公开(公告)号：KR100765074B1

公开(公告)日：2007-10-09

申请号：KR1020010082302

申请日：2001-12-21

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 김대영 ,  손진군 ,  이훈하 ,  오광중

IPC: C04B5/00

Abstract: 본 발명은 부식토를 이용한 납 함유 제강분진의 안정화 처리방법에 관한 것으로, 입도 1.5mm이하를 갖는 부식토와 KH
2 PO
4 (포타슘 디히드로겐 포스페이트)를 1:0.01 ~ 1:0.5중량비로 혼합하여 혼합개량제를 형성한 다음, 상기 혼합개량제와 납이 함유된 제강분진을 0.5:1 ~ 6:1 중량비로 혼합함을 특징으로 하는 제강분진의 안정화 처리방법이 제공된다.
본 발명에 따라 부식토와 KH
2 PO
4 (포타슘 디히드로겐 포스페이트)을 제강분진을 안정화시키는 혼합개량제로 이용함으로써 저렴한 비용으로 제강분진내에 함유된 중금속 성분중 특히, 납성분을 효과적으로 안정화시킬 수 있다.

포타슘 디히드로겐 포스페이트, 인산염, 중금속, 폐기물, 안정화제

公开(公告)号：KR100639116B1

公开(公告)日：2006-10-31

申请号：KR1020050096072

申请日：2005-10-12

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 변태봉 ,  이학봉 ,  이재영 ,  김대영

IPC: C04B5/06

Abstract: A method for reforming dusted slag from stainless steel refining process is provided to obtain hardened material with high rigidity sufficient to be employed in civil engineering materials and road bases and inhibit generation of high alkaline effluent from slag by suitably regulating water content of the dusted slag and reacting the slag with carbon dioxide gas. The method comprises a contact reaction of powder slag which is generated from stainless steel refining process with carbon dioxide gas having 5vol.% of concentration for more than 20 minutes The powder slag has water content controlled in the range of 10-30wt.% and particle size ranging from 70 to 80 micrometers.

Abstract translation: 本发明提供一种用不锈钢精炼工艺重整灰渣的方法，以获得足以用于土木工程材料和路基中的高刚性的硬化材料，并通过适当调节灰化渣的含水量来抑制由炉渣产生的高碱性流出物和 使炉渣与二氧化碳气体反应。 该方法包括由不锈钢精炼过程产生的粉末渣与浓度为5体积％的二氧化碳接触反应超过20分钟。粉末渣具有控制在10-30重量％范围内的水含量和颗粒 尺寸从70到80微米不等。

公开(公告)号：KR100609136B1

公开(公告)日：2006-08-04

申请号：KR1020000079524

申请日：2000-12-21

Applicant: 재단법인 포항산업과학연구원

Inventor： 김대영 ,  손진군 ,  이재영 ,  이훈하 ,  김병원

IPC: C04B18/14

CPC classification number: C04B28/08 ,  C04B2103/10 ,  Y02W30/94 ,  C04B7/02 ,  C04B18/14 ,  C04B18/141 ,  C04B40/0259

Abstract: 특정한 알칼리촉진제를 사용하여 강도 및 물리화학적 안정성이 우수한 고형화 브릭을 제조하는 방법에 관한 것으로, 고로슬러지와 고로슬러지 100중량부당 입도가 4000cm
2 /g 이상인 고로슬래그 분말과 포틀랜드시멘트가 고로슬래그 분말/포틀랜드 시멘트 중량비 0.25-4.0로 혼합된 고화재 30~50중량부로된 주원료에 제강더스트, 미니밀더스트 및 소결더스트로 부터 선택된 알칼리 촉진제를 상기 고로슬러지 100중량부당 1~3중량부로 첨가한 후, 수분의 양을 조절하고 혼합 및 압축성형한 다음 양생함으로써, 종래 점토벽돌의 압축강도 보다 압축강도가 우수한 브릭이 제조된다.
고로슬러지, 고화재, 알칼리 촉진제, 고형화 브릭

公开(公告)号：KR100605710B1

公开(公告)日：2006-08-01

申请号：KR1020010082297

申请日：2001-12-21

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 이재영 ,  김대영 ,  이훈하 ,  김일영 ,  손진군

IPC: C04B35/00

Abstract: 항균성 및 원적외선 방사능을 갖는 세라믹 분말에 관한 것으로 수용액에 포화용해시의 pH가 7.5-10.5로 항균성을 갖으며, 원적외선 방사율이 0.92이상인 원적외선 방사 분말이 제공된다.
항균성을 갖는 원적외선 방사 분말은 0.92이상의 방사율 및 우수한 항균성을 갖으며, 인체에 대하여는 안전한 것으로 바이오 제품등에 적용가능한 것이다. 나아가, 본 발명의 항균성 원적외선 방사분말은 백색분말로 다른 유색 안료와 함께 혼합하여 유색 원적외선 방사체 제조에 유용하게 사용될 수 있다.
원적외선 방사, 항균, Mg(OH)2, MgO, ZnO, Zn(OH)2

