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What is the Process of Producing Expanded Vermiculite?

2026-01-09

Latest company news about What is the Process of Producing Expanded Vermiculite?

Hello, valued readers! We are Zhengzhou Hengyang Industrial Co., Ltd., a leading manufacturer in the world of expanded vermiculite. In this blog post, we will walk you through the fascinating process of producing expanded vermiculite — a material highly sought after in the fields of agriculture, construction, and more.

Production Process of Expanded Vermiculite

The production process of expanded vermiculite is a carefully calibrated one that we’ve honed over years of experience. Let’s delve into the details:

  1. Mining: The process begins with the extraction of vermiculite from mines. This raw vermiculite contains water molecules trapped within its structure, which are key to the expansion process.
  2. Milling: After extraction, the vermiculite is carefully milled. This process helps to separate the layers of the mineral, preparing it for the crucial expansion stage.
  3. Expansion: The magic happens here. The milled vermiculite is subjected to extreme heat (around 800–1000°C). The trapped water molecules turn into steam, causing the vermiculite to expand. This results in the lightweight, fire-resistant, and highly absorbent product known as expanded vermiculite.
  4. Grading and Packaging: The expanded vermiculite is then graded according to particle size and packed for shipping.

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