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公开(公告)号：KR1020020014075A
公开(公告)日：2002-02-25
申请号：KR1020000047155
申请日：2000-08-16
Applicant: 한국과학기술연구원
IPC: C02F1/52
Abstract: PURPOSE: A treatment method for chemical mechanical polishing wastewater is provided which easily separates SiO2 particulate contained in wastewater generated in the chemical mechanical polishing process with a single layered filtration membrane and shortly backwashes the filtration membrane by forming a large sized low tackiness particulate aggregation. CONSTITUTION: The treatment method for chemical mechanical polishing wastewater comprises the steps of transferring wastewater generated in the chemical mechanical polishing process to a first rapid mixing tank(110), and agitating the materials by putting a calcium compound into the wastewater transferred to the first rapid mixing tank; transferring the wastewater in the first rapid mixing tank to a second rapid mixing tank(120), and agitating the materials by putting a cationic polymer coagulant into the wastewater transferred to the second rapid mixing tank; transferring the wastewater in the second rapid mixing tank to a third rapid mixing tank(130), and agitating the materials by putting alum into the wastewater transferred to the third rapid mixing tank; transferring the wastewater in the third rapid mixing tank to a fourth rapid mixing tank(140), and agitating the materials by putting an anionic polymer coagulant into the wastewater transferred to the fourth rapid mixing tank; and transferring the wastewater in the fourth rapid mixing tank to a slow mixing tank(200), and agitating the wastewater transferred to the slow mixing tank at a speed slower than an agitation speed in the fourth rapid mixing tank.
Abstract translation: 目的：提供化学机械抛光废水的处理方法，使化学机械抛光过程中产生的废水中的SiO2颗粒与单层过滤膜分离，并通过形成大尺寸低粘性颗粒聚集物短时间反冲洗过滤膜。 构成：化学机械抛光废水的处理方法包括将在化学机械抛光工艺中产生的废水转移到第一快速混合罐（110）的步骤，通过将钙化合物放入转移到第一快速混合罐 混合罐 将第一快速混合罐中的废水转移到第二快速混合罐（120），并通过将阳离子聚合物凝结剂放入转移到第二快速混合罐的废水中来搅拌材料; 将第二快速混合罐中的废水转移到第三快速混合罐（130）中，并通过将明矾放入转移到第三快速混合罐的废水中来搅拌物料; 将第三快速混合罐中的废水转移到第四快速混合罐（140），并通过将阴离子聚合物凝结剂放入转移到第四快速混合罐的废水中来搅拌材料; 并将第四快速混合罐中的废水转移到缓慢混合罐（200）中，并且以比第四快速混合罐中的搅拌速度慢的速度搅拌转移到缓慢混合罐中的废水。
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公开(公告)号：KR100316139B1
公开(公告)日：2001-12-20
申请号：KR1019990001053
申请日：1999-01-15
Applicant: 한국과학기술연구원 , 에스케이케미칼주식회사
IPC: C07C7/10
Abstract: 디메틸나프탈렌이성체들을포함한나프탈렌계혼합물로부터재결정법이나분별증류법등을통해 2,6-디메틸나프탈렌을포함한디메틸나프탈렌이성질체의혼합물을선택적으로분리한후에, 용매존재하에서의가압결정에의해이로부터고순도의 2,6-디메틸나프탈렌을분리함으로써, 분리효율을향상시키고산화성고분자반응을억제시켜높은순도의분리를용이하게하며, 반응처리시간을현저히단축시켜생산성을향상시킬수 있다.
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公开(公告)号：KR1020000051069A
公开(公告)日：2000-08-16
申请号：KR1019990001307
申请日：1999-01-18
Applicant: 한국과학기술연구원
IPC: C01G23/00
CPC classification number: C01G23/006 , C01P2004/64
Abstract: PURPOSE: A process for preparing barium titanate powder by the hydrothermal reaction of a titanium organic metal compound with a barium salt is provided which gives the superfine barium titanate powder at a relatively low temperature. CONSTITUTION: A process for producing a stoichiometric quantity of barium titanate useful in the field of electronics comprises the steps of diluting a titanium 2-alkoxyethoxide precursor in an organic solvent, forming a barium-titanium complex by mixing with an aqueous solution of a barium salt, carrying out hydrothermal reaction after addition to a concentrated alkali solution at a pH higher than 14, and purifying through washing processes. The process can produce the title compound with a uniform particle size without using a high-temperature electric furnace.
