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公开(公告)号：KR100475512B1
公开(公告)日：2005-03-10
申请号：KR1020020034595
申请日：2002-06-20
Applicant: 한국화학연구원 , (주)유니온카본 , 코리아에프티 주식회사
IPC: C01B31/08
Abstract: 본 발명은 리그노셀룰로오즈계 성형활성탄 제조방법에 관한 것으로서, 기존 제조공정보다 단순한 공정으로 고밀도, 고성능 성형활성탄을 제조하는데 목적이 있다.
이를 위하여, 공정의 단순화 및 설비의 간소화를 도모할 수 있고, 특히 활성탄의 기계적 강도 및 흡착능을 향상시킬 수 있으며, 에너지절약 및 환경오염감소에 적극적으로 대처할 수 있도록 한 혼합, 열경화, 분쇄, 성형조제첨가, 응집 공정을 일괄적으로 수행할 수 있는 고전단력믹서를 포함하는 리그노셀룰로오즈계 성형활성탄 제조방법을 제공한다.-
公开(公告)号：KR100441407B1
公开(公告)日：2004-07-23
申请号：KR1020020013210
申请日：2002-03-12
Applicant: 한국화학연구원
IPC: C08F6/16
Abstract: PURPOSE: Provided is a method for producing a globular powder of polymethylmethacrylate with high efficiency and high productivity, in which crystal is formed in solution by simple production equipment and process without polymerization additives such as emulsifier and dispersant. CONSTITUTION: The method comprises the steps of (i) stirring a mass polymethylmethacrylate resin at temperature of its boiling point or 20deg.C lower than the boiling point, in phase-separation solvent, so as to form transparent homogeneous solution; (ii) cooling the heated homogeneous solution to 0-30 deg.C in a rate of 0.001-200 deg.C/min., to perform a phase-separation of solvent and polymethylmethacrylate, thereby forming a nucleus of polymer crystal, and adjusting a growth velocity of the formed nucleus to form an inhomogeneous solution(from which polymethylmethacrylate is removed as a separate globular particle); and (iii) dissolving, washing and removing only the phase-separation solvent by using washing solvent, and isolating and filtrating the phase-separated polymethylmethacrylate, so as to globular polymethylmethacrylate powder having uniform size distribution.
Abstract translation: 目的：提供一种高效且高生产率的聚甲基丙烯酸甲酯球状粉末的制造方法，其中通过简单的生产设备和工艺在没有聚合添加剂如乳化剂和分散剂的情况下在溶液中形成结晶。 构成：该方法包括以下步骤：（i）在相分离溶剂中，在沸点或低于沸点20℃的温度下搅拌聚甲基丙烯酸甲酯树脂，以形成透明均匀溶液; （ii）以0.001〜200℃/ min的速度将加热后的均匀溶液冷却至0〜30℃，进行溶剂与聚甲基丙烯酸甲酯的相分离，形成聚合物晶体的核， 形成的核的生长速度以形成不均匀的溶液（聚甲基丙烯酸甲酯作为单独的球形颗粒从中移除）; （iii）通过使用洗涤溶剂仅溶解，洗涤和除去相分离溶剂，并分离和过滤相分离的聚甲基丙烯酸甲酯，从而得到具有均匀尺寸分布的球状聚甲基丙烯酸甲酯粉末。
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公开(公告)号：KR100434941B1
公开(公告)日：2004-06-10
申请号：KR1020010024502
申请日：2001-05-07
Applicant: 한국화학연구원
Abstract: PURPOSE: A polytetrafluoroethylene water-dispersive substance and its preparation method are provided, which has a high concentration of 60-70% and a nano-size of 100-200 nm. CONSTITUTION: The method comprises the steps of emulsion polymerizing gaseous polytetrafluoroethylene monomer in the presence of purified water, a fluorine-based surfactant, an emulsion stabilizer and an initiator; mixing the obtained one with a mixture of a nonionic surfactant and an anionic surfactant by stirring at the same temperature with the emulsion polymerization; stopping the stirring and concentrating the mixture; separating polytetrafluoroethylene water-dispersive substance from the upper mixture layer of the purified water and the emulsion stabilizer; and drying the polytetrafluoroethylene water-dispersive substance.
