METHOD OF PRODUCING A SILICA AEROGEL AND A SODIUM CARBONATE

The invention relates to preparation of a silica aerogel and a sodium carbonate, in which compound containing sodium, material containing silica and carbon dioxide or sodium hydrogen carbonate are used as raw materials, comprising: reacting material comprising silica with compound containing sodium...

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Bibliographic Details
Main Authors YE, YANG, YE, TIANRUN
Format Patent
LanguageChinese
English
French
Published 28.08.2003
Edition7
Subjects
CHEMISTRY
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The invention relates to preparation of a silica aerogel and a sodium carbonate, in which compound containing sodium, material containing silica and carbon dioxide or sodium hydrogen carbonate are used as raw materials, comprising: reacting material comprising silica with compound containing sodium except for sodium carbonate to form sodium silicate, and then reacting sodium silicate with carbon dioxide or sodium hydrogen carbonate obtain silica aerogel and a sodium carbonate. The compound containing sodium are sodium hydroxide, mirabilite or sodium chloride. The material containing silica are quartz sand, quartz rock, silicolite, iron ore, kaolin, fly ash or coal gangue. L'invention concerne un procédé de préparation d'un aérogel de silice et de carbonate de sodium, dans lequel un composé contenant du sodium, une matière contenant de la silice et du dioxyde de carbone ou du carbonate d'hydrogène de sodium sont utilisés en tant que matières premières. Ce procédé de préparation consiste à faire réagir une mati
Bibliography:Application Number: WO2002CN00891