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公开(公告)号:KR1019960005512B1
公开(公告)日:1996-04-25
申请号:KR1019920020188
申请日:1992-10-30
Applicant: 한국과학기술연구원
IPC: C07C53/08
CPC classification number: Y02P20/584
Abstract: To produce methyl acetate, acetic acid, acetic anhydride in the same operation line, it is required to have five step : 1st step-methanol is changed to acetic acid and methyl acetate by gas phase CO carbonyl reaction under carbonyl catalyst and halide co-catalyst; 2nd step-from column bottom, acetic acid is seperated and recovered, low Bp.compound of co-catalyst and methyl acetate is seperated in column top section; 3rd step-seperated methyl acetate from 2nd step is distilled and unrecovered methyl acetate is sent to 2nd carbonyl reactor with co-catalyst; 4th step-by second carbonyl reaction, methyl acetate and co-catalyst from 3rd step is synthesized to acetic anhydride; 5th step - acetic anhydride is seperated from co-catalyst and seperated co-catalyst is recycled to 1st carbonyl reactor. Compared with a known process, this method is simple and increases productivity.
Abstract translation: 为了在相同的操作线上生产乙酸甲酯,乙酸,乙酸酐,需要有五个步骤:在羰基催化剂和卤化物助催化剂下,通过气相CO羰基反应将第一步甲醇变为乙酸和乙酸甲酯 ; 从塔底第二步,分离回收乙酸,在塔顶部分离出低沸点的助催化剂和乙酸甲酯。 蒸馏第二步骤的第三步分离的乙酸甲酯,并将未回收的乙酸甲酯送入具有助催化剂的第二羰基反应器; 第四步第二次羰基反应,将乙酸甲酯和第三步助催化剂合成为乙酸酐; 第五步 - 将乙酸酐与助催化剂分离,将分离的助催化剂再循环至第一羰基反应器。 与已知的方法相比,该方法简单,提高了生产效率。
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公开(公告)号:KR1019960003797B1
公开(公告)日:1996-03-22
申请号:KR1019920025281
申请日:1992-12-23
Applicant: 한국과학기술연구원
IPC: B01J31/20
CPC classification number: C07C51/54 , B01J21/18 , B01J23/58 , B01J23/8946 , B01J27/06 , B01J31/0231 , B01J31/1616 , B01J31/20 , B01J31/2404 , B01J31/40 , B01J2231/34 , B01J2531/822 , C07C51/12 , C07C67/36 , Y02P20/584 , C07C53/08 , C07C53/12 , C07C69/14
Abstract: Acetic acid is prepared by the reaction of gaseous methanol and carbon monoxide at the ratio of 1:0.1 - 1:100 mole, 97.3 kg/cm2(1,000 psi), 100-400 degree C in the presence of catalyst and halogen containing co-catalyst such as CH3I, CH3Br, CH3Cl, I2, Br2, Cl2, HI, HBr and HCl. 0.1-20 Wt. % of rhodium compound on the volume of inactive carrier is solved in aqueous or organic solvent. Obtained compound is carried with 1-1000 mole % of alkali metal, alkali earth metal or transition metal on the volume of rhodium, and calcinated at 100-150 degree C to give the carbonylation catalyst.
Abstract translation: 乙酸通过在催化剂存在下以1:0.1-1:100摩尔,97.3kg / cm 2(1,000psi),100-400℃的比例的气态甲醇和一氧化碳的反应制备, 催化剂如CH3I,CH3Br,CH3Cl,I2,Br2,Cl2,HI,HBr和HCl。 0.1-20 Wt %的铑化合物对无活性载体的体积溶解在水溶液或有机溶剂中。 得到的化合物以1-1000摩尔%的碱金属,碱土金属或过渡金属在铑体积上进行,并在100-150℃下煅烧,得到羰基化催化剂。
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公开(公告)号:KR1019940000148A
公开(公告)日:1994-01-03
申请号:KR1019920011524
申请日:1992-06-30
Applicant: 한국과학기술연구원
IPC: B01J23/58
Abstract: 메탄올의 기상 카르보닐화 반응에 의한 아세트산 제조용 촉매 및 이를 이용한 아세트트산 제조방법이 제공된다. 이 촉매는 물 또는 유기 용매 중에 용해시킨 로듐 화합물을 알칼리 금속 또는 알칼리 토금속과 함께 불활성 담체에 담지시켜 200 내지 500℃에서 소결시킴으로써 제조된다. 이 촉매를 메탄올과 일산화탄소를 반응시키는 기상 아세트산의 제조방법에 이용하여 종래의 기상 아세트산의 제조방법에 비해 아세트산 선택도를 크게 개선시킬 수 있다.
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