Abstract:
본 발명은 저순도 함유물로부터 고순도 황산망간일수화물MnSO 4 ·H 2 0)를 제조하는 방법 및 이에 의하여 제조된 고순도 황산망간일수화물 에 관한 것이다. 본 발명에 따른 제조방법은 저순도 망간 함유물에 황산(H 2 SO 4 ) 및 환원제를 첨가하여 망간을 침출하여 제1망간침출액을 획득하는 단계와; 상기 제1망간침출액에 칼슘하이드록사이드(Ca(OH) 2 )를 첨가하여 제1불순물이 제거된 제2망간침출액을 획득하는 단계와; 상기 제2 망간침출액에 황화물을 첨가하여 제2불순물이 제거된 제3망간침출액을 획득하는 단계와; 상기 제3 망간침출액에 수산화나트륨(NaOH)을 이용하여 pH조절을 수행하여 망간을 침전시켜 망간산화물을 획득하는 단계와; 상기 망간산화물에 황산을 첨가하여 재용해하는 단계와; 상기 재용해된 망간산화물을 건조하여 고순도 황산망간일수화물(MnSO 4 ·H 2 0)을 수득하는 단계를 포함한다. 이에 의해 저순도 망간함유물로부터 이차전지의 재료로 사용될 수 있는 황산망간일수화물을 고순도로 제조할 수 있다.
Abstract:
본 발명은 저순도 망간 및 칼륨 함유물로부터 고순도 망간화합물 및 고순도 황산칼륨의 제조방법에관한 것이다. 본 발명에 따른 저순도 망간 및 칼륨 함유물로부터 고순도 망간 화합물 및 황산칼륨의 제조방법은 저순도 망간 및 칼륨 함유물에 물을 첨가한 후 제1고액분리를 통하여 칼륨이 포함되는 제1칼륨침출액과 제1고체를 분리하는 단계와; 상기 제1칼륨침출액에 황화물을 첨가하여 제1불순물을 제거하고, 황산을 이용하여 고순도 황산칼륨을 제조하는 단계와; 상기 제1고체를 황산을 첨가하여 배소시켜 황산망간으로 변환시킨 후 수산화칼슘 및 황화물 중 적어도 어느 하나를 이용하여 제2불순물을 제거하고, 제2고액분리를 통하여 망간침출액을 획득하는 단계와; 상기 망간침출액으로부터 고순도 망간화합물을 제조하는 단계를 포함한다. 이에 의해 하나의 프로세스를 통하여 경제적으로 저순도 망간 및 칼륨 함유물로부터 고순도 망간화합물(황산망간일수화물, 사산화삼망가니즈 및 EMM(Electronic Manganese Metal) 및 고순도 황산칼륨을 동시에 제조할 수 있다.
Abstract:
The present invention relates to a method for manufacturing a high-purity manganese compound, potassium sulfate and a fertilizer from a material containing low-purity manganese and potassium. The method for manufacturing a high-purity manganese compound, potassium sulfate and a fertilizer from a material containing low-purity manganese and potassium according to the present invention comprises the steps of: separating a first solid from a first potassium leachate including potassium hydroxide via a first solid-liquid separation after adding water to a material containing low-purity manganese and potassium; removing a first foreign material by adding sulfide to the first potassium leachate and manufacturing high-purity potassium sulfate by adjusting pH using sulfuric acid; obtaining a first manganese leachate by adding hydrochloric acid and a reducing agent to the solid and obtaining a second manganese leachate by removing a second foreign material using sulfide and potassium hydroxide; manufacturing high-purity trimanganese tetraoxide from the second manganese leachate by adjusting pH using potassium hydroxide; obtaining a third manganese leachate from the first manganese leachate by removing a third foreign material using sulfide; and manufacturing high-purity manganese sulfate monohydrate from the third manganese leachate by adding sulfuric acid after adjusting pH using potassium hydroxide.
Abstract:
PURPOSE: A silicone separating method by using triboelectrostatic separating device is provided to separate only the silicon particle by using the triboelectrostatic separating device and not using any chemical method at all from a mixed sample in which more than one from silicone and silica or the glass are included. CONSTITUTION: A silicone separating method by using triboelectrostatic separating device comprises: a preprocessing step which obtains the mixed sample in which more than one from silicone and silica or the glass are mixed; a grain size adjusting step (S110) which adjusts the grain size of the mixed sample to the size capable of triboelectrostatic separation after crushing and pulverizing the mixed sample; a triboelectric charging step (S120) which performs triboelectric charging as anode or cathode property in the pulverized mixed sample according to the triboelectric charging property; an electrostatic separating step (S130) which separates the silicon particle by electrostatic separating the triboelectric charged mixed sample. [Reference numerals] (AA) Preprocessed mixing sample (Silicon, silica, glass); (BB) Silica, glass(+)/silicon (-); (CC) Separating silicon; (S110) Controlling particle size; (S120) Charging friction; (S130) Selecting blackout
Abstract:
PURPOSE: A method for manufacturing molybdenum is provided to obtain highly purified molybdenum by collecting molybdenum and eliminating arsenic from the molybdenum through a solvent extraction process. CONSTITUTION: An amine-based organic solvent is added in wastewater containing molybdenum and arsenic. Molybdenum ions are collected by the amine-based organic solvent. Ammonia water is added to back-extract the molybdenum ions(S20). Magnesium salt is added to precipitate an arsenic compound. A solid-liquid separating process is implemented. Acid is added to the liquid obtained through the solid-liquid separating process, and highly purified molybdenum is collected(S50).
Abstract:
A method for collecting copper and molybdenum remaining in effluent generated in a manufacturing process is provided to reduce mineral import by recycling the copper and the molybdenum with a counter-current extraction mode. A method for collecting copper and molybdenum remaining in effluent generated in a manufacturing process includes the following steps of: collecting a molybdenum ion in an organic solvent by adding an Amine series organic solvent(S10); separating the collected organic solvent from the effluent(S20); performing a counter-current extraction process of the molybdenum ion by adding an ammonia solution(S30); and collecting molybdenum by adding acid on the ammonia solution(S40).