Abstract:
프로판디올 제조용 촉매의 제조 방법 및 그를 이용한 프로판디올의 제조 방법이 개시된다. 프로판디올 제조용 촉매의 제조 방법은 글리세롤로부터 프로판디올을 생산하는 단일 반응 과정에 첨가되는 촉매의 제조 방법으로서, 적어도 일종의 금속 전구체 화합물을 용매에 용해시켜 금속 전구체 용액을 준비하는 단계; 상기 금속 전구체 용액의 pH를 조절하여 침전물을 형성하는 단계; 상기 침전물을 숙성시키는 단계; 상기 숙성된 침전물을 여과하고 건조하는 단계; 및 상기 건조된 침전물을 하소하는 단계를 포함한다.
Abstract:
A catalyst for manufacturing propanediol is provided to have a high yield by making proper metal have an optimum of content and to heighten a profitability, safety and effectiveness of a propanediol-manufacturing process by progressing efficiently a reaction at a condition that a pressure and a temperature relatively are low in a case of manufacturing the propanediol from hydroxyacetone using the catalyst for manufacturing propanediol. A catalyst for manufacturing propanediol is manufactured by steps of: preparing a metal precursor solution by dissolving a metal precursor in a hydrophilic solvent; preparing a metal-containing support element in which a metal is dipped by mixing and agitating a metal oxide in the metal precursor solution; evaporating a hydrophilic solvent; drying and pulverizing the metal-containing support element; and plasticizing the metal-containing support element.
Abstract:
A catalyst for manufacturing propanediol is provided to have a high yield by making proper metal have an optimum of content and to heighten a profitability, safety and effectiveness of a propanediol-manufacturing process by progressing efficiently a reaction at a condition that a pressure and a temperature relatively are low in a case of manufacturing the propanediol from hydroxyacetone using the catalyst for manufacturing propanediol. A metal precursor aqueous solution is prepared by dissolving a kind of metal precursor compound in distilled water. A catalyst for manufacturing propanediol is manufactured by steps of: forming precipitate by controlling a pH of a metal precursor aqueous solution(S12); aging the precipitate(S13); filtering and drying the matured precipitate(S14); and plasticizing the dried precipitate(S15).
Abstract:
본 발명은 글리세롤의 수소첨가분해반응을 통한 1,2-프로판디올 생산 반응용 촉매 및 이를 이용한 1,2-프로판디올의 제조방법에 관한 것으로서, 구리-크롬 촉매에 귀금속인 팔라듐을 도입하여 활성점을 증가시킴으로써 낮은 수소 분압에서도 높은 활성을 나타내면서도, 펠렛 형태로서 연속공정에 적용 가능한 촉매 및 그 제조방법에 관한 것이다.
Abstract:
PURPOSE: A copper-chrome reaction catalyst is provided to increase activation point by introducing a palladium which is a precious metal into a copper-chrome catalyst, thereby having high activity even under a low hydrogen partial pressure, thereby being applied to a continuous process as a pellet shape. CONSTITUTION: A copper-chrome reaction catalyst of 1,2-propanediol comprises a metal element, and a copper-chrome catalyst. The metal element is a co-catalyst of a copper-chrome catalyst. A manufacturing method of the 1,2-propanediol comprises a step of preparing a metal precursor solution by dissolving a metal precursor compound into a solvent; a step of forming a precipitate by controlling pH of the metal precursor solution; a step of measuring the precipitate; a step of filtering and drying the precipitate; a step of incinerating the dried precipitate; and a step of adding an organic binder into the catalyst powder, pasting, and extrusion-molding the same. [Reference numerals] (AA) Example 5; (BB) Example 4; (CC) Example 3; (DD) Example 2; (EE) Example 1; (FF) Comparative example 1
Abstract:
PURPOSE: A manufacturing method of a catalyst and a manufacturing method of propanediol using the same are provided to produce propanediol from glycerol with high yield at a low temperature and pressure condition. CONSTITUTION: A manufacturing method of a catalyst includes the following steps: preparing a metal precursor solution by dissolving a metal precursor in a solvent; preparing a support containing metals dipped in the metal oxide by agitating and mixing the metal oxide in the metal precursor solution; removing the solvent; pulverizing and drying the support containing the metal; and calcinating the support containing the metal. The manufacturing method of the catalyst further includes a step for reducing the catalyst to increase catalytic activity. The metal of the metal precursor is ruthenium, platinum, rhodium or palladium.
Abstract:
프로판디올 제조용 촉매의 제조 방법 및 그를 이용한 프로판디올의 제조 방법이 개시된다. 프로판디올 제조용 촉매의 제조 방법은 글리세롤로부터 프로판디올을 생산하는 단일 반응 과정에 첨가되는 촉매의 제조 방법으로서, 적어도 일종의 금속 전구체 화합물을 용매에 용해시켜 금속 전구체 용액을 준비하는 단계; 상기 금속 전구체 용액의 pH를 조절하여 침전물을 형성하는 단계; 상기 침전물을 숙성시키는 단계; 상기 숙성된 침전물을 여과하고 건조하는 단계; 및 상기 건조된 침전물을 하소하는 단계를 포함한다.
Abstract:
프로판디올 제조용 촉매, 그 제조 방법 및 그 촉매를 이용한 프로판디올의 제조 방법이 개시된다. 프로판디올 제조용 촉매의 제조 방법은 글리세롤로부터 프로판디올을 생산하는 단일 반응 과정에 첨가되는 촉매의 제조 방법으로서, 금속 전구체를 용매에 용해시켜 금속 전구체 용액을 준비하는 단계; 금속 산화물을 상기 금속 전구체 용액에 혼합 및 교반하여, 상기 금속 전구체의 금속이 상기 금속 산화물에 담지된 금속 함유 담지체를 준비하는 단계; 상기 용매를 제거하는 단계; 상기 금속 함유 담지체를 건조 및 분쇄하는 단계; 및 상기 금속 함유 담지체를 하소하는 단계를 포함한다.
Abstract:
PURPOSE: A manufacturing method of a catalyst for manufacturing propanediol and a manufacturing method of propanediol using the same are provided to produce propanediol from glycerol with high yield at a low temperature and pressure condition. CONSTITUTION: A manufacturing method of a catalyst for manufacturing propanediol includes the following steps: preparing a metal precursor solution by dissolving a metal precursor compound in a solvent; forming precipitate by adjusting pH of the metal precursor solution; aging the precipitate; drying the aged precipitate after filtering; and calcinating the dried precipitate. The method further includes a step for reducing the catalyst to increase activity of the catalyst. The metal precursor compound is chrome, copper, nickel, zinc and manganese.