The Perilous Autumn for Organic Peroxides: Safety Concerns Rise Amid Recent Explosions
Aug 23, 2024|
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Ava, the team leader of Evergreen Chemicals OP expert database and the brand director of Nouryon, participated in the drafting of OP safety standards and is well versed in the global supply relationship of peroxides.
AVA
Nouryon Brand DirectorAs the Chinese lunar calendar marks the beginning of autumn, with cooler mornings and evenings, this change in weather brings good news for the storage of peroxides. However, amid the lingering aftermath of the TBPB explosion at Ningbo Port, a new incident has occurred in Gansu Province. An explosion and subsequent fire broke out in the initiator workshop of Ningxia Shunbangda New Materials Co., Ltd. The rescue mission has concluded, and all five missing individuals have been found, unfortunately, none of them showing any signs of life. As we mourn the loss of these lives, it is crucial that we maintain a deep respect for organic peroxides and continually elevate our awareness of safety.
A look at the Ningxia Shunbangda New Materials Co., Ltd. website reveals that their peroxide products are primarily used in the PVC industry. Today, let's discuss the organic peroxides related to the PVC sector:
Temperature Control:
Organic peroxides associated with PVC often require precise temperature control, typically not at 0°C like TBPO or BCHPC, but at temperatures as low as -15°C.
Mainstream Peroxides:
The key organic peroxides used in the PVC industry include TAPP, TBPP, EHP, CNP, and BNP.
Major PVC Consumers:
The downstream users of these peroxides are generally large PVC manufacturers, such as Zhongtai Chemical in Xinjiang, Hong Sifang Chemical, and Inner Mongolia Junzheng Group.
Procurement Practices:
Due to the large and concentrated usage of PVC peroxides by individual clients, procurement is typically handled through a bidding process. Suppliers on the shortlist are awarded contracts and deliver the required quantities according to a predetermined schedule.
Preferred Suppliers:
Major process licensors in the PVC industry often designate suppliers like Nouryon, Arkema, and NOF Corporation as the preferred sources for these peroxide materials. Despite the profitability, many domestic factories have also entered the competition by producing similar initiators.
Production Risks:
The production of organic peroxides for PVC is inherently dangerous and requires strict temperature control. This necessitates high standards for equipment such as blowers and ice machines.