Abstract translation: 目的：提供通过钛有机金属化合物与钡盐的水热反应制备钛酸钡粉末的方法，其使超细钛酸钡粉末处于较低温度。 构成：用于生产电子学领域的化学计量的钛酸钡的方法包括以下步骤：在有机溶剂中稀释钛2-烷氧基乙醇前体，通过与钡盐水溶液混合形成钡 - 钛络合物 在加到pH高于14的浓碱溶液中进行水热反应，并通过洗涤过程进行纯化。 该方法可以在不使用高温电炉的情况下制备具有均匀粒度的标题化合物。
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Patent Agency Ranking
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公开(公告)号：KR1019960013051B1
公开(公告)日：1996-09-30
申请号：KR1019930019689
申请日：1993-09-24
Applicant: 한국과학기술연구원
IPC: A01N25/18
Abstract: The slow released agrochemical is prepared by melting 0.5-50wt.% rosin in an organic solvent to obtain a basic coating solution, coating the granules of agrochemical by spraying it to 2-40wt.% of total weight, recoating them with the second coating solution which is made by melting 0.05-50wt.% organic polymer to an organic solvent.
Abstract translation: 慢释放的农用化学品是通过在有机溶剂中熔化0.5-50wt％的松香来制备的，以获得碱性涂料溶液，通过将其喷雾至总重量的2-40wt％，涂覆农药的颗粒，用第二涂布溶液 其通过将0.05-50重量％的有机聚合物熔化成有机溶剂而制成。
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公开(公告)号：KR101401418B1
公开(公告)日：2014-06-02
申请号：KR1020120120114
申请日：2012-10-29
Applicant: 한국과학기술연구원
Abstract: 본 발명은 고체산 혼합물을 이용한 수소 제조 방법에 관한 것으로, 보다 상세하게는 (a) 탄소체와 고체산을 혼합하여 고체산 혼합물을 제조하고, 상기 제조된 고체산 혼합물을 반응기에 투입하는 고체산 혼합물 투입 단계; (b) 반응기에 기화된 메탄/알코올/물을 포함하는 구성된 원료 혼합물을 투입하는 원료 혼합물 투입 단계; (c) 상기 투입된 고체산 혼합물은 상기 원료 혼합물에 대해 촉매로 작용하여 상기 원료 혼합물을 분해하고, 상기 분해 반응의 결과로 수소를 발생시키는 수소 발생 단계; 및 (d) 상기 발생된 수소를 반응기 외부로 배출시키는 수소 배출 단계; 를 포함하는 수소 제조 방법을 제공함으로써 경제성과 조업 안정성을 현저히 향상시킨 수소 제조 방법을 제공한다.
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公开(公告)号：KR101291601B1
公开(公告)日：2013-07-30
申请号：KR1020110078955
申请日：2011-08-09
Applicant: 한국과학기술연구원
Abstract: 본 발명은 고체산을 이용한 물 분해에 의한 수소의 제조방법에 관한 것으로, 구체적으로는 내열 및 내압 재질로 이루어진 반응기 내부의 온도를 500 ~ 1500K로 유지시킨 상태에서 물이 흡착된 고체산을 연속적으로 반응기 내부로 투입하고, 고체산에 흡착된 물을 분해하여 수소를 생산하는 과정과 물 분해에 사용된 고체산을 반응기 외부로 배출시켜 다시 물을 흡착시킨 후 반응기에 재투입하는 과정을 포함한다. 본 발명에 의하면 원하는 양만큼의 물을 고체산에 흡착시키고, 연속적으로 투입함으로써 물 분해에 의한 수소의 생산량을 증가시킬 수 있으며, 따라서, 물의 열분해방식에 의한 수소생산의 경제성을 크게 향상시킬 수 있다.
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