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一、前言 镁砂指经过轻烧或重烧得到的氧化镁产品,分别叫作轻烧氧化镁(简称轻烧镁)和重烧氧化镁(简称重烧镁)。镁砂根据原料来源又分为天然镁砂和海水镁砂。天然镁砂是以天然菱镁矿石为原料生产的氧化镁产品。海水镁砂是以海水和卤水中的氯化镁为原料加工生产的氧化镁产品,故又叫作合成镁砂。 镁砂主要用作耐火材料工业的原料,还用于农业和其他工业方面。以重烧镁为基本原料生产的镁质耐火材料,主要用于钢铁工业。因此,钢铁工业的兴衰对镁砂的生产有重大影响。
I. Preface Magnesia refers to the products of light-burned or re-burned magnesia, which are called light-burned magnesia (abbreviated as light-burned magnesium) and re-burned magnesia (referred to as heavy-burnt magnesium) respectively. Magnesia according to the source of raw materials is divided into natural magnesia and sea magnesia. Natural magnesia is a magnesia product made from natural magnesite. Sea magnesia is magnesium chloride in seawater and brine in the production of magnesium oxide products, it is also known as synthetic magnesia. Magnesia is primarily used as a raw material in the refractory industry and also in agriculture and other industries. Magnesia refractories based on heavy-burned magnesium as a basic raw material are mainly used in the steel industry. Therefore, the rise and fall of the steel industry has a significant impact on the production of magnesia.