magnesia

英 [mæg'niːʒə; -zɪə; -ʃə] 美[mæg'niʒə]

1. a white solid mineral that occurs naturally as periclase; a source of magnesium

The application of Light burned magnesia and magnesium hydroxide to environmental protection is presented.: 介绍了轻烧氧化镁和氢氧化镁在环保领域中的应用现状.

Preparation of magnesia alumina spinel and its application in catalytic reaction were reviewed in this paper.: 综述了镁铝尖晶石的制备及其在催化反应中的应用.

The shortcomings of common magnesia chrome brick used in cement kiln have been analyzed.: 分析了普通镁铬砖在水泥窑上使用存在的不足之处.

Township enterprises have a paper, agricultural machinery bearings, magnesia and other plants.: 乡镇企业有造纸、农机轴承、镁砂等厂.

The magnesite graphite brick has a good slag resistance because the magnesia is the primary component.: 由于镁砂为主要成份,使该镁碳砖具有良好的抗渣侵蚀性能.

Moreover the opinions of the development of magnesia from water or brine in China are proposed.: 而且,提出了我国海水与卤水镁砂发展意见.

A substance , such as magnesia or sodium bicarbonate, that neutralizes acid.: 解酸的, 抗酸的,防酸的,中和酸的消除或中和酸度的, 尤其胃酸.

Magnesite deposits account for approximately 80 % of total magnesia production.: 大约80%的氧化镁产量来自菱镁矿.

A substanceas magnesia or sodium bicarbonate, that neutralizes acid.: 一种强的钠或氢氧化钾溶液.

The research and development of magnesia from sea water and brine in China are demonstrated.: 文章论证了我国海水和卤水镁砂的研究与开发.

Magnesia calcined from magnesite as raw material, superfine magnesium hydroxide has been produced by hydration.: 以菱镁矿煅烧所得氧化镁为原料, 水化制备超细氢氧化镁.

The characteristics of sea water and brine magnesia are described.: 详述了海水与卤水镁砂的特点.

China is rich in natural resources and has wide market prospect for producing magnesia carbon brick.: 我国发展镁碳砖生产有着丰富的原料资源和广阔的市场前景.

Resistance to slag relates to the content of magnesia powder and spinel.: 浇注料的抗渣性与镁砂含量和尖晶石含量有关.

The invention discloses a technology which reduces the jamming in a magnesia method desulfurization device.: 本发明公开了一种减少氧化镁法脱硫装置中堵塞的技术.

This power introduces simply processing of ammonium bicarbonate method to made light magnesia from serpentine.: 本文简要介绍了碳铵法从蛇纹石中提取轻质氧化镁的工艺过程.

These chrome free bricks include dolomite bricks, magnesia spinel bricks and magnesia calcium zirconate bricks.: 研究表明,用白云石砖、尖晶石砖、镁锆钙砖代替镁铬砖,符合碱性砖无铬化的发展趋势.

magnesia 氧化镁，镁砂

来自拉丁语magnesia,来自希腊语Magnesia lithos,即来自Magnesia的石头，lithos,石头，词源同lithology.Magnesia为古希腊地名，来自当地人的族名Magnetes.因石头中发现镁砂而得名。

1. The synthesis methods of magnesia - alumina spinel are electro - fusion and sintering process.: 镁铝尖晶石的合成方法有电熔法和烧结法.

2. Township enterprises have a paper, agricultural machinery bearings, magnesia and other plants.: 乡镇企业有造纸、农机轴承、镁砂等厂.

3. REVOLUTION IN DEVELOPMENT OF CHROME - FREE MAGNESIA - AND LOW CHROME HERCYNITE BRICKS.: 无铬镁砖和低铬铁尖晶石砖发展的革命.

4. A substance , such as magnesia or sodium bicarbonate, that neutralizes acid.: 解酸的, 抗酸的,防酸的,中和酸的消除或中和酸度的, 尤其胃酸.

5. Magnesite deposits account for approximately 80 % of total magnesia production.: 大约80%的氧化镁产量来自菱镁矿.

magnesia (n.): late 14c., in alchemy, "main ingredient of the philosopher's stone," from Medieval Latin magnesia, from Greek (he) Magnesia (lithos) "the lodestone," literally "(the) Magnesian (stone)," from Magnesia, region in Thessaly, which is said to be named for the native people name Magnetes, which is of unknown origin. The ancient word, in this sense, has evolved into magnet. But in ancient times the same word, magnes, was used of lodestone as well as of a mineral commonly used in bleaching glass (modern pyrolusite, or manganese dioxide).

In Middle Ages there was some attempt to distinguish lodestone as magnes (masc.) and pyrolusite as magnesia (fem.). Meanwhile, in 18c., a white powder (magnesium carbonate) used as a cosmetic and toothpaste was sold in Rome as magnesia alba ("white magnesia"). It was from this, in 1808, that Davy isolated magnesium. He wanted to call it magnium, to stay as far as possible from the confused word magnesia, but the name was adopted in the form magnesium. Meanwhile from 16c. the other name of pyrolusite had been corrupted to manganese, and when, in 1774, a new element was isolated from it, it came to be called manganese.

Magnesia in its main modern sense of "magnesium oxide" (1755) is perhaps an independent formation from Latin magnes carneus "flesh-magnet" (c. 1550), so called because it adheres strongly to the lips.