公开(公告)号：KR1020040056593A

公开(公告)日：2004-07-01

申请号：KR1020020083098

申请日：2002-12-24

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 김대영 ,  이훈하 ,  변태봉 ,  이재은

IPC: C04B18/14

CPC classification number: Y02W30/94

Abstract: PURPOSE: Provided is a method for manufacturing bricks with no formation of strong alkaline leachate, and stable physical and chemical properties by using a neutralizer such as clay and/or sludge generated from the acid recovery process. CONSTITUTION: The solidified products, bricks, comprise 100pts.wt. of steelmaking sludge, 30-50pts.wt. of solidifying material, a mixture of blast furnace slag( more than 4000cm¬2/g in size) and portland cement, 0.02-0.1pts.wt. of alkaline accelerator such as sintering dust, 10-50pts.wt of neutralizer such as clay and/or sludge generated from the acid recovery process, and water in a weight ratio of water/solidifying material of 0.2-0.5. The bricks having high compression strength of 80kg/cm2 are manufactured by mixing raw materials, pressure-forming and curing at room temperature over 28days.

Abstract translation: 目的：提供一种不形成强碱性浸出液的砖的制造方法，通过使用酸性回收法生成的粘土和/或污泥等中和剂，具有稳定的物理化学性质。 规定：固化产品，砖块，包括100pts.wt。 的炼钢污泥，30-50pts.wt。 的固化材料，高炉矿渣（尺寸超过4000cm2 / g）和波特兰水泥的混合物，0.02-0.1pts.wt。 的碱性促进剂如烧结粉尘，10-50pts.wt的中和剂如粘土和/或由酸回收过程产生的污泥，以及水/固化材料的重量比为0.2-0.5的水。 高压缩强度为80kg / cm2的砖通过在室温下混合原料，压力成型和固化28天制造。

公开(公告)号：KR100419621B1

公开(公告)日：2004-04-17

申请号：KR1019980056686

申请日：1998-12-21

Applicant: 재단법인 포항산업과학연구원 ,  주식회사 포스코

Inventor： 김대영 ,  김병원 ,  이재영 ,  이훈하 ,  손진군

IPC: B28B1/30

Abstract: PURPOSE: A method for preparing an aggregate characterized in that the aggregate prepared therefrom has excellent compression strength, while maintaining expansibility similar to natural sand even without seasoning-treatment. CONSTITUTION: A method for the preparation of the aggregate comprises: a step of crushing stainless steel slag and grinding the crushed stainless steel slag into a certain particle size; a step of primarily grading the grinded slag to remove pulverized slag; a step of undergoing gravity separation treatment and magnetic separation treatment to remove metallic components; and a step of secondarily grading the slag to remove pulverized slag. The aggregate for concrete remarkably improves compression strength of concrete, where the compression strength of the aggregate for concrete is about 475 - 525 kgf/cm¬2, compared with compression strength of natural sand, 440 kgf/cm¬2. In addition, the aggregate for concrete has a remarkably improved compression strength of 475 - 525 kgf/cm¬2, compared with a compression strength of sand, 440 kgf/cm¬2, and good expansibility even without seasoning, while existing stainless steel slag requires costly and time-consuming seasoning.

Abstract translation: 目的：一种制备聚集体的方法，其特征在于，即使没有调味处理，由其制备的聚集体也具有优异的压缩强度，同时保持与天然砂类似的膨胀性。 组成：一种制备骨料的方法，包括：将不锈钢渣粉碎并将粉碎的不锈钢渣研磨成一定粒度的步骤; 对磨碎的炉渣进行初级分级以除去粉碎的炉渣; 进行重力分离处理和磁分离处理以去除金属组分的步骤; 以及二次分级炉渣以除去粉碎炉渣的步骤。 混凝土骨料显着提高了混凝土的抗压强度，其中混凝土骨料的抗压强度约为475-525kgf / cm 2，与天然砂的抗压强度相比，为440kgf / cm 2。 此外，混凝土骨料的抗压强度显着提高了475-525kgf / cm 2，与砂的抗压强度相比，440kgf / cm 2不大，即使没有调味剂也具有良好的膨胀性，而现有的不锈钢矿渣 需要昂贵和耗时的调味品。

