Manufacturing Method of Nickel Oxide
I. Introduction
Nickel oxide is an important raw material for the production of chemicals, which is widely used in ceramics, pigments, catalysts and other fields. In this paper, we will introduce the manufacturing method of nickel oxide, including raw material preparation, chemical reaction control, and product post-treatment.
II. Raw material preparation
The first step in manufacturing nickel oxide is to prepare raw materials. Usually, nickel oxide manufacturing requires nickel salt and alkaline absorbent. Nickel salt can choose nickel nitrate, nickel sulfate, etc., alkaline absorbent is commonly used sodium hydroxide, potassium hydroxide, etc.. In order to ensure product quality, it is necessary to choose raw materials with high purity.
Three, chemical reaction control
After preparing the raw materials, the next step is to control the chemical reaction process. The reaction principle of manufacturing nickel oxide is usually through the neutralization reaction between alkaline absorbent and nickel salt in aqueous solution, generating nickel hydroxide precipitate, and then after roasting to get nickel oxide. The reaction process needs to control the pH value, reaction temperature and time and other factors to ensure that the generated nickel hydroxide precipitate is high purity. After the reaction generates nickel hydroxide precipitation, it needs to be washed, filtered, dried and other post-processing steps, in order to get a pure nickel hydroxide product. The washing process needs to be repeatedly rinsed with pure water to remove the impurity ions remaining on the surface of the product; filtration is usually carried out using filter paper or filter cloth to ensure that the product has a uniform particle size; the drying process needs to control the temperature and time to prevent the product from agglomeration and deformation.
V. Roasting preparation of nickel oxide
After the post-treatment of nickel hydroxide products, also need to be roasted to prepare nickel oxide. Roasting process needs to control the temperature and atmosphere, usually need to be roasted at high temperatures to ensure that the complete decomposition of nickel hydroxide into nickel oxide. At the same time, it is also necessary to pass the appropriate amount of air or oxygen to ensure that the oxidation reaction in the roasting process.
VI. Precautions
In the manufacturing process of nickel oxide, it is necessary to pay attention to the following points: firstly, the selection and storage of raw materials to ensure its purity and quality; secondly, the reaction process needs to strictly control the pH value, reaction temperature and time and other factors to ensure that the reaction generates nickel hydroxide precipitates the purity and particle size; finally, the product post-treatment and the roasting process also need to control the appropriate conditions to ensure that the quality of the final nickel oxide product meets the requirements. The final quality of the nickel oxide product meets the requirements. VII.Conclusion
Nickel oxide, as an important raw material for the production of chemicals, needs to be manufactured through a number of control and processing. Through reasonable selection and storage of raw materials, strict control of chemical reaction, appropriate product post-treatment and roasting treatment, nickel oxide products with high purity and stable quality can be prepared, which can provide strong support for the application in related fields.
