Product Introduction
Low-sulfur, low-nitrogen graphitized petroleum coke is a high-purity synthetic graphite carbon material made from premium raw petroleum coke through a number of refined procedures. The product's quality is extensively adjusted by using ultra-high-temperature graphitization (at 2,800°C) in conjunction with multi-stage impurity removal, removing the shortcomings of conventional petroleum coke, such as high impurity levels and variable performance. The product has good core specifications: fixed carbon content is 98.5% or higher, sulfur content is tightly regulated between 0.03% and 0.05%, and nitrogen content is maintained at 100-250 ppm. It has a far higher overall purity than regular calcined petroleum coke or typical graphite coke. The material has a uniform and stable graphite crystal structure and provides excellent electrical conductivity, thermal conductivity, and high-temperature oxidation resistance. With its ultra-low impurity levels and consistent performance, it is an essential, eco-friendly, and high-efficiency carbon additive for industries such as precision steelmaking, specialty casting, new energy, and high-end metallurgy, fully meeting the stringent low-impurity standards required for high-end industrial production.
Method of Production
We use a standardized, completely enclosed production line. Every step is carefully monitored, from the input of raw materials to the delivery of the completed product. In order to avoid problems like excessive impurities or performance swings, we guarantee the fundamental characteristics of low sulfur, low nitrogen, and high purity straight from the source. The following particular steps make up the methodical and progressive production workflow:
- Step 1: Choosing Raw Materials
We reject any inferior supplies and only choose premium raw petroleum coke with consistent specs and few contaminants.
- Step 2: Impurity Removal and High-Temperature Calcination
A calcination furnace is used to treat raw materials at temperatures between 1,200 and 1,450°C. In order to maximize the raw material's basic qualities, this efficiently eliminates residual moisture, volatile matter, and the majority of organic contaminants. It also achieves an initial decrease in sulfur and nitrogen content while improving material density and carbon purity.
- Step 3: Core Process: Ultra-High-Temperature Graphitization
This crucial stage establishes the product's high purity, low nitrogen, and low sulfur qualities. After being calcined, the material is placed into a specialized graphitization furnace and fired for an extended period of time at extremely high temperatures (2,800–3,000°C). In order to achieve the fundamental benefit of ultra-low impurity levels, this technique completely reconstructs the interior carbon molecular lattice to create a stable, superior graphite crystal structure and profoundly breaks down and removes trace sulfur and nitrogen impurities.
- Step 4: Accurate Screening and Crushing
After graphitization, the final product is subjected to multi-layer screening and precision crushing utilizing specialized equipment to separate the material into different standard particle sizes, such as granules and fine powders. To completely satisfy the unique equipment and production needs of various clients, custom specifications are also offered.
- Step 5: Quality Inspection and Screening in Multiple Stages
Secondary de-ashing and impurity removal are applied to semi-finished items. To closely monitor each batch's quality, we simultaneously evaluate all essential indicators, such as fixed carbon, sulfur, nitrogen, ash content, and volatile matter. Any product that doesn't live up to expectations is rejected and can't move on to the next round of manufacturing.
- Step 6: Storage and Sealed Packaging
To successfully avoid problems like moisture absorption or secondary contamination during transportation and storage, all authorized finished products are packed in dust-proof and moisture-proof packaging. To guarantee constant quality upon shipping, finished items are handled through orderly categorization and kept in a dry, temperature-controlled warehouse.
Application Domains
Steelmaking and Metallurgy: Suitable for electric arc furnace (EAF) procedures, this high-efficiency recarburizer is the favored method for producing high-end steel. It makes it possible to precisely and steadily regulate the amount of carbon in molten steel, improves the mechanical qualities and purity of steel, successfully lowers faults caused by impurities, and guarantees the quality of premium steel products.
The foundry industry produces a wide range of precision castings, gray iron, and ductile iron. It increases the casting's toughness, hardness, and wear resistance by encouraging the consistent precipitation of graphite. It increases the yield rate of high-quality castings by considerably reducing common quality problems including porosity, cracking, and internal looseness.
New Energy and Carbon Materials: Used as a high-end raw material to make carbon goods such conductive pastes, graphite electrodes, and crucibles. It is also often utilized in the manufacturing of auxiliary materials for new energy batteries and high-temperature carbon goods because of its superior electrical conductivity and high-temperature thermal stability.
Chemical and Refractory Industries: It is frequently utilized in the manufacturing and processing of carbon additives and premium, high-temperature refractory materials for the chemical industry. In addition to providing steady performance and resistance to erosion and high temperatures, the material efficiently prolongs the service life of refractory equipment and lowers maintenance and replacement expenses.
Product Parameter(Specification)
| Item | Fixed Carbon | Sulfur | Ash | Volatile Matter | Nitrogen | Moisture |
| (%min) | (%max) | (%max) | (%max) | (max) | (%max) | |
| ZC-GPC-01 | 98.5 | 0.03 | 0.7 | 0.8 | 200ppm | 0.5 |
| ZC-GPC-02 | 98.5 | 0.05 | 0.7 | 0.8 | 300ppm | 0.5 |
| ZC-GPC-03 | 98.5 | 0.15 | 0.7 | 0.8 | 300ppm | 0.5 |
| ZC-GPC-04 | 98.5 | 0.3 | 0.7 | 0.8 | 500ppm | 0.5 |
| ZC-GPC-05 | 98.5 | 0.5 | 0.7 | 0.8 | 500ppm | 0.5 |
| Size: 0-0.2mm, 0.2-1mm, 1-5mm, 5-10mm or according to your requirement | ||||||
1-5mm Graphitized Petroleum Coke 5-10mm Graphitized Petroleum Coke
Packaging & Shipping
Packing Details:
25kg small bags into one jumbo bag or 1mt jumbo bag or 25kg bags only according to customers' requirements
Port: Tianjin Port, Qingdao Port
Leading Time: Shipped in 15-30 days after payment
Product Qualification
Deliver,shipping and serving
1. We prefer payment through T/T, L/C, D/P; Western Union and Paypal are also workable.
2. By courier, like DHL, UPS, Fedex. That is door to door, usually, 5-7 days to arrive.
By air transport, usually, 3-4 days to arrive.
By sea transport, usually, 15-30 days to arrive.
If your delivery time is urgent, we recommend you choose express or air freight. This applies to samples or small batches of goods.
If your delivery time is not very urgent, we recommend you choose sea transportation, it is very cheap.
FAQ
Hot Tags: low sulfur and low nitrogen graphitized petroleum coke, China low sulfur and low nitrogen graphitized petroleum coke manufacturers, suppliers, factory, graphitized petroleum coke consistent graphitized petroleum coke, graphitized petroleum coke improved product, graphite petroleum coke exporter, graphitized petroleum coke postmodern graphitized petroleum coke, graphite petroleum coke for abrasives, high carbon graphitized petroleum coke
