CN106282537A - 低品位红土镍矿的耦合式烧结方法 - Google Patents
低品位红土镍矿的耦合式烧结方法 Download PDFInfo
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- CN106282537A CN106282537A CN201610791341.4A CN201610791341A CN106282537A CN 106282537 A CN106282537 A CN 106282537A CN 201610791341 A CN201610791341 A CN 201610791341A CN 106282537 A CN106282537 A CN 106282537A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0038—Obtaining aluminium by other processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/005—Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
本发明涉及冶金领域,具体为低品位红土镍矿的耦合式烧结方法,低品位红土镍矿的耦合式烧结方法,进行干燥,脱除红土镍矿中的自由水;再进行破碎、粉磨,得到粉状红土镍矿;配加无烟煤、氯化钠和高岭土,再进行造块,然后进行干燥;进行还原焙烧,红土镍矿中的铝转化为可溶性的铝盐,铁部分被还原为金属铁,镍全部被还原为金属镍;进行破碎粉磨,加水加热浸出,然后过滤,得到含铝溶液和滤渣;本发明提供的低品位红土镍矿的耦合式烧结方法,实现镍的富集,铁和镍回收率搞,同时还可充分利用铝资源。
Description
技术领域
本发明涉及冶金领域,具体为低品位红土镍矿的耦合式烧结方法。
背景技术
红土镍矿含结晶水较高,熔化温度较高,如果采用传统的高炉冶炼工艺,只能冶炼出含镍较低的生铁,经济价值较低。直接采用高温还原-磁选工艺,选出的精矿中杂质铝含量较高,镍的品位只能达到1.0~1.5%,经济价值也较低。
发明内容
针对上述技术问题,本发明提供一种低品位红土镍矿的耦合式烧结方法。
具体技术方案为:
低品位红土镍矿的耦合式烧结方法,包括如下步骤:
(1)进行干燥,脱除红土镍矿中的自由水;再进行破碎、粉磨,得到粉状红土镍矿;
(2)在红土镍矿粉中配加无烟煤、氯化钠和高岭土,再进行造块,然后进行干燥;
(3)对红土镍矿块进行还原焙烧,红土镍矿中的铝转化为可溶性的铝盐,铁部分被还原为金属铁,镍全部被还原为金属镍;
(4)对红土镍矿块进行破碎粉磨至粒度小于200目;
(5)加水加热浸出,然后过滤,得到含铝溶液和滤渣;
(6)含铝溶液提取铝,滤渣通过磁选得到磁性镍铁精矿和尾矿。
本发明提供的低品位红土镍矿的耦合式烧结方法,实现镍的富集,铁和镍回收率搞,同时还可充分利用铝资源。
具体实施方式
为了便于理解本发明,下面将通过具体实施方式对本发明进行更全面的描述。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
低品位红土镍矿的耦合式烧结方法,包括如下步骤:
(1)进行干燥,脱除红土镍矿中的自由水;再进行破碎、粉磨,得到粉状红土镍矿;
(2)在红土镍矿粉中配加无烟煤、氯化钠和高岭土,再进行造块,然后进行干燥;
(3)对红土镍矿块进行还原焙烧,红土镍矿中的铝转化为可溶性的铝盐,铁部分被还原为金属铁,镍全部被还原为金属镍;
(4)对红土镍矿块进行破碎粉磨至粒度小于200目;
(5)加水加热浸出,然后过滤,得到含铝溶液和滤渣;
(6)含铝溶液提取铝,滤渣通过磁选得到磁性镍铁精矿和尾矿。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (1)
1.低品位红土镍矿的耦合式烧结方法,其特征在于:包括如下步骤:
(1)进行干燥,脱除红土镍矿中的自由水;再进行破碎、粉磨,得到粉状红土镍矿;
(2)在红土镍矿粉中配加无烟煤、氯化钠和高岭土,再进行造块,然后进行干燥;
(3)对红土镍矿块进行还原焙烧,红土镍矿中的铝转化为可溶性的铝盐,铁部分被还原为金属铁,镍全部被还原为金属镍;
(4)对红土镍矿块进行破碎粉磨至粒度小于200目;
(5)加水加热浸出,然后过滤,得到含铝溶液和滤渣;
(6)含铝溶液提取铝,滤渣通过磁选得到磁性镍铁精矿和尾矿。
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CN108611493A (zh) * | 2018-05-15 | 2018-10-02 | 湖南邦普循环科技有限公司 | 一种硫化渣的综合回收方法 |
Citations (2)
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CN103757200A (zh) * | 2014-01-08 | 2014-04-30 | 北京矿冶研究总院 | 一种红土镍矿分离富集镍铁的方法 |
CN105463216A (zh) * | 2015-11-27 | 2016-04-06 | 攀钢集团攀枝花钢铁研究院有限公司 | 高铁高铝低镍型红土镍矿的综合利用方法 |
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CN103757200A (zh) * | 2014-01-08 | 2014-04-30 | 北京矿冶研究总院 | 一种红土镍矿分离富集镍铁的方法 |
CN105463216A (zh) * | 2015-11-27 | 2016-04-06 | 攀钢集团攀枝花钢铁研究院有限公司 | 高铁高铝低镍型红土镍矿的综合利用方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108611493A (zh) * | 2018-05-15 | 2018-10-02 | 湖南邦普循环科技有限公司 | 一种硫化渣的综合回收方法 |
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