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公开(公告)号：KR100569084B1
公开(公告)日：2006-04-07
申请号：KR1020040067483
申请日：2004-08-26
Applicant: 한국화학연구원
CPC classification number: Y02C20/10
Abstract: 본 발명은 이중촉매층을 이용한 질소산화물의 정화방법에 관한 것으로, 보다 상세하게는 질소산화물 환원촉매 Pt/V
X -P
Y -(히드록시기 보유물질)
Z 를 사용하여 질소산화물을 질소와 아산화질소로 환원시키고, 이때 생성된 아산화질소를 아산화질소 분해촉매 Rh-Ag/CeO
2 /M1-M2-M3를 사용하여 질소와 산소로 다시 분해시키는 방법에 관한 것으로, 질소산화물 환원촉매 상에서 질소산화물의 전환율은 100-300℃ 온도범위에서 95% 이상이고, 아산화질소 분해촉매 상에서 아산화질소의 질소로의 전환율이 100%이므로 본 발명의 이중촉매층을 사용함으로써 질소산화물을 95% 이상 질소로 전환시킬 수 있다.
질소산화물, 이중촉매층, 선택적환원, 아산화질소 분해-
12.发明公开
公开(公告)号：KR1020040024775A
公开(公告)日：2004-03-22
申请号：KR1020020056218
申请日：2002-09-16
Applicant: 한국화학연구원
IPC: B01J27/18
CPC classification number: B01J37/0201 , B01D53/8659 , B01J27/16 , Y02C20/30
Abstract: PURPOSE: An aluminum oxide catalyst for removing the perfluoro compounds by decomposing perfluoro compounds that is a global warming gas generated from semiconductor manufacturing industries is provided, and a method for decomposing thus removing perfluoro compounds in waste gas using the catalyst is provided. CONSTITUTION: The aluminum oxide catalyst for decomposing thus removing perfluoro compounds in waste gas is characterized in that phosphorus constituent is supported onto the surface of aluminum oxide in such a way that a mole ratio of aluminum (Al)/phosphorus (P) is 10 to 100, wherein the aluminum oxide is selected from gamma alumina (γ-Al2O3), aluminum trihydroxide, boehmite and pseudo-boehmite, wherein the phosphorus constituent is diammonium hydrophosphate ((NH3)2HPO4), ammonium dihydrophosphate (NH3H2PO4) or phosphoric acid (H3PO4), and wherein the perfluoro compounds are one or more compounds selected from CF4, CHF3, CH2F2, C2F4, C2F6, C3F6, C3F8, C4F8, C4F10, NF3 and SF6. The method for decomposing thus removing perfluoro compounds in waste gas comprises the process of passing waste gas containing perfluoro compounds through the aluminum oxide catalyst at a temperature of 400 to 800 deg.C under the existence of steam, wherein the steam contains the perfluoro compounds in such a way that a mole ratio of steam/perfluoro compounds is in the range of 1 to 100, and where oxygen along with the steam is added to the catalyst in the concentration range of 0 to 50%.
Abstract translation: 目的：提供一种用于通过分解由半导体制造工业产生的全球变暖气体的全氟化合物来除去全氟化合物的氧化铝催化剂，并且提供了使用该催化剂除去废气中的全氟化合物的方法。 构成：用于分解废气中的全氟化合物的氧化铝催化剂的特征在于，将磷成分负载在氧化铝的表面上，使得铝（Al）/磷（P）的摩尔比为10〜 100，其中所述氧化铝选自γ氧化铝（γ-Al 2 O 3），三氢氧化铝，勃姆石和假勃姆石，其中所述磷成分为磷酸氢二铵（（NH 3）2 HPO 4），二氢磷酸铵（NH 3 H 2 PO 4）或磷酸（H 3 PO 4 ），其中全氟化合物是一种或多种选自CF 4，CHF 3，CH 2 F 2，C 2 F 4，C 2 F 6，C 3 F 6，C 3 F 8，C 4 F 8，C 4 F 10，NF 3和SF 6的化合物。 用于分解废弃气体中的全氟化合物的方法包括在蒸汽存在下在400-800℃的温度下将含有全氟化合物的废气通过氧化铝催化剂的方法，其中蒸汽含有全氟化合物 蒸汽/全氟化合物的摩尔比在1〜100的范围内，并且在0〜50％的浓度范围内向催化剂中加入氧气和蒸汽。
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公开(公告)号：KR100130153B1
公开(公告)日：1998-04-08
申请号：KR1019940030720
申请日：1994-11-22
Applicant: 한국화학연구원
IPC: B01J37/02
Abstract: The first step of the impregnation is to saturate in the matrix, the precursor solution in which activated material, the precursor is melted. For this method, spray, vaporization dry, initial wetting, absorption , or the like are considered based on the contacting method of the precursor solution and matrix. The next step of the catalyst production after impregnation is the drying step to eliminate the catalyst remaining in the pore of the matrix. The drying employing the microwave can be conducted in a short time since the catalyst is evaporated at a fast speed by the direct heating from the microwave and by the indirect heating of the matrix and the catalyst.
