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

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.

Industrial companies often confront the challenge of excessive sulfur emissions, leading to environmental concerns and regulatory pressures. One effective solution is the use of calcium carbide as a desulfurizer.

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.

In the industries of metal processing, oil refining, and chemical manufacturing, achieving effective desulfurization is critical to product quality and environmental compliance. Calcium carbide, sourced from reputable calcium carbide suppliers like NEW OCEAN GROUP, offers a viable solution to combat sulfur emissions.

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.

Finding quality calcium carbide can be challenging, especially for overseas buyers and distributors. Many companies struggle with searching for reliable suppliers, ensuring product quality, and understanding import regulations. Calcium carbide is used in various applications, including steelmaking, producing acetylene gas, and manufacturing PVC.

The main component of carbide slag slurry is calcium hydroxide (Ca (OH) 2). Calcium carbide slag slurry is a gray brown turbid liquid.

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