Manufacturing Method of Zinc Carbonate Basic
Zinc carbonate basic is an important inorganic chemical, widely used in rubber, plastics, ceramics, glass, medicine, pigment and other fields. There are various production methods of zinc carbonate basic, this article mainly introduces the method of generating zinc carbonate basic by carbonation reaction with zinc sulfate as raw material.
I. Raw materials and equipment
1. Raw materials: zinc sulfate, sodium bicarbonate, activated carbon.
2. Equipment: reactor, stirrer, filter, dryer, packaging machine.
2. Manufacturing steps
1. Ingredients: add zinc sulfate, sodium bicarbonate into the reactor according to a certain proportion, and add appropriate amount of activated carbon as decolorant.
2. Stirring and reaction: Turn on the stirrer to make the raw materials fully mixed in the reaction kettle, and control the reaction temperature within a certain range to carry out the carbonation reaction to generate basic zinc carbonate.
3. Filtration and washing: After the reaction, separate the product from the mother liquor by filter and wash the product with water to neutral.
4. Drying: The washed product is placed in a desiccator and dried to constant weight at a suitable temperature.
5. Packing: Pack the dried zinc carbonate basic according to the requirements.
3. Precautions
1. Strictly control the reaction temperature to avoid too high or too low temperature affecting the product quality.
2. In the process of filtration and washing, make sure the product is washed sufficiently to avoid the residual mother liquor or impurities affecting the product quality.
3. Drying temperature and time should be controlled during drying process to avoid overheating of the product or too long drying resulting in product performance degradation.
Four, product quality and standard
The zinc carbonate base produced should comply with the quality indexes stipulated in the relevant industry standards, such as "Industrial Zinc Carbonate Base" HG/T 2572-2012, such as appearance, purity, particle size and so on.
V. Safety and environmental protection
1. In the production process, strictly follow the safety operation regulations to ensure the safety of employees and equipment.
2. Strengthen the ventilation and dust prevention measures at the production site to reduce the concentration of dust and minimize the impact on the environment and employees' health.
3. Effectively treat the wastewater, waste gas and other pollutants generated in the production process to ensure that they are discharged according to the standards and protect the environment.
VI. Optimization and improvement
In order to further improve the production efficiency and product quality of zinc carbonate basic, the production process can be optimized and improved, such as:
1. Adopt more advanced mixing equipments and mixing technology to improve the mixing uniformity and mass transfer efficiency.
2. Optimize the reaction temperature and time to improve the reaction rate and product purity.
3. Adopt more efficient filtration and drying equipment to improve production efficiency and product quality.
4. Strengthen the automation and intelligent control of the production process to improve production stability and efficiency.
In short, the production process of zinc carbonate basic needs to focus on the detailed management of raw material selection, equipment configuration, operation steps, quality control and other aspects to ensure product quality and production safety. At the same time, continuous optimization and improvement of the production process can improve production efficiency and reduce production costs, creating greater economic and social benefits for the enterprise.
