Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of biological asphalt for aluminum electrolysis carbon anode, aluminum electrolysis carbon anode and preparation method of aluminum electrolysis carbon anode
The invention relates to a preparation method of biological asphalt for an aluminum electrolysis carbon anode, the aluminum electrolysis carbon anode and a preparation method of the aluminum electrolysis carbon anode, and belongs to the field of aluminum electrolysis carbon anode preparation. The preparation method of the biological asphalt comprises the following steps: extracting oily sludge with trichloromethane to obtain an extract, cracking the extract at 400-410 DEG C, and collecting a cracked gas-phase substance to obtain biological oil; and distilling the bio-oil under the conditions that the vacuum degree is not greater than 5000Pa and the temperature is 245-250 DEG C, and collecting a distilled gas-phase substance to obtain the bio-asphalt. According to the method, oil in the oil-containing sludge is transferred into trichloromethane by utilizing the basic principle of'similar miscibility ', and impurities in the oil-containing sludge can be effectively removed through high-temperature cracking and distillation, so that the biological asphalt is obtained. The biological asphalt replaces conventional coal pitch to serve as an adhesive of an aluminum electrolysis carbon anode, the porosity of the carbon anode can be effectively reduced, and the service life of the anode is prolonged.
本发明涉及一种铝电解碳素阳极用生物沥青的制备方法、铝电解碳素阳极及其制备方法，属于铝电解碳素阳极制备领域。该生物沥青的制备方法包括以下步骤：将含油污泥用三氯甲烷进行萃取，得到萃取物，将萃取物在400～410℃下进行裂解，收集裂解气相物，得到生物油；将生物油在真空度不大于5000Pa、245～250℃下进行蒸馏，收集蒸馏气相物，得到生物沥青。本发明利用“相似相溶”的基本原理，将含油污泥中的油转移至三氯甲烷中，在经过高温裂解、蒸馏，能够有效去除含油污泥中的杂质，并得到生物沥青。该生物沥青代替常规的煤沥青作为铝电解碳素阳极的粘接剂，能够有效降低碳素阳极的孔隙率，提高阳极的寿命。
Preparation method of biological asphalt for aluminum electrolysis carbon anode, aluminum electrolysis carbon anode and preparation method of aluminum electrolysis carbon anode
The invention relates to a preparation method of biological asphalt for an aluminum electrolysis carbon anode, the aluminum electrolysis carbon anode and a preparation method of the aluminum electrolysis carbon anode, and belongs to the field of aluminum electrolysis carbon anode preparation. The preparation method of the biological asphalt comprises the following steps: extracting oily sludge with trichloromethane to obtain an extract, cracking the extract at 400-410 DEG C, and collecting a cracked gas-phase substance to obtain biological oil; and distilling the bio-oil under the conditions that the vacuum degree is not greater than 5000Pa and the temperature is 245-250 DEG C, and collecting a distilled gas-phase substance to obtain the bio-asphalt. According to the method, oil in the oil-containing sludge is transferred into trichloromethane by utilizing the basic principle of'similar miscibility ', and impurities in the oil-containing sludge can be effectively removed through high-temperature cracking and distillation, so that the biological asphalt is obtained. The biological asphalt replaces conventional coal pitch to serve as an adhesive of an aluminum electrolysis carbon anode, the porosity of the carbon anode can be effectively reduced, and the service life of the anode is prolonged.
本发明涉及一种铝电解碳素阳极用生物沥青的制备方法、铝电解碳素阳极及其制备方法，属于铝电解碳素阳极制备领域。该生物沥青的制备方法包括以下步骤：将含油污泥用三氯甲烷进行萃取，得到萃取物，将萃取物在400～410℃下进行裂解，收集裂解气相物，得到生物油；将生物油在真空度不大于5000Pa、245～250℃下进行蒸馏，收集蒸馏气相物，得到生物沥青。本发明利用“相似相溶”的基本原理，将含油污泥中的油转移至三氯甲烷中，在经过高温裂解、蒸馏，能够有效去除含油污泥中的杂质，并得到生物沥青。该生物沥青代替常规的煤沥青作为铝电解碳素阳极的粘接剂，能够有效降低碳素阳极的孔隙率，提高阳极的寿命。
Preparation method of biological asphalt for aluminum electrolysis carbon anode, aluminum electrolysis carbon anode and preparation method of aluminum electrolysis carbon anode
一种铝电解碳素阳极用生物沥青的制备方法、铝电解碳素阳极及其制备方法
WANG WEI (Autor:in) / ZHANG KUNMO (Autor:in) / ZHANG GUOLING (Autor:in) / SUN QIRUI (Autor:in) / LI YUZHI (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C10C
Aufbereiten bzw. Verarbeiten von Teer, Pech, Asphalt, Bitumen
,
WORKING-UP TAR, PITCH, ASPHALT, BITUMEN
/
C04B
Kalk
,
LIME
/
C25C
Verfahren für die elektrolytische Herstellung, Wiedergewinnung oder Raffination von Metallen
,
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS
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