concentration of sulfuric acid meaning in Chinese

硫酸的浓缩

Examples

Synergistic inhibition between cetyltrimethyl ammonium bromide and nacl on the corrosion of cold rolled steel in the various concentrations of sulfuric acid
十六烷基三甲基溴化铵与氯化钠对不同浓度硫酸中冷轧钢的缓蚀协同作用
Some main results of testing research were as fellows : i . in the course of testing of leaching zinc dross , leaching zinc dross by sulfuric acid was researched and the effects on the leaching rate of the zinc dross were analyzed by author , the optimum conditions of leaching testing of zinc dross were determined as fellows : liquid - solid ratio 6 : 1 , stirring ratio 250r / min , granularity 120 mesh , the soaking time 5h , the concentration of sulfuric acid of 30 % , and under these conditions , the rate of leaching zinc is above 92 . 0 % . ii . in the course of testing of purification , on the basis of comprehending and comparing all present methods of the manganese - removal and iron - removal , the oxidizing method of manganese - removal in zinc sulfate solution using ammonium persulfate was put forward and the oxidizing method of iron - removal in zinc sulfate solution using the goethite process and oxidation - hydrolysis process was adopted
研究的主要结果具体如下： 1 、研究了硫酸浸出锌浮渣并分析了影响浸出率的各种因素，确定了浸出锌浮渣的最佳条件为：液固比为6 ： 1 ，搅拌速度为250r min ，粒度为- 120目，酸浸时间为5 . 0h ，硫酸浓度30 ，锌浮渣的浸出率大于92 . 0 ； 2 、在综合和比较了目前除锰和除铁的各种方法基础上，提出了过硫酸铵氧化除锰方法和选择了针铁矿-氧化水解联合法除铁方法，并分析和讨论了影响除锰率和除铁率等各种因素，确定了除锰的条件为：温度90 ， ph值5 . 4 ，反应时间3h ，过硫酸铵达到理论值的1 . 2倍，除锰率超过99 . 86 ；联合法除铁的条件为：氧化反应时间1 . 5小时、温度控制在90 92 、 ph值5 . 2 5

concentration of sulfuric acid meaning in Chinese

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