摘要:
The present invention relates to a complex copper ore concentration method using leaching and cementation. The complex copper ore concentration method using leaching and cementation which is a method for producing copper concentrate from complex copper raw ore containing talc-containing gangue mineral and copper-containing mineral comprises: a talc removing step of separating talc from the copper-containing mineral by floating talc and depositing the copper-containing mineral in an ore solution through floatation with respect to the complex copper raw ore which was crushed and pulverized in order to remove talc; copper leaching step of putting acid in the ore solution containing the complex copper raw ore from which talc is removed in order to leach copper contained in the copper-containing mineral; a copper precipitating step of putting a reducing agent which is higher in ionization than copper ion and has magnetism in the ore solution in which copper is deposited in order to precipitate copper onto the surface of the reducing agent through cementation; a magnetic separation step of separating magnetic materials from the ore solution through magnetic separation; and a copper concentrate producing step of separating copper by floating copper onto the ore solution and depositing the reducing agent in the ore solution through floatation with respect to the magnetic materials separated in the magnetic separation step.
摘要:
Disclosed is a method for refining the crystal grains of a sintered body by reducing the oxygen content of metallic molybdenum powder. The method for refining the crystal grains of a sintered body by reducing the oxygen content of metallic molybdenum powder comprises: a step of preparing metallic molybdenum powder; a step of deoxidizing the prepared metallic molybdenum powder using a calcium as a deoxidizing agent; a step of obtaining a sintered body by put the deoxidized metallic molybdenum powder in a sintering machine. [Reference numerals] (AA) START; (BB) END; (S10) Prepare molybdenum powder; (S20) Deoxidation; (S30) Put the deoxidized molybdenum powder in a sintering machine; (S40) Sinter the deoxidized molybdenum powder while changing sintered temperatures; (S50) Measure the hardness, oxygen concentration, crystal grain size and relative density of a sintered body
摘要:
The present invention relates to a complex copper ore beneficiation method using leaching and a precipitate. According to the present invention, the complex copper ore beneficiation method for manufacturing a copper concentrate from a copper complex ore including copper containing a mineral, and a gangue mineral including talcum comprises: a talcum removing step for removing talcum since talcum and copper containing a mineral are separated by sinking the copper containing a mineral into an inside of pulp and floating the talcum through ore dressing by floatation about a copper complex ore passing through a crushing step and a smashing step; a copper leaching step for leaching copper inside copper containing a mineral by inserting an acid inside pulp including a copper complex ore where talcum is removed; a copper precipitate step for forming copper sulfide by injecting a sulfide precipitant into the pulp where copper is leached; and a copper ore manufacturing step for separating copper sulfide by floating copper sulfide with hydro phobic properties through a floatation about pulp, and sinking other gangue minerals into an inside of pulp. [Reference numerals] (AA) Copper complex ore; (BB) Crushing and smashing; (C1) Talcum