oxidized bitumen
Oxidized bitumen, also known as blown bitumen, is produced by introducing air into infiltration grades of bitumen. This process imparts rubbery properties to the bitumen, resulting in a harder consistency. Hard bitumen, when subjected to controlled temperature conditions, finds extensive application in various industries:
- Piling Industry: Hard bitumen serves as an anti-slip layer compound in the piling industry, ensuring secure and stable foundations for structures.
- Roofing and Waterproofing Industries: It is used in the production of roofing felts and is widely employed in the roofing and waterproofing industries. The durable nature of oxidized bitumen enhances the longevity and effectiveness of roofing systems.
- Sound Dampening Felts: Oxidized bitumen finds application in the manufacture of sound dampening felts, which are used to reduce noise transmission in buildings and automotive applications.
- Automotive Industry: It is utilized as an undercarriage sealant in the automotive industry, providing protection against moisture, dust, and corrosion. Additionally, it is employed in connecting electric cables.
- Joint Filler and Sealant Compound: Oxidized bitumen is also used as a joint filler compound and sealant compound in various construction and infrastructure applications. It effectively seals saw cuts and seams where minimal movement is anticipated.
- Bitumen Marine Mastic: In the oil and gas industry, oxidized bitumen is employed in the production of bitumen marine mastic, which is used to connect oil and gas pipelines, ensuring secure and reliable transportation.
These are just a few examples of the diverse applications of oxidized bitumen. Its unique properties make it a versatile material for various industries, offering protection, sealing, and adhesion capabilities.
The production of oxidized bitumen involves a controlled process of air blowing or oxidation of conventional bitumen. Here's a more detailed explanation of the process:
- Selection of Bitumen: The process begins with the selection of suitable base bitumen. Typically, bitumen with penetration grades of bitumen 60/70 or bitumen 80/100 is chosen as the starting material. These base bitumens are derived from crude oil through the refining process.
- Heating: The selected bitumen is heated in specially designed oxidation reactors or blowing stills. The temperature is carefully controlled to ensure optimal conditions for the oxidation process.
- Introduction of Air: Compressed air is introduced into the heated bitumen. The air is blown into the bitumen mass through a network of nozzles or diffusers. The air flow rate and pressure are regulated to achieve the desired level of oxidation.
- Oxidation: As the air is passed through the bitumen, it reacts with the hydrocarbons present in the bitumen. This oxidation process leads to the formation of complex chemical structures, which modify the physical properties of the bitumen. The reaction causes the bitumen to become harder and more rubbery compared to its original form.
- Monitoring and Control: During the oxidation process, various parameters such as temperature, air flow rate, and residence time are closely monitored and controlled. This ensures consistent and desired product characteristics.
- Cooling and Storage: Once the desired level of oxidation is achieved, the oxidized bitumen is cooled down using air or water. It is then stored in appropriate containers or tanks for further processing or distribution.
It's important to note that the specific details of the oxidation process may vary depending on the desired properties and applications of the oxidized bitumen. The process parameters can be adjusted to produce different grades or specifications of oxidized bitumen to meet specific industry requirements.
The resulting oxidized bitumen possesses enhanced hardness, improved resistance to temperature variations, and increased durability, making it suitable for a wide range of applications in industries such as construction, automotive, and infrastructure.
Candle making industry
Oxidized bitumen finds various applications in different industries, but it is not commonly bitumen usage in the candle industry. Its primary uses include anti-slip compound for underbody sealants in the automotive industry, manufacturing ceiling felts and sound dampening felts, and serving as a joint filler compound.
Furthermore, oxidized bitumen is utilized in the production of bituminous marine mastic, which is crucial for joints in oil and gas pipelines. It is available in different grades such as 95/25, 25/85, 25/75, 90/40, and 115/15. Additionally, customized oxidized bitumen grades can be produced to meet specific customer requirements.
Oxidized bitumen offers several advantages, including excellent water resistance, high flexibility, durability, and chemical stability. It is a versatile compound that exhibits exceptional technical properties, making it highly desirable for various applications.
