公开(公告)号：KR100257477B1

公开(公告)日：2000-06-01

申请号：KR1019970071987

申请日：1997-12-22

Applicant: 원 창 환 ,  조성석 ,  대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환 ,  조성석

IPC: B22F9/16

Abstract: PURPOSE: A method for manufacturing an Al2O3-SiC composite powder is provided, which simplifies manufacturing process, increases energy efficiency and represents a high purity by mixing silicon oxide (SiO2), aluminum (Al) and carbon (C) in a certain mole ratio and using SHS (self-propagating high temperature synthesis). CONSTITUTION: The method for manufacturing an Al2O3-SiC composite powder comprises the steps of mixing silicon oxide (SiO2), aluminum (Al) and carbon (C) in a mole ratio of 3:4:3; forming the mixture into a pellet by applying a forming pressure of 80 MPa to the mixture; charging the pellet into a self-propagating high temperature synthesizing reactor which is under an inert gas atmosphere; burning the pellet in the self-propagating high temperature synthesizing reactor; and discharging the manufactured burned product from the self-propagating high temperature synthesizing reactor, wherein the method further comprises a step of preheating the pellet after the step of charging the pellet into a self-propagating high temperature synthesizing reactor which is under an inert gas atmosphere (Ar).

Abstract translation: 目的：提供一种制造Al2O3-SiC复合粉末的方法，其通过以一定摩尔比混合氧化硅（SiO 2），铝（Al）和碳（C）来简化制造工艺，提高能量效率并代表高纯度 并采用SHS（自蔓延高温合成）。 构成：制造Al2O3-SiC复合粉末的方法包括以3:4:3的摩尔比混合氧化硅（SiO 2），铝（Al）和碳（C）的步骤; 通过对混合物施加80MPa的成形压力将混合物形成颗粒; 将颗粒装入处于惰性气体气氛的自蔓延高温合成反应器中; 在自蔓延高温合成反应器中燃烧沉淀物; 从自蔓延高温合成反应器中排出所制造的烧成品，其特征在于，还包括在将所述颗粒装入自蔓延高温合成反应器的步骤之后，将所述颗粒预热的步骤，所述自蔓延高温合成反应器处于惰性气体气氛 （Ar）的。

公开(公告)号：KR1019990048242A

公开(公告)日：1999-07-05

申请号：KR1019970066883

申请日：1997-12-09

Applicant: 원 창 환 ,  대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환 ,  천병선

IPC: B22F9/16

Abstract: 자체 연소 반응법(Self-propagating High-temperature Synthesis)을 이용하여 산화티탄(TiO
2 ) 분말로부터 순수 티타늄(Ti) 분말을 제조하는 방법이 개시되어 있다. 본 발명에 따르면, 산화티탄(TiO
2 )과 마그네슘(Mg)을 1:(2∼2.5)의 몰비로 혼합한 후, 4∼14t의 성형 압력을 가하여 압축시켜서 펠렛을 형성한다. 다음에는, 펠렛을 자체 연소 반응기 내로 장입하여 아르곤(Ar) 가스 분위기하의 자체 연소 반응기 내에서 점화·연소시킨다. 그 결과로서 생성된 연소 생성물을 자체 연소 반응기로부터 취출하여 5∼50% 희석시킨 질산(HNO
3 )을 이용하여 침출시킨다. 그런 후에는, 거름종이를 이용하여 침출물을 여과시키고, 여과물을 세척 및 건조하여 순수 티타늄(Ti)을 얻는다. 이렇게 얻은 순수 티타늄(Ti)은 99.93% 이상의 고순도를 나타낸다.

公开(公告)号：KR100273197B1

公开(公告)日：2000-12-15

申请号：KR1019980000352

申请日：1998-01-09

Applicant: 대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환

IPC: B22F9/16

Abstract: PURPOSE: A method for manufacturing high purity tungsten powder from tungsten oxide (WO3) and zinc by self-propagation high temperature synthesis is provided. CONSTITUTION: The method comprises the steps of blending WO3 and Zn in the mole ratio of 1:3; pelletizing the mixture obtained in the first step by applying a pressure ranging 4 to 14ton; charging the pellet into a self-propagation high temperature synthesis reactor; incinerating the pellet; discharging residue generated in the incineration process from the reactor; leaching the incineration residue by using diluted HCl; filtering leachant; and rinsing filtrated tungsten.

