-
公开(公告)号：KR1020150076314A
公开(公告)日：2015-07-07
申请号：KR1020130163730
申请日：2013-12-26
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김대영
CPC classification number: Y02P10/212 , C04B11/26
Abstract: 본발명은니켈습식제련공정부산물로부터석고를제조하는방법에관한것으로, 니켈습식제련공정에서부산물로발생하는철 이온함유용액으로부터철광석과, 염화칼슘(CaCl)을포함하는철광석회수여액을분리및 회수하는단계; 회수된철광석회수여액에황산(HSO)을투입하는단계; 및투입된황산과상기철광석회수여액내 염화칼슘이반응하여이수석고(CaSO·2HO), 반수석고(CaSO·1/2HO) 및무수석고(CaSO)를이루는그룹중 적어도하나의석고를제조하는단계를포함하며, 상기황산은황산/염화칼슘당량비가 0.5 내지 1이되도록투입된다. 본발명은니켈습식제련공정에서부산물로발생되는철 이온함유용액을이용하여고품위의다양한석고와염산을제조할수 있어, 이를각각토목건축용소재나공정사용원료로사용할수 있으므로, 원가절감의효과를얻을수 있다.
Abstract translation: 本发明涉及从镍湿法冶金工艺的副产物生产石膏的方法。 该方法包括以下步骤：从由镍湿法冶金工艺作为副产物产生的含铁离子的溶液中分离收集含铁矿石和氯化钙（CaCl 2）的铁矿石滤液; 在收集的铁矿石中加入硫酸（H_2SO_4）滤液; 并从由二水石膏（CaSO 4·2H 2 O），半水石膏（CaSO 4·1 / 2H 2 O）和无水石膏（CaSO 4）组成的组中生产至少一块石膏。 进料硫酸以确保硫酸/氯化钙当量比为0.5至1.在本发明中，通过使用在镍湿法冶金工艺中产生的作为副产物产生的含铁离子的溶液，各种高品质 可以生产石膏和盐酸作为土木工程和建筑材料，或用于该工艺的原料，从而降低原材料成本。
-
公开(公告)号：KR101359121B1
公开(公告)日：2014-02-06
申请号：KR1020110145186
申请日：2011-12-28
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
CPC classification number: Y02P10/234
Abstract: 본 발명은 니켈 습식 제련 공정 중에 발생되는 폐기물을 처리하는 방법에 관한 것으로서, 수소함유가스로 환원된 니켈 광석의 침출용 환원광을 슬러리화하는 슬러리화 단계; 상기 슬러리에 염산 또는 황산을 첨가하여 상기 침출용 환원광으로부터 니켈을 용해하여 니켈이온을 침출하여 침출액을 제조하는 침출 단계; 및 상기 침출액에 수소함유가스로 환원된 니켈 광석의 석출용 환원광을 침출용 환원광과 석출용 환원광의 전체 중량에 대하여 10 내지 40중량% 범위로 첨가하여 상기 니켈 광석 중의 철을 상기 침출액의 니켈이온으로 치환하여 페로니켈 금속으로 석출시키는 석출 단계를 포함하는 니켈 습식제련 공정 중에 발생되는 폐기물의 처리방법으로서, 상기 석출단계 후에 페로니켈 금속을 분리하여 폐기물인 철 이온 함유 용액을 얻는 단계; 및 상기 철 이온 함유 용액에 Ca 함유 알칼리제를 투입하고, 공기를 주입하여 철을 산화 반응시킴으로써 마그네타이트를 생성시키는 단계를 포함하는 니켈 습식제련 공정 중에 발생되는 폐기물의 처리방법을 제공한다.
