发明授权
- 专利标题： Recycling of tungsten carbides
- 专利标题（中）： 回收碳化钨
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申请号： US13500313申请日： 2010-10-26
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公开(公告)号： US08685137B2公开(公告)日： 2014-04-01
- 发明人: Johan Arvidsson
- 申请人： Johan Arvidsson
- 申请人地址： SE Strassa
- 专利权人： Minpro Aktiebolag
- 当前专利权人： Minpro Aktiebolag
- 当前专利权人地址： SE Strassa
- 代理机构： Manelli Selter PLLC
- 代理商 Jeffrey S. Melcher
- 优先权： SE0950795 20091026; SE1050077 20100125
- 国际申请： PCT/SE2010/051155 WO 20101026
- 国际公布： WO2011/053231 WO 20110505
- 主分类号： C22B34/00
- IPC分类号： C22B34/00
摘要：
The invention relates to a process for producing an iron-and/or tungsten containing powder or powder agglomerate including the steps of: a) mixing at least a first powder fraction comprising a tungsten carbide containing powder, and at least a second powder fraction comprising an iron oxide powder and/or a tungsten oxide containing powder and optionally an iron powder, the weight of the first fraction being in the range of 50-90% by weight of the mix and the weight of the second fraction being in the range of 10-50% by weight of the mix, b) heating the mix of step a) to a temperature in the range of 400-1300° C., preferably 1000-1200° C. The invention also relates to an iron-and/or tungsten containing powder or powder agglomerate.
公开/授权文献
- US20120251380A1 RECYCLING OF TUNGSTEN CARBIDES 公开/授权日：2012-10-04
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