The purpose of this work was to investigate a novel molten salt process for recovering metallic Al, as well as Al contained in Al 2 O 3 and AlN from Al dross in …
Aluminum dross contains fluoride and heavy metals, and easily reacts with water and acid to produce stimulating, toxic, and explosive gases. Owing to a lack of …
Describe the Al extraction process and the properties of Al dross in China. Comprehensive treatments for recovery of valuable substances and the removal of …
Aluminum (Al) dross as a hazardous solid waste in aluminum production industries has caused serious environmental and public health challenges. Various …
Aluminium dross, which in principle can be assigned to new scrap, consists of up to 80% of metallic Al, aluminium oxides in various forms (α and γ), and Al nitride. In …
During the aluminum production process, a large amount of aluminum dross (AD) is produced, which have been considered to be a kind of toxic and hazardous waste causing serious environmental pollution when it is exposed to humid air or water (Murayama et al. 2012; Sarker et al. 2015; Manfredi et al. 1997; Adeosun et al. 2012; Ünlü and …
The results for the melted Al dross with CaO-Al 2 O 3 synthetic slags and Cu indicated that, in experiments 2 and 3, two complete separable metal and slag phases were obtained, as shown in Figure 11, and this approach in return was more successful than experiment 1. The metal phase was completely collected below the slag and the slag was easily ...
In this study, the original aluminum dross was collected from the secondary smelting aluminum dross factories with 33.6% Al. The aluminum dross was dissolved …
Aluminum dross contains fluoride and heavy metals, and easily reacts with water and acid to produce stimulating, toxic, and explosive gases. Owing to a lack of developed …
The objective of this review is to critically evaluate important aspects of aluminium dross generation, classification, properties, applications, and its commercial …
Al dross may be leached with water solutions containing copper chloride to yield aluminum oxychloride, Al(OH)Cl 2, which can be subsequently treated with aluminum hydroxide to obtain aluminum chloride, Al 2 (OH) 5 Cl, a coagulant for treating water. In addition, Al dross may be utilized as aggregate in the manufacture of cement and as a ...
Due to the excellent engineering property, aluminum has become an important material for processing industries. As the demand of aluminum increased, a large amount of waste aluminum dross has been generated during the aluminum smelting process. The aluminum dross contained aluminum nitride and would cause odor while …
Al dross was subjected to a mechanical milling at room temperature utilizing a ball mill to separate the fine oxide and inclusions of the dross and obtain rich metallic Al-containing particles as applied previously [16,17]. After the mechanical treatment, the milled Al dross was sized by sieving and a particles size ≤ 1 mm for experiments 1 ...
Abstract. The aluminum recovery from white aluminum dross by a mechanical treatment and sizing followed by remelting process was investigated. The dross was …
In the second run of Experiment 7 and in Experiment 1, only Al Dross was preferred as a reductant. On the other hand, in the first run of Experiment 7 and in Experiment 2, only Al Powder was preferred as a reductant. Al Dross and Al Powder were used as reductants by mixing with different stoichiometric ratios in the rest of the …
Solid waste from aluminium melting process with less than 45% Al metal is called "dross". Dross may also be separated into "white dross" from primary smelters without salt cover …
