公开(公告)号：US4386061A

公开(公告)日：1983-05-31

申请号：US256983

申请日：1981-04-24

申请人： Dzhantore N. Abishev ,  Evnei A. Buketov ,  Nazymkul Baltynova ,  Vitaly P. Malyshev ,  Turabai A. Oralov ,  Egizbai S. Sakpanov ,  Abubakir K. Kobzhasov ,  Kazken N. Orazalina

发明人： Dzhantore N. Abishev ,  Evnei A. Buketov ,  Nazymkul Baltynova ,  Vitaly P. Malyshev ,  Turabai A. Oralov ,  Egizbai S. Sakpanov ,  Abubakir K. Kobzhasov ,  Kazken N. Orazalina

IPC分类号： C01B17/06 ,  C21B13/00 ,  C22B1/02 ,  C01G3/12 ,  C01G49/12

CPC分类号： C01B17/06 ,  C21B13/006 ,  C22B1/02 ,  Y02P10/143

摘要： A method of treating pyrite bearing polymetallic material comprises heating the material in an atmosphere of reducing gases at a temperature of 450.degree. to 500.degree. C. for a period of 30 to 60 min.Gases such as hydrogen, or products of conversion of natural gas or mazut can be used to provide the reducing atmosphere.The roasted copper-containing material is cooled at a rate of 2 to 4 deg. per min and is then subjected to magnetic separation.The operation of magnetic separation is carried out in two stages with the intensity of the magnetic field ranging from 1000 to 2000 oersted, whereafter copper sulphides are removed from the roast, with a magnetic field intensity ranging from 4500 to 6000 oersted.

摘要翻译： 处理含黄铁矿的多金属材料的方法包括在450〜500℃的温度下在减压气氛中加热该材料30〜60分钟。 可以使用气体，例如氢气，天然气或沼泽的转化产物来提供还原气氛。 焙烧的含铜材料以2至4度的速率冷却。 然后进行磁力分离。 磁分离的操作分两步进行，磁场强度范围为1000〜2000奥斯特，此后硫化铜从焙烧中除去，磁场强度范围为4500〜6000奥斯特。