Abstract:
본 발명은 폐플라스틱 필름을 이용한 고부가가치의 왁스 제조장치에 관한 것이다. 더 상세하게는, 본 발명은 용융조(10)에 폐플라스틱 필름을 투입한 후, 250℃ 내지 300℃ 로 용융시켜 폐플라스틱에 함유된 다양한 불순물을 분리하고, 용융된 폐플라스틱용융물은 열분해 반응조(12)로 이송시켜, 350~390℃로 열분해함으로써 평균분자량이 1000~5000이고 점도(140℃)가 300~400 cP 인 고열량의 왁스를 제조하는 장치를 제공하는 것이다. 본발명에 의해, 환경오염의 주원인인 폐플라스틱 필름등에서 흙 등의 이물질 제거를 위한 수세 및 건조과정과 같은 복잡한 공정없이, 단순히 용융조에서 용융함으로써 비중이 큰 흙 등의 불순물을 비중차에 의해 하부로 분리하고, 플라스틱 용융물은 열분해 반응조(12)로 이송하여 분해시켜, 분산제, 접착제 및 첨가조제 등 다양한 분야에 사용할 수 있는 고부가가치의 왁스를 제조할 수 있으며, 폐수가 전혀 발생하지 않는 무폐수 방류시스템의 개발을 통한 2차 환경오염방지, 폐기물 처리에 의한 환경오염 방지, 매립 및 소각에 따른 비용절감 및 사회 간접수입 증대와 같은 효과를 가져올 수 있다. 폐플라스틱 필름, 열분해, 열분해 반응조, 고부가 왁스
Abstract:
PURPOSE: A novel chalcone-based derivative is provided, which has an interleukin-5 inhibiting effect and a chronic allergic inflammation curing effect and is a low molecule and a non-peptide material. CONSTITUTION: The novel chalcone-based derivative represented by the formula(1) is produced by condensing a compound represented by the formula(2) and a compound represented by the formula(3) in an alcohol solvent in the presence of a base, wherein the alcohol solvent is a C1-C5 alcohol and the base is sodium hydroxide or potassium hydroxide. In the formulas, R1 and R2 are benzyloxy, cyclohexyl methoxy, hydrogen, or hydroxy and R3 is hydroxy or -COOH.
Abstract:
PURPOSE: Isoflavonone derivative which inhibits IL-5 activity are provided. The derivative inhibits the introduction of eosinophil which is an inflammatory cell causing asthma into the airway, and improves the airway sensitivity to alleviate asthma symptom. CONSTITUTION: The isoflavonone derivatives of the formula (1) inhibiting IL-5 activity is provided, wherein R1 is benzyloxy, hydrogen or hydroxy; R2 is benzyloxy, hydrogen or hydroxy; R3 is hydroxy, -OCH2COOCH3, -OCH2COOH or compound groups of formula (2). The method for preparing the isoflavonone derivative of the formula (1) comprises the steps of: reacting a compound of the formula (3) to prepare an isoflavonone derivative of formula (1-1); reacting the compound of the formula (1-1) with benzyl triammonium chloride and glucopyranosyl bromoacetate in the presence of base to prepare a compound of the formula (1-2); reacting the compound of the formula (1-1) with epichlorohydrin in the presence of base to prepare an epoxymethyl derivative of the formula (1-4); and reacting the compound of formula (1-4) with anhydrous sodium acetate and titanium tetraisopropoxide in acetic acid to prepare a compound of the formula (1-5), deprotecting the compound of the formula (1-4) to prepare a compound of the formula (1-6), and reacting the compound of the formula (1-4) with sodium acetate and titanium tetraisopropoxide in methanol to prepare compounds of the formulas (1-7) and (1-8).
