KR100690034B1 - 아크릴산의 제조 방법 - Google Patents
아크릴산의 제조 방법 Download PDFInfo
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- KR100690034B1 KR100690034B1 KR1020040040754A KR20040040754A KR100690034B1 KR 100690034 B1 KR100690034 B1 KR 100690034B1 KR 1020040040754 A KR1020040040754 A KR 1020040040754A KR 20040040754 A KR20040040754 A KR 20040040754A KR 100690034 B1 KR100690034 B1 KR 100690034B1
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- South Korea
- Prior art keywords
- acrylic acid
- crystallization
- column
- gas
- weight
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
Abstract
Description
Claims (4)
- a) 아크릴산 원료의 접촉 기상 산화반응에 의해 얻은 아크릴산 함유 가스를 포집탑에 도입하고 포집용 수용액과 접촉시켜, 아크릴산 함유 용액을 얻는 공정;b) 상기 아크릴산 함유 용액을 결정화 공정에 공급하고 아크릴산과 잔류 모액으로 분리하는 공정; 및c) 상기 잔류 모액의 적어도 일부에 증류 공정을 행하고, 상기 증류공정에서 얻은 유출액을 상기 a) 공정의 포집탑에 순환시키는 공정을 포함하는 아크릴산의 제조 방법.
- 제 1항에 있어서, 상기 c) 공정의 증류탑의 탑저액을 아크릴산 이량체 분해 장치에 공급하는 공정을 더 포함하는 것을 특징으로 하는 아크릴산의 제조 방법.
- 제 1항에 있어서, 상기 b) 공정의 잔류 모액의 아세트산 함유량이 2중량% 이상인 것을 특징으로 하는 아크릴산의 제조 방법.
- 제 1항에 있어서, 상기 a) 공정에서 얻은 아크릴산 함유 용액에 포함된 아크롤레인을 분리 처리한 후, 얻은 아크릴산 함유 용액을 사용하여 상기 b) 공정을 행하는 것을 특징으로 하는 아크릴산의 제조 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003160773 | 2003-06-05 | ||
JPJP-P-2003-00160773 | 2003-06-05 |
Publications (2)
Publication Number | Publication Date |
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KR20040108610A KR20040108610A (ko) | 2004-12-24 |
KR100690034B1 true KR100690034B1 (ko) | 2007-03-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020040040754A KR100690034B1 (ko) | 2003-06-05 | 2004-06-04 | 아크릴산의 제조 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7183428B2 (ko) |
EP (1) | EP1484308B1 (ko) |
KR (1) | KR100690034B1 (ko) |
CN (1) | CN100384807C (ko) |
SA (1) | SA04250147B1 (ko) |
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2004
- 2004-06-02 US US10/858,935 patent/US7183428B2/en active Active
- 2004-06-04 KR KR1020040040754A patent/KR100690034B1/ko active IP Right Grant
- 2004-06-04 EP EP04253319.0A patent/EP1484308B1/en active Active
- 2004-06-04 CN CNB2004100631700A patent/CN100384807C/zh active Active
- 2004-06-05 SA SA4250147A patent/SA04250147B1/ar unknown
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Also Published As
Publication number | Publication date |
---|---|
US7183428B2 (en) | 2007-02-27 |
CN100384807C (zh) | 2008-04-30 |
KR20040108610A (ko) | 2004-12-24 |
SA04250147B1 (ar) | 2008-03-25 |
CN1609091A (zh) | 2005-04-27 |
EP1484308B1 (en) | 2018-05-30 |
US20040249199A1 (en) | 2004-12-09 |
EP1484308A1 (en) | 2004-12-08 |
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