公开(公告)号：KR100401988B1

公开(公告)日：2003-12-18

申请号：KR1019980056536

申请日：1998-12-19

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 이훈하 ,  이재영 ,  손진군 ,  김대영

IPC: C01G49/00 ,  H01F1/10

Abstract: PURPOSE: A method for preparing the starting material for the preparation of Ni-Zn ferrites and a method for preparing Ni-Zn ferrites are provided, to recycle the Zn-Ni plating waste solution and to obtain more uniform Ni-Zn ferrites. CONSTITUTION: A starting material for preparing Ni-Zn ferrites is prepared by adding Fe¬2+ to the Zn-Ni plating waste solution to make the concentration 25-50 ppm; adding 0.5 mol times or more of oxygenated water based on the mol of Fe¬2+ to the waste solution; adding alkali to the solution to control the pH to be 3.5-5.5, thereby to generate sludgy; stirring the solution for 30 min to 3 hours at the temperature of 30-80°C to allow Si to be adsorbed; filtering the solution to remove impurities; adding NiCl2 to obtain the Zn_x Ni_(1-x) containing solution; adding KOH to the solution to control the pH to be 10-12 and to obtain hydroxide; filtering, washing and drying the hydroxide; and optionally heating the hydroxide at the temperature above 700°C to obtain Zn_x Ni_(10x) O powder. Ni-Zn ferrites are prepared by mixing the starting material with ferric oxide (Fe2O3) or copper oxide (CuO); and sintering the mixture at a temperature above 700°C.

Abstract translation: 目的：提供一种制备用于制备Ni-Zn铁氧体的起始材料的方法和制备Ni-Zn铁氧体的方法，以回收Zn-Ni电镀废液并获得更均匀的Ni-Zn铁酸盐。 构成：制备Ni-Zn铁氧体的起始材料是通过向Zn-Ni电镀废液中加入Fe 2+，使浓度为25-50ppm; 基于Fe 2+和Fe 2+的摩尔数，向废溶液中加入0.5摩尔倍或更多的氧化水; 向溶液中加入碱以控制pH值为3.5-5.5，从而产生泥状物; 在30-80℃的温度下搅拌该溶液30分钟至3小时以使硅被吸附; 过滤溶液以除去杂质; 加入NiCl 2得到含Zn_xNi_（1-x）的溶液; 向溶液中加入KOH以控制pH为10-12并获得氢氧化物; 过滤，洗涤并干燥氢氧化物; 并且任选地在高于700℃的温度下加热氢氧化物以获得Zn_xNi_（10x）O粉末。 通过将起始材料与氧化铁（Fe 2 O 3）或氧化铜（CuO）混合来制备Ni-Zn铁氧体; 并在高于700℃的温度下烧结该混合物。

公开(公告)号：KR1020020097351A

公开(公告)日：2002-12-31

申请号：KR1020010035133

申请日：2001-06-20

Applicant: 재단법인 포항산업과학연구원

Inventor： 손진군 ,  이훈하 ,  김대영 ,  이재영 ,  이재은

IPC: C09K17/02

CPC classification number: C09K17/02 ,  B09C1/08

Abstract: PURPOSE: A solidifier and a sewage solidifier are provided, to reduce the unpleasant odor from a solidifier used to solidify the industrial waste water and the sewage and to apply it as a middle top-soil layer in a reclaimed land. CONSTITUTION: The solidifier comprises 14.3-66.7 wt% of a furnace slag powder; and 33.3-85.7 wt% of semi-aqueous gypsum an/or gypsum anhydride. Optionally the solidifier comprises further 20 part by weight or less of quicklime as a pH adjusting agent based on 100 parts by weight of the solidifier. The sewage solidifier is prepared by mixing sewage with the solidifier and maturing the mixture, wherein the content of the furnace slag powder is 5-20 parts by weight based on 100 parts by weight of the sewage, and the content of the semi-aqueous gypsum an/or gypsum anhydride is 10-30 parts by weight based on 100 parts by weight of the sewage. The solidifier has a pH of 6-9 and the one axis compression strength of 0.5 kg/cm¬2 or more.

Abstract translation: 目的：提供固化器和污水固化器，以减少用于固化工业废水和污水的固化器的令人不快的气味，并将其作为中等顶层施加在回收土地上。 构成：固化器含14.3-66.7重量％的炉渣粉末; 和33.3-85.7重量％的半水性石膏和/或石膏酐。 任选地，基于100重量份的固化剂，固化剂还包含20重量份或更少的作为pH调节剂的生石灰。 污水固化器通过将污水与固化剂混合并熟化混合物制备，其中基于100重量份的污水，炉渣粉末的含量为5-20重量份，半水石膏的含量 一个或者石膏酸酐是基于100重量份的污水10-30重量份。 固化剂的pH为6-9，单轴压缩强度为0.5kg / cm 2以上。

