研究了以氯氧化铋精矿为原料，制取次硝酸铋的工艺条件。
Technical conditions for preparing bismuth subnitrate with bismuth oxychloride concentrate as the raw material have been studied.
氯氧化铋经脱氯处理制备硝酸铋、再水解成次硝酸铋、转化成次碳酸铋和煅烧成氧化铋。
Bismuth chloroxide is used to prepare bismuth nitrate by removing chlorine, which transforms bismuth hyponitrate, then bismuth hypocarbonate and finally bismuth oxide by calcinations.
动力学研究表明，在硝酸硫胺沉淀结晶过程中，初级成核是主要的成核方式，当晶浆密度较高且过饱和度很低时，二次成核不能忽视。
Primary nucleation was the main nucleation mode in the precipitation process. However, secondary nucleation cannot be ignored when the slurry density is high, and the supersaturation is low.
探讨了在酸性介质中以硝酸铯作消电离剂，应用次灵敏线作为吸收线来测定常量钾的最佳条件、线性相关系数。
The conditions of determination are that we used cesium nitrate as eliminated electrolytic reagent in the acid medium and applied the subsensitive line as absorption line.
施用有机复肥使小白菜和茶叶的硝酸盐含量下降，番茄的次果率减少而贮藏期延长。
Applying with organic-inorganic fertilizer made nitrate content of cabbage and tea decrease, tomato less inferior fruits and longer shelf life.
试验组及对照组分别外用2%硝酸舍他康唑乳膏和2%硝酸咪康唑乳膏，每天2次，疗程4周。
Sertaconazole nitrate 2 cream and miconazole nitrate 2 cream were applied in the trial and control group respectively twice daily for 4 weeks.
通过对氯碱生产中一次盐水游离氯及有效氯含量分析方法的对比，确定了亚硝酸根离子对分析结果的影响。
After comparison of analysis methods of free chlorine and active chlorine, it confirmed the influences on analysis results from nitrite ion.
影响能见度的空气污染因子，不仅包括一次源，还应包括经由气-粒转化化学反应而产生的硫酸盐、硝酸盐等二次污染粒子。
Air pollution factors include sulfate or nitrate second particles derived from gas-to-particle transformation as well as original particles.
催化加氢还原硝酸盐生成氮气具有高效、无二次污染等特点，是一种应用前景良好的脱氮技术。
The catalytic hydrogenization process offers a practical approach to remove nitrate from water due to the high efficiency and the benefit free from secondary pollution.
B保水剂对尿素的保持效果8次淋溶后与C保水剂相近，对硝酸铵的保持效果介于其他两种保水剂之间。
The nitrogen holding capacity of SAP-B is similar to that of SAP-C after 8 rounds watering for urea, but it is moderate for ammonium nitrate.
本发明涉及一种从次氧化锌渣中采用湿法回收锌、铟的同时进一步回收铋、并制取碱式硝酸铋的方法。
The invention relates to a method for receiving zinc and indium, and further recovering bismuth from secondary zinc oxide slag.
本发明涉及一种从次氧化锌渣中采用湿法回收锌、铟的同时进一步回收铋、并制取碱式硝酸铋的方法。
The invention relates to a method for receiving zinc and indium, and further recovering bismuth from secondary zinc oxide slag.
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