The synthesis column is designed to produce melt synthesis. It is a forged vessel made of carbon steel. The inside of the reactor vessel is lined with chrome nickel-molybdenum steel.In the lower part are mounted - a mixer (for better mixing of incoming reagents) and a packing for longitudinal sectioning (to exclude longitudinal and transverse mixing of the reaction mixture).To increase the degree of carbon dioxide conversion, 15 mass transfer plates were mounted along the entire height.At the top of the reactor is equipped with a lid for inspection and repair of the lining.There are a number of openings purged with nitrogen to monitor the condition of the lining joints.