Title: Method of removing sulfur, arsenic, phosphorus and reducing silicone using constant temperature calcining-water quenching ore dressing
Application Number: 200610048809 Application Date: 2006.11.09
Publication Number: 1948519 Publication Date: 2007.04.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C22B1/00;C22B1/02;B03C1/00
Applicant(s) Name: Ning Qingong Address:
Inventor(s) Name: Ning Qingong
Attorney & Agent: jinyao sheng
Abstract:
    The invention is a method of mineral concentration by roasting-water quenching under constant temperature to remove sulphur, arsenic, phosphor and subdue silicium. The method is characterized in that: Crude ore is broke to a fineness of 0-2.5mm and classed. Then, it is roasted under constant temperature for 45 to 60 minutes with a calcium fluoride auxiliary containing 3-4%. ore. After being roasted, crude ore is water quenched to achieve separation of metal and silicon. It is broke to 80-120 order again. Metallic ore and ferrous metal are separated by technics of magnetic separation and gravity treatment, which can achieve necessary preparation concentrate of nonferrous metal. The method can remove sulphur to 0.064%, phosphor to 0.082% and arsenic to 0.013%. Thus sulphur, phosphor, arsenic and silicium are separately depressed to 0.1
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