Abstract translation: 目的：提供一种聚四氟乙烯水分散物质及其制备方法，其具有60-70％的高浓度和100-200纳米的纳米尺寸。 构成：该方法包括在净化水，氟基表面活性剂，乳液稳定剂和引发剂的存在下乳液聚合气态聚四氟乙烯单体的步骤; 通过在与乳液聚合相同的温度下搅拌将所得产物与非离子表面活性剂和阴离子表面活性剂的混合物混合; 停止搅拌并浓缩混合物; 从纯化水的上层混合物层和乳化稳定剂中分离出聚四氟乙烯水分散物质; 并干燥聚四氟乙烯水分散物质。
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公开(公告)号：KR1020040026871A
公开(公告)日：2004-04-01
申请号：KR1020020058493
申请日：2002-09-26
IPC: C12N11/00
CPC classification number: C12N11/00
Abstract: PURPOSE: Organic and inorganic hybrid media for microorganism immobilization and a producing method thereof are provided to simply and cheaply produce the organic and inorganic hybrid media by deleting foaming and calcination processes, and significantly increase the adsorption of media. CONSTITUTION: Organic and inorganic hybrid media for microorganism immobilization comprise 30 to 80 wt.% of inorganic adsorption materials having an average diameter of 1 to 10 micrometers such as silica gel powder, A type zeolite powder, amorphous alumina powder and coal or coconut based powdery active carbon; 20 to 70 wt.% of thermoplastic resin having a melting point of 200 deg. C such as polyethylene wax powder; 1 to 10 wt.% of caking agent such as sodium bentonite; and 1 to 20 wt.% of water-soluble carbonate such alkali metal and alkali earth metal. A method for producing the organic and inorganic hybrid media for microorganism immobilization comprises the steps of: mixing inorganic adsorption materials, thermoplastic resin, caking agent and water-soluble carbonate with water and pressure-shaping the mixture to form a first cylindrical, spherical or tube type product; mixing the first product with thermoplastic resin powder to form a second product; drying the second product at 100 to 150 deg. C for 5 to 10 hours and at 150 to 200 deg. C for 1 to 7 hours; and cooling the product, dipping it in water of 60 to 100 deg. C for 1 to 10 hours, and washing and drying it at 100 to 120 deg. C for 5 to 20 hours.
Abstract translation: 目的：提供用于微生物固定的有机和无机杂交介质及其制备方法，通过缺少发泡和煅烧过程简单且便宜地生产有机和无机杂化介质，并显着增加介质的吸附。 构成：用于微生物固定化的有机和无机杂化介质包含平均直径为1至10微米的无机吸附材料的30至80重量％，例如硅胶粉末，A型沸石粉末，无定形氧化铝粉末和煤或椰子粉末 活性炭; 20〜70重量％的熔点为200度的热塑性树脂。 C如聚乙烯蜡粉; 1〜10重量％的结块剂如钠膨润土; 和1〜20重量％的水溶性碳酸盐如碱金属和碱土金属。 制备用于微生物固定的有机和无机杂化介质的方法包括以下步骤：将无机吸附材料，热塑性树脂，结块剂和水溶性碳酸盐与水混合并将混合物加压成型以形成第一圆柱形，球形或管 型产品; 将第一产品与热塑性树脂粉末混合以形成第二产品; 在100至150度干燥第二产品。 5至10小时和150至200度。 C 1〜7小时; 并冷却产品，将其浸入60至100度的水中。 C进行1〜10小时，并在100〜120℃下洗涤干燥。 C 5〜20小时。
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公开(公告)号：KR1020030075072A
公开(公告)日：2003-09-22
申请号：KR1020020014175
申请日：2002-03-15
Applicant: 한국화학연구원
IPC: C08F2/28
Abstract: PURPOSE: Provided is a method for producing spherical polyethylene powder which excludes the need for production of a polymerization catalyst, and simplifies the processing steps to save the costs and to improve the productivity. CONSTITUTION: The method for producing spherical polyethylene powder comprises the steps of: (a) dissolving a polyethylene into a good solvent to form a transparent and homogeneous solution; (b) heating a non-solvent which cannot dissolve polyethylene in a separate container at a temperature higher than the melting temperature of polyethylene; (c) mixing the homogeneous solution of the step (a) with the heated non-solvent of the step (b); (d) cooling the mixture to a temperature lower than the crystallization temperature of polyethylene to form an emulsion; and (e) separating and filtering the emulsion, removing the remaining good solvent and non-solvent with a washing solvent and then drying. The apparatus for producing spherical polyethylene powder comprises the means(1) for dissolving the polyethylene into the good solvent; a means(2) for heating the non-solvent; an agitated crystallizing device(3) for mixing the good solvent with the non-solvent; a filter(4) for recovering spherical polyethylene particles; and a separator(5) for recycling the remaining polyethylene.
