-
1.
公开(公告)号:KR1020140045050A
公开(公告)日:2014-04-16
申请号:KR1020120111094
申请日:2012-10-08
Applicant: 한국지질자원연구원
IPC: B22F9/26
Abstract: The present invention relates to a method for preparing copper powder by removing copper ions from a mixed solution containing copper ions characterized in that a mixed solution containing copper ions is controlled to pH 0.5 to 3.5 and the copper ions are selectively reduced using hydrogen gas. Moreover, the copper powder prepared according to an embodiment of the present invention is 99.9% or more in purity. [Reference numerals] (AA) Mixed solution of copper, nickel, and cobalt; (BB) pH regulator; (CC) pH adjustment; (DD) Hydrogen gas; (EE) High-temperature and high-pressure reactor; (FF) Solid-liquid separation; (GG) Solution containing nickel and cobalt; (HH) Copper powder slurry; (II) Washing; (JJ) Drying; (KK) Copper powder
Abstract translation: 本发明涉及一种通过从含有铜离子的混合溶液中除去铜离子来制备铜粉的方法,其特征在于将含有铜离子的混合溶液控制在pH5.5至3.5,并且使用氢气选择性地还原铜离子。 此外,根据本发明的实施方案制备的铜粉末的纯度为99.9%以上。 (附图标记)(AA)铜,镍和钴的混合溶液; (BB)pH调节剂; (CC)pH调节; (DD)氢气; (EE)高温高压反应釜; (FF)固液分离; (GG)含镍和钴的溶液; (HH)铜粉浆料; (二)洗涤; (JJ)烘干; (KK)铜粉
-
公开(公告)号:KR100999194B1
公开(公告)日:2010-12-07
申请号:KR1020080127446
申请日:2008-12-15
Applicant: 한국지질자원연구원
Abstract: 본 발명은 유가금속을 함유하는 합성매트를 황산용액 존재 하에서 상전이물질인 (C
10 ~ C
30 )지방족 탄화수소화합물을 첨가하여 침출하는 것을 특징으로 하는 유가금속의 침출방법에 관한 것이다.
본 발명에 의한 유가금속의 침출방법은 상전이물질인 (C
10 ~ C
30 )지방족 탄화수소화합물을 첨가함으로써 보다 낮은 온도와 압력에서 유가금속들의 침출율을 향상시키는 장점이 있다. 또한 상전이물질인 (C
10 ~ C
30 )지방족 탄화수소화합물을 간단한 상분리 공정을 통하여, 재활용 할 수 있는 장점이 있다.
합성매트, 구리, 니켈, 코발트, 상전이물질-
3.
-
公开(公告)号:KR1020100068928A
公开(公告)日:2010-06-24
申请号:KR1020080127446
申请日:2008-12-15
Applicant: 한국지질자원연구원
CPC classification number: C22B15/0071 , C22B3/08 , C22B23/025 , C22B23/0407
Abstract: PURPOSE: A leaching method of the valuable metal from synthetic mat is provided to reduce a manufacturing cost by using the sulfuric acid in leaching. CONSTITUTION: A leaching method of the valuable metal from synthetic mat comprises: a step of leaching a synthetic mat with valuable metals by adding hydrocarbon compound under a sulfuric acid solution; a step of producing the slurry by adding the synthetic mat with valuable metals and the phase change material aliphatic hydrocarbon compound under a sulfuric acid solution; a step of leaching the slurry by pressurizing it and increasing temperatures; and a step of collecting the leaching solution. The synthetic mat containing valuable metals comprises copper, nickel, cobalt, iron and sulfur. The concentration of the sulfuric acid solution is 1~10%.
Abstract translation: 目的:提供合成垫中贵重金属的浸出方法,通过使用硫酸浸出来降低制造成本。 构成:从合成垫中浸取有价值金属的方法包括:通过在硫酸溶液下加入烃化合物来浸出具有有价值金属的合成垫的步骤; 通过将有价金属的合成垫和相变材料脂族烃化合物加入到硫酸溶液中来制备浆料的步骤; 通过对浆料进行加压并提高温度来浸出浆料的步骤; 以及收集浸出液的步骤。 含有有价金属的合成垫包括铜,镍,钴,铁和硫。 硫酸溶液浓度为1〜10%。
-
-
-