On 5 Feb., the environmental impact report for the mannitol production line upgrading and transformation project of Qingdao Bright Moon Seaweed Group Co., Ltd. (BMSG) was publicized on a local environmental protection website.

Project overview

• Nature: Expansion & Technical Transformation
• Location: West Coast New Area, Qingdao City, Shandong Province
• Total investment: USD32.56 million (RMB233.42 million)
• Construction content:
  • The project will use the existing idle 1# Building and the existing Mannitol production workshop.
  • A total of 298 production and auxiliary equipment units will be newly purchased and installed, including crystallization tanks, crystallizers, simulated moving bed, MVR concentration systems, centrifuges, and fluidized bed dryers.
  • Among them, 80 units will be placed in the existing Mannitol production workshop, while the remaining 218 units will be placed in 1# Building.
• Product plan:
  • The existing Mannitol production workshop will maintain its current capacity of 6,000 t/a of mannitol and 4,542 t/a of 70% sorbitol.
  • Building No. 1 will add a new capacity of 4,000 t/a of mannitol and 3,028 t/a of 70% sorbitol
• Production process:
  • Use glucose as the raw material, which undergoes hydrolysis, epimerization, and enzymatic isomerization, followed by hydrogenation.
  • Raw and auxiliary materials include glucose, hydrochloric acid, sodium hydroxide, activated carbon, ammonium heptamolybdate (catalyst), methanol, Raney nickel (catalyst), cationic resin, anionic resin, calcium hydroxide, and sodium chloride.
• Labor force: 50 new employees
• Work system: Three 8hr shifts per day, 300 working days per year.
• Construction period: 15 months, with completion planned in Jun. 2026.

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