Abstract translation: 目的：提供一种不需要生产聚合催化剂的球形聚乙烯粉末的制造方法，并且简化了节省成本并提高生产率的加工步骤。 构成：球形聚乙烯粉末的制造方法包括以下步骤：（a）将聚乙烯溶解在良溶剂中以形成透明且均匀的溶液; （b）在高于聚乙烯的熔融温度的温度下加热不溶于聚乙烯的非溶剂; （c）将步骤（a）的均匀溶液与步骤（b）的加热非溶剂混合; （d）将混合物冷却到低于聚乙烯的结晶温度的温度以形成乳液; 和（e）分离和过滤乳液，用洗涤溶剂除去剩余的良溶剂和非溶剂，然后干燥。 用于制备球形聚乙烯粉末的装置包括用于将聚乙烯溶解到良溶剂中的装置（1） 用于加热非溶剂的装置（2）; 用于将良溶剂与非溶剂混合的搅拌结晶装置（3）; 用于回收球形聚乙烯颗粒的过滤器（4） 和用于再循环剩余聚乙烯的分离器（5）。
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Patent Agency Ranking
公开(公告)号：KR1020030073576A
公开(公告)日：2003-09-19
申请号：KR1020020013210
申请日：2002-03-12
Applicant: 한국화학연구원
IPC: C08F6/16
CPC classification number: C08F120/14 , C08F2/02 , C08J3/12
Abstract: PURPOSE: Provided is a method for producing a globular powder of polymethylmethacrylate with high efficiency and high productivity, in which crystal is formed in solution by simple production equipment and process without polymerization additives such as emulsifier and dispersant. CONSTITUTION: The method comprises the steps of (i) stirring a mass polymethylmethacrylate resin at temperature of its boiling point or 20deg.C lower than the boiling point, in phase-separation solvent, so as to form transparent homogeneous solution; (ii) cooling the heated homogeneous solution to 0-30 deg.C in a rate of 0.001-200 deg.C/min., to perform a phase-separation of solvent and polymethylmethacrylate, thereby forming a nucleus of polymer crystal, and adjusting a growth velocity of the formed nucleus to form an inhomogeneous solution(from which polymethylmethacrylate is removed as a separate globular particle); and (iii) dissolving, washing and removing only the phase-separation solvent by using washing solvent, and isolating and filtrating the phase-separated polymethylmethacrylate, so as to globular polymethylmethacrylate powder having uniform size distribution.