Abstract:
PURPOSE: Provided are a complex filter for a gas scrubber, which is able to simultaneously remove volatile organic compounds, ionic gas and heavy metals, and a gas scrubber, which is able to continuously regenerate the complex filter during the system operation. CONSTITUTION: The complex filter comprises a cation exchange filter part (A) adsorbing and removing cationic contaminants in gas to be treated, an anion exchange filter part (B) adsorbing and removing anionic contaminants in gas to be treated, an inorganic adsorbing part (C) filtering non-ionic contaminants including heavy metals and volatile organic components and a case(3) having at least one of the cation exchange filter part, anion exchange filter part and inorganic adsorbing part within at regular intervals. The gas scrubber where the complex filter for the gas scrubber is installed comprises a regenerating solution storing means regenerating the complex filter for the gas scrubber, a pumping means pumping the regenerating solution stored in the regenerating solution storing means to the top part of the complex filter and a regenerating solution spraying means periodically or intermittently.
Abstract:
PURPOSE: A derivatives of cyclic thio-urea and a composition containing the same are provided to prevent and relieve pigmentation of melanocytes and to treat hypepigmentation. CONSTITUTION: A derivative of cyclic thio-urea is denoted by chemical formula 1. A method for preparing the derivative comprises: a step of reacting diaminopropane(2) with ditertialybutyl dicarbonate to prepare a compound(3); a step of condensing aldehyde(4) with the compound and reducing to obtain an amine compound(5); a step of reacting the amine compound under the basic condition to obtain cyclized cyclic urea derivative(6); and a step of reacting the cyclic urea derivative with Lawesson's reagent to obtain the derivative of thio-urea derivative(1).
Abstract:
PURPOSE: A novel 1,3-dihydrobanzimidazol-2-thion derivative is provided to prevent pigmentation, attenuate the color of melanin and ensure skin whitening effect. CONSTITUTION: A 1,3-dihydrobenzimidazol-2-thion derivative is denoted by the chemical formula 1. In chemical formula 1, R1 is alkyl(C1-C5) or chloro, n is 1, 2, or 3. A method for producing 1,3-dihydrobenzimidazol-2-thion derivative comprises: a step of converting 2-nitroaniline derivative (chemical formula 2) to 1N-benzyl-2-nitroaniline derivative (chemical formula 3); a step of converting the 1N-benzyl-2-nitroaniline derivative to a 1N-benzyl-2-aminoanyline derivative (chemical formula 4); a step of converting the 1N-benzyl-2-aminoanyline derivative to 1,3-dihydrobenzimidazol-2-one derivative (chemical formula 7); and a step of converting the 1,3-dihydrobenzimidazol-2-one derivative to 1,3-dihydrobenzamidazol-2-thion derivative.
Abstract:
본 발명은 폐플라스틱 필름을 이용한 고부가가치의 왁스 제조장치에 관한 것이다. 더 상세하게는, 본 발명은 용융조(10)에 폐플라스틱 필름을 투입한 후, 250℃ 내지 300℃ 로 용융시켜 폐플라스틱에 함유된 다양한 불순물을 분리하고, 용융된 폐플라스틱용융물은 열분해 반응조(12)로 이송시켜, 350~390℃로 열분해함으로써 평균분자량이 1000~5000이고 점도(140℃)가 300~400 cP 인 고열량의 왁스를 제조하는 장치를 제공하는 것이다. 본발명에 의해, 환경오염의 주원인인 폐플라스틱 필름등에서 흙 등의 이물질 제거를 위한 수세 및 건조과정과 같은 복잡한 공정없이, 단순히 용융조에서 용융함으로써 비중이 큰 흙 등의 불순물을 비중차에 의해 하부로 분리하고, 플라스틱 용융물은 열분해 반응조(12)로 이송하여 분해시켜, 분산제, 접착제 및 첨가조제 등 다양한 분야에 사용할 수 있는 고부가가치의 왁스를 제조할 수 있으며, 폐수가 전혀 발생하지 않는 무폐수 방류시스템의 개발을 통한 2차 환경오염방지, 폐기물 처리에 의한 환경오염 방지, 매립 및 소각에 따른 비용절감 및 사회 간접수입 증대와 같은 효과를 가져올 수 있다.