Manufacturing Method of Sodium Percarbonate
Sodium percarbonate, also known as 2-hydroxy-2-ethyl-1,3-dioxolane-2-carbonate, is an important raw material for the production of chemicals, which is widely used in the fields of washing, bleaching and oxidizing. This article will introduce the manufacturing method of sodium percarbonate.
I.Manufacturing principle
The manufacturing principle of sodium percarbonate is mainly to combine sodium carbonate with hydrogen peroxide through chemical reaction to form sodium percarbonate. The specific chemical equation is:
2Na2CO3 + 3H2O2 → 2Na2CO3-3H2O2
II. Manufacturing process
1. Dosing
Add the required sodium carbonate and hydrogen peroxide into the dosing tank according to a certain proportion, and add appropriate amount of stabilizer and water at the same time.
2. Reaction
In the reaction kettle, add the materials in the dosing tank, control a certain temperature and pressure, and carry out the reaction. Stirring is required during the reaction process to ensure the uniformity of the reaction.
3. Crystallization
After the reaction is completed, the material is cooled and crystallized to obtain sodium percarbonate crystals.
4. Centrifugal separation
The crystallized material is centrifuged to separate the sodium percarbonate crystals and mother liquor.
5. Drying
The separated sodium percarbonate crystals are dried to obtain the final product.
III. Manufacturing equipment
The main equipment for manufacturing sodium percarbonate includes dosing tank, reaction kettle, crystallization tank, centrifuge, dryer and so on.
4. Precautions
1. During the manufacturing process, temperature and pressure need to be strictly controlled to ensure the safety of the reaction and the quality of the product.
2. Hydrogen peroxide has strong oxidizing property, so it is necessary to pay attention to safe operation and avoid contact with flammable and explosive substances.
3. In the drying process, proper temperature and air volume need to be controlled to avoid decomposition and deterioration of the product.
V. Application Fields
Sodium percarbonate, as an important raw material for chemical production, is widely used in the following fields:
1. Detergent: Sodium percarbonate can be used as an oxidizing agent in detergent to effectively remove stains and odors from clothes.
2. Bleaching agent: Sodium percarbonate can be used in the bleaching of paper, fabrics and other items, with good bleaching effect and stability.
3. Oxidizing agent: Sodium percarbonate can be used as oxidizing agent in water treatment, metal surface treatment and other fields.
In short, as an important raw material for the production of chemicals, sodium percarbonate has a wide range of application prospects. In the manufacturing process, the process conditions and equipment requirements need to be strictly controlled to ensure the quality and safety of the product.
