Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Waste carbon silica brick recovery process
The invention discloses a waste carbon silica brick recovery process, and relates to the technical field of carbon silica brick recovery, the waste carbon silica brick recovery process comprises the following steps: (1) re-using the uncorroded part of a waste carbon silica brick for manufacturing the carbon silica brick, and respectively carrying out coarse crushing and fine crushing on the corroded part to obtain carbon silica brick corrosion powder; (2) carrying out alkali washing on the silicon carbide brick corrosion powder by adopting alkali liquor, and filtering to obtain an alkali washing filter cake and an alkali washing filtrate; (3) washing the alkali washing filter cake for several times, filtering to obtain a washed filter cake and washed filtrate, and drying and crushing the washed filter cake to obtain a carbon silicon powder product; and (4) merging the alkali washing filtrate and the water washing filtrate, slowly adding calcium hydroxide until no precipitate is generated, washing a filter cake obtained by filtering for a plurality of times, and drying to obtain a calcium fluoride product.
本发明公开了一种废旧碳硅砖回收工艺，涉及碳硅砖回收技术领域，一种废旧碳硅砖回收工艺，包括如下步骤：(1)将废旧碳硅砖的未腐蚀部分重新用于碳硅砖制作，已经腐蚀的部分分别记性粗碎、细碎得到碳硅砖腐蚀粉末；(2)采用碱液将碳硅砖腐蚀粉末进行碱洗，过滤得碱洗滤饼和碱洗滤液；(3)再将碱洗滤饼水洗若干次，过滤得水洗滤饼和水洗滤液，将水洗滤饼干燥、粉碎制得碳硅粉产品；(4)将碱洗滤液和水洗滤液合并，缓慢加入氢氧化钙至沉淀不再产生，过滤所得滤饼水洗若干次后干燥得氟化钙产品。
Waste carbon silica brick recovery process
The invention discloses a waste carbon silica brick recovery process, and relates to the technical field of carbon silica brick recovery, the waste carbon silica brick recovery process comprises the following steps: (1) re-using the uncorroded part of a waste carbon silica brick for manufacturing the carbon silica brick, and respectively carrying out coarse crushing and fine crushing on the corroded part to obtain carbon silica brick corrosion powder; (2) carrying out alkali washing on the silicon carbide brick corrosion powder by adopting alkali liquor, and filtering to obtain an alkali washing filter cake and an alkali washing filtrate; (3) washing the alkali washing filter cake for several times, filtering to obtain a washed filter cake and washed filtrate, and drying and crushing the washed filter cake to obtain a carbon silicon powder product; and (4) merging the alkali washing filtrate and the water washing filtrate, slowly adding calcium hydroxide until no precipitate is generated, washing a filter cake obtained by filtering for a plurality of times, and drying to obtain a calcium fluoride product.
本发明公开了一种废旧碳硅砖回收工艺，涉及碳硅砖回收技术领域，一种废旧碳硅砖回收工艺，包括如下步骤：(1)将废旧碳硅砖的未腐蚀部分重新用于碳硅砖制作，已经腐蚀的部分分别记性粗碎、细碎得到碳硅砖腐蚀粉末；(2)采用碱液将碳硅砖腐蚀粉末进行碱洗，过滤得碱洗滤饼和碱洗滤液；(3)再将碱洗滤饼水洗若干次，过滤得水洗滤饼和水洗滤液，将水洗滤饼干燥、粉碎制得碳硅粉产品；(4)将碱洗滤液和水洗滤液合并，缓慢加入氢氧化钙至沉淀不再产生，过滤所得滤饼水洗若干次后干燥得氟化钙产品。
Waste carbon silica brick recovery process
一种废旧碳硅砖回收工艺
LIN SHENGYUN (Autor:in) / LIN PEI (Autor:in) / LI JINYUN (Autor:in) / SUN KAILEI (Autor:in)
04.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
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