查询词典 ammonium carbonate

In the process of preparation of support, ammonium carbonate was found to be a better precipitant than ammonium hydroxide.

在此基础上研究了密偶催化剂的单一反应，得出各个组分对HC转化性能的影响规律，并且初步探索了NO抑制烷烃转化的机理。

Dust and fume escaping from the tank are washed with a small amount of aqueous ammonium carbonate.

从反应糟中逸出的粉尘和烟雾用少量碳酸氨水溶液洗涤。

Effects of usage of the ammonia and ammonium carbonate, separation temperature and reaction time on precipitation separation were studied.

在Zn(上标 2+)、Mn(上标 2+)、混合溶液中，通过加入过量的氨和碳酸氢铵，用沉淀法将Zn(上标 2+)、Mn(上标 2+)离子分离，并制备了ZnO和化学MnO2。

An enzyme that promotes the hydrolysis of urea to form ammonium carbonate.

核酸酶水解核酸的酶，如核酸内切酶和核酸外切酶

However, it is difficult to strip Fe from the loaded extractant, this will cause trouble to the U stripping with 50 g/L ammonium carbonate or sodium carbonate.

另外，由于负载的铁不能完全反萃，会给后续的碳酸铵反萃U带来麻烦。

Based on analysis on the dosage of sodium cyanide and research on its leaching mechanism in gold concentrate leaching,a new technique that the mixture of ammonium carbonate and ammonium hydroxide can reduce the dosage of sodium cyanide is put forward.

通过对氰化浸出过程氰化钠消耗情况分析，在进一步研究金精矿氰化浸出机理的基础上，提出了采用碳酸铵、氢氧化铵混合试剂降低氰化钠用量的新工艺。

Ginger beer and honey cookies are sometimes seavened by ammonium carbonate together with potassium carbonate.

姜汁啤酒和蜂蜜小甜饼有时也可用碳酸胺结合以碳酸钾发酵生产。碳酸胺盐通常是碳酸氨和氨基酸铵的混合物。

Fluosilicic acid,which is the byproduct from phosphate fertilizer factory,reacts with ammonium hydrocarbonate to obtain ammonium fluosilicate,then reacts with ammonium carbonate to form settled SiO 2,after filtration,water washing,drying and calcining,high purity SiO 2 with less than 10×10 -6 metal impurity and less than 10×10 -9 uranium and thorium respectively is made.

由磷肥厂副产氟硅酸同碳铵反应得氟硅酸铵，再和碳铵反应生成SiO2 沉淀，经过滤、水洗、干燥、煅烧得高纯SiO2 ，其金属杂质总含量小于 10× 10 -6，含放射性元素铀和钍各小于 10× 10 -9，通过实验获得了适宜的工艺条件，反应温度 70℃～ 80℃，反应时间 1 5h～ 2 0h ，配料比n(NH4HCO3 )∶n(NH4 2 SiF6 =4 4。

The back extraction of Am 3+,Pu,UO 2+ 2 and TcO - 4 with high concentration nitric acid, oxalic acid, sodium carbonate, ammonium carbonate respectively from different 30% TRPO/kerosene systems are studied.

研究了硝酸、草酸、碳酸钠和碳酸铵对 4种不同来源的TRPO/煤油中Am3 +，Pu ，UO2 2 +和TcO-4的反萃，观察了碳酸钠溶液反萃铀时的乳化现象，比较了上述 4种TRPO的红外光谱、裂解色谱。

In order to solve the problem of accumulation of phosphogypsum, which is a byproduct in the process of nitrophosphate production by freezing method, using phosphogypsum, ammonium carbonate and ammonia as raw materials, ammonium sulfate and calcium carbonate were prepared by double decomposition reaction, and the recycling utilization of sulfur resource was realized.

为了解决冷冻法硝酸磷肥生产中深度除钙副产磷石膏的堆积问题，以磷石膏、碳酸铵和氨水为原料进行复分解反应制备硫酸铵和碳酸钙，以实现硫资源的循环利用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。