Abstract translation: 目的：提供一种通过自蔓延高温合成从氧化钨（WO3）和锌制造高纯钨粉的方法。 构成：该方法包括以1:3的摩尔比混合WO3和Zn的步骤; 通过施加4至14ton的压力造粒第一步获得的混合物; 将颗粒装入自传高温合成反应器中; 焚烧颗粒; 在焚烧过程中产生的残留物从反应器排出; 使用稀HCl浸提焚烧残渣; 过滤沥滤液 并冲洗过滤的钨。

公开(公告)号：KR100257479B1

公开(公告)日：2000-06-01

申请号：KR1019970071989

申请日：1997-12-22

Applicant: 원 창 환 ,  천 병 선 ,  대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환

IPC: B22F9/16

Abstract: PURPOSE: A method for manufacturing an Al2O3-SiC-TiC composite powder is provided, which simplifies manufacturing process, increases energy efficiency and represents a high purity by mixing silicon oxide (SiO2), titanium oxide (TiO2), aluminum (Al) and carbon (C) in a certain mole ratio and using SHS (self-propagating high temperature synthesis). CONSTITUTION: The method for manufacturing an Al2O3-SiC-TiC composite powder comprises the steps of mixing silicon oxide (SiO2), titanium oxide (TiO2), aluminum (Al) and carbon (C) in a mole ratio of 2.5:0.5:4:1; forming the mixture into a pellet by applying a forming pressure of 80 MPa to the formed mixture; charging the pellet into a self-propagating high temperature synthesizing reactor under an inert gas atmosphere; burning the pellet in the self-propagating high temperature synthesizing reactor; and discharging the manufactured burned product from the self-propagating high temperature synthesizing reactor, wherein the method further comprises a step of preheating the pellet after the step of charging the pellet into a self-propagating high temperature synthesizing reactor under an inert gas atmosphere (Ar).

Abstract translation: 目的：提供一种制造Al2O3-SiC-TiC复合粉末的方法，其简化了制造工艺，提高了能量效率，并且通过混合氧化硅（SiO 2），氧化钛（TiO 2），铝（Al）和碳 （C），使用SHS（自蔓延高温合成）。 构成：制备Al2O3-SiC-TiC复合粉末的方法包括以2.5:0.5:4的摩尔比混合氧化硅（SiO 2），氧化钛（TiO 2），铝（Al）和碳（C）的步骤 ：1; 通过对形成的混合物施加80MPa的成形压力将混合物形成颗粒; 在惰性气体气氛下将颗粒装入自蔓延的高温合成反应器中; 在自蔓延高温合成反应器中燃烧沉淀物; 从自蔓延高温合成反应器中排出所制造的烧成品，其特征在于，还包括在将惰性气氛（Ar ）。

公开(公告)号：KR1020030064177A

公开(公告)日：2003-07-31

申请号：KR1020020004683

申请日：2002-01-26

Applicant: 대한민국(충남대학교)

Inventor： 원창환

IPC: C25C5/02

CPC classification number: C25C5/02 ,  C25C1/12 ,  C25C7/06 ,  Y02P10/234

Abstract: PURPOSE: A method for recovering high purity copper powder of fine particles from waste etchant containing copper using electrolyzer is provided. CONSTITUTION: The method comprises a step (S10) of agitating waste etchant (α-etchant); a step (S20) of adjusting concentration of copper contained in the waste etchant to 13.5 g/L; a step (S30) of injecting the waste etchant into electrolysis reaction container; a step (S40) of proceeding electrolysis collecting reaction as maintaining temperature inside the reaction container to 28 deg.C, pH to 8.6, current density to 6 A/cm¬2 and agitation speed of agitator to 150 rpm; a step (S50) of precipitating copper powder under the cathode by proceeding reaction so that electrolysis rate inside the reaction container is maintained to 1 g/h or more; a step (S60) of taking out and filtering the precipitates; and a step (S70) of drying the washed precipitates after washing the precipitates with water.

