Technology for Recycling PVC without Dioxin Emissions: July 1997

Technology for Recycling PVC without Dioxin Emissions: July 1997

Tohoku University has developed a technology for recycling PVC without dioxin emissions. This technology involves converting polyvinyl chloride (PVC) into valuable oxalic acid and benzoic acid through oxygen oxidation in an alkaline solution. This process completely prevents the formation of dioxins and other chlorine-containing compounds.

Overview of the Technology

1. **Processing Process**:
- Polyvinyl chloride is oxidized with oxygen in an alkaline solution.
- Converted into valuable oxalic acid and benzoic acid.
- Prevents the formation of dioxins and other chlorine-containing compounds.

2. **Features**:
- **Environmental Consideration**: A safe process that does not emit dioxins.
- **High Added Value**: Produces valuable chemical products with high economic value.

Significance of the Technology

The significance of this technology lies in converting waste polyvinyl chloride into valuable chemical products, achieving both waste reduction and resource utilization. The complete prevention of dioxin emissions significantly reduces environmental impact.

Future Prospects

- **Commercialization**: Commercializing this technology can provide a new option for PVC waste treatment.
- **Optimization of the Process**: Further optimization of the process can lead to more efficient and economical recycling.
- **Expansion of Applications**: Applying this technology to other waste treatments can improve overall waste management.

With the development of this technology, balancing environmental protection and resource recycling will advance, taking a significant step towards a sustainable society.