查询词典 phosphoric acid

China now has four manufactures with an annual production capacity of 600,000 tons of phosphoric acid and seven ones with 240,000 tons. It is predicted that the demand for phosphate will be 12 million tons and chemical fertilizer 40 million tons in next year. The rapidly growing demand for high Monoammonium phosphate fertilizer will make the market much more prospective.

现在国内有60万吨/年磷酸装置四家，24万吨/年磷铵装置七家，预测2005年磷肥需求量为1200万吨，化肥需求量为4000万吨，目前进口磷铵为500万吨，而高浓度的磷铵肥料的需求量处于不断上涨趋势，市场销售会越来越旺盛。

At present, the company mainly produces: potassium dihydrogen phosphate, monoammonium phosphate, diammonium phosphate, phosphoric acid (85% industrial grade), potassium nitrate,Sodium Tripolyphosphate(Industrial-grade, Food-grade),NPK and other phosphorus products.

目前，公司主要生产：磷酸二氢钾、磷酸一铵、磷酸二铵、磷酸（85%工业级）、硝酸钾、三聚磷酸钠、各种规格的NPK复合肥等磷化工系列产品。

Key words: monoammonium phosphate; neutralized slurry concentration process; purifying phosphoric acid; the process of fertilizer integrated with salt; equipment

磷酸一铵；中和料浆浓缩法；净化磷酸；肥盐结合工艺；装备

Finally a process is presented in this paper, which prepares monopotassium phosphate by electrolyzing wet-process phosphoric acid and potassium chloride solutions.

本文提出了电解湿法磷酸生产磷酸二氢钾的工艺流程。

The second electrolytic process is successful, which is for production of monopotassium phosphate, hydrogen and chlorine from potassium chloride and phosphoric acid by using a cationic permselective membrane cell.

利用阳离子交换膜电解氯化钾和磷酸生产磷酸二氢钾并副产氢气和氯气的工艺路线是成功的。

The studies showed that the optimum conditions of the reaction were the amount of the 75% gathers the phosphoric acid 30 mL,the mole ratio ofhexamethylene tetramine to nitrophenol was 2∶1,the reaction time was about 3.0 hours,the reaction temperature was about 105℃.

结果表明较佳反应条件是：在对硝基苯酚为3.5 g的情况下，75%的多聚磷酸用量为30 mL，n∶n=2∶1，反应时间为3.0 h，反应温度105℃，5-硝基水杨醛的产率可达68.1%。

Methods Rhizoma Gastrodiae, Pellis Ovis, and Calculus Bovis Sativus in Tianhuang Houzao powder were identified by TLC. The content of Gastrodin in the powder was determined by HPLC. The HPLC condition was as follows: column was Phenomenex C18 (4.60 mm×250 mm, 4 m), the mobile phase consisted of methanol-0.05% phosphoric acid (3:97), the UV detection wavelength was at 220 nm, the flow rate was 1.0 ml/min with column temperature at 25℃.

用薄层色语法鉴别天黄猴枣散中天麻、猴枣、体外培育牛黄；用高效液相色谱法对制剂中天麻素进行定量分析，Phenomenex C18 (4.60 mm×250 mm， 4 m)色谱柱，流动相为甲醇－0.05%磷酸溶液(3：97)；检测波长220 nm，流速1.0 ml/min，柱温25 ℃。

"Phosphatic fertilzers are all derived from calcium salts of phosphoric acid and these are found as raw bones, apatite and phosphate rock."

无论什么磷肥，全都来自含钙的磷酸盐。生骨粉、磷灰粉、磷灰石含有大量的这种盐类。

Included here are organic phosphinic, phosphonic and phosphoric acid derivatives and their thiophosphorus counterparts.

以磷作为主要成分的化合物，包括有机膦，磷酸及磷酸衍生物及其硫代磷酸相似物。

The cellulose fiber is partially reacted with phosphoric acid impregnated to form phosphonate ester at first.

纤维素与浸渍的磷酸部分生成磷酸酯键，但它们在160℃以上逐渐分解，纤维上残留少量偏磷酸类化合物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。