Research on manufacturing methods of potassium salts
Abstract
This paper investigates the manufacturing methods of potassium salts in the field of raw materials for the production of chemicals. By comparing and analyzing different manufacturing methods, the most suitable scheme for industrial production was determined. The experimental results show that the scheme is easy to operate, low cost, and high purity of the product, which has a good application prospect.
I.Introduction
Potassium salt is an important chemical raw material, widely used in food, medicine, agriculture and other fields. With the growing market demand, it is of great significance to study the manufacturing method of potassium salt to improve the production efficiency and reduce the cost. The aim of this paper is to explore a manufacturing method of potassium salt suitable for industrialized production.
II. MATERIALS AND METHODS
1. MATERIALS
The main raw materials needed for the experiment include potassium chloride, sodium carbonate, water and so on.
2. Equipments
The experimental equipments include stirrer, reactor, centrifuge, dryer and so on.
3. Manufacturing method
(1) Method 1: Compound decomposition method is used. Mix potassium chloride and sodium carbonate in a certain proportion, add appropriate amount of water, and carry out the reaction under stirring conditions to produce potassium carbonate and sodium chloride. After the reaction is completed, the solid product is separated by centrifugation, and the potassium salt is obtained by washing and drying.
(2) Method 2: Electrolysis is used. Dissolve potassium chloride in water and pass it into direct current for electrolysis to generate potassium hydroxide and hydrogen gas. After completion of electrolysis, the potassium hydroxide solution was concentrated, crystallized and dried to obtain potassium salt.
III. RESULTS AND DISCUSSION
1. RESULTS
(1) Method 1: Through experiments, we came up with the optimum feeding ratio of potassium chloride: sodium carbonate: water = 1: 1.1: 5. Under this condition, the reaction temperature was 80°C and the reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The reaction time was 2 h. The product was centrifuged, washed and dried to obtain potassium salt with 98% purity.
(2) Method 2: The electrolysis method consumes a large amount of electrical energy and has a high cost. Meanwhile, the hydrogen gas generated during the electrolysis process needs to be properly disposed of to avoid safety hazards. Therefore, method I is more suitable for industrialized production from the economic and safety point of view.
2. DISCUSSION
(1) In the process of manufacturing potash salt by the complex decomposition method, the reaction temperature, time and feeding ratio have an important influence on the purity and yield of the product. Through experimental optimization, we determined the best process parameters and improved the product purity.
(2) Although potassium hydroxide can be obtained directly by the electrolysis method, the energy consumption is high and the safety issue needs to be emphasized. Therefore, in the actual production, the appropriate manufacturing method should be selected according to the specific situation.
IV.CONCLUSION
In this study, by comparing and analyzing the two potassium salt manufacturing methods, it is concluded that the complex decomposition method is more suitable for industrial production. The method is easy to operate, inexpensive, and has high product purity, which has a better application prospect. In the actual production process, the process parameters can be further optimized according to the specific needs and conditions to improve the production efficiency and economic benefits.
