Continuous catalytic hydrogenation
Amino-Chem develops continuous catalytic hydrogenation, in which dinitrobenzene and hydrogen are used as raw materials. It is a clean and low-cost process compared to the traditional batch catalytic hydrogenation process, in which the capacity is limited.
In 2003, Longsheng Group improved the batch catalytic hydrogenation equipment and achieved continuous catalytic hydrogenation of mixed dinitrobenzene. After separation, the end-products m-PDA, o- PDA and p- PDA are gotten simultaneously. The utilization of raw materials increases to about 97%. And the cost decreases by 20% than that of batch catalytic hydrogenation.
Amino-Chem developed the technology of catalytic hydrogenation to produce 3-amino-4-methoxyacetanilide, to solve the pollution issues of waste iron sludge and wastewater from the traditional iron powder reduction.
High pressure Hydrolysis
The company also developed a new hydrolysis process to produce resorcinol from m-PDA. These novel technologies simplify operation procedures, reduce investment in equipment, lower production cost and improve product quality.