公开(公告)号：KR1020140040539A

公开(公告)日：2014-04-03

申请号：KR1020120107376

申请日：2012-09-26

Applicant: 한국화학연구원

Inventor： 이혁희 ,  장태선 ,  김범식 ,  김성보 ,  권순일 ,  송상훈 ,  서정권 ,  최명재 ,  윤병태 ,  조득희 ,  안홍찬 ,  유영우 ,  김태순 ,  정윤호

IPC: C07C67/30 ,  C07C69/62 ,  C07C69/96 ,  B01J23/72

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 translation: 本发明涉及一种碳酸二甲酯的制备方法，其不经过任何分离工艺直接使用通过二氧化碳（CO 2）和甲烷的重整反应得到的二氧化碳（CO）和氢（H 2）的混合气体 （CH_4），两者均为温室气体，用于合成甲醇; 在甲醇合成过程中产生化学计量地用于甲醇合成的过量一氧化碳的碳酸二甲酯; 并将剩余的一氧化碳从这种接合处分离，以提供其它应用的起始材料。 （附图标记）（AA）供应二氧化碳和甲烷的方法; （BB）重整反应过程; （CC）产生一氧化碳（CO）; （DD）产生氢气（Hz）; （EE）供氧; （FF）甲醇合成方法; （GG）产生过量的一氧化碳; （HH）分离一氧化碳（回收）的过程; （二）生成碳酸二甲酯（DMC）

公开(公告)号：KR100524697B1

公开(公告)日：2005-11-01

申请号：KR1020030019276

申请日：2003-03-27

Applicant: 한국화학연구원

Inventor： 이정민 ,  서정권 ,  홍지숙 ,  정윤호

IPC: C01B39/14

Abstract: 본 발명은 3A형 제올라이트 입상 성형체와 이의 제조방법에 관한 것으로, 더욱 상세하게는 제올라이트에 나트륨 실리케이트 수용액을 특정량 분무 배합하여 입상화한 다음 분급하고 일정 크기 이상의 입경을 가지는 입상 조성물은 칼륨염 수용액 처리한 후 탈수하여 3A형 제올라이트 입상 성형체를 제조하며, 상기 입경 범위를 벗어나는 입상 조성물은 다시 입상화 과정으로 재순환하는 과정으로 이루어지도록 구성함으로써, 기존의 제조공정과는 달리 제올라이트 분말을 입상화하기 이전에 나트륨형 제올라이트를 3A형의 칼륨 제올라이트로 전처리하는 공정이 생략되어 더욱 간단한 공정으로 이루어지며, 또한 기존의 입상화 과정에서 제올라이트의 기계적 강도를 증가시키기 위하여 사용하던 점토계 무기 결합제의 첨가없이 제올라이트 분말에 순수한 수용성 나트륨 실리케이트를 사용하여 입상화한 다음 칼륨 실리케이트를 형성시킴으로써 중합 및 부반응이 억제될 뿐만 아니라 입상 성형체의 결합력과 내마모성 등의 기계적 물성과 수분에 대한 선택적 흡착능이 보다 우수하여 특히 반도체 및 정밀화학 공정의 수분 흡착제로 사용될 경우 더욱 효과적으로 작용하는 진보된 3A형 제올라이트 입상 성형체와 이의 제조방법에 관한 것이다.

公开(公告)号：KR1020040084302A

公开(公告)日：2004-10-06

申请号：KR1020030019276

申请日：2003-03-27

Applicant: 한국화학연구원

Inventor： 이정민 ,  서정권 ,  홍지숙 ,  정윤호

IPC: C01B39/14

CPC classification number: C01B39/026 ,  C01B39/14

Abstract: PURPOSE: 3A type granular zeolite is provided to obtain superior selective moisture adsorption capacity by controlling pore size of granular composition by a pretreatment omitted simple method, improving mechanical properties and excluding side reaction, and a preparation method of the 3A type granular zeolite is provided. CONSTITUTION: The preparation method comprises first process of granulating the blended material after blending zeolite with sodium silicate aqueous solution; second process of classifying the granulated material having diameter of 1 to 6 mm from the granulated material; and third process of separating and dehydrating granular compact prepared after dipping the granulated material classified in the classification process into potassium salt aqueous solution, wherein the preparation method comprises a process of recirculating granulated material except the granulated material having diameter of 1 to 6 mm classified in the second process to the first process, wherein zeolite of the first process is a mixture of 40 to 90 wt.% of zeolite powder newly added and 10 to 60 wt.% of zeolite granulated material recirculated after passing through the second process, wherein the sodium silicate aqueous solution has a concentration of 15 to 38%, wherein the first process is performed by granulating the blended material after blending 75 to 92 wt.% of zeolite with 8 to 25 wt.% of sodium silicate aqueous solution, wherein the potassium salt aqueous solution is potassium chloride aqueous solution, wherein dipping of the third process is performed in the temperature range of 20 to 40 deg.C. The 3A type granular zeolite is characterized in that it is prepared by a preparation method comprising first process of granulating the blended material after blending zeolite with sodium silicate aqueous solution; second process of classifying the granulated material having diameter of 1 to 6 mm from the granulated material; and third process of separating and dehydrating granular compact prepared after dipping the granulated material classified in the classification process into potassium salt aqueous solution, wherein the granular compact comprises 75 to 92 wt.% of zeolite and 8 to 25 wt.% of potassium silicate based on the solid content.

Abstract translation: 目的：提供3A型颗粒沸石，通过预处理省略简单的方法控制颗粒组合物的孔径，改善机械性能，排除副反应，获得优异的选择性吸湿能力，并提供了3A型颗粒沸石的制备方法。 构成：该制备方法包括将沸石与硅酸钠水溶液共混后的混合材料造粒的第一工序; 从造粒材料分选直径为1〜6mm的造粒材料的第二工序; 将分级处理后的造粒材料浸渍在钾盐水溶液中后，分离脱水后的颗粒状压块的第三工序，其中，制备方法包括将直径为1〜6mm的造粒材料再循环的工序， 第一种方法的第二种方法，其中第一种方法的沸石是新加入的沸石粉末的40-90％（重量）和通过第二种方法后再循环的10-60％（重量）的沸石颗粒材料的混合物，其中 硅酸钠水溶液的浓度为15〜38％，其中，第一工序是将75〜92重量％的沸石与8〜25重量％的硅酸钠水溶液混合后，使混合材料成粒， 盐水溶液是氯化钾水溶液，其中第三种方法的浸渍在温度​​下进行 ge为20〜40℃。 3A型颗粒沸石的特征在于其通过制备方法制备，包括在沸石与硅酸钠水溶液共混之后使混合材料成粒的第一工艺; 从造粒材料分选直径为1〜6mm的造粒材料的第二工序; 以及将分级处理后的造粒物浸渍在钾盐水溶液中后分离脱水的颗粒状压块的第三工序，其中，所述粒状体包含75〜92重量％的沸石和8〜25重量％的硅酸钾系 固体含量。