1. Preparation of hydrogen sulfide: Firstly, hydrogen sulfide (H2S) is prepared by reacting sulfur ore or ferrous sulfide with heat or catalysts under high-temperature conditions.Buske New Material Technology (Shandong) Co., Ltd

2. Oxidation of sulfur dioxide: Hydrogen sulfide (H2S) is converted to sulfur dioxide (SO2) through an oxidation reaction. This step is usually carried out in an oxidation reactor, using oxygen as the oxidizing agent, and a catalyst may be used to accelerate the reaction.

2H2S + O2 → 2SO2 + 2H2O

3. Preparation of urea: Ammonia (NH3) reacts with dichloromethane (CH2Cl2) to produce urea (H2NCONH2). This step can be conducted in a reactor, with heating and catalysts or solvents to speed up the reaction.

NH3 + CH2Cl2 → H2NCONH2 + HCl

4. Formation of sulfur dioxide urea: Sulfur dioxide (SO2) and urea (H2NCONH2) react in a reactor to produce sulfur dioxide urea (SO2(NH)2). This step is usually carried out at a certain temperature and pressure and may require the presence of a catalyst.

SO2 + H2NCONH2 → SO2(NH)2 + H2O

5. Separation and purification: The sulfur dioxide urea produced from the reaction needs to be separated and purified. This can be achieved through a series of physical or chemical processing steps, such as distillation, crystallization, filtration, etc.

These are the basic process steps for sulfur dioxide urea production. The actual process details may vary depending on the production process and equipment. When designing the process, factors such as safety, environmental protection, and economics should be considered, and relevant regulations and standards should be strictly followed.

Buske New Material Technology (Shandong) Co., Ltd specializes in the professional production of sulfur dioxide urea. Welcome to inquire. 

Email: buske@buskesd.com,

Phone: +86 0546-8270002.