摘要:
The present invention relates to new compositions of matter, particularly metals and alloys, and methods of making such compositions. The new compositions of matter exhibit long-range ordering and unique electronic character.
摘要:
The invention concerns a recycling process for recovery of metals from Li-ion batteries. More particularly, an autogeneous process is disclosed for the recovery of Co from Li-ion batteries also containing Al and C, comprising the steps of: —providing a bath furnace equipped with means for 02 injection; —providing a metallurgical charge comprising CaO as a slag former, and Li-ion batteries; —feeding said metallurgical charge to the furnace while injecting O2, whereby at least part of the Co is reduced and collected in a metallic phase; —separating the slag from the metallic phase by tapping; characterized in that the fraction of Li-ion batteries, expressed as weight % of the metallurgical charge, is at least equal to 153%−3.5 (Al %+0.6 C %), Al % and C % being the weight % of Al and C in the batteries, thereby enabling to operate the smelt reduction process in autogeneous conditions. This process possesses advantages over the state of the art process using a shaft furnace, having a large tolerance towards the morphology of the charge, high energy efficiency, and simplified off-gas cleaning requirements.
摘要:
An agitator comprising a melting furnace having a storing space for storing non-ferrous molten metal, and a magnetic field generating device for allowing an external magnetic flux to run inside the storing space in a certain direction through the melting furnace for storing the molten metal. At least one pair of electrode terminals are further provided that face each other at a specified distance so as to cross the running direction of the magnetic flux at certain angles and can be connected with a power supply.
摘要:
The invention relates to a method for removing small quantities of water and other possible components from alkali metal amalgam. Said alkali metal amalgam is brought into contact with an element which is not soluble in mercury and the reaction of the water with the alkali metal amalgam and the other possible components is catalysed to form hydroxides and hydrogen. The catalytically active element is selected from, for example, iron, nickel, cobalt, titanium, chrome, molybdenum, stainless steel, tungsten carbide and graphite.
摘要:
The invention relates to a rotary drum-type kiln for remelting aluminium in a protection bath consisting of a salt melt. Said kiln comprises stirring bodies (3) which are fixed to the wall of the kiln (1) and project inwardly over the fireproof lining (2) of the kiln, said bodies being produced from a hydraulically or chemically binding fireproof casting or stamping mass. The aim of the invention is to provide stirring bodies (3) of one such rotary drum-type kiln with a significantly longer service life, doing without a metallic core supported from the inside. To this end, the casting and stamping mass comprises up to 50 vol. % of steel needles, preferably consisting of a chromium nickel steel having a carbon content of less than 0.15 %, a chromium content of between 15 and 19 %, and a nickel content of between 33 and 39 %, and having a diameter of between 0.5 and 2 mm and a length of between 20 mm and 50 mm.
摘要:
Disclosed are cover gas compositions comprising fluoroolefins for impeding the oxidation of molten nonferrous metals and alloys, such as magnesium. The cover gas compositions typically comprise C2-C6 fluoroolefins. Preferably the compounds of the cover gas composition are selected from tetrafluoropropene, pentafluoropropene and fluorochloropropene.
摘要:
A method for purifying a metal, which comprises a first step of holding a first molten metal containing impurities in a first crucible, a second step of immersing a first cooling article in the first molten metal held in the first crucible, while allowing a cooling fluid to flow in the interior of said cooling article, to crystallize a first purified metal on the surface of said cooling article, a third step of taking out the first cooling article having the first purified metal crystallized thereon from the first molten metal, a forth step of holding a second molten metal having an impurity content less than that of the first metal in the first step in a crucible, a fifth step of melting the first purified metal crystallized in the second step and holding the molten metal in a second crucible together with the second molten metal held in the forth step, a sixth step of immersing a second cooling article in the second molten metal held in the fifth step, while allowing a cooling fluid to flow in the interior of said cooling article, to crystallize a second purified metal on the surface of said cooling article, and a seventh step of taking out the second cooling article having the second purified metal crystallized thereon in the sixth step from the second molten metal.
摘要:
A crucible for melting a rare earth element alloy containing, as primary cpmponents, one or more selected from rare earth element oxides including Y2O3 and at least one of Al2O3 and Al2TiO5, characterized in that it is prepared trough the firing at 500 to 1800°C in the case of that containing no Al2TiO5 or at 1000 to 1700°C in the case of that containing no Al2TiO5, that the rare earth element oxide is distributed in a finer part of a material for the firing having a particle diameter of 0.5 mm or less in a percentage higher than that of a coarser part of the material having a particle diameter of greater than 0.5 mm, and that it contains substantially no reaction products of the above rare earth element oxide with the at least one of Al2O3 and Al2TiO5; and a rare earth element alloy produced by the use of the crucible.
摘要翻译:一种用于熔化稀土元素合金的坩埚,所述稀土元素合金包含选自包括Y 2 O 3和Al 2 O 3和Al 2 TiO 5中的至少一种的稀土元素氧化物中的一种或多种作为主要组分,其特征在于其通过在500至1800℃ 在不含Al 2 TiO 5的情况下,在不含Al 2 TiO 5的情况下为1000〜1700℃的情况下,稀土类元素氧化物分布在粒径为0.5mm的烧成用材料的微细部分, 比粒径大于0.5mm的较粗的部分的百分比要少,并且基本上不含上述稀土元素氧化物与Al 2 O 3和Al 2 TiO 5中的至少一种的反应产物; 以及通过使用坩埚制造的稀土元素合金。
摘要:
The invention relates to a method of decorating an article. The inventive method comprises the following steps, namely: a step consisting in preparing a transfer sheet by printing same with at least one heat-activated ink, and a transfer step consisting in applying said sheet to the article to be decorated and heating the assembly. The invention is characterised in that the heating is performed by quenching the article to be decorated, which is associated with the transfer sheet, in a non-ferrous metal alloy bath which is maintained at a nominal temperature for the activation of the heat-activated ink. The invention also relates to the equipment used to implement said method.