Abstract translation: 目的：提供一种以高效率，高生产率生产聚甲基丙烯酸甲酯的球状粉末的方法，其中通过简单的生产设备和不含聚合添加剂如乳化剂和分散剂的方法在溶液中形成晶体。 方案：该方法包括以下步骤：（i）在相分离溶剂中，在沸点或低于沸点的温度下搅拌聚甲基丙烯酸甲酯树脂，形成透明的均匀溶液; （ii）将加热的均匀溶液以0.001-200℃/分钟的速率冷却至0-30℃，进行溶剂和聚甲基丙烯酸甲酯的相分离，从而形成聚合物晶体的核，并调节 所形成的核的生长速度形成不均匀的溶液（聚甲基丙烯酸甲酯作为单独的球状颗粒除去）; 和（iii）通过使用洗涤溶剂仅溶解，洗涤和除去相分离溶剂，并分离并过滤相分离的聚甲基丙烯酸甲酯，从而具有均匀尺寸分布的球形聚甲基丙烯酸甲酯粉末。
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公开(公告)号：KR1020030000069A
公开(公告)日：2003-01-06
申请号：KR1020010035694
申请日：2001-06-22
Applicant: 에스케이 인천정유 주식회사 , 한국화학연구원
IPC: B01J29/068 , B01J37/08 , B01J37/02
CPC classification number: B01J37/0009 , B01J29/068 , B01J37/08
Abstract: PURPOSE: A preparation method of dearomatization catalysts for diesel oil is provided, which can keep high dearomatization activity by using platinum, palladium or their mixtures, mesoporous molecular sieve, pseudo-boehmite and acid solutions. The catalyst also enhances yield of liquid hydrocarbon by inhibiting cracking reaction by using mesoporous molecular sieve, enhances activity by well distributing activating component by utilizing merits of large pore size and pore volume of specific surface of mesoporous molecule sieve, and can prevent inactivation caused by coke deposition. CONSTITUTION: The preparation method of dearomatization catalysts for diesel oil comprises the steps of supporting 100 parts by weight of mesoporous molecular sieve with a SiO2/Al2O3 molecular ratio of 30 to 300 and a pore size of 20 to 50 Å with 0.1 to 2.0 parts by weight of platinum, palladium or their mixtures; adding 5 to 50 parts by weight of pseudo boehmite and 0.2 to 3.0 parts by weight of acid solutions, followed by molding; and calcining the molded matter at 300 to 600 deg.C for 4 to 6 hours.
Abstract translation: 目的：提供柴油脱芳构化催化剂的制备方法，通过使用铂，钯或其混合物，介孔分子筛，假勃姆石和酸溶液，可以保持高脱醛活性。 催化剂还通过使用介孔分子筛抑制裂化反应，提高液态烃的产率，通过利用孔隙分子筛比表面积孔径大孔孔体积优良的活性成分，提高活性，可以防止焦炭引起的失活 沉积。 构成：用于柴油的脱芳构化催化剂的制备方法包括以下步骤：将100重量份SiO 2 / Al 2 O 3分子比为30〜300，孔径为20〜50的中孔分子筛与0.1〜2.0份 铂，钯或其混合物的重量; 加入5〜50重量份的假勃姆石和0.2〜3.0重量份的酸溶液，然后成型; 并在300〜600℃下烧成4〜6小时。
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公开(公告)号：KR1020020094745A
公开(公告)日：2002-12-18
申请号：KR1020010033161
申请日：2001-06-13
Applicant: 에스케이 인천정유 주식회사 , 한국화학연구원
IPC: C01B39/02
CPC classification number: C01B39/46
Abstract: PURPOSE: An improved method for preparing mesoporous crystalline molecular sieve having large pore size and superior hydrothermal stability is provided. CONSTITUTION: The method for preparing mesoporous crystalline molecular sieve comprises the steps of a) preparing a first solution by dissolving 2 to 20 weight parts of silica alone or a mixture of silica and a metal salt or metal alkoxide into 100 weight parts of a hydrogen fluoride solution having concentration of 5 to 50%, wherein a mole ratio of Si/metal is 10 or more; b) preparing a second solution by dissolving 2 to 12 weight parts of cationic surfactant into 100 weight parts of distilled water; c) uniformly mixing the solutions by adding the first solution to the second solution in a weight ratio of 1 to 2:1 (second solution/first solution), and preparing powder by filtering and drying the aged solution after aging the resulting solution at a temperature of 25 to 80 deg.C for 10 to 18 hours by adding 20 to 30 weight parts of concentrated aqueous ammonia (based on 100 weight parts of the hydrogen fluoride solution) to the mixed solution; and d) adding the powder to 200 to 300 weight parts (based on 100 weight parts of the hydrogen fluoride solution) of an ethanol acidic solution, and calcining the resulting material at a temperature of 300 to 600 deg.C for 2 to 4 hours.