Abstract translation: 浸渍的第一步是在基质中饱和，其中活化的材料，前体被熔化的前体溶液。 对于该方法，基于前体溶液和基质的接触方法考虑喷雾，汽化干燥，初始润湿，吸收等。 浸渍后催化剂生产的下一步是消除残留在基体孔中的催化剂的干燥步骤。 使用微波的干燥可以在短时间内进行，因为通过从微波的直接加热以及基质和催化剂的间接加热，催化剂以快速的速度蒸发。
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公开(公告)号：KR1019940009589B1
公开(公告)日：1994-10-15
申请号：KR1019910002860
申请日：1991-02-22
Applicant: 한국화학연구원
IPC: C07C255/51
Abstract: The method manufactures the isophthalonitrile from reacting isophthalic acid and ammonia. The manufacturing method comprises: A) synthesizing meta-cyanobenzoic acid from a isophthalic acid of 150-500μ powder and ammonia at 350-450 deg.C; B) converting to isophthalonitrile by a catalyst of active alumina or silica in reactor of a fluidized bed type at 350-450 deg.C.
Abstract translation: 该方法由间苯二甲酸和氨反应生产间苯二甲腈。 制备方法包括：A）在350-450℃下从间苯二甲酸150-500μ的粉末和氨合成间 - 氰基苯甲酸; B）在350-450℃的流化床类型的反应器中通过活性氧化铝或二氧化硅的催化剂转化为间苯二腈。
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Patent Agency Ranking
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公开(公告)号：KR101397555B1
公开(公告)日：2014-05-20
申请号：KR1020120080615
申请日：2012-07-24
Applicant: 한국화학연구원
Abstract: 본 발명은 생물반응기에서 얻어진 암모늄락테이트를 C
4 알콜과 반응시켜 부틸락테이트를 만들고, 이를 정제하여 고순도의 부틸락테이트를 얻은 후, 가수분해하여 젖산을 제조하며, 중량평균분자량이 900 - 3000 사이인 소중합체(oligomer)를 얻은 다음, 이를 200℃ 이상의 온도에서 해중합/고리화 반응시켜 최종 생성물인 락타이드를 제조하는 방법에 관한 것으로, 발효조의 pH 조절을 위해 사용된 암모니아를 후공정에서 99% 이상 회수해 발효조로 순환 사용하므로 종래 기술에서 문제가 되고 있는 금속염 폐기물 배출되지 않아 친환경적이고, 발효조의 pH 조절에 사용되는 암모니아 염기를 재사용함으로써 부원료비를 줄일 수 있고, 일반적인 증류장치를 통해 정제가 용이한 부틸락테이트를 가수분해하여 젖산을 얻으므로 적은 에너지 및 비용으로도 암모늄락테이트로부터 젖산을 정제할 수 있고, 발효조에서부터 락타이드 정제단계까지 일괄공정이 가능하며, 부틸락테이트 제조 및 가수분해 공정 등 단위공정의 수율이 크기 때문에 공정 전체적으로 경제성이 우수할 뿐만 아니라, 고순도, 고수율의 락타이드를 제조할 수 있는 효과가 있다.-
公开(公告)号：KR1020140014504A
公开(公告)日：2014-02-06
申请号：KR1020120080615
申请日：2012-07-24
Applicant: 한국화학연구원
Abstract: The present invention relates to a method for producing lactide by forming butyl lactate through a reaction of ammonium lactate obtained in a bio-reactor with C_4 alcohol, followed by purification to obtain high-purity butyl lactate, hydrolysis to obtain oligomer having a weight average molecular weight of 900-3000, and de-polymerization/cyclization at a temperature of 200°C or higher to obtain the final product. According to the present invention, 99% or more of ammonia, which has been used for the adjustment of pH in a fermenting bath, is collected and then circulatively used in the fermenting bath, so that waste metal salts, which were problematic in the prior art, are not discharged, thereby being environmentally friendly. Further, an ammonia base used for adjustment of pH in the fermenting bath is again used, thereby reducing the costs of sub-materials. Further, butyl lactate, which is easily purified through a general distilling apparatus, is hydrolyzed to obtain lactic acid, so that the lactic acid can be purified from the ammonium lactate at low energy and low costs. Further, a step in the fermenting bath to a lactide purification step can be