Abstract translation: 目的：提供一种使用电解槽从含有铜的废蚀刻剂中回收细颗粒的高纯度铜粉的方法。 构成：该方法包括搅拌废蚀刻剂（α蚀刻剂）的步骤（S10）。 调整废蚀刻剂中所含的铜浓度为13.5g / L的步骤（S20） 将废蚀刻剂注入电解反应容器的步骤（S30） 继续进行电解收集反应的步骤（S40）作为反应容器内部的温度至28℃，pH至8.6，电流密度为6A / cm 2，搅拌器的搅拌速度为150rpm; 通过进行反应使阴极下方的铜粉末析出，使反应容器内的电解率保持在1g / h以上的工序（S50） 步骤（S60）取出和过滤沉淀物; 以及在用水洗涤沉淀物之后干燥洗涤的沉淀物的步骤（S70）。

公开(公告)号：KR1020030064175A

公开(公告)日：2003-07-31

申请号：KR1020020004681

申请日：2002-01-26

Applicant: 대한민국(충남대학교)

Inventor： 원창환

IPC: H01F1/34

Abstract: PURPOSE: A method for fabricating manganese zinc-ferrite powders is provided to prevent the inflow of impurities by removing a milling process and a calcination process. CONSTITUTION: A mixing process is performed to mix FeSO4, MNSO4, and ZnSO4 as raw materials(S10). A coprecipitate is formed by adding KOH to the mixture(S20). The coprecipitate is transferred into a hydrothermal synthesis reactor(S30). The coprecipitate is stirred and synthesized under the predetermined temperature of the hydrothermal synthesis reactor(S40). The synthetic material is extracted and cleaned(S50). The synthetic material is dried(S60). The temperature of the hydrothermal synthesis reactor is maintained under 150 to 250°C.

Abstract translation: 目的：提供一种制造锰锌铁氧体粉末的方法，以通过除去研磨过程和煅烧过程来防止杂质的流入。 构成：以FeSO4，MNSO4和ZnSO4为原料进行混合处理（S10）。 通过向混合物中加入KOH形成共沉淀物（S20）。 将共沉淀物转移到水热合成反应器中（S30）。 在水热合成反应器的预定温度下搅拌并合成共沉淀物（S40）。 提取并清洁合成材料（S50）。 将合成材料干燥（S60）。 水热合成反应器的温度保持在150〜250℃。

公开(公告)号：KR100273198B1

公开(公告)日：2001-02-01

申请号：KR1019980010118

申请日：1998-03-24

Applicant: 대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환

IPC: C01B3/02

Abstract: PURPOSE: A method of producing high purity Si powder from SiO2 using self-propagating high temperature synthesis is provided. Si powder produced by this method has a high purity of over 99.988%, and this method is economical and less energy consumptive. CONSTITUTION: The method comprises the steps of (S1) mixing SiO2 with Mg at a ratio of 1 to 2-2.5, wherein the SiO2 has a particle size of 140μm and a purity over 99.74%, and Mg has a particle size distribution of 10 to 100μm; (S2) forming the mixture in the shape of pellet by compressing the mixture at 4 to 14 ton; (S3) charging the pellet into self propagating reactor; (S4) firing the pellet in the reactor under Ar gas atmosphere or vacuum condition; (S5) withdrawing combustion product from the self propagating reactor; (S6) leaching the combustion product with 10-50% HCl or H2SO4 for 1-3 hours; (S7) filtrating leached residuals; (S8) washing filtrated Si powder followed by drying in a temperature range of 60 to 90deg.C.

Abstract translation: 目的：提供使用自蔓延高温合成法从SiO2生产高纯度Si粉末的方法。 通过该方法生产的Si粉末纯度高达99.988％以上，该方法经济，耗能少。 方法：该方法包括以下步骤：（S1）以1〜2-2.5的比例混合SiO 2与Mg，其中SiO 2的粒度为140μm，纯度为99.74％以上，Mg的粒径分布为10 至100μm; （S2）通过将混合物压制成4〜14吨，形成颗粒状的混合物; （S3）将颗粒装入自传播反应器; （S4）在Ar气氛或真空条件下在反应器中烧制颗粒; （S5）从自蔓延反应器中取出燃烧产物; （S6）将燃烧产物用10-50％HCl或H2SO4浸泡1-3小时; （S7）过滤沥滤残渣; （S8）洗涤过滤的Si粉末，然后在60〜90℃的温度范围内干燥。

