查询词典 acid process

Reparation of PBO was begun with the polymerization process in which composite salts that contained 4,6-diaminoresorcinol and terephthalic acid were dissolved in polyphosphoric acid and phosphorus pentoxide.

BO纤维制备：以4，6-二氨基间苯二酚的盐酸盐为单体原料，与对苯二甲酸混合，经过中和反应、脱色处理、干燥后制成复合盐；再以多聚磷酸为溶剂，添加五氧化二磷和抗氧化剂，经过预聚合反应制备出PBO聚合物；聚合物通过双螺杆挤出机进一步进行聚合，然后通过喷丝板挤出，在磷酸水溶液中凝固成型，经过洗涤、干燥等过程，最终卷绕成型。

Hydrothermal reactions makes water a Bronsted base-acid and act as an effective catalyst and the metal ions represent Lewis base character. The conversion process occurs in a very complex network of parallel, consecutive and equilibrium reactions, and the last step being the catalyzed Cannizzaro-type reaction of pyruvaldehyde to lactic acid.

nsted酸碱并具有一定的催化作用，金属离子在水热催化降解丙酮醛生成乳酸中表现出Lewis碱的特性，能与丙酮醛生成金属复合物，最终生成乳酸，此反应过程符合Cannizzaro反应特性。

Homogeneous,highly crystalline Se and Te nanowires were prepared by a chemical solution process using selenious acid and orthotelluric acid as precursor materials.

采用化学液相反应，以亚硒酸或者原碲酸为原料，合成出尺寸均匀、高结晶度的硒、碲纳米线。

The Ni and Zn-doped spiculate α-FeOOH were prepared by the coprecipitation method and citric acid method using FeCl2、Zn(NO3)2、Ni(NO3)2 and NaOH as raw material and spiculate α-FeOOH as intermediate. Then they successively were enwraped by citric acid complex of the Ni and Zn and heat treated to get spiculate nano-Ni0.5Zn0.5Fe2O4. The particles size and slenderness ratio of spiculate nano-Ni0.5Zn0.5Fe2O4 were successfully controlled by the doped mass of Ni and Zn in the coprecipitation process.

以FeCl2、Zn(NO3)2、Ni(NO3)2和NaOH为原料，借助针状α-FeOOH做为中间体，有效的把共沉淀法和柠檬酸法相结合，制得掺有镍和锌的针状纳米α-FeOOH，在其表面包裹镍和锌的柠檬酸络合物后，经热处理制得了针状的纳米Ni0.5Zn0.5Fe2O4 ，并通过控制共沉淀法过程中镍和锌的掺入量，有效的控制了针状纳米Ni0.5Zn0.5Fe2O4 的粒径和长径比。

The right formula of the TiO2 sol was found through discussing the influence of acetic acid and hydrochloric acid. Then in different factors such as temperature, pH value had been studied the experiments of the influences upon the time of TiO2 sol into gelation.On the surface of the textiles treated with the sol-gel process may form a thin sporous oxide film.

本论文将成功制备的稳定透明的TiO_2水溶胶用于纯棉织物后整理上，使织物具有一定的屏蔽紫外线和拒水的性能，并且研究了TiO_2水溶胶与环氧基改性硅氧烷水溶胶复合使用，对直接染料染色的织物进行后整理，能起到较好的固色效果。

Glycididazole acid;Taurocholic acid;Cattle and sheep bile;Extraction process

李少春，李培锋，关红内蒙古农业大学动物科学与医学学院，内蒙古呼和浩特 010018 甘氨胆酸；牛磺胆酸；牛羊胆汁；提取工艺

Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane ,trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

Some, including tetradecanoic acid, were found early but not late in the decomposition process, while others, such as acetic and propanoic acid, were found late but not early.

例如十四烷酸之类的，初期存在但腐烂过程中就消失了。还有像醋酸和丙酸这样的，后期释放但初期没有。

2AN oxygen radicle benzene Mao water solution reaction process in, the hydrogen bromine is sour with acetic acid Mo Er compare for 1:be tetrahydroxy and 2 mols at 1:00|weigh to crystallize in the L hydrochloric acid aqua, the product accepts to lead superior turn

甲氧基苯醌水解反应过程中，当氢溴酸与醋酸摩尔比为1：1时，四羟基苯醌与2mol/L的盐酸溶液中重结晶产品收率最佳

The method has the advantages that: the high-concentration substrate inhibition is eliminated and nutritive materials are also supplemented through controlling the pH value in the fermentation environment and supplementing a carbon source and the substrate, so the thalli can grow in the suitable environment, the content of phenyllactic acid reaches 6 to 20g/L after the fermentation, the process is simple, the environmental pollution is less, the operation is convenient, and the output of phenyllactic acid is high.

本发明的优点是：通过控制发酵环境的pH，并补加碳源和底物，既解除了高浓度的底物抑制，又补充了营养物质，使得菌体能够在适宜的环境下生长，发酵结束后，苯乳酸的含量达到6～20g/L，工艺简单、环境污染小、操作方便、苯乳酸的产量高。

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