Methyl isobutyl ketone (MIBK) is an important organic chemical raw material, widely used in coatings, inks, adhesives, cleaning agents and other fields. In this paper, we will introduce the manufacturing method of Methyl Isobutyl Ketone, including raw material preparation, reaction process, and post-treatment.
I. Raw material preparation
The manufacture of methyl isobutyl ketone requires the preparation of the following raw materials: acetone, methanol and sulfuric acid. Among them, the ratio of acetone and methanol is 1:1.2, and the amount of sulfuric acid is 10% of the mass of acetone.
II. Reaction process
1. Mix acetone and methanol, add sulfuric acid catalyst, and stir well.
2. Heat the mixture to 60-70°C and keep the temperature for reaction for 2-3 hours. During the reaction, constant stirring is required to prevent the material from settling.
3. At the end of the reaction, the reaction solution was cooled to room temperature, and then phase separation was carried out to obtain the crude product of methyl isobutyl ketone.
3. Post-treatment
1. The crude product of methyl isobutyl ketone is washed with water to remove the acid and water in it.
2. After the end of water washing, dry with anhydrous magnesium sulfate and filter to get pure methyl isobutyl ketone.
4. Precautions
1. During the manufacturing process, the reaction temperature and time should be controlled to prevent the occurrence of by-products.
2. The dosage of sulfuric acid catalyst should be appropriate, too much will lead to corrosion of equipment and generation of waste residue, too little will affect the reaction efficiency.
3. In the post-treatment process, the purity of Methyl Isobutyl Ketone should be guaranteed to avoid affecting its usage effect.
In conclusion, the manufacture of methyl isobutyl ketone requires strict control of the ratio of raw materials, reaction conditions and post-treatment process to ensure the quality and purity of the product. At the same time, attention needs to be paid to safe production and environmental requirements to ensure the sustainability and stability of the manufacturing process.
