Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recovery process of magnesium oxide reducing slag
The invention discloses a recovery process of magnesium oxide reducing slag. The recovery process specifically comprises the following steps: (1) grinding and sieving the magnesium oxide reducing slag; (2) adding water; (3) introducing CO2 to carry out carbonization reaction; (4) filtering to obtain a reducing slag filtrate I and a reducing slag filter cake I respectively; (5) introducing steam into the reducing slag filtrate I for heating, and filtering again to respectively obtain reducing slag filtrate II and a reducing slag filter cake II; and (6) drying the reducing slag filter cake II, and then roasting, crushing and sieving to obtain the light magnesium oxide. According to the recovery process, the magnesium oxide reducing slag is combined with factory waste gas CO2 and cement, magnesium oxide in the magnesium oxide reducing slag is extracted by using CO2, and residual silicon dioxide and calcium oxide are prepared into cement clinker, so that the magnesium oxide reducing slag is fully utilized, and the effects of energy conservation and emission reduction are achieved.
本发明公开了一种氧化镁还原渣的回收工艺，具体包括以下步骤：(1)将氧化镁还原渣进行研磨，过筛；(2)加水；(3)通入CO2进行碳化反应；(4)过滤，分别得到还原渣滤液Ⅰ和还原渣滤饼Ⅰ；(5)向还原渣滤液Ⅰ中通入蒸汽加热，再次过滤，分别得到还原渣滤液Ⅱ和还原渣滤饼Ⅱ；(6)将还原渣滤饼Ⅱ进行烘干，然后焙烧，粉碎，过筛，得到轻质氧化镁。本发明回收工艺将氧化镁还原渣与工厂废气CO2和水泥结合起来，利用CO2提取出氧化镁还原渣中的氧化镁，并将剩余的二氧化硅和氧化钙制成水泥熟料，既使氧化镁还原渣得到了充分利用，同时又达到了节能减排的效果。
Recovery process of magnesium oxide reducing slag
The invention discloses a recovery process of magnesium oxide reducing slag. The recovery process specifically comprises the following steps: (1) grinding and sieving the magnesium oxide reducing slag; (2) adding water; (3) introducing CO2 to carry out carbonization reaction; (4) filtering to obtain a reducing slag filtrate I and a reducing slag filter cake I respectively; (5) introducing steam into the reducing slag filtrate I for heating, and filtering again to respectively obtain reducing slag filtrate II and a reducing slag filter cake II; and (6) drying the reducing slag filter cake II, and then roasting, crushing and sieving to obtain the light magnesium oxide. According to the recovery process, the magnesium oxide reducing slag is combined with factory waste gas CO2 and cement, magnesium oxide in the magnesium oxide reducing slag is extracted by using CO2, and residual silicon dioxide and calcium oxide are prepared into cement clinker, so that the magnesium oxide reducing slag is fully utilized, and the effects of energy conservation and emission reduction are achieved.
本发明公开了一种氧化镁还原渣的回收工艺，具体包括以下步骤：(1)将氧化镁还原渣进行研磨，过筛；(2)加水；(3)通入CO2进行碳化反应；(4)过滤，分别得到还原渣滤液Ⅰ和还原渣滤饼Ⅰ；(5)向还原渣滤液Ⅰ中通入蒸汽加热，再次过滤，分别得到还原渣滤液Ⅱ和还原渣滤饼Ⅱ；(6)将还原渣滤饼Ⅱ进行烘干，然后焙烧，粉碎，过筛，得到轻质氧化镁。本发明回收工艺将氧化镁还原渣与工厂废气CO2和水泥结合起来，利用CO2提取出氧化镁还原渣中的氧化镁，并将剩余的二氧化硅和氧化钙制成水泥熟料，既使氧化镁还原渣得到了充分利用，同时又达到了节能减排的效果。
Recovery process of magnesium oxide reducing slag
一种氧化镁还原渣的回收工艺
GUO JIANWEN (Autor:in) / ZHU GUANGDONG (Autor:in) / CHANG WENXUAN (Autor:in) / XIE JIANAN (Autor:in) / NIU LILI (Autor:in) / ZHU DENGQIANG (Autor:in) / LI YONGYAN (Autor:in)
18.05.2021
Patent
Elektronische Ressource
Chinesisch
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