-
公开(公告)号：KR1020130068896A
公开(公告)日：2013-06-26
申请号：KR1020110136337
申请日：2011-12-16
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김대영
IPC: C22B1/14
Abstract: PURPOSE: A solidification briquette and a manufacturing method thereof are provided to have excellent initial and latter intensity expression, and to reduce manufacturing cost by using by-product steel. CONSTITUTION: A manufacturing method of solidification briquette comprises the following steps of; preparing(S1) a raw material including by-product steel, the inorganic solidifying agent of 5 to 10wt% for the by-product steel 100wt%, and the organic binder of 6 to 12wt%; mixing(S2) the raw material by putting water to the raw material; obtaining(S3) briquette by compression-molding the mixed raw material; and curing(S4) the briquette. The inorganic solidifying agent is blast furnace slag powder and slag cement. The blast furnace slag powder has the weight ratio of 0.25 to 4.0 for slag cement. [Reference numerals] (S1) Material preparing step; (S2) Material mixing step; (S3) Compression molding step; (S4) Curing step
Abstract translation: 目的：提供固化团块及其制造方法，以具有优异的初始强度和后者强度表达，并且通过使用副产物钢来降低制造成本。 构成：凝固团块的制造方法包括以下步骤： 制备（S1）包括副产物钢的原料，对于副产物钢为100重量％的无机固化剂为5〜10重量％，有机粘合剂为6〜12重量％ 通过将水投入原料来混合（S2）原料; 通过压缩混合原料获得（S3）压块; 并固化（S4）煤块。 无机凝固剂是高炉渣粉和矿渣水泥。 炉渣水泥粉末的重量比为0.25〜4.0。 （参考号）（S1）材料制备步骤; （S2）材料混合步骤; （S3）压缩成型步骤; （S4）固化步骤
-
公开(公告)号：KR1020100110222A
公开(公告)日：2010-10-12
申请号：KR1020090028688
申请日：2009-04-02
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Inventor： 김대영
IPC: C21B3/06
CPC classification number: Y02W30/543 , C21B3/06 , C21B3/08 , C21B2200/00 , F27D15/02 , F27D17/004
Abstract: PURPOSE: A method for treating molten slag of a blast furnace, cool melting steel-manufacturing slag using roll, air or mixed fluid, is provided to manufacture slag powder by consecutively transferring melting slag to a pulverizing device. CONSTITUTION: A method for treating molten slag of a blast furnace is as follows. A melting blast furnace slag(11) is provided to a rotation roll(22). The slag is frozen by the connection between the rotation roll and the slag. A first heat exchanger(23) is frozen using miscible fluid. The vitrification ratio of the slag is over 95%. The slag is preliminarily pulverized.
Abstract translation: 目的：提供一种处理高炉熔渣的方法，使用辊，空气或混合流体冷熔钢制造炉渣，通过将熔渣连续转移至粉碎装置来制造炉渣粉末。 构成：用于处理高炉熔渣的方法如下。 将熔化高炉矿渣（11）设置到旋转辊（22）上。 炉渣通过旋转辊和炉渣之间的连接被冷冻。 第一热交换器（23）使用可混溶流体冷冻。 渣的玻璃化率超过95％。 炉渣预先粉碎。
-
公开(公告)号：KR1020090067676A
公开(公告)日：2009-06-25
申请号：KR1020070135417
申请日：2007-12-21
Applicant: 재단법인 포항산업과학연구원
Inventor： 김대영
IPC: C22B3/06
CPC classification number: Y02P10/234 , C22B3/04 , C23G1/08
Abstract: A method for the leaching of precious metal from manganese nodules by using steel pickling waste solution is provided to improve the leaching reaction speed of precious metal by Fe^2+ contained in steel pickling waste solution by using the waste solution instead of using hydrochloric acid solution at low cost. A method for the leaching of precious metal from manganese nodules includes the steps of crushing manganese nodules into the particle size of 10 mm or less, carrying out leaching by using steel pickling waste solution of 25°C or higher for 15minutes or longer, and obtaining filtrate containing precious metal by filtering insoluble residues.