Abstract translation: 目的：提供一种制备孔径大，水热稳定性好的介孔结晶分子筛的改进方法。 构成：制备介孔结晶分子筛的方法包括以下步骤：a）通过将2至20重量份的二氧化硅单独或二氧化硅和金属盐或金属醇盐的混合物溶解在100重量份的氟化氢中来制备第一溶液 浓度为5〜50％的溶液，其中Si /金属的摩尔比为10以上; b）通过将2至12重量份的阳离子表面活性剂溶解在100重量份的蒸馏水中来制备第二溶液; c）通过以1:2:1的重量比（第二溶液/第一溶液）将第一溶液加入到第二溶液中，并将所得溶液老化后过滤和干燥老化溶液来制备粉末，从而均匀混合溶液 通过向混合溶液中加入20-30重量份浓氨水（基于100重量份氟化氢溶液），温度为25〜80℃10〜18小时; 和d）将该粉末加入到200至300重量份（基于100重量份氟化氢溶液）的乙醇酸性溶液中，并将所得材料在300至600℃的温度下煅烧2至4小时 。
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公开(公告)号：KR1020020090690A
公开(公告)日：2002-12-05
申请号：KR1020010029667
申请日：2001-05-29
Applicant: 한국화학연구원
IPC: C08F259/06
CPC classification number: C08F259/06 , C08F2/01 , C08F220/06
Abstract: PURPOSE: A method for preparing the graft polymer of a polyvinylidene fluoride resin and an acryl derivative and its polymerization apparatus are provided to use little solvent, to reduce the reaction time, to improve the graft rate and to modify the surface of the polymer. CONSTITUTION: The method comprises the steps of putting a solid polyvinylidene fluoride resin supplying the main chain of a linear polymer into a solid state polymerization reactor; purging nitrogen gas to remove the oxygen present in the reactor; heating the temperature to 90-120 deg.C; injecting a solid state initiator to generate radicals at the polymerization reaction temperature; spraying a liquid acryl derivative in the state of aerosol; and reacting it at the polymerization reaction temperature for 10-50 min after the injection of an initiator. Preferably the initiator is benzoyl peroxide, and the acryl derivative is selected from the group consisting of acrylic acid, methacrylic acid and glycidyl methacrylate.
Abstract translation: 目的：制备聚偏二氟乙烯树脂和丙烯酰基衍生物的接枝聚合物及其聚合装置的方法是使用少量溶剂，减少反应时间，提高接枝率和改性聚合物的表面。 构成：该方法包括将固态聚偏二氟乙烯树脂供给到固态聚合反应器中的线性聚合物主链的步骤; 吹扫氮气以除去反应器中存在的氧气; 将温度加热至90-120℃; 在聚合反应温度下注入固态引发剂以产生自由基; 喷雾气溶胶状液体丙烯酸衍生物; 并在注射引发剂后在聚合反应温度下反应10-50分钟。 优选引发剂是过氧化苯甲酰，丙烯酸衍生物选自丙烯酸，甲基丙烯酸和甲基丙烯酸缩水甘油酯。
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公开(公告)号：KR100316555B1
公开(公告)日：2002-11-22
申请号：KR1019980027206
申请日：1998-07-07
Applicant: 한국화학연구원
IPC: C07C7/14
Abstract: 티오우레아의 부가를 반복부가하지 않으면서 납사분해잔사유로부터 다이메틸에틸벤젠을 고순도, 고수율로 연속 분리하는 방법과 그 분리장치를 제공함을 제1의 목적으로 하고, 용매와 티오우레아를 회수하여 재사용함을 제2의 목적으로 한다.
납사분해중유를 비점차를 이용하는 저비점탄화수소 분리기(1)와 고비점탄화수소분리기(2)를 통해 분리, 40∼90wt%로 농축된 다이메틸에틸벤젠을 결정화기(5)에 주입하고 이에 포화된 티오우레아 용액 및 용제를 넣고 이에 포접촉진제를 가하거나 가하지 않고 가온, 균일 액상으로 만든 후, 이를 냉각하여 이 포접결정체를 잔여액과 분리한 후 포접결정체를 건조후 스팀으로 용해하고 상분리하여서 된 납사분해중유로부터 다이메틸에틸벤젠을 고순도, 고수율로 연속 분리방법과 그 분리장치이다.
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