Indonesia OBI Deep-Sea Disposal Pipeline Project

1. Project Overview

• The OBI Nickel-Cobalt Project is a major nickel and cobalt processing project located in Indonesia. The project utilizes laterite nickel resources and advanced hydrometallurgical processing technology, with a dedicated pipeline system for deep-sea disposal.

• The application presented demanding requirements for wear resistance, corrosion resistance, pressure performance and long-term operational reliability, particularly under marine and slurry conditions.

2. Donghong Solution

• Wear-Resistant Composite Pipeline for Demanding Marine Conditions

• Donghong supplied a steel wire mesh reinforced polyethylene pipe with a wear-resistant inner layer for the deep-sea disposal pipeline.

• The composite structure combines the mechanical strength of reinforced steel wire mesh with the corrosion resistance and flexibility of polyethylene, while the specialized inner layer provides enhanced protection against abrasive slurry.

• This solution was selected to address the combined challenges of abrasion, corrosion and long-term service in a marine environment, providing a durable pipeline solution for demanding mining applications.

3. Product Highlights

Wear Resistant

Designed to withstand continuous abrasion from slurry containing solid particles, helping extend service life.

Corrosion Resistant

The polyethylene-based structure provides excellent resistance to seawater and corrosive process media.

High Strength

The reinforced structure provides enhanced mechanical and pressure-bearing performance for demanding pipeline applications.

Long Service Life

The combination of reinforced structure and wear-resistant materials reduces the effects of corrosion and abrasion during long-term operation.

Lightweight & Installation-Friendly

Compared with conventional steel pipelines, the composite structure offers lower weight and easier handling during transportation and installation.