The production process of oxidized bitumen involves several steps:
- Heating: Bitumen is heated to a temperature of 230-270 degrees Celsius.
- Transfer: The molten bitumen is transferred to the blowing towers.
- Blowing: Air is blown into the bitumen, initiating the oxidation process.
- Cooling: The molten bitumen is cooled using water.
- Packaging: The final product is packed for storage and distribution.
There are two main methods for producing oxidized bitumen:
- Continuous Blowing Method: This method involves a continuous process of blowing air into the bitumen.
- Discontinuous Blowing Method: In this method, the blowing process is performed intermittently, allowing for production with different grades. It offers simplicity and flexibility in changing the blowing mode.
Technical considerations and operational conditions play a crucial role in the production of oxidized bitumen. Key points include:
- Blowing should be performed from the bottom of the blowing tank.
- Controlling the reaction heat by injecting water.
- Air composition and blowing air volume are important factors.
- The suitable temperature for production is 265-270 degrees Celsius to prevent uncontrollable reactions and potential explosions.
- Bitumen should not be kept in the tower for an extended period and should be promptly transferred to drums or tankers.
- Maintaining appropriate liquid levels and temperatures in the blower tower to prevent ignition and system damage.
- Determining the final point of blowing through sampling and testing the bitumen properties.
- The product temperature should be maintained between 150 and 165 degrees Celsius for proper loading and packaging.
Using penetration bitumen 80 100 as a starting material for producing oxidized bitumen offers specific advantages and characteristics. Here are some considerations when using bitumen 80/100 for oxidized bitumen production:
- Consistency: Bitumen 80/100 refers to a penetration grade that indicates the hardness of the bitumen. It has a medium hardness, falling between softer grades like penetration bitumen 60 70 and harder grades like 100/120. Using bitumen grade 80/100 as a base ensures that the resulting oxidized bitumen maintains a balanced level of hardness, making it suitable for various applications.
- Oxidation Properties: Bitumen 80/100 has the appropriate chemical composition and molecular structure to undergo the oxidation process effectively. When air is blown through bitumen 80/100, it reacts and forms complex chemical structures, resulting in the desired rubbery properties of oxidized bitumen.
- Versatility: The use of bitumen 80/100 allows for the production of a range of oxidized bitumen grades. By adjusting the process parameters such as temperature, air flow rate, and residence time, it is possible to obtain oxidized bitumen with different characteristics and properties to meet specific industry requirements.
- Durability and Performance: Bitumen 80/100 is known for its durability and good performance in various weather conditions. When transformed into oxidized bitumen, these qualities are retained, ensuring that the resulting product offers enhanced durability, flexibility, and resistance to temperature variations. This makes it suitable for applications in the automotive, construction, and infrastructure industries.
- Cost-Effectiveness: Bitumen 80/100 is a commonly available grade, making it relatively cost-effective compared to other specialized grades. This makes it an attractive choice for oxidized bitumen production, providing a balance between performance and affordability.
It's important to note that the specific process parameters and conditions may vary depending on the desired properties and applications of the oxidized bitumen. By carefully controlling the production process, the desired characteristics of the oxidized bitumen can be achieved using bitumen 80/100 as the starting material.
ATDM CO is a reputable manufacturer and exporter of Bitumen 60/70 and 80/100Bitumen 80/100. We specialize in offering high-quality bitumen products in various packaging options, including drums, bags, and bulk quantities. Our product line consists of three distinct quality grades: premium, second, and third types. Each grade is produced with meticulous attention to detail, utilizing advanced facilities and processes.
Our diverse range of options is designed to cater to the specific needs and volume requirements of our customers. Whether you require a smaller quantity for a specific project or a larger bulk order, we have the flexibility to accommodate your demands.
At ATDM CO, we prioritize product quality, reliability, and customer satisfaction. Our bitumen 60/70 is manufactured to meet international standards, ensuring optimal performance and durability in various applications. Currently, we have supplies in three countries of the United Arab Emirates (Dubai), Panama and Singapore are available. We take pride in delivering exceptional products that meet the diverse needs of our valued customers, both domestically and internationally.