From Supply Chain to Process Adaptation: Three Paths for Cost Reduction of Naphthalene in Dye Factories

"From Supply Chain to Process Adaptation: Three Paths for Cost Reduction of Naphthalene in Dye Factories"

Core content

1. Optimization of the procurement model

• Contract purchase: Lock in quarterly/annual prices to avoid the risk of crude oil fluctuations (the correlation between refined naphthalene prices and petroleum coke is 0.7);

• Graded procurement: For non-critical dye products (such as low-end direct dyes), industrial naphthalene can be mixed (with a proportion of ≤20%).

2. Cost reduction through process adaptation

• Refined naphthalene - industrial naphthalene compounding technology: Achieve 30% cost savings in indigo dyes through catalyst optimization (such as ZnCl₂ modification);

• Recycling: Distillation waste naphthalene (with a content > 85%) can be reused in the production of sulfur dyes.

3. Implicit cost control

• Logistics cost: Choose granular refined naphthalene (which can increase the loading capacity by 15% compared to flake form);

• Inventory management: JIT delivery (requiring the supplier to have regional warehousing capabilities).

Data support

The reduction in scheme cost applies to the type of dye