RU2003103589A - METHOD FOR PRODUCING PROPYLENE OXIDE - Google Patents

METHOD FOR PRODUCING PROPYLENE OXIDE

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Publication number
RU2003103589A
RU2003103589A RU2003103589/04A RU2003103589A RU2003103589A RU 2003103589 A RU2003103589 A RU 2003103589A RU 2003103589/04 A RU2003103589/04 A RU 2003103589/04A RU 2003103589 A RU2003103589 A RU 2003103589A RU 2003103589 A RU2003103589 A RU 2003103589A
Authority
RU
Russia
Prior art keywords
methanol
mixture
separated
propylene oxide
methyl formate
Prior art date
Application number
RU2003103589/04A
Other languages
Russian (ru)
Other versions
RU2276668C2 (en
Inventor
Хоаким Энрике ТЕЛЕС
Алвин РЕФИНГЕР
Петер БАССЛЕР
Анне ВЕНЦЕЛЬ
Норберт Рибер
Петер РУДОЛЬФ
Original Assignee
Басф Акциенгезельшафт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10032885A external-priority patent/DE10032885A1/en
Application filed by Басф Акциенгезельшафт filed Critical Басф Акциенгезельшафт
Publication of RU2003103589A publication Critical patent/RU2003103589A/en
Application granted granted Critical
Publication of RU2276668C2 publication Critical patent/RU2276668C2/en

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Claims (9)

