KR20190055814A - 관형 반응기를 사용하는 알콕시화 공정 - Google Patents
관형 반응기를 사용하는 알콕시화 공정 Download PDFInfo
- Publication number
- KR20190055814A KR20190055814A KR1020197009151A KR20197009151A KR20190055814A KR 20190055814 A KR20190055814 A KR 20190055814A KR 1020197009151 A KR1020197009151 A KR 1020197009151A KR 20197009151 A KR20197009151 A KR 20197009151A KR 20190055814 A KR20190055814 A KR 20190055814A
- Authority
- KR
- South Korea
- Prior art keywords
- alkylene oxide
- monomer feed
- feed section
- tubular reactor
- length
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 30
- 230000008569 process Effects 0.000 title claims description 17
- 239000000178 monomer Substances 0.000 claims abstract description 167
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 160
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- 239000003054 catalyst Substances 0.000 claims description 51
- 239000000203 mixture Substances 0.000 claims description 44
- 238000006116 polymerization reaction Methods 0.000 claims description 43
- 150000001875 compounds Chemical class 0.000 claims description 25
- 229920000570 polyether Polymers 0.000 claims description 25
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 24
- 239000011541 reaction mixture Substances 0.000 claims description 21
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 15
- 239000002685 polymerization catalyst Substances 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 12
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Abstract
Description
도 2는 본 발명의 대표적인 공정에서 관형 반응기의 단량체 공급 섹션의 일부에서 미반응의 알킬렌 옥시드(URO) 함량 변화의 도식화된 표현이다.
도 3은 본 발명에서 사용하기 위한 관형 반응기의 구현예의 부분적으로 섹션인 정면도이다.
도 4는 본 발명에서 사용하기 위한 관형 반응기의 제2 구현예의 부분적으로 섹션인 정면도이다.
도 5는 본 발명에서 사용하기 위한 관형 반응기의 제3 구현예의 측면도이다.
도 6은 본 발명에서 사용하기 위한 관형 반응기의 제4 구현예의 부분적으로 섹션인 정면도이다.
도 7은 본 발명에서 사용하기 위한 관형 반응기의 제5 구현예의 단면도이다.
도 8은 본 발명에서 사용하기 위한 중합 장치의 개략도이다.
도 9는 본 발명의 대표적인 공정에서 단량체 도입 속도 및 반응 혼합물의 유속을 나타내는 도식화된 표현이다.
도 10은 본 발명에 따라 작동되는 관형 반응기에서의 반응 혼합물의 위치의 함수로서 분자량 및 미반응 산화물 농도를 나타내는 도식화된 표현이다.
Claims (12)
- 입구 말단 및 출구 말단을 갖는 관형 반응기에서 적어도 하나의 알킬렌 옥시드를 중합하여 폴리에터를 제조하기 위한 공정으로서, 개시제 조성물은 적어도 하나의 개시제 화합물을 함유하고 알킬렌 옥시드 중합 촉매는 상기 입구 말단에 연속적으로 도입되고 폴리에터는 출구 말단으로부터 연속적으로 제거되고, 관형 반응기는 적어도 하나의 단량체 공급 섹션을 포함하고, 적어도 하나의 알킬렌 옥시드는 중합 조건 하에 상기 단량체 공급 섹션의 길이를 따라 배열된 다수의 알킬렌 옥시드 포트를 통해 연속적으로 도입되어 반응 혼합물을 형성하고, 상기 공정은 추가로 미반응 알킬렌 옥시드의 농도가 단량체 공급 섹션의 길이에 따른 각각의 지점에서 0.1 내지 12 중량%의 범위로 유지되는 것을 특징으로 하는 공정.
- 제1항에 있어서,
단량체 공급 섹션의 단위 길이 당 알킬렌 옥시드의 첨가 속도가 하류 방향의 단량체 공급 섹션의 길이에 따라 증가하는, 공정. - 제1항 또는 제2항에 있어서,
단량체 공급 섹션 내의 알킬렌 옥시드 주입 포트의 수가 적어도 50개인, 공정. - 제1항 내지 제3항 중 어느 한 항에 있어서,
관형 반응기가 반투과성 막에 의해 알킬렌 옥시드의 저장조로부터 이격되어 있고, 알킬렌 옥시드가 반투과성 막을 통과하여 관형 반응기 내로 도입되는, 공정. - 제1항 내지 제4항 중 어느 한 항에 있어서,
관형 반응기가 쉘 내에 배치되고, 반응 열이 쉘을 통해 열 유체를 통과시켜 관형 반응기의 외부 표면과 접촉하여 관형 반응기로부터 제거되는, 공정. - 제1항 내지 제5항 중 어느 한 항에 있어서,
관형 반응기가 관형 반응기의 길이를 따라 연속적으로 배열된 적어도 2개의 단량체 공급 섹션을 포함하는 공정으로서, 알킬렌 옥시드의 조성물은 적어도 하나의 다른 단량체 공급 섹션에서의 것 이외의 하나의 단량체 공급 섹션에서 상이한 것인, 공정. - 제1항 내지 제6항 중 어느 한 항에 있어서,
관형 반응기가 적어도 하나의 단량체 공급 섹션의 하류에 소화 섹션을 포함하는 공정으로서, 중합 조건이 상기 소화 섹션에서 유지되고 알킬렌 옥시드가 상기 소화 섹션으로 도입되지 않는, 공정. - 제1항 내지 제7항 중 어느 한 항에 있어서,
관형 반응기가 적어도 하나의 단량체 공급 섹션의 상류에 촉매 활성화 섹션을 포함하는, 공정. - 제1항 내지 제8항 중 어느 한 항에 있어서,
개시제 조성물이 회분식 반응기 또는 연속 교반 탱크 반응기의 상류에서 적어도 하나의 알킬렌 옥시드를 중합시켜 형성된 중간 폴리에터 생성물을 포함하고, 상기 중간 폴리에터 생성물이 상류 회분식 반응기 또는 연속 교반 탱크 반응기로부터 관형 반응기의 입구 말단에 공급되는, 공정. - 제1항 내지 제9항 중 어느 한 항에 있어서,
폴리에터 일부를 개시제 조성물 성분으로서 관형 반응기의 입구 말단으로 재순환하는 단계를 포함하는 공정. - 제1항 내지 제10항 중 어느 한 항에 있어서,
개시제 조성물이 12 중량% 이하의 히드록실 기를 함유하는, 공정. - 제1항 내지 제11항 중 어느 한 항에 있어서,
단량체 공급 섹션 내의 온도가 130 내지 170℃인, 공정.
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