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公开(公告)号：KR101303959B1
公开(公告)日：2013-09-05
申请号：KR1020130018077
申请日：2013-02-20
Applicant: 한국지질자원연구원
Abstract: PURPOSE: A continuous recovery method for the separation of uranium and vanadium is provided to apply an optimal leaching condition, thereby increasing the leaching rates of the uranium and the vanadium from a black slate and efficiently extracting the uranium and the vanadium from the black slate. CONSTITUTION: A continuous recovery method for the separation of uranium and vanadium includes: a step (S10) of crushing and pulverizing a black slate; a step (S20) of primarily leaching the crushed and pulverized black slate; a step (S30) of separating the primarily leached black slate into solid and liquid; a step (S40) of secondarily leaching the separated solid, and then secondarily separating the solid into solid and liquid; a step (S50) of re-leaching the secondarily separated liquid with the crushed and pulverized black slate, and then primarily separating the leached liquid into solid and liquid; a step (S60) of solvent-extracting the uranium from the primarily separated liquid; a step (S70) of washing and stripping a remaining organic solution after solvent-extracting the uranium; a step (S80) of depositing the uranium in a remaining stripping solution after stripping, separating the uranium into solid and liquid, drying a precipitate from the separation of the uranium, and then recovering the uranium; a step (S90) of oxidizing the vanadium from a remaining raffinate after solvent-extracting the uranium, and then solvent-extracting the vanadium; a step (S100) of washing and stripping the remaining organic solution after solvent-extracting the vanadium; and a step (S110) of depositing the vanadium in the remaining stripping solution after stripping, separating the vanadium into solid and liquid, calcining a precipitate from the separation of the vanadium, and then recovering the vanadium. [Reference numerals] (S10) Step of crushing and pulverizing a black slate; (S100) Step of washing and stripping the remaining organic solution; (S110) Step of depositing the vanadium in the remaining stripping solution, separating the vanadium into solid and liquid, calcining a precipitate from the separation of the vanadium, and then recovering the vanadium; (S20) Step of primarily leaching the crushed and pulverized black slate; (S30) Step of separating the primarily leached black slate into solid and liquid; (S40) Step of secondarily leaching the separated solid and then secondarily separating the solid into solid and liquid; (S50) Step of re-leaching the secondarily separated liquid with the crushed and pulverized black slate and then primarily separating the leached liquid into solid and liquid; (S60) Step of solvent-extracting the uranium from the primarily separated liquid; (S70) Step of washing and stripping a remaining organic solution after solvent-extracting the uranium; (S80) Step of depositing the uranium in a remaining stripping solution, separating the uranium into solid and liquid, drying a precipitate, and then recovering the uranium, and then recovering the uranium; (S90) Step of oxidizing the vanadium from a remaining raffinate and then solvent-extracting the vanadium
Abstract translation: 目的：提供分离铀和钒的连续回收方法，以应用最佳浸出条件，从而从黑色石板提高铀和钒的浸出率，并有效地从黑色石板中提取铀和钒。 构成：分离铀和钒的连续回收方法包括：粉碎和粉碎黑色板岩的步骤（S10）; 主要浸出粉碎和粉碎的黑色板岩的步骤（S20） 将主要沥滤的黑色板岩分离成固体和液体的步骤（S30）; 二次浸出分离固体的步骤（S40），然后将固体二次分离成固体和液体; 用粉碎和粉碎的黑色石板再次浸出二次分离的液体的步骤（S50），然后主要将浸出的液体分离成固体和液体; 从主要分离的液体中溶剂萃取铀的步骤（S60） 在溶剂萃取铀之后洗涤和汽提剩余的有机溶液的步骤（S70） 在剔除之后将铀沉积在剩余的汽提溶液中的步骤（S80），将铀分离成固体和液体，从分离铀干燥沉淀物，然后回收铀; 在溶剂萃取铀之后，将剩余的残液中的钒进行氧化，然后对钒进行溶剂萃取的工序（S90） 在溶剂提取钒之后洗涤和汽提剩余的有机溶液的步骤（S100）; 以及在汽提后将钒沉积在剩余的汽提溶液中的步骤（S110），将钒分离成固体和液体，从分离钒煅烧沉淀物，然后回收钒。 （S10）粉碎粉碎黑色板岩的工序; （S100）洗涤和除去剩余的有机溶液的步骤; （S110）将钒沉积在剩余的汽提溶液中，将钒分离成固体和液体，从钒的分离中煅烧沉淀物，然后回收钒; （S20）主要浸出粉碎和粉碎的黑色板岩的步骤; （S30）将主要浸出的黑色板岩分离成固体和液体的步骤; （S40）二次浸出分离后的固体，然后二次将固体分离成固体和液体的步骤; （S50）将被粉碎和粉碎的黑色石板再次浸出二次分离液体的步骤，然后主要将浸出的液体分离成固体和液体; （S60）从主要分离的液体中溶剂萃取铀的步骤; （S70）溶剂萃取铀后洗涤和汽提剩余的有机溶液的步骤; （S80）将铀沉积在剩余的汽提溶液中，将铀分成固体和液体，干燥沉淀物，然后回收铀，然后回收铀的步骤; （S90）从剩余的残液中氧化钒，然后溶剂萃取钒的步骤
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公开(公告)号：KR101923384B1
公开(公告)日：2018-11-29
申请号：KR1020180057114
申请日：2018-05-18
Applicant: 한국지질자원연구원
Abstract: 본발명은희토류광침출잔사로부터토륨을추출하는방법에있어서, (a) 침출잔사에산용액을첨가하고, 환원제인과산화수소와고분자알코올를첨가하여침출액을형성하는단계; 및 (b) 상기침출액에추출제를포함하는유기상을첨가하여토륨을용매추출하는단계를포함하는고분자알코올을이용한토륨의선택적추출방법을제공한다. 따라서환원제의사용량을감소시켜토륨추출공정의부하를감소시킬수 있다.
