Low Sulfur Calcined Coke2026-07-11T09:49:56+08:00

Low Sulfur Calcined Petroleum Coke | High-Purity Low-S CPC for Battery & Graphite Electrode

Low Sulfur Calcined Coke

Low Sulfur Calcined Petroleum Coke

Calcined Petroleum Coke (CPC) is produced by high-temperature treatment of green petroleum coke to remove volatiles and impurities. It has high fixed carbon, low resistivity and stable carbon structure, widely used as core carbon raw material for aluminum, metallurgy, new energy and refractory industries. We supply low-sulfur and medium-sulfur calcined coke with stable batch indexes, supporting customized specifications and large export orders for global manufacturers.

Standard Technical Parameter Range

Test ItemNormal Specification Scope
Fixed Carbon≥98.8%
Total Sulfur≤0.5%
Ash Content≤0.5%
Volatile Matter≤0.4%
Real Density2.08–2.15 g/cm³
Usable Particle Sizes0–1mm, 1–3mm, 3–5mm, custom powder sizes

Production Process Highlights

Low-sulfur green coke raw material screening—We only select qualified low-sulfur green coke, strictly excluding high-sulfur impurities to lay the foundation for finished low-sulfur indicators.

Precise rotary kiln calcination—Constant temperature control at 1250–1350℃ fully removes volatiles, optimizes carbon crystal structure, and improves conductivity.


Crushing, sieving, and grading—Multiple layers of screening to produce uniform granularity as per customers’ technical drawing requirements.


Multi-index lab testing—Each batch detects sulfur, ash, and density; unqualified products will be reprocessed before delivery.


Sealed export packaging—Moisture-proof bulk bags and container loading to avoid secondary pollution during transportation.

Core Application Fields

  • Lithium-ion battery anode graphitization

  • Ultra-high power graphite electrode manufacturing

  • High-end casting & precision carburizer

  • High-grade special carbon products

Product Advantages

Strict low-sulfur index control

Stable sulfur ≤0.5% for every batch, consistent indicators without large fluctuations.

Ultra-low ash & high carbon purity

Low impurity content meets strict standards of new energy and high-end carbon industries.

Fully customizable parameters

Adjust particle size, sulfur threshold and density to match clients’ graphitization and baking process.

Stable mass supply & complete test certificates

Large production capacity supports long-term bulk orders; COA inspection reports are attached for every shipment.

Related Product Categories

Compare with our medium-sulfur calcined petroleum coke for conventional aluminum and silicon smelting production. Return to Calcined Petroleum Coke category page to view all CPC grades.

service related FAQ’s

What is petroleum coke used for?2026-07-01T11:57:02+08:00

Petroleum coke is a vital carbon raw material widely used in aluminum smelting, steelmaking, lithium battery anode production, industrial silicon, refractory materials and foundry industries.

What is the difference between green coke and calcined coke?2026-07-01T11:58:54+08:00

Green petroleum coke is raw uncalcined coke with higher volatile content, while calcined coke is high-temperature processed for stable carbon structure, low volatility and better conductivity.

What industries benefit most from your petroleum coke products?2026-07-01T12:01:12+08:00

Our products serve aluminum electrolysis, steel smelting, lithium new energy, graphite processing, industrial silicon and casting industries.

What is your delivery time for petroleum coke orders?2026-07-01T14:03:29+08:00

With sufficient stock and stable supply channels, we support fast container loading and timely delivery for global clients.

What grades of petroleum coke do you supply?2026-07-01T11:58:45+08:00

We provide low-sulfur and medium-sulfur green petroleum coke, as well as low-sulfur and medium-sulfur calcined petroleum coke for diverse industrial needs.

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Baoxinshengyuan New Material

Sichuan Baoxinshengyuan New Material Technology Co., Ltd. was established in July 2021 and is headquartered in Sichuan Province, China. As a comprehensive technology enterprise specialized in petroleum coke and new carbon materials, we integrate product production, quality control and customized solution services as one integrated system.

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