公开(公告)号：KR1019990075728A

公开(公告)日：1999-10-15

申请号：KR1019980010118

申请日：1998-03-24

Applicant: 대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환

IPC: C01B3/02

Abstract: 자체 연소 반응법(Self-propagating High-temperature Synthesis)을 이용하여 산화규소(SiO
2 ) 분말로부터 고순도 규소(Si) 분말을 제조하는 방법이 개시되어 있다. 본 발명에 따르면, 산화규소(SiO
2 )와 마그네슘(Mg)을 1:(2∼2.5)의 몰비로 균일하게 혼합한 후, 4∼14t의 성형 압력을 가하여 압축시켜서 펠렛을 형성한다. 다음에는, 펠렛을 자체 연소 반응기 내로 장입하여 아르곤(Ar) 가스 분위기 또는 진공 분위기하에서 점화·연소시킨다. 그 결과로서 생성된 연소 생성물을 자체 연소 반응기로부터 취출하여 약 10∼50% 희석시킨 염산(HCl) 또는 황산(H
2 SO
4 )를 이용하여 1∼3시간동안 침출시킨다. 그런 후에는, 거름종이를 이용하여 침출물을 여과시키고, 여과물을 수차례에 걸쳐서 세척한다. 끝으로, 약 60∼70℃의 온도로 유지되는 건조기 내에서 규소(Si) 분말을 충분히 건조시켜서 순수 규소(Si) 분말을 얻는다. 이렇게 얻은 순수 규소(Si)는 99.988% 이상의 고순도를 나타낸다.

公开(公告)号：KR1019990052496A

公开(公告)日：1999-07-15

申请号：KR1019970071987

申请日：1997-12-22

Applicant: 원 창 환 ,  조성석 ,  대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환 ,  조성석

IPC: B22F9/16

Abstract: 산화규소(SiO
2 )를 원료 물질로 사용하고 알루미늄(Al)과 탄소(C)를 첨가하여 반응물을 만든후, 자체 연소 반응법(Self-propagating High-temperature Synthesis)을 이용하여 Al
2 O
3 -SiC 복합분말을 제조하는 방법이 개시되어 있다. 본 발명에 따르면, 산화규소(SiO
2 ), 알루미늄(Al) 및 탄소(C)를 일정 몰비로 혼합한 후, 80MP의 성형 압력을 가하여 압축시켜서 펠렛을 형성한다. 다음에는, 펠렛을 자체 연소 반응기 내로 장입한 후, 400℃의 온도로 예열하여 반응물의 초기 온도를 높인다. 그런 후에, 아르곤(Ar) 가스 분위기하의 자체 연소 반응기 내에서 반응물을 점화·연소시킨다. 그 결과로서 생성된 연소 생성물 Al
2 O
3 -SiC 복합분말은 99.948% 이상의 고순도를 나타낸다.

公开(公告)号：KR100257478B1

公开(公告)日：2000-06-01

申请号：KR1019970071988

申请日：1997-12-22

Applicant: 원 창 환 ,  대한민국 충남대학교 부속 급속응고 신소재 연구소

Inventor： 원창환

IPC: B22F9/16

Abstract: PURPOSE: A method is provided to manufacture high purity tungsten (W) by leaching tungsten (W)-magnesium oxide (MgO) composite powder obtained as a byproduct of the reduction using about 20% hydrochloric acid (HCl) after reducing a raw material powder of ammonium paratungstate (5(NH4)2O·12WO3·5H2O) using magnesium (Mg) powder as a reductant in the self-propagating high temperature synthesis. CONSTITUTION: The method for manufacturing high purity tungsten powder comprises the steps of mixing ammonium paratungstate and magnesium in a mole ratio of 1:35; forming the formed mixture into a pellet by applying a forming pressure of 4 to 41 tons to the mixture; charging the pellet into a self-propagating high temperature synthesizing reactor under an inert gas atmosphere; burning the pellet in the self-propagating high temperature synthesizing reactor; discharging the manufactured burned product from the self-propagating high temperature synthesizing reactor; leaching the burned product using hydrochloric acid (HCl) which is diluted to 20%; filtering the leached exudation; and washing the filtered tungsten (W) powder.

Abstract translation: 目的：提供一种通过在还原原料粉末之后，使用约20％盐酸（HCl）浸出作为还原的副产物获得的钨（W） - 氧化镁（MgO）复合粉末来制造高纯度钨（W）的方法 的仲钨酸铵（5（NH4）2O·12WO3·5H2O））在自蔓延高温合成中使用镁（Mg）粉末作为还原剂。 构成：制造高纯度钨粉的方法包括以1:35的摩尔比混合仲钨酸铵和镁的步骤; 通过向混合物施加4至41吨的成形压力将形成的混合物形成颗粒; 在惰性气体气氛下将颗粒装入自蔓延的高温合成反应器中; 在自蔓延高温合成反应器中燃烧沉淀物; 从自蔓延的高温合成反应器排出所制造的烧制品; 使用稀释至20％的盐酸（HCl）浸出烧制品; 过滤渗滤液; 并洗涤过滤的钨（W）粉末。