Manufacturing method of Chloroacetone
Chloroacetone is an important raw material for the production of chemicals, which is widely used in the fields of pharmaceuticals, pesticides, spices and so on. This article will introduce the manufacturing method of chlorinated acetone, including raw material preparation, reaction process, post-treatment and so on.
I. Raw material preparation
The following raw materials are needed to manufacture chlorinated acetone: acetone, chlorine gas, sodium hydroxide. Among them, acetone is used as the main reactant, chlorine gas is used as a chlorinating agent, and sodium hydroxide is used as a catalyst.
2. Reaction process
1. Add acetone into the reaction kettle and turn on the stirrer to stir the acetone sufficiently.
2. Pass chlorine gas into the reaction kettle, control the speed of passing to make the chlorine gas react with acetone fully.
3. During the reaction, gradually add sodium hydroxide solution to adjust the pH value and promote the reaction.
4. Temperature and pressure should be controlled during the reaction to ensure the smooth progress of the reaction.
5. At the end of the reaction, stop passing chlorine gas, stop stirring, and leave it to stratify.
3. Post-treatment
1. Pour the reaction solution into a separatory funnel and separate the organic phase and aqueous phase.
2. Wash the organic phase with distilled water several times until neutral.
3. Dry the organic phase with anhydrous sodium sulfate and filter to remove the desiccant.
4. The organic phase is distilled and the fraction of chloroacetone is collected.
4. Precautions
1. In the manufacturing process, strictly observe the safety operation procedures to ensure the safety of personnel and equipment.
2. Control the reaction temperature and pressure to prevent uncontrolled reaction.
3. Handle the waste gas and waste water well to prevent environmental pollution.
All in all, the manufacture of chlorinated acetone needs to master certain chemical knowledge and technology, and at the same time, it needs to strictly abide by the safety and environmental protection requirements. Through reasonable process design and operation, high quality chlorinated acetone can be manufactured to provide good raw material guarantee for the production of downstream products.
