混合成的

The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.

本发明涉及一种合成聚对苯二甲酸1，3-丙二醇酯催化剂的制备方法，将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中，总重量浓度为4～10％，在0-120℃通过机械搅拌或超声波混配10-60min制得；钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm；用此催化剂制备PTT产品，酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min，产品特性粘数0.70-1.05dL/g，色相b值在2-6之间，切片可用于加工新型合成纤维及工程塑料产品。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下：一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸；蒸馏NMP；干燥增溶剂；二、在氮气气氛下，Py与NMP混匀后加入密封的反应器中，再加入增溶剂，然后加入5-氨基-2-苯并唑，搅拌；三、在氮气气氛下，将步骤二的混合液搅拌并升温至50℃～150℃后加入脂肪族二酸，再加入TPP后缩聚；四、再倾入甲醇析出沉淀，过滤，清洗沉淀，再干燥；即得到含唑环半芳香聚酰胺。

Flocculants in wastewater treatment has become increasingly widely used, in which high-performance composite coagulant in water treatment technology occupies an important position, to that end, research synthesis of a new type of high-performance composite PFS purificant PISC, and dying, coal washing, paper and municipal sewage and other industrial wastewater purification experiments confirmed that the water purification agent with the exception of turbidity, detreated reduce COD, BOD5 and SS functions.

在废水处理方面絮凝剂已越来越广泛地被应用，其中高效复合混凝剂在水处理技术中占有十分重要的地位，为此，研究合成了一种新型的高效复合聚铁净化剂PISC，并对印染、洗煤、造纸和城市污水等工业废水进行净化实验，证实该净水剂具有除浊、脱色、降低COD、BOD5及SS的功能。

Two novel tridentate polypyridyl mixed-ligand cobalt [Co (H2Bzimpy)(superscript 3+)] and ruthenium complexes were synthesized and characterized via elemental analysis and (superscript 1)H NMR. The crystal structure of complex B was determined. The interactions between the complexes and calf thymus DNA were investigated with absorption and fluorescence spectroscopys. Photoactivated cleavage of pBR322DNA by the synthesized complexes were studied.

合成了两种新型三齿多吡啶钴[Co(H2Bzimpy)](上标 3+)和钌混配配合物，用元素分析和1HNMR等对其结构进行了表征，测定了配合物B的晶体结构用电子吸收光谱和荧光光谱等方法研究了配合物与小牛胸腺DNA的相互作用以及配合物对pBR322DNA的断裂作用。

LiBOB was synthesized by an improved solid-state method. H2C2O42H2O was dehydrated to get anhydrous H2C2O4, and H2C2O42H2O was mortared with LiOHH2O. The mixture of H2C2O4 and LiOHH2O was preheated at 60 ℃ for 2 h before adding H3BO3 in several times to be mortared. In vacuum dryer, the mixture of the three starting materials was preheated in two steps: at 70 ℃ for 6 h and then at 100 ℃ for 3 h.

用改进的固相法合成一种新型电解质锂盐－双乙二酸硼酸锂：首先将脱去结晶水的H2C2O4与LiOHH2O研磨混匀，在60 ℃预热2 h后分批加入H3BO3，然后，于真空条件下在70 ℃和100 ℃分别保温6 h和3 h，得到LiBOB粗产品。

LiBOB was synthesized by an improved solid-state method. H2C2O4·2H2O was dehydrated to get anhydrous H2C2O4, and H2C2O4·2H2O was mortared with LiOH·H2O. The mixture of H2C2O4 and LiOH·H2O was preheated at 60 ℃ for 2 h before adding H3BO3 in several times to be mortared. In vacuum dryer, the mixture of the three starting materials was preheated in two steps: at 70 ℃ for 6 h and then at 100 ℃ for 3 h.

摘 要：用改进的固相法合成一种新型电解质锂盐——双乙二酸硼酸锂：首先将脱去结晶水的H2C2O4与LiOH·H2O研磨混匀，在60 ℃预热2 h后分批加入H3BO3，然后，于真空条件下在70 ℃和100 ℃分别保温6 h和3 h，得到LiBOB粗产品。

In this paper, methods of "physic blending" and "polymerizing in situ" were employed to synthesize CdS/PU hybrid nanocomposites.

本文分别采用&物理共混&和&原位聚合&两种方法合成了聚氨酯基CdS纳米杂化材料，并采用&接枝到表面&的方法实现了功能化聚醚分子链与CdS纳米晶的组装。

Acetic acid equipments using material in PTA, PVA, aldehyde oxidation and methyl alcohol carbonyl synthetic four plants in chemical industry and chemical fibre production are analyzed.

对化工化纤生产中的精对笨二甲酸、聚乙烯醇、乙醛氧化生产醋酸与甲醇羰基合成醋酸4个装置醋酸设备用材进行分析，并对含Cl-、含Br-、含I-的醋酸及含Cl-的甲乙混酸对不锈钢、铜、钛与镍基合金等金属材料腐蚀原因作了讨论。

There, they will be amplified by powerful strobes as they pass through synthetic neodymium-doped phosphate glass (the pink glass pictured on above).

然后在通过混有钕的合成磷酸盐的过程中，利用强大的频闪放电管放大。

The aliquots of the amplified DNA by polymerase chain reaction were electrophoresed on 1. 5% agarose gel and visualized by ethidium-bromide fluorescence.

将提取的适量RNA与逆转录酶、下游引物反转录合成cDNA的第一链，快速离心混匀，37℃1小时，95℃10分钟，灭活逆转录酶。

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