conducted in a batch process. Further, the yields of unit processes, including the butyl lactate preparation process and the hydrolysis process, are high, so that the entire processes are economically feasible, and high-purity and high-yield lactide can be prepared. [Reference numerals] (AA) Ammonia; (BB) Hydrocarbon; (CC) Fermenting bath; (DD) Filtration; (EE) Evaporation; (FF) Preparation of butyl lactate; (GG) Alcohol; (HH) 15-20% of ammonium lactate; (II) Water; (JJ) Butanol; (KK) Distillation and purification of butyl lactate; (LL) Hydrolysis; (MM) Oligomerization; (NN) De-polymerization/cyclization; (OO) Distillation and purification of lactide; (PP) High-purity lactide
Abstract translation: 本发明涉及通过在生物反应器中得到的乳酸铵与C 4醇的反应形成丁酸乳酸来制备丙交酯的方法，然后纯化得到高纯度乳酸丁酯，水解得到重均分子量的低聚物 重量为900-3000，在200℃或更高的温度下进行脱聚/环化，得到最终产物。 根据本发明，在发酵浴中收集用于调节发酵浴中的99％以上的氨，然后在发酵浴中循环使用，使得在先前存在问题的废金属盐 艺术，不排放，从而环保。 此外，再次使用用于调节发酵浴中的pH的氨碱，从而降低副材料的成本。 此外，通过一般的蒸馏装置容易地纯化的乳酸丁酯被水解以获得乳酸，使得乳酸可以以低能量和低成本从乳酸铵中纯化。 此外，发酵浴中的丙交酯纯化步骤的步骤可以分批进行。 此外，包括乳酸丁酯制备方法和水解方法在内的单元方法的收率高，使得整个方法在经济上是可行的，并且可以制备高纯度和高收率的丙交酯。 （附图标记）（AA）氨; （BB）烃; （CC）发酵浴; （DD）过滤; （EE）蒸发; （FF）乳酸丁酯的制备; （GG）酒精; （HH）15-20％乳酸铵; （二）水; （JJ）丁醇 （KK）蒸馏和纯化乳酸丁酯; （LL）水解; （MM）低聚; （NN）脱聚合/环化; （OO）丙交酯的蒸馏和纯化; （PP）高纯丙交酯
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公开(公告)号：KR1020120009879A
公开(公告)日：2012-02-02
申请号：KR1020100070878
申请日：2010-07-22
Applicant: 한국화학연구원
IPC: C12P7/56 , C12P17/06 , C08G63/78 , C07D319/12
CPC classification number: C12P7/56 , B01J21/063 , B01J23/14 , C07D319/12 , C08G63/08 , C08G63/78 , C12P17/06
Abstract: PURPOSE: A method for preparing lactide and polylactide from lactic acid fermentation is provided to ensure high yield and optical purity without by-product. CONSTITUTION: A method for preparing lactide comprises: a step of performing thermal decomposition of lactic acid fermentation liquid under the presence of trialkyl phosphate organic solvent extracting agent; a step of performing esterification of the lactic acid/inorganic solvent extracting agent or lactic acid with C1-C4 low alcohol under the presence of an acid catalyst; and a step of performing ester exchange of the alkyl lactate under the presence of titanium catalysts.
Abstract translation: 目的：提供从乳酸发酵制备丙交酯和聚丙交酯的方法，以确保没有副产物的高产率和光学纯度。 构成：制备丙交酯的方法包括：在三烷基磷酸酯有机溶剂萃取剂的存在下进行乳酸发酵液的热分解的步骤; 在酸催化剂存在下，用C1-C4低级醇进行乳酸/无机溶剂萃取剂或乳酸酯化的工序; 以及在钛催化剂存在下进行乳酸烷基酯的酯交换的步骤。
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公开(公告)号：KR100948498B1
公开(公告)日：2010-03-23
申请号：KR1020080033098
申请日：2008-04-10
Applicant: 한국화학연구원
IPC: C07C59/125 , C07C51/23
Abstract: 본원 발명은 하기 화학식 (I) 로 표시되는 신규 화합물, 메틸 2-t-부톡시에톡시-아세테이트 (MTBEA) 또는 에틸 2-t-부톡시에톡시-아세테이트 (ETBEA) 및 이의 제조 방법에 관한 것이다:
(I)
[식 중, R' 은 메틸 또는 에틸기임].
상기 화학식 (I) 로 표시되는 화합물은 반도체 또는 LCD 의 제조에 있어서, 웨이퍼 표면의 포토레지스트 막을 박리하기 위한 박리제, 잉크, 페인트 등에 사용되는 용제, 암모니아, 아민 등과 같은 화합물과 반응하여 아미드 화합물을 생성할 수 있는 중간체 등으로 사용될 수 있다.
알킬 2-t-부톡시에톡시-아세테이트 (알킬은 메틸 또는 에틸기임), 박리제, 파라-디옥사논
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