforced thermoplastic, GUR ultra-high molecular weight polyethylene and a polymer compounding unit.

该基地包含醋酸、醋酸乙烯单体、醋酐、醋酸乙烯-乙烯共聚乳液、超高分子量聚乙烯和长纤加强热塑性塑料的生产安装以及特种功效高技术复合材料安装。

The seven units at the complex include capacity for acetic acid, vinyl acetate monomer, acetic anhydride, vinyl acetate emulsions, Celstran long fiber-reinforced thermoplastic, GUR ultra-high molecular weight polyethylene and a polymer compounding unit.

该基地包含醋酸、醋酸乙烯单体、醋酐、醋酸乙烯-乙烯共聚乳液、超高分子量聚乙烯和长纤加强热塑性塑料的生产安装以及特种功效高技巧复合材料安装。

Two types of haptens, the earboxylated propyl amino derivative of the acid moiety (HCA1) that is the hydrolyzed product of cyhalothrin, and the carboxylated ethyl carbonyl derivative of the alcohol moiety (HCB2) were synthesized, and conjugated with the carrier proteins bovine serum albumin and ovalbumin respectively by the active ester method and the mixed anhydride method. The polyclonal antibodies were obtained after immuning to the New Zealand rabbits.

通过对氯氟氰菊酯分子结构中的酸部分接4-氨基丁酸(HCA1)和醇部分接丁二酸酐(HCB2)，合成两种不同的半抗原，并通过碳二亚胺法将HCA1和HCB2分别与牛血清蛋白偶联制备了人工抗原HCA1-BSA和HCB2-BSA，通过活泼酯法将HCA1、HCAS和HCB2分别与卵清蛋白偶联制备包被抗原，两种人工抗原通过免疫新西兰大白兔来制备相应的多克隆抗体。

Epoxysuccinic acid was synthesized from maleic anhydride using sodium tungstate as catalyst and hydrogen peroxide as oxidizer and was characterized by IR and 13 C NMR.

以马来酐为原料，钨酸钠为催化剂，双氧水为氧化剂，合成了环氧琥珀酸，并对其进行了红外、13C核磁表征。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。