查询词典 sulfuric

The task and goal on phosphatic compound fertilizer industry in Hebei province during the period of the Eleventh Five-Year Plan are presented, and the future development on phosphates, sulfuric acid and compound fertilizers are discussed.

介绍河北省&十一五&期间磷复肥工业发展的任务与目标，以及磷肥，硫酸，复混肥行业发展的工作思路。

Serum total cholesterol was determined by isopropanol withdrawing and ferric-glacial acetic acid -sulfuric acid developing method, serum triglyecride by isopropanol withdrawing and acetylacetone developing method,serum high density lipoprotein-cholesterol by magnesium phosphotungstate mehod, respectively. Serum low density lipoprotein-cholesterol was calculated by the equation: LDL-C=TCh--0.2 TG.

采用异丙醇抽提、三氯化铁-冰醋酸-硫酸显色法检测血清总胆固醇，用异丙醇抽提、乙酰丙酮显色法检测血清甘油三酯，用磷钨酸镁法检测血清高密度脂蛋白-胆固醇，用等式LDL-C=TCh--0.2TG计算血清低密度脂蛋白-胆固醇。

According to the characteristics of pinnoite in Dachaidan, a new technology of preparing boric acid with two-step sulfuric acid method was studied.

摘要针对大柴旦柱硼镁石矿特点，对酸法制硼酸进行了工艺优化研究。

Kinetic reaction behavior of neo- polyhydric alcohols with fatty acids catalyzed by sulfuric acid was studied.

比较了Brnsted酸，包括硫酸、磷酸、对甲苯磺酸，催化季戊四醇与脂肪酸的酯化反应行为，结果表明，硫酸催化酯化反应速率最快，能有效催化不同类型的新戊基多元醇与脂肪酸的酯化反应，羟基转化率达到98%以上。

By orthogonal experimental design method, the optimized degumming parameters have been confirmed: preacid processing, the concentration of sulfuric acid 2 g/L, treatment time 120 min, treatment temperature 60℃, bath ratio 1:15; alkali treatment, the alkaline concentration of one-pot 7.5 g/L, that of two-pot 9 g/L, treatment time of one-pot 3.5h, that of two-pot 2h, treatment temperature 100℃, bath ratio 1:20, each concentration of the Sodium Silicate, carbamide, and JFC 2%.

预酸处理，硫酸溶液质量浓度2 g/L，处理时间120 min，处理温度60℃，浴比1：15；碱处理，一煮碱溶液质量浓度7.5 g/L，二煮碱溶液质量浓度9 g/L，一煮处理时间3.5 h，二煮处理时间2 h，处理温度100℃，浴比1：20，其中一煮与二煮中添加2%的硅酸钠、尿素和JFC。

Phosphate rock is mixted with sulfuric acid and with revycled first-wash acid in a premixer.

磷矿在一个预混合槽中与硫酸以及循环回的第一洗涤酸进行混合。

The results indicated that using modified phenol-sulfuric acid method, the content of polysaccharide was 5.5% in Ramulus mori, and 56.6% in RMPS, which exceeded 70% in RMPS after purifying for a few times.

结果显示，用改良的苯酚-硫酸法测得桑枝中多糖含量为5.5%，提取物桑枝多糖中的含量为56.6%。

To broaden desert shrub new utilizing fields, accelerate desert shrub developing to the direction of high added-value and high benefit, the paper studied on the liquefaction of Salix, Caragana and Poplar in the presence of Phenol under sulfuric acid catalysis. The optimum processing parameters for Salix, Caragana and Poplar liquefaction and resinification were investigated. The effect of molar ratio of formaldehyde to liquefied products and NaOH to liquefied products on the character and glue strength of liquefied products resin was studied.

摘 要：为了开辟沙生灌木资源新的应用领域，促使沙生灌木资源的利用向高附加值、高效益的方向发展，本文以苯酚作液化剂，以稀硫酸作催化剂对沙柳、柠条和杨木进行液化实验，分析了反应温度、液比、催化剂用量及液化时间对液化反应的影响；并研究了沙柳、柠条和杨木液化产物树脂化合成工艺和配方，分析了不同的甲醛与液化产物摩尔比以及氢氧化钠与液化产物摩尔比对沙柳、柠条和杨木液化产物树脂的各项性能的影响。

Objective To study the degradation of Rhizoma Typhonii polysaccharide with sulfuric acid under the normal and ultrasonic condition.

目的 在常态和超声条件下，对附子多糖在硫酸中的降解进行研究。

In this study,sulfuric acid was added into woolscouring effluent with an aim to reduce the polarity and Zeta potential of suspended organic colloid,resulting in organic colloid to agglomerate and sedimentate.

洗毛废水是一种高浓度有机废水，含固率高，主要成分是羊毛脂、羧酸盐和土杂，由于强极性物质的存在和胶体强的负电性，导致洗毛废水形成稳定的乳化体系。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。