Zhejiang Medicine's annual production of 4,065 tons of isoprene aldehyde, 6,500 tons of trimethylquinone, and 2,000 tons of MC products technical transformation and upgrade project

(Source: Jinghua Dabiantong)

Recently, projects such as the annual production of 4,065 tons of isovaleraldehyde, 6,500 tons of trimethylhydroquinone technical upgrade project (Changhai Biological Subsidiary), and the annual production of 2,000 tons of MC product project (Fangyuanxin Biomedicine) have been announced on relevant websites.

Annual production of 4,065 tons of isovaleraldehyde, 6,500 tons of trimethylhydroquinone technical upgrade

project (Changhai Biological Subsidiary)

Construction content: Isovaleraldehyde capacity enhancement: Renovation of the oxidation kettle in workshop 2118 and the distillation tower in workshop 2058, addition of an isovaleraldehyde distillation tower in workshop 2108, and optimization of the distillation process to stabilize output.

Trimethylhydroquinone capacity enhancement: Addition of a catalyst washing kettle, a plate and frame filter, a solvent recovery tower, and other devices in workshop 2158, enhancing reaction efficiency and capacity through catalyst washing activation.

Product application: Isovaleraldehyde is a key intermediate for vitamins E, A, and fragrances; trimethylhydroquinone is the core precursor for vitamin E.

Annual production of 2,000 tons of MC product project (Fangyuanxin Biomedicine)

Total investment: 130 million yuan, of which environmental protection investment is 1 million yuan.

Construction content: Utilizing existing workshops 2878, 2858, and 2848, employing automated control systems and continuous production processes, through hydrogenation, continuous distillation, and continuous crystallization processes, to produce 2,000 tons of MC products annually, supporting the entire industrial chain.

Distillation energy consumption optimization project (Fangyuanxin Biomedicine)

Total investment: 10 million yuan, of which environmental protection investment is 500,000 yuan.

Construction content: Relying on the existing factory building of workshop 2858, using high-temperature heat pump technology to recover residual heat from the distillation process to produce steam, generating 6.24 tons of steam per hour for wastewater recovery, treatment, and pre-recovery in workshop 2848, significantly reducing the use of primary steam.

Utilizing idle distillation towers to purify impurities in Changhai Biological products, with an annual production of 2,350 tons of tetrahydro linalool, achieving high-value utilization of by-products.

Product application: Tetrahydro linalool is an important raw material for high-end fragrances and vitamins E and A.

Zhejiang Pharmaceutical Co., Ltd. Changhai Biological Subsidiary and Zhejiang Fangyuanxin Biomedicine Co., Ltd. are both located in Lihai Street, Yuecheng District, Shaoxing City, and are the core entities under Zhejiang Pharmaceutical focusing on the research, development, and production of fine chemicals and biopharmaceutical intermediates.