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[Chemical Knowledge]：Production and manufacturing method and process flow of hexachloroacetone

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The manufacturing method
of hexachloroacetone
hexachloroacetone is an important raw material for chemical production, which is widely used in medicine, pesticide, dye and other fields. This article will introduce the manufacturing method of hexachloroacetone, including raw material preparation, reaction process, post-treatment and so on.

1. raw material preparation

manufacturing hexachloroacetone need to prepare the following raw materials: acetone, chlorine. Among them, acetone should be analytical reagent, chlorine gas should be industrial grade chlorine gas.

2. Reaction Process

1. Add acetone to the reaction kettle and turn on the stirrer to keep the stirring speed constant.
2. Into the chlorine gas, control into the speed, so that the reaction temperature in the appropriate range.
3. During the reaction, it is necessary to constantly monitor the pH value and chlorine content of the reaction solution to ensure the progress of the reaction.
4. when the chlorine content in the reaction solution reaches a certain value, the chlorine gas is stopped and stirred for a period of time to complete the reaction.

3. post-treatment

1. the reaction liquid is poured into a separatory funnel, and is allowed to stand for layering, and the lower acidic waste liquid is separated.
2. The upper organic phase is washed with alkali until neutral, and then washed with distilled water several times until the washing solution is free of chloride ions.
3. The washed organic phase is subjected to vacuum distillation to collect the fraction within the specified temperature range, which is the product of hexachloroacetone.

4. Precautions

1. In the manufacturing process, the reaction temperature and chlorine rate should be strictly controlled to prevent the reaction from causing safety accidents.
2. When treating waste liquid, environmental protection requirements should be followed to avoid environmental pollution.
3. in the process of operation, should pay attention to personnel safety protection, wear protective equipment, avoid direct contact with toxic and harmful substances.

In short, the manufacturing process of hexachloroacetone requires strict control of reaction conditions and operating processes to ensure product quality and production safety. At the same time, it is also necessary to pay attention to environmental protection and personnel safety protection to ensure that the production process meets environmental protection and safety requirements.

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