硫酸化

The hydrothermal method is used to obtain two types of TiO2 nanotube catalysts, to which the vitriol with different density is applied to acidify them.

利用水热法制备了两种TiO2纳米管催化剂，用不同浓度硫酸对制备得到的TiO2纳米管进行酸化。

Corn starch ; concentrated sulphuric acid ; acidify ; grape sugar

玉米淀粉；浓硫酸；酸化；葡萄糖

In this thesis , the effects of acid materials on calcareous soil were studied by using laboratory soil trial and pot experiments trail. The text studied effects of acid materials on pH value in calcareous soil ; studied effects of phosphoric acid (H2SO4 as control) on pH value and micronutrient availability ; studied relation between P and available Fe, Zn in plant; studied effects of acid material on growth of acidophilic plant.

本文采用室内模拟试验和盆栽试验相结合的方法，研究了不同酸性物质对石灰性土壤的酸化效果；磷酸和硫酸对石灰性土壤pH值及微量元素有效性的影响；植物体内磷、有效铁、锌的关系；不同酸性基质对嗜酸植物生长的影响。

Chemical raw materials: The main raw materials include a variety of electroplating and metal surface treatment agent, such as acetic acid in the Czech Republic, nickel, copper acetate, nickel fluoride, cobalt sulfate, cobalt acetate, hydrofluoric acid, Yunnan tin sodium, Taiwan's Ya-tin pyrophosphate, oron the anion exchange resin, cation exchange resin, scale inhibitors, cleaning agents, detergents,the phosphating agent, plate washer water, with the exception of the Prince of water, oil derusting water, the United States steel at room temperature blackening agent, on behalf of behalf of the black-white (open cylinder agents, supplements), and alloys such as gun color.

六、化工原料：主要包括各种电镀原料及金属表面处理剂，如中捷的醋酸镍、醋酸铜、氟化镍、硫酸钴、醋酸钴、氢氟酸、云南的锡酸钠、台湾的焦磷酸亚锡、奥龙的阴离子交换树脂、阳离子交换树脂、阻垢剂、清灰剂、除垢剂、创辉的磷化剂、洗板水、除腊水、除油除锈水、美国的钢铁常温发黑剂、代白代黑、枪色黑合金等。

In order to reduce the production cost of aluminum fluoride by wet process ,and to use the local mineral resources,hydrofluoric acid,sulfuric acid and kaolinite were used as raw materials to produce aluminum fluoride by wet process .

为了降低湿法氟化铝的生产成本，同时利用本地的矿产资源，利用氢氟酸、硫酸、高岭土为原料生产湿法氟化铝。

It does not need the operator to press the button and turn the valve to control the temperature and regulate the velocity of sulphuric acid.

磺化过程PLC控制系统显示了PLC在过程控制方面比其他种类计算机的优越性，结束了磺化过程靠按动按钮控制温度、扭动阀门调节硫酸速度的人工控制的历史。

Melting point 3410 ℃, boiling point 560 ℃, relative density of 1935, F the external electronic structure of 5d46s2, in the chemical reaction time is very easy to lose 1-6 electronic, but also can get 1-2 electronic, so oxidation number of 0,± 1,± 2, 3, 4 , 5 and 6, with 6 price of the most stable compounds, such as WO3 does not dissolve in water, the air will form in the tungsten trioxide thin protective layer of tungsten, tungsten with fluorine at room temperature, chemical combination, red hot when there is no moisture and Bromine iodide together, red hot when you can and water reaction WO3, at room temperature reaction of tungsten with aqua regia, but the hot concentrated hydrochloric acid and sulfuric acid can only be played with its weak response, but molten nitrate, nitrite, too Hydrogen peroxide, sulfur steam, steam and other phosphorus can play intense reaction, high temperature can not be carbon, boron and silicon reaction of binary compounds, widely used in industrial tungsten steel and tungsten carbide, pure tungsten filament is used to the system, and X-ray tube Tube heating components, semiconductor components can be prepared tungsten silicide, tungsten industrial production is white or black tungsten ore tungsten ore refining.

熔点3410℃，沸点560℃，相对密度1935，F外围电子结构为5d46s2，在化学反应时很容易丢掉1—6个电子，也能得到1—2个电子，所以氧化数为0、±1、±2、＋3、＋4、＋5和＋6，以＋6价化合物最稳定，如WO3不溶于水，空气中的钨会形成薄层三氧化钨保护层，钨能与氟在室温下化合，红热并无潮气时能与溴、碘化合，红热时还能和水反应生成WO3，室温下钨可与王水反应，但热的浓盐酸和硫酸只能与其起微弱反应，但对熔融的硝酸盐、亚硝酸盐、过氧化氢、硫蒸汽、磷蒸汽等能起激烈反应，高温下不能与碳、硼和硅反应生成二元化合物，工业上广泛使用钨钢和碳化钨，纯钨用来制灯丝、电子管和X射线管的发热元件，硅化钨可制半导体元件，钨工业生产是将白钨矿石或黑钨矿石精炼。

High cation transference number is necessary for high performance polymer electrolytes. In this work, hyperbranched lithium polyglycidol sulfate was synthesized as a novel spherical macromolecular lithium salt.

提高锂离子迁移数是聚合物电解质的重要课题，为此本论文以超支化聚合物为母体，合成了一种新型的球状大分子锂盐——超支化聚缩水甘油硫酸锂，并用于微孔型聚合物电解质。

The strain L-3 that could produce raw starch-digesting glucoamylase were isolated from soil and mildewed rice. It was identified to be a Monascus Purpureus.

从土壤及霉变淀粉质材料等样品中分离获得到产糖化酶活性较高的菌株L-3，经鉴定为一种紫红曲霉；通过紫外线和硫酸二乙酯分别进行诱变，得到4株性能良好的糖化酶变异株，其中菌株7性能最好，命名为M.F7。

All the derivatives were subjected to elemental analysis, FT-IR analysis, and Congo red test and their degrees of substitution were determined.

对虎奶多糖进行化学修饰，制备了多种不同取代度的羧甲基化和硫酸酯化虎奶多糖，并分别进行了元素分析、FT-IR分析及GPC分析，测定了它们的取代度和分子量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。