Abstract translation: 提供一种通过使用钢酸洗废液从锰结核浸出贵金属的方法，通过使用废溶液代替使用盐酸溶液来提高含铁废酸液中Fe 2+的贵金属的浸出反应速度 以低成本。 从锰结核浸出贵金属的方法包括将锰结核粉碎成10mm以下的粒径的步骤，使用25℃以上的钢酸洗废液进行浸出15分钟以上，得到 通过过滤不溶性残留物含有贵金属的滤液。
-
Patent Agency Ranking
公开(公告)号：KR1020090067675A
公开(公告)日：2009-06-25
申请号：KR1020070135416
申请日：2007-12-21
Applicant: 재단법인 포항산업과학연구원
Inventor： 김대영
Abstract: A method for preparation of precious metal compounds and sodium sulfate from manganese nodules is provide to collect precious metal compounds such as Mn, Fe, Ni and the like in the sludge shape and prepare sodium sulfate solution from manganese nodules simultaneously at low cost. A method for preparation of precious metal compounds and sodium sulfate from manganese nodules includes the steps of crushing manganese nodules, leaching the result in the presence of sulfuric acid, filtering the insoluble residues to prepare filtered solution containing precious metal, and neutralizing the filtrate by using NaOh as an alkaline neutralizing agent for recovering precious metal in the sludge type while obtaining sodium sulfate solution as filtrate.
Abstract translation: 提供从锰结核制备贵金属化合物和硫酸钠的方法，以淤渣形式收集Mn，Fe，Ni等贵金属化合物，并以低成本同时制备锰结核的硫酸钠溶液。 从锰结核制备贵金属化合物和硫酸钠的方法包括粉碎锰结核的步骤，在硫酸存在下浸出结果，过滤不溶残渣以制备含有贵金属的过滤溶液，并通过使用 NaOh作为用于回收污泥中的贵金属的碱性中和剂，同时得到硫酸钠溶液作为滤液。
-
公开(公告)号：KR1020080057671A
公开(公告)日：2008-06-25
申请号：KR1020060131260
申请日：2006-12-20
Applicant: 재단법인 포항산업과학연구원
Inventor： 김대영
CPC classification number: C04B28/04 , C04B2111/00017 , Y02W30/94 , C04B18/14 , C04B18/141 , C04B20/0076 , C04B22/144 , C04B2103/10 , C04B14/10
Abstract: A solidified brick is provided to have excellent physicochemical properties such as strength, and to prevent environmental pollution caused by strongly alkaline leachate and heavy metals. A solidified brick includes 100 parts by weight of a steel sludge, 0.02-0.1 parts by weight of an alkaline accelerator, 30-50 parts by weight of a solidifier, and 10-50 parts by weight of a neutralizer. The solidifier is obtained by blending blast furnace slag powder having a particle size of 4000 cm^2/g or larger with general portland cement in a weight ratio ranging from 1:0.25 to 1:4. The neutralizer comprises phosphogypsum or a mixture of clay and phosphogypsum.
Abstract translation: 提供固化砖具有优异的物理化学性质如强度，并防止强碱性浸出液和重金属引起的环境污染。 固化砖包括100重量份的钢污泥，0.02-0.1重量份的碱性促进剂，30-50重量份的固化剂和10-50重量份的中和剂。 通过将粒度为4000cm 2 / g以上的高炉矿渣粉末与普通波特兰水泥以1:0.25至1:4的重量比混合而获得。 中和剂包括磷石膏或粘土和磷石膏的混合物。
-
公开(公告)号：KR1020080057669A
公开(公告)日：2008-06-25
申请号：KR1020060131258
申请日：2006-12-20
Applicant: 재단법인 포항산업과학연구원
Inventor： 김대영
CPC classification number: Y02W30/94
Abstract: A method for manufacturing clay bricks is provided to reduce the firing deformation of clay bricks, as compared with the conventional manufacturing method of clay bricks. A method for manufacturing clay bricks includes the steps of: blending clay with particle size-controlled dephosphorized slag to prepare a material; adding water to the material, and kneading the admixture; vacuum-pugging the kneaded material, molding the pugged material into a brick, and drying the brick to produce a semi-finished product; and firing the semi-finished product. The material comprises 70-40wt% of clay and 30-60wt% of a particle size-controlled dephosphorized slag.
