44. An energy-saving device for producing methyl ethyl carbonate (ZL202422165246.6)[2025/7/10]

43. A device for treating methyl ethyl carbonate film (ZL202421954362.X).[2025/7/10]

42. A device for continuously producing dibutyl carbonate (ZL202422186044.X)[2025/7/10]

41. A solid-liquid separation device for dimethyl carbonate production.(ZL202421953841.X)[2025/7/10]

40. A high-temperature drying oven for dimethyl carbonate production (ZL202411545614.8)[2025/7/10]

39. A device for the production of dimethyl carbonate (ZL202420738748.0)[2025/7/10]

38. A primary recovery device for vinyl carbonate waste liquid (ZL202420009027.6)[2025/7/10]

37. A device for refining electronic-grade cyclic carbonate (ZL202420009011.5)[2025/7/10]

36. A new distillation column (ZL202420145533.8) for the production of dimethyl carbonate by transesterification.[2025/7/10]

35. A device for preparing electronic grade dimethyl carbonate by crystallization (ZL202420008995.5).[2025/7/10]

34. An energy-saving device (ZL202321776269.X) for rectifying ethylene carbonate by negative pressure method.[2025/7/10]

33. Recovery and control device of ammonia gas, a by-product of propylene production from urea (ZL202321776258.1)[2025/7/10]

32、Recovery and control device of by-product ammonia gas from propylene production by urea method（ZL202321776258.1）[2024/4/15]

31、Device for synthesizing dimethyl carbonate by immobilized catalyst（ZL202321776259.6）[2024/4/15]

30、Device for separating azeotrope of methanol and dimethyl carbonate by membrane separation coupling crystallization method（ZL202321776266.6）[2024/4/15]