The difference between carbide method and ethylene method

The two methods of PVC production are calcium carbide method and ethylene method. What is the difference between them?


1. Different cost determining factors

The cost of PVC produced by calcium carbide method depends on the electricity price, and the higher the electricity cost, the higher the production cost.

The cost of PVC produced by ethylene method is directly linked to international crude oil prices, and fluctuations in oil prices will directly affect its price.


2. Significant differences in quality

PVC produced by the calcium carbide method has a moisture content 4-5 times higher than that produced by the ethylene method, and there are also 3 times more impurities,

This means that PVC produced by ethylene method has higher purity and more stable product quality.

Especially for high-end products, ethylene method is a better choice


3. Molecular weight distribution affects performance

The molecular weight distribution of PVC produced by calcium carbide method is wider

Resulting in higher thermal stability, mechanical properties, and weather resistance compared to ethylene method.

Vinyl PVC is more resistant to high temperature and aging, suitable for outdoor construction or harsh environment.


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Relate News

Calcium carbide is a crucial compound widely utilized in various industries, particularly in mining and steel production. As a powerful reducing agent and source of acetylene, it plays an essential role in the production process of many metallurgical applications.

The debate between the ethylene process and the calcium carbide process for PVC production is more critical than ever, particularly as manufacturers seek to optimize costs and enhance product quality. Users often ask, "Which process is more efficient and cost-effective?” or “What are the environmental impacts of these methods?”

Carbide is used in different industries and applications including: (1) Production of acetylene The reaction of calcium carbide with water, producing acetylene and calcium hydroxide.

Calcium Carbide is also called calcium acetylide, which is a chemical compound having the chemical formula of CaC2. Mainly, it is used industrially for the production of calcium cyanimide and acetylene and Ethylene.

Calcium carbide is essential for mining and construction. This chemical compound enables the generation of acetylene gas, which is crucial for various industrial processes. In mining, it aids in carbide lamps that provide illumination in dark tunnels.

In recent years, calcium carbide has gained prominence as a critical compound in various industries, particularly those involving chemical manufacturing and agriculture. As a leading calcium carbide supplier, NEW OCEAN GROUP recognizes the significance of calcium carbide's emergence in solving challenges in these sectors.

Polyvinyl chloride (PVC) is one of the most widely used synthetic plastic polymers, commonly produced through two main methods: the calcium carbide method and the ethylene method. This article provides an in-depth comparative analysis of both approaches, focusing on their advantages, disadvantages, and suitable applications.

Calcium carbide plays a vital role in the steel industry, primarily used for the production of acetylene gas and as a desulfurizing agent in steelmaking. Understanding the pricing dynamics of calcium carbide is essential for steel manufacturers and suppliers who are looking to optimize their production costs.

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