公开(公告)号：US20240238805A1

公开(公告)日：2024-07-18

申请号：US18562153

申请日：2022-05-13

申请人： Vale S.A. ,  Universidade de São Paulo - USP

发明人： Lívia Marques FAUSTINO ,  Flávia Paulucci Cianga SILVAS ,  Thiago Cesar de Souza PINTO ,  Flávio BUIOCHI ,  Guilherme Victor SELICANI ,  André Soares BRAGA ,  Virginia Paula NYKÄNEN ,  Laurindo Salles LEAL FILHO ,  Alfredo Moises SARKIS

IPC分类号： B03D1/02 ,  B03D1/18 ,  B06B1/00

CPC分类号： B03D1/02 ,  B03D1/18 ,  B06B1/00

摘要： This invention relates to an ore beneficiation process by flotation. In this context, an ore beneficiation system is provided with application of ultrasound to the flotation froth comprising an air-emission ultrasonic transducer positioned above the flotation froth, with the ultrasonic transducer being adapted to emit ultrasonic waves towards the flotation froth. This invention also provides an ore beneficiation process associated with the system described above. Thus, this invention provides a process and system for ore beneficiation with the application of ultrasound to the flotation froth without immersing the ultrasonic transducer into the ore slurry. The current invention can partially remove the liquid film that resides between the air bubbles, thereby enhancing metallurgical recovery rates. Furthermore, it can be employed to effectively counteract the persistence of three-phase froth resulting from flotation, thereby improving the efficiency of processes associated with water and waste management.

公开(公告)号：US20140216987A1

公开(公告)日：2014-08-07

申请号：US14172672

申请日：2014-02-04

申请人： VALE S.A.

发明人： Laurindo de Salles LEAL FILHO ,  Helder Silva SOUZA ,  André Soares BRAGA

IPC分类号： B03D1/02

CPC分类号： B03D1/02 ,  B03D1/085 ,  B03D2203/04

摘要： A process for concentrating manganese from the tailing of a manganese-carrying mineral including removing a coarse particle size fraction from the tailing, desliming and conducting an acidic or a basic reverse cationic flotation. The manganese-carrying minerals are typically minerals with low manganese content from the lithologies “Tabular Pelite” (or PETB), Pelite Siltite (or PEST), Detritic (or DETR), Rich Pelite (or PERC) and Metallurgical Bioxide (or BXME). In another aspect, the present invention also relates to a reverse cationic flotation used to concentrate manganese which is carried out using depressor agents and collector agents as flotation reagents.

摘要翻译： 从含锰矿物的尾矿中浓缩锰的方法，包括从尾矿中除去粗粒子级分，去沉淀并进行酸性或碱性反向阳离子浮选。 锰载体矿物通常是岩性“板状砾岩”（或PETB），堇青石（或PEST），碎屑（或DETR），富砾岩（或PERC）和冶金二氧化物（或BXME））的锰含量低的矿物， 。 另一方面，本发明还涉及用于浓缩锰的反向阳离子浮选，其使用抑制剂和收集剂作为浮选试剂进行。