1. Способ получения пропиленоксида в присутствии метанола, по которому от смеси, содержащей пропиленоксид и метанол, отделяют пропиленоксид и полученную в результате смесь, содержащую метанол, перерабатывают, отличающийся тем, что при переработке от смеси, содержащей метанол и метилформиат, метанол отделяют.1. A method of producing propylene oxide in the presence of methanol, in which propylene oxide is separated from a mixture containing propylene oxide and methanol and the resulting mixture containing methanol is processed, characterized in that methanol is separated from the mixture containing methanol and methyl formate. 2. Способ по п.1, отличающийся тем, что отделение метанола от смеси, содержащей метанол и метилформиат, проводят в перегонной колонне с, как минимум, пятью теоретическими тарелками при давлении в пределах от 0,2 до 50 бар.2. The method according to claim 1, characterized in that the separation of methanol from a mixture containing methanol and methyl formate is carried out in a distillation column with at least five theoretical plates at a pressure in the range from 0.2 to 50 bar. 3. Способ по п.1 или 2, отличающийся тем, что в отделенном в ходе осуществления переработки метаноле содержание метилформиата составляет менее 500 млн-1.3. A method according to claim 1 or 2, characterized in that the separated during processing of methanol methyl formate content of less than 500 million -1. 4. Способ по одному из пп.1-3, отличающийся тем, что в ходе осуществления переработки отделенный от метилформиата метанол опять возвращают в реакцию по данному способу.4. The method according to one of claims 1 to 3, characterized in that during the processing, the methanol separated from methyl formate is again returned to the reaction by this method. 5. Способ по одному из пп.1-4, по которому, (I) как минимум, на одной стадии реакции пропиленоксид получают из пропена и перекиси водорода в присутствии метанола, при этом образуется смесь (CI), которая содержит метанол, пропиленоксид и воду, (II) от смеси (CI) отделяют пропиленоксид, при этом получают смесь (CII), которая содержит метанол и воду, (III) от смеси (CII) отделяют воду, при этом получают смесь (CIII), содержащую метанол и метилформиат, (IV) от смеси (CIII) отделяют метанол и (V) отделенный согласно (IV) метанол возвращают назад в (I).5. The method according to one of claims 1 to 4, in which, (I) at least at one stage of the reaction, propylene oxide is obtained from propene and hydrogen peroxide in the presence of methanol, thereby forming a mixture (CI), which contains methanol, propylene oxide and water, (II) propylene oxide is separated from mixture (CI) to give mixture (CII) which contains methanol and water, (III) water is separated from mixture (CII) to obtain mixture (CIII) containing methanol and methyl formate , (IV) methanol is separated from the mixture (CIII) and (V) the methanol separated according to (IV) is returned to (I). 6. Способ по п.5, отличающийся тем, что воду согласно (III) отделяют при перегонке, причем (VI) от смеси (CII) в первой перегонной колонне через головную часть отделяют смесь (CVI), которая, главным образом, содержит метанол и метилформиат, (VII) полученная из первой перегонной колонны смесь через нижнюю часть колонны направляется в качестве сырья во вторую перегонную колонну, (VIII) из второй перегонной колонны через головную часть получают смесь (CVIII), которая, главным образом, содержит метанол и метилформиат, и (IX) смеси (CVI) и (CVIII) объединяют при получении смеси (CIII).6. The method according to claim 5, characterized in that the water according to (III) is separated by distillation, and (VI) from the mixture (CII) in the first distillation column, the mixture (CVI), which mainly contains methanol, is separated through the head part and methyl formate, (VII) the mixture obtained from the first distillation column through the bottom of the column is sent as raw material to the second distillation column, (VIII) from the second distillation column, through the head part, a mixture (CVIII) is obtained, which mainly contains methanol and methyl formate , and (IX) mixtures of (CVI) and (CVIII) are combined upon receipt with Mesi (CIII). 7. Способ по п.5 или 6, отличающийся тем, что отделение пропиленоксида согласно (II) осуществляют, как минимум, в две стадии (а) и (б), причем (а) от смеси (CI), которая в дополнение к метанолу, пропиленоксиду и воде в (I) содержит непрореагировавший пропен, пропен при получении смеси (Са), содержащей метанол, пропиленоксид и воду, отделяют и (б) от смеси (Са) при получении смеси (CII) отделяют пропиленоксид.7. The method according to claim 5 or 6, characterized in that the separation of propylene oxide according to (II) is carried out in at least two stages (a) and (b), and (a) from the mixture (CI), which in addition to methanol, propylene oxide and water in (I) contain unreacted propene, propene is separated in the preparation of mixture (Ca) containing methanol, propylene oxide and water, and (b) propylene oxide is separated from mixture (Ca) in the preparation of mixture (CII). 8. Способ по п.7, отличающийся тем, что отделение согласно (а) и (б) осуществляют при перегонке при (а) давлении в пределах от 0,2 до 25 бар в колонне с, как минимум, 5 теоретическими тарелками и (б) давлении в пределах от 0,3 до 10 бар в колонне с, как минимум, 20 теоретическими тарелками.8. The method according to claim 7, characterized in that the separation according to (a) and (b) is carried out during distillation at (a) a pressure in the range from 0.2 to 25 bar in a column with at least 5 theoretical plates and ( b) a pressure in the range from 0.3 to 10 bar in a column with at least 20 theoretical plates. 9. Способ по одному из пп.1-8, отличающийся тем, что для получения пропиленоксида применяют цеолитный катализатор, предпочтительно титансиликалитный катализатор и, в частности, титансиликалитный катализатор структуры TS-1.9. The method according to one of claims 1 to 8, characterized in that a zeolite catalyst, preferably a titanium silicalite catalyst and, in particular, a titanium silicalite catalyst of structure TS-1, is used to produce propylene oxide.
RU2003103589/04A 2000-07-06 2001-07-05 Propylene oxide production process RU2276668C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032885A DE10032885A1 (en) 2000-07-06 2000-07-06 Process for the production of propylene oxide
DE10032885.7 2000-07-06

Publications (2)

Publication Number Publication Date
RU2003103589A true RU2003103589A (en) 2004-09-20
RU2276668C2 RU2276668C2 (en) 2006-05-20

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RU2003103589/04A RU2276668C2 (en) 2000-07-06 2001-07-05 Propylene oxide production process

Country Status (15)

Country Link
US (1) US6849162B2 (en)
EP (1) EP1296969B1 (en)
CN (1) CN1200934C (en)
AT (1) ATE428703T1 (en)
AU (1) AU2001267586A1 (en)
BR (1) BR0112226A (en)
CA (1) CA2414779A1 (en)
DE (2) DE10032885A1 (en)
MX (1) MX244293B (en)
MY (1) MY128263A (en)
RU (1) RU2276668C2 (en)
SA (1) SA01220359B1 (en)
TW (1) TW588045B (en)
WO (1) WO2002002545A1 (en)
ZA (1) ZA200300103B (en)

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