removing; (C2) Foaming agent : oil; (C3) Foaming agent : MIBC; (DD) Float product : talcum; (EE) Sink product; (F1) Copper leaching step; (F2) Leaching agent : an inorganic acid (H_2SO_4, HNO_3, and HCI etc.); (F3) Amount used : 2-3 equivalent comparing with contents of a copper ore; (G1) Copper precipitate step; (G2) Precipitant : a sulfide precipitant (Na_2S, CaS, and (NH_4)_2S etc.); (G3) Amount used : 1-3 equivalent comparing with contents of a copper ore; (H1) Manufacture a first concentrate; (H2,K2) Collector; (H3,K3) Xanthate; (H4,K4) Foaming agent; (II) Concentrates 1; (JJ) Tailing; (K1) Manufacture a second concentrate; (LL) Concentrates 2; (MM) Middling
摘要:
PURPOSE: A method for reducing MoO_3(molybdenum trioxide) and manufacturing low-oxygen content molybdenum is provided to manufacture the MoO_3 to metal molybdenum power with 5 micrometers or less of particle size and low oxygen content. CONSTITUTION: A method for reducing MoO_3 and manufacturing low-oxygen content molybdenum is as follows: a step of putting a first reducing agent and the MoO_3 into a micro sieve positioned above a bracket(ST110); a step of putting a second reducing agent into the bracket positioned under the micro sieve; a step of a coupling a cover and a body; and a step of reducing the MoO_3 by increasing the temperature of the body. [Reference numerals] (AA) Start; (BB) End; (CC) Cleaning → Filtering → Vacuum drying; (DD) XRD, Oxygen; (ST110) MoO_3 + Ca; (ST120) Vacuum heat-treatment; (ST130) Separation; (ST140) Analysis
摘要:
본 발명은 중금속 흡착방법에 관한 것으로 겔 상태의 실리카를 마련하는 단계와; 상기 실리카에 중금속을 흡착시키는 단계를 포함하는 것을 특징으로 한다. 이에 의해 중금속을 안정적이고 친환경적으로 흡착하는 방법이 제공된다. CO₂, SiO₂, CaCO₃, 중금속 양이온, 중금속 흡착
摘要:
본 발명은 a)암모니아 1 ~ 28중량%를 포함하는 암모니아수와 부산석고를 혼합하면서 이산화탄소를 공급 반응시켜 슬러리를 제조하는 단계; 및 b)상기 슬러리를 고액 분리한 후, 상기 분리된 고체 및 액체를 건조시켜 단일상의 방해석 및 황안을 수득하는 단계; 를 포함하는 이산화탄소 고정화 방법에 관한 것이다. 본 발명에 따른 이산화탄소 고정화방법은 이산화탄소를 광물의 격자 내에 안정하게 존재하도록 하는 방법이며, 부산물로 발생하는 방해석 및 황안 중에서, 방해석은 고순도의 단일상(single phase)이기 때문에 제지코팅용 소재, 각종 산업용 분말소재 등으로 사용할 수 있어 활용성이 높으며, 황안은 비료로 사용할 수 있어 폐기물 발생이 거의 없다. 그리고 매년 수백만 톤씩 발생되는 부산석고를 원료로 이용하므로 환경보호와 동시에 폐자원 재활용 효과가 있으며, 환경오염문제를 근본적으로 해결할 수 있다. 이산화탄소, 부산석고, 탄산염 광물화, 방해석, 황안
摘要:
본 발명은 소각 바닥재 슬러리와 탄산가스를 결합시켜 소각 바닥재 슬러리에 이산화탄소를 높은 효율로 고정하는 것을 특징으로 하는 생활폐기물을 이용하여 이산화탄소를 고정하는 방법 및 장치로서, 수직이송형 탄산화장치(1), 수평스크류 교반형 탄산화장치(2), 싸이클론식 탄산화장치(3)으로 구성되는 생활폐기물 소각 바닥재의 이산화탄소 고정장치에 관한 것이다. 본 발명은 지구온난화의 원인으로 지적되고 있는 이산화탄소를 효율적으로 생활폐기물 소각 바닥재에 고정하여 건축용 자재로 활용함으로써 이산화탄소로 인한 지구 온난화의 문제를 해결하기 위한 것으로, 종래 매립에 의하여 버려지던 생활폐기물 소각 바닥재를 활용하여 이산화탄소를 고정함으로써, 폐자원의 활용뿐만 아니라 지구 환경개선의 양면적 효과를 나타내는 발명이다. 본 발명은 본 발명자들이 개발한 생활폐기물 소각 바닥재를 이용한 이산화탄소 고정 방법 및 장치의 문제점들을 개선하고, 연속공정을 통한 이산화탄소 고정화 효율을 개선할 수 있을뿐만 아니라, 생활폐기물 소각 바닥재를 건축용 부자재로 활용함으로써 단순히 매립하여 버려지는 소각 바닥재를 재활용하여 자원의 절약과 환경의 보호라는 효과를 동시에 추구할 수 있는 발명으로서 특징이 있다.
摘要:
PURPOSE: A method for recycling bottom ash generated in a wastes incinerating process is provided to eliminate toxic components such as iron and chlorides by implementing an iron component eliminating process, a pulverizing process, and a carbonating process. CONSTITUTION: Iron components are eliminated from bottom ash. The bottom ash without the iron components is primarily pulverized. The primarily pulverized bottom ash is mixed with water. A deposition process and a washing process are followed, and chlorides are eliminated from the bottom ash by injecting carbon dioxide gas. An alkaline material is added to the bottom ash. The washed bottom ash is secondarily pulverized. Gypsum is added to secondarily pulverized bottom ash. A pozzolan material is mixed with the bottom ash with the gypsum.