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Patent Agency Ranking
公开(公告)号：KR101727978B1
公开(公告)日：2017-04-19
申请号：KR1020160174886
申请日：2016-12-20
Applicant: 한국지질자원연구원
Abstract: 본발명의일 실시예는희토류광침출잔사에산 용액및 환원제를첨가하여침출액을제조하는단계(단계 1); 및상기제조된침출액에추출제를포함하는유기상을첨가하는단계(단계 2);를포함하는, 희토류광침출잔사로부터토륨의선택적추출방법을제공한다. 본발명의다른일 실시예는토륨, 세륨및 기타희토류금속을포함하는침출액에환원제를첨가하는단계(단계 i); 및상기환원제첨가된침출액에추출제를포함하는유기상을첨가하는단계(단계 ii);를포함하는, 희토류금속침출액으로부터토륨의선택적추출방법을제공한다.
Abstract translation: 本发明的一个实施方案是生产浸出溶液的方法，其包括以下步骤：（步骤1）通过将酸溶液和还原剂加入到稀土光浸出残渣中来制备浸出溶液; 向制备的浸出液中加入含有萃取剂的有机相的步骤（步骤2），其中提供从稀土光浸出残渣中选择性萃取钍。 本发明的另一个实施方案是一种制造浸出液的方法，包括：将还原剂加入到包含钍，铈和其它稀土金属的浸出溶液中（步骤i）; 以及向添加有还原剂的浸出液中添加含有萃取剂的有机相的工序（ii），其中，提供从稀土金属浸出液中选择性地萃取钍。
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公开(公告)号：KR101452179B1
公开(公告)日：2014-10-24
申请号：KR1020140028508
申请日：2014-03-11
Applicant: 한국지질자원연구원
CPC classification number: C22B34/365 , C22B3/12 , C22B3/44 , C22B7/009 , C22B34/225 , Y02P10/23 , Y02P10/234
Abstract: The present invention relates to a recovery method of vanadium and tungsten from leaching solution of denitration spent catalyst and, more specifically, to a recovery method of vanadium and tungsten from leaching solution of denitration spent catalyst comprising a step for precipitating and recovering vanadium by adding a calcium compound after adding acid to leaching solution of denitration spent catalyst; and a step for precipitating and recovering tungsten by recovering the vanadium, adding acid to the remaining leaching solution, and adding a calcium compound.
Abstract translation: 本发明涉及脱硝废催化剂浸出溶液中钒和钨的回收方法，更具体地说，涉及一种脱硝废催化剂浸出溶液中的钒和钨的回收方法，该方法包括通过加入一种沉淀和回收钒的步骤 钙化合物加酸后浸出脱硝废催化剂溶液; 以及通过回收钒，向剩余的浸出溶液中加入酸并加入钙化合物来沉淀和回收钨的步骤。
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公开(公告)号：KR101923385B1
公开(公告)日：2018-11-29
申请号：KR1020180057115
申请日：2018-05-18
Applicant: 한국지질자원연구원
Abstract: 본발명은희토류광침출잔사로부터추출액을형성하고토륨을탈거하는방법에있어서, (a) 침출잔사에산용액을첨가하고, 환원제를첨가하여침출액을형성하는단계; (b) 상기침출액에추출제를포함하는유기상을첨가하여토륨을용매추출하는단계; 및 (c) 토륨이추출된유기상에염산과염을첨가하여토륨을탈거하는단계;를포함하는염을이용한토륨의선택적탈거방법에관한것이다. 따라서염산을사용하여토륨을탈거하는경우와비교하여염산의사용량을감소시켜탈거공정의효율을증가시키고, 환경에악영향을미치는것을방지할수 있다.
