轻烧镁粉和重烧镁粉是什么 What is light burned magnesium powder and reburned magnesium powder

     http://www.ykbhlm.com菱镁矿在不同温度下锻烧、熔融后可以生成主成分为氧化镁的轻烧镁、重烧镁和电熔镁砂。
     菱镁矿在750-1100温度下煅烧称“轻烧”，其产品称轻烧镁粉，简称为轻烧粉。轻烧镁粉主要制造胶凝材料，绝热和隔音的建筑材料，也可做陶瓷原料。
     重烧镁粉主要是以轻烧粉为原料，经水选、水解、固液分离、干燥、煅烧及粉碎，分级制得。生产重质氧化镁对轻烧氧化镁粉质量要求高。一般选用优质菱镁矿生产的高档粉，不应有受潮结块。

 Magnesite can be calcined and melted at different temperatures to produce light-burned magnesium, re-burned magnesium and fused magnesite whose main component is magnesium oxide.

      Magnesite calcined at a temperature of 750-1100 is called "light burning", and its product is called light burning magnesium powder, referred to as light burning powder for short. Light-burned magnesium powder is mainly used for making cementitious materials, heat-insulating and sound-proofing building materials, and also can be used as ceramic raw materials.

      Reburned magnesium powder is mainly made from lightly burned powder, which is obtained through water separation, hydrolysis, solid-liquid separation, drying, calcination and crushing, and classification. The production of heavy magnesium oxide has high requirements on the quality of light-burned magnesium oxide powder. Generally, high-grade flour produced by high-quality magnesite is used, and there should be no agglomeration due to moisture.