Abstract translation: 与传统的粘土砖的制造方法相比，提供粘土砖的制造方法，以减少粘土砖的烧成变形。 制造粘土砖的方法包括以下步骤：将粘土与粒径控制的脱磷渣混合以制备材料; 向材料中加入水，并捏合混合物; 真空揉捏捏合的材料，将被挤压的材料成型成砖，并干燥砖以生产半成品; 并点燃半成品。 该材料包含70-40重量％的粘土和30-60重量％的粒度控制的脱磷渣。
-
公开(公告)号：KR1020080057005A
公开(公告)日：2008-06-24
申请号：KR1020060130292
申请日：2006-12-19
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Abstract: A method of decreasing fluorine elution from the slag by adding ammonium chloride to slag generated in a powder phase in the refining process of the stainless steelmaking process and reacting a mixture of the ammonium chloride and the slag with carbon dioxide gas, thereby forming a calcium carbonate coating layer on a surface of the slag is provided. A method of decreasing fluorine elution from pulverized stainless steel slag comprises adding an aqueous ammonium chloride(NH3Cl) solution to slag and reacting a mixture of the aqueous ammonium chloride solution and the slag with carbon dioxide to form a calcium carbonate(CaCO3) coating layer on a surface of the slag. The aqueous ammonium chloride solution has a concentration of 5 to 10%. The aqueous ammonium chloride solution has a water content of 5 to 20% relative to the slag. The method comprises reacting the slag with the carbon dioxide for at least 120 minutes.
Abstract translation: 在不锈钢制造方法的精炼过程中，通过向粉末相中生成的炉渣中加入氯化铵，使氯化铵和炉渣的混合物与二氧化碳气体反应从而减少氟的洗脱方法，由此形成碳酸钙 提供了炉渣表面上的涂层。 从粉碎的不锈钢渣中减少氟洗脱的方法包括向炉渣中加入氯化铵水溶液（NH 3 Cl）溶液，并将氯化铵水溶液和炉渣的混合物与二氧化碳反应，形成碳酸钙（CaCO 3）涂层 渣的表面。 氯化铵水溶液的浓度为5〜10％。 氯化铵水溶液相对于炉渣的含水量为5〜20％。 该方法包括使炉渣与二氧化碳反应至少120分钟。
-
公开(公告)号：KR100674623B1
公开(公告)日：2007-01-29
申请号：KR1020050126796
申请日：2005-12-21
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: C02F1/66 , C02F1/461 , C02F9/00 , C02F103/16
CPC classification number: C02F1/66 , C02F1/4618 , C02F9/00 , C02F2103/16
Abstract: A calcium-based material treating method for inhibiting pH increase of dissolution water is provided to effectively inhibit generation of alkaline water by containing an aqueous sucrose solution with proper concentration in a material comprising calcium as a principal constituent and reacting the aqueous sucrose solution with carbon dioxide gas for not less than a proper duration of time, thereby forming a calcium carbonate layer on a surface of the calcium-based material. The calcium-based material treating method for inhibiting pH increase of dissolution water comprises the processes of: adding an aqueous sucrose solution with a concentration range of 2 to 35% to a calcium-based material that increases pH of dissolution water; adjusting moisture content of the aqueous sucrose solution added calcium-based material to a range of 0.5 to 35%; and bringing carbon dioxide gas into contact with a calcium-based material of which moisture content is adjusted after the aqueous sucrose solution is added to the calcium-based material, thereby reacting the carbon dioxide gas with the calcium-based material for at least 15 minutes.
Abstract translation: 提供一种抑制溶解水pH升高的钙基材料处理方法，通过在含钙为主要成分的材料中含有适当浓度的蔗糖水溶液，有效地抑制碱性水的产生，并使蔗糖水溶液与二氧化碳 气体不低于适当的持续时间，从而在钙基材料的表面上形成碳酸钙层。 用于抑制溶解水的pH增加的钙基材料处理方法包括以下步骤：向增加溶解水的pH的钙基材料中加入浓度范围为2至35％的蔗糖水溶液; 将加入的钙基材料的蔗糖水溶液的水分含量调节至0.5〜35％的范围; 并且将二氧化碳气体与在蔗糖水溶液加入钙基材料之后调节水分含量的钙基材料接触，从而使二氧化碳气体与钙基材料反应至少15分钟 。
-
-
-
-
-
-
-
-
-
Search Results
200
records
(took 0.026 seconds)