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公开(公告)号：KR101290151B1
公开(公告)日：2013-08-07
申请号：KR1020130017919
申请日：2013-02-20
Applicant: 한국지질자원연구원
Abstract: PURPOSE: A recovering method of uranium and vanadium from a black slate is provided to effectively leach uranium and vanadium included in a black slate and to economically collect the uranium and vanadium from a solution left behind after the leaching. CONSTITUTION: A recovering method of uranium and vanadium from a black slate comprises the steps of: (S10) pulverizing and fracturing a black slate, (S20) firstly leaching the pulverized and fractured black slate, (S30) separating the first leached material into solid and liquid, (S40) extracting uranium from the liquid separated from the first solid-liquid separation and (S50) extracting vanadium after oxidizing the remaining vanadium of the solvent extraction of uranium. [Reference numerals] (S10) Processing a mineral after pulverization and fracturing; (S20) Firstly leaching the processed mineral; (S30) Firstly separating the firstly leached material into solid and liquid; (S40) Solvent-extracting uranium from the liquid separated from the first solid-liquid separation; (S50) Solvent-extracting vanadium after oxidizing remaining raffinate
Abstract translation: 目的：提供黑色板岩铀和钒的回收方法，以有效地浸出黑板岩中的铀和钒，并从浸出后留下的溶液中经济地收集铀和钒。 构成：从黑色板岩中回收铀和钒的方法包括以下步骤：（S10）粉碎和压裂黑色板岩;（S20）首先浸出粉碎和破碎的黑色板岩，（S30）将第一浸出物分离成固体 和液体，（S40）从第一固液分离出的液体中提取铀，（S50）在氧化余下的钒溶剂萃取铀之后提取钒。 （附图标记）（S10）粉碎和压裂后处理矿物; （S20）首先浸出加工矿物; （S30）首先将第一浸出物分离成固体和液体; （S40）从第一固液分离液中分离的溶液中提取铀; （S50）氧化剩余残液后溶剂萃取钒
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公开(公告)号：KR101281579B1
公开(公告)日：2013-07-03
申请号：KR1020120099496
申请日：2012-09-07
Applicant: 한국지질자원연구원
CPC classification number: C22B34/365 , C22B1/005 , C22B3/22 , C22B7/009 , C22B34/225 , Y02P10/214 , Y02P10/23 , Y02P10/234
Abstract: PURPOSE: A method of leaching a valuable metal included in catalyst of denitrification using a roasting and a water leaching is provided to leach a valuable metal such as vanadium (V), and tungsten (W) etc. included in a denitrification catalyst environment-friendly, economically, and very efficiently through a high temperature roasting and a water leaching. CONSTITUTION: A method of leaching a valuable metal included in catalyst of denitrification using a roasting and a water leaching comprises the following steps: a mixture is formed by mixing an alkali metal compound with a denitrification catalyst including vanadium (V), and tungsten (W) in a form of an oxide. 15-30 weight% of the alkali metal compound is mixed about 100 weight% of the denitrification catalyst (S110); a product of roasting including vanadic acid sodium (NaVO3), and tungstate acid sodium (Na2WO4) is generated by roasting a mixture (S120); and vanadic acid sodium, and tungstate acid sodium are water leached in a form of vanadic acid ion (VO3-) and tungsten acid ion (WO42-) by injecting a product of roasting in a water (S130). [Reference numerals] (AA) Start; (BB) End; (S110) Mix an alkali metal compound with a denitrification catalyst; (S120) High temperature roasting; (S130) Leach water
Abstract translation: 目的：提供一种利用焙烧和浸出浸出催化脱氮催化剂中有价值金属的方法浸出脱氮催化剂中有价值的金属如钒（V）和钨（W）等环保型 经济高效地通过高温焙烧和水浸。 构成：使用焙烧和浸出浸出含有催化剂的有价金属的方法包括以下步骤：通过将碱金属化合物与包含钒（V）和钨（W）的脱氮催化剂混合形成混合物 ）以氧化物的形式。 15-30重量％的碱金属化合物混合约100重量％的脱氮催化剂（S110）; 通过焙烧混合物（S120）产生焙烧产物，包括钒酸钠（NaVO 3）和钨酸钠（Na 2 WO 4）。 和钒酸钠和钨酸钠通过在水中注入焙烧产物（S130），以钒酸离子（VO 3 - ）和钨酸根离子（WO42-）的形式被水浸出。 （附图标记）（AA）开始; （BB）结束; （S110）将碱金属化合物与脱氮催化剂混合; （S120）高温焙烧; （S130）浸水
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