公开(公告)号：KR100345742B1

公开(公告)日：2002-07-27

申请号：KR1019990058221

申请日：1999-12-16

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원 ,  주식회사 대성케미칼

Inventor： 이재영 ,  이훈하 ,  김대영 ,  손진군

IPC: C01G49/02

Abstract: 본발명은산화철과폐액을활용한니켈-동-아연페라이트원료제조방법에관한것이며, 그목적하는바는수산화물의슬러리농도를기존에비해적정범위로높여국부적인조성편차를막거나, NHOH 분산제를사용하여국부적인조성편차를막거나, 이들을병용하여국부적인조성편차를막음으로서, 산화철의투입시기를금속수산화물의수세/여과단계이후로가져갈수 있는공정의변경이가능한방법을제공하고자하는데있다. 상기목적을달성하기위한본 발명은 Ni, Zn, Cu 이온이함유된폐액을페라이트조성이되도록혼합하는단계; 상기혼합용액에알카리제를투여하여 pH가 10-13이되도록상승시키고수산화물생성물을만든후 이를여과수세하는단계; 상기수산화물생성물을물에슬러리농도 10-20가되도록분산시키거나, NHOH 분산제를 10~10몰농도로투입하거나, 상기분산과분산제투입을동시에행하는단계; 상기혼합용액에산화철(FeO)을혼합용액의금속수산화물몰농도의 0.95-1.00 배가되도록투여하는단계; 얻어진복합생성물을 600℃이상의온도에서열처리하는단계;를포함하는산화철과폐액을이용한 Ni-Cu-Zn페라이트원료제조방법에관한것을그 요지로한다.

公开(公告)号：KR1020020051942A

公开(公告)日：2002-07-02

申请号：KR1020000079907

申请日：2000-12-21

Applicant: 주식회사 포스코 ,  재단법인 포항산업과학연구원

Inventor： 이재영 ,  손진군 ,  김대영 ,  이훈하 ,  손대락 ,  송명곤

IPC: G01N23/08

CPC classification number: G01N23/16 ,  G01N2223/04 ,  G01N2223/101 ,  G01N2223/624

Abstract: PURPOSE: An apparatus and method is provided to evaluate shield efficiency and effect of steel plate in an accurate and convenient manner under a time varying magnetic field according to the change of frequency. CONSTITUTION: An apparatus(100) comprises a pair of cores(102,104) having coils(101,103) wound at the cores, respectively, and which are arranged to oppose each other with a predetermined gap between two cores; a voltage meter(105) connected to both ends of coil of one core from among two cores; and non-magnetic shield members(106,107) surrounding the cores such that a steel plate(S) is inserted into the gap formed between two cores. A method comprises a first step of measuring shield ability of a plate, making a calibration curve according to the thickness of the steel plate, and obtaining a formula indicating the relationship between the thickness and shield ability of steel plate from the calibration curve; a second step of calculating the expected value of shield ability when the thickness of steel plate is 1mm; a third step of measuring thickness of the other steel plate, and obtaining a shield ability correction coefficient by calculating the expected value of shield ability corresponding to the measured thickness by using the formula obtained in the first step, and dividing the expected value when the thickness of steel plate is 1mm by the expected value of shield ability calculated in the third step; a fourth step of measuring the shield ability of the other steel plate; and a fifth step of obtaining the correction shield ability by multiplying the measured value and the correction coefficient obtained in the third step, and comparing the degree of shield of steel plate with the correction shield ability.

Abstract translation: 目的：提供一种根据频率变化在时变磁场下以准确方便的方式评估钢板的屏蔽效率和效果的装置和方法。 构成：装置（100）包括一对具有分别缠绕在芯上的线圈（101,103）的芯（102,104），它们被布置为以两芯之间的预定间隙彼此相对; 一个电压计（105），其连接到两个磁芯中的一个磁芯的线圈的两端; 以及围绕芯的非磁性屏蔽构件（106,107），使得钢板（S）插入形成在两个芯之间的间隙中。 一种方法包括测量板的屏蔽能力的第一步骤，根据钢板的厚度制作校准曲线，并从校准曲线获得表示钢板的厚度和屏蔽能力之间的关系的公式; 当钢板厚度为1mm时，计算屏蔽能力的预期值的第二步; 测量另一钢板的厚度的第三步骤，并且通过使用在第一步骤中获得的公式计算与测量厚度相对应的屏蔽能力的期望值来获得屏蔽能力校正系数，并且当厚度 钢板在第三步计算的屏蔽能力的预期值为1mm; 测量另一钢板的屏蔽能力的第四步骤; 以及第五步骤，通过将测量值和在第三步骤中获得的校正系数相乘来获得校正屏蔽能力，并将钢板的屏蔽度与校正屏蔽能力进行比较。