Abstract:
본 발명은 페놀함유 폐수처리제에 관한 것으로서, 더욱 상세하게는 페놀의 분해반응에서 강력한 활성을 나타내는 철(iron) 등의 금속을 무기담체 또는 고분자담체에 담지시켜 폐수중에 함유된 페놀 및 페놀유도체를 효과적으로 처리할 수 있는 폐수처리제에 관한 것이다.
Abstract:
The second class aliphatic alcohol was manufactured selectively from n-paraffin by the liquid phase oxidation method with using air as oxidation gas in the presence of boric acid catalyst and phosphor-containing subcatalyst. Thus, n-paraffin(C 10-13, MW 160) 300g, 98% HBO2 -containing dehydrated boric acid 15g, and triphenylphosphine 1.6g as subcatalyst were reacted in cylindrical batch reactor at 170 deg.C for 1.5hrs with pouring air as 3.7L/min and hydrolyzed with hot water to give second class aliphatic alcohol.
Abstract:
The present invention relates to a preparation method for dimethyl carbonate, which directly uses, without passing through any separation process, a mixture gas of carbon dioxide (CO) and hydrogen (H_2) obtained by a reforming reaction of carbon dioxide (CO_2) and methane (CH_4), both of which are greenhouse gases, for synthesizing methanol; produces dimethyl carbonate with an excess amount of carbon monoxide that is stoichiometrically used for the methanol synthesis during the methanol synthesis process; and separates the remaining carbon monoxide from such juncture so as to provide as a starting material for other applications. [Reference numerals] (AA) Process of supplying carbon dioxide and methane; (BB) Reforming reaction process; (CC) Generating carbon monoxide (CO); (DD) Generating hydrogen (Hz); (EE) Supplying oxygen; (FF) Methanol synthesis process; (GG) Generating an excess amount of carbon monoxide; (HH) Process of separating the carbon monoxide (recovery); (II) Generating dimethyl carbonate (DMC)
Abstract:
본 발명은 스티렌모노머 회수장치 및 회수방법에 대한 것으로, 더욱 상세하게는 트윈스크루 사출형 열분해 반응기를 이용하여 폐 폴리스티렌의 이송을 효율적으로 제어하여 반응잔사의 생성을 최소화하고, 잔사물을 연속적으로 배출하여 장시간의 운전에서 발생할 수 있는 스티렌모노머의 수율감소를 최소화할 수 있는 스티렌모노머 회수장치 및 회수방법에 대한 것이다. 본 발명의 스티렌모노머 회수장치는 열분해 반응기를 이용한 스티렌모노머 회수장치에 있어서, 폐 폴리스티렌을 공급받아 용융 및 열분해 반응이 일어하는 열분해 반응기와, 상기 열분해 반응기에서 반응결과 생성된 증기를 수집하는 증기집합조와, 상기 증기집합조에 포집된 증기를 액화시켜 오일로 변환하는 열교환기와, 상기 열교환기에서 액화된 오일을 저장하는 오일저장조와, 상기 열분해 반응기의 일단에 마련되어 열분해 반응결과 생성된 잔사를 연속적으로 배출시키는 잔사배출부를 포함한다. 본 발명의 스티렌모노머 회수장치는 반응결과 발생한 잔사를 연속적으로 배출하여 장시간 운전에도 스티렌모노머의 수율이 저하되지 않고 트윈스크루 사출형 열분해 반응기를 이용함에 따라 스티렌모노머의 수율을 극대화 할 수 있는 효과가 있다. 스티렌모노머, 열분해 반응기, 트윈스크루, 사출형 열분해 반응기
Abstract:
An epoxy adhesive using a fatty acid ester solvent is provided to prevent emission of volatile organic compounds causing environmental pollution, and to obtain an adhesive for a flooring material having excellent biodegradability. An adhesive composition for a flooring material comprises an epoxy resin and is obtained by using a fatty acid ester compound as a solvent. An adhesive composition for the adhesion of a flooring material comprises: 4-36 parts by weight of an epoxy resin, 5-35 parts by weight of a tackifier; 5-70 parts by weight of a filler, 1-20 parts by weight of a fatty acid ester solvent; and 0.001-2 parts by weight of a dispersant.
Abstract:
PURPOSE: A method for recovering a styrene monomer form the waste polystyrene is provided, to improve the reaction velocity and to suppress the side reaction generating ethyl benzene, α-methyl styrene, benzene and toluene, thereby improving the production yield of a styrene monomer. CONSTITUTION: The method comprises the step of pyrolyzing the waste polystyrene in the presence of a catalyst at a temperature of 200-600 deg.C for 1-2 hours, wherein the catalyst is a dual-supported catalyst of a metal oxide and a basic oxide supported in a carrier (alumina or silica). Preferably the metal oxide is selected from the group consisting of iron oxide, copper oxide, manganese oxide and chromium oxide; and the basic oxide is barium oxide, calcium oxide and potassium oxide.
Abstract:
PURPOSE: Provided is a method for producing synthetic gas from waste food which can economically performed in a shorten period of process time at a lower consumption of energy and can readily treat waste food to produce synthetic gases at a high energy efficiency. CONSTITUTION: The method comprises (i) separation step for separating solid ingredients from waste water by pyrolysis of waste food with a catalyst in a low temperature reactor under a controlled temperature and vapor pressure, (ii) extraction step for extracting oil from the waste water by a catalytic decomposition reaction with a catalyst circulated through a vaporizer, and (iii) production step for producing synthetic gases by gasification of the solid carbon including oil and solids produced in the extraction step(ii) in a gas reactor. The pyrolysis of waste food with a catalyst is performed at a temperature of 100 to 300 deg.C and a vapor pressure of 1 to 25 atm for 1 to 3 hours. The extraction step is performed by drying the product of the pyrolysis at 105 deg.C for 5 hours to produce solid material and extracting filtrate with dichloromethane. The gas production step is performed at 300 to 1200 deg.C.
Abstract:
본 발명은 폐놀함유 폐수처리제에 관한 것으로서, 더욱 상세하게는 페놀의 분해 반응에서 강력한 활성을 나타내는 철(iron)등의 금속을 무기담체 또는 고분담체에 담지시켜 폐수중에 함유된 페놀 및 페놀유도체를 효과적으로 처리할 수 있는 폐수처리제에 관한 것이다.
Abstract:
PURPOSE: A catalyst for epoxidation of dicyclopentadiene dimer and a manufacturing method thereof are provided to be able to show a high selectivity to dicyclopentadien dimer with a large molecular size and a high conversion ratio, and to be able to obtain a dicyclopentadiene dimer epoxy compound with a high yield. CONSTITUTION: A catalyst for epoxidation of dicyclopentadiene dimer has a structure in which metals in a zeolite molecular sieve of macro pores more than 7 angstrom are substituted with titanium. The catalyst is a heterogeneous catalyst used in a process of manufacturing dicyclopentadiene dimer epoxy compound by epoxidation of dicyclopentadiene dimer. A manufacturing method of the catalyst comprises the following steps: a step of processing a zeolite molecular sieve of macro pores more than 7 angstrom with acid; and a step of substituting aluminum of the acid-treated zeolite molecular sieve with titanium by stirring the acid-treated zeolite molecular sieve with titanium precursor.