ES2106451T3 - Procedimiento para la purificacion de carbonatos de diarilo. - Google Patents
Procedimiento para la purificacion de carbonatos de diarilo.Info
- Publication number
- ES2106451T3 ES2106451T3 ES94304290T ES94304290T ES2106451T3 ES 2106451 T3 ES2106451 T3 ES 2106451T3 ES 94304290 T ES94304290 T ES 94304290T ES 94304290 T ES94304290 T ES 94304290T ES 2106451 T3 ES2106451 T3 ES 2106451T3
- Authority
- ES
- Spain
- Prior art keywords
- dpc
- distillation
- water
- washing
- alambique
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/08—Purification; Separation; Stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
SEGUN EL MODO DE PURIFICACION DEL CARBONATO DE DIFENIL (DPC) LOS CARBONATOS DE DIARIL SE PURIFICAN Y SE LIBERAN DE CONTAMINANTES TALES COMO CLORUROS INORGANICOS Y ORGANICOS, IONES DE METAL, COMPONENTES FERROSOS Y CUERPOS DE COLOR. EL PROCESO ES UN PROCEDIMIENTO DE DOS ETAPAS QUE SE INICIA CON UN LAVADO CON AGUA DEL CARBONATO FUNDIDO SEGUIDO POR UNA DESTILACION. EN UNA CONFORMACION MAS ADECUADA, EL DPC CRUDO SE CARGA EN EL TANQUE DE LAVADO Y SE LAVA EN ESTADO FUNDIDO TRES VECES. SE UTILIZA UN PRODUCTO CONDENSADO DE CORRIENTE FRESCA PARA CADA LAVADO QUE CONSTA DE UN PERIODO DE AGITACION SEGUIDO POR UN PERIODO DE DECANTACION Y POSTERIORMENTE POR LA ELIMINACION DEL AGUA. DESPUES DEL TERCER LAVADO, EL DPC FUNDIDO SE TRANSFIERE A UN ALAMBIQUE PARA SU DESTILACION. LA CAPA DESECHABLE QUE SE FORMA EN LA INTERCONEXION DEL AGUA/DPC DURANTE EL LAVADO SE QUITA Y NO SE PERMITE QUE PASE A TRAVES DEL ALAMBIQUE. SE LLEVA A CABO UNA DESTILACION SUBITA BAJO UN VACIO CONSTANTE. SE OBTIENE TRES CORTES SUPERIORES PRODUCTOS LIGEROS, PRODUCTOS INTERMEDIOS Y DPC DEPENDIENDO DE LA TEMPERATURA DEL VAPOR DE LA PARTE SUPERIOR.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/084,647 US5498319A (en) | 1993-06-29 | 1993-06-29 | Process for purifying diaryl carbonates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2106451T3 true ES2106451T3 (es) | 1997-11-01 |
Family
ID=22186297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES94304290T Expired - Lifetime ES2106451T3 (es) | 1993-06-29 | 1994-06-14 | Procedimiento para la purificacion de carbonatos de diarilo. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5498319A (es) |
| EP (1) | EP0633241B1 (es) |
| JP (1) | JP2862796B2 (es) |
| CN (1) | CN1103399A (es) |
| DE (1) | DE69405488T2 (es) |
| ES (1) | ES2106451T3 (es) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030028043A1 (en) * | 1995-08-01 | 2003-02-06 | Gaylord M. Kissinger | Process for purifying diaryl carbonates |
| DE19600631A1 (de) * | 1996-01-10 | 1997-07-17 | Bayer Ag | Verfahren zur Reinigung von Kohlensäurediarylestern |
| JP4420477B2 (ja) * | 1997-03-04 | 2010-02-24 | 三菱化学株式会社 | 高純度ジアリールカーボネートおよびその製造方法 |
| JP4356120B2 (ja) * | 1998-02-19 | 2009-11-04 | 三菱化学株式会社 | 高純度ジアリールカーボネート及びその製造方法 |
| US6323302B1 (en) | 1998-04-27 | 2001-11-27 | Teijin Limited | Carbonic acid diester, aromatic polycarbonate and facilities, and preparation thereof |
| US5962699A (en) * | 1998-07-23 | 1999-10-05 | Huntsman Petrochemical Corporation | Process for decolorizing organic carbonates |
| US6143937A (en) * | 1998-12-18 | 2000-11-07 | General Electric Company | Recovery of hydroxyaromatic compound from aqueous extract solutions |
| US6294684B1 (en) * | 1999-12-08 | 2001-09-25 | General Electric Company | Method and apparatus for the continuous production of diaryl carbonates |
| CN100383109C (zh) * | 2005-12-07 | 2008-04-23 | 华中科技大学 | 溶析结晶提纯碳酸二苯酯的工艺方法 |
| JP5119703B2 (ja) * | 2007-03-23 | 2013-01-16 | 三菱化学株式会社 | フレーク状ジアリールカーボネートの製造方法 |
| BRPI0822695B1 (pt) * | 2008-05-15 | 2017-05-02 | Asahi Kasei Chemicals Corp | processo para produzir um isocianato |
| WO2009139062A1 (ja) * | 2008-05-15 | 2009-11-19 | 旭化成ケミカルズ株式会社 | イソシアネートの製造方法 |
| WO2012076532A1 (en) | 2010-12-08 | 2012-06-14 | Shell Internationale Research Maatschappij B.V. | Process for purifying aryl group containing carbonates |
| WO2012076519A1 (en) | 2010-12-08 | 2012-06-14 | Shell Internationale Research Maatschappij B.V. | Process for purifying dialkyl carbonate |
| JP2012166559A (ja) * | 2012-04-20 | 2012-09-06 | Mitsubishi Chemicals Corp | フレーク状ジアリールカーボネートの取り扱い方法 |
| JP5650777B2 (ja) * | 2013-03-11 | 2015-01-07 | 旭化成ケミカルズ株式会社 | 炭酸ジアリールを用いるイソシアネートの製造方法 |
| KR102041268B1 (ko) * | 2013-03-15 | 2019-11-06 | 사빅 글로벌 테크놀러지스 비.브이. | 고품질 폴리카보네이트를 제조하기 위한 디페닐 카보네이트의 정제 방법 |
| EP2778186B1 (en) | 2013-03-15 | 2017-07-12 | SABIC Global Technologies B.V. | Production of a polycarbonate with limited metal residuals |
| EP3024782B1 (en) | 2013-07-26 | 2019-06-12 | SABIC Global Technologies B.V. | Method and apparatus for producing high purity phosgene |
| KR102078126B1 (ko) | 2013-07-26 | 2020-02-17 | 사빅 글로벌 테크놀러지스 비.브이. | 고순도 포스겐의 제조 방법 및 제조 장치 |
| WO2015119982A2 (en) | 2014-02-04 | 2015-08-13 | Sabic Global Technologies B.V. | Method for producing carbonates |
| CN105980346B (zh) | 2014-02-04 | 2018-05-18 | 沙特基础工业全球技术有限公司 | 生产碳酸酯的方法 |
| WO2017089441A1 (en) * | 2015-11-26 | 2017-06-01 | Shell Internationale Research Maatschappij B.V. | Process for preparing a diaryl carbonate |
| CN105968005A (zh) * | 2016-06-08 | 2016-09-28 | 泰安众智化工有限责任公司 | 一种氯甲酸苯酯生产固体废弃物回收碳酸二苯酯的方法 |
| CN113577814B (zh) * | 2021-08-16 | 2022-10-18 | 四川中蓝国塑新材料科技有限公司 | 一种用于聚碳酸酯工业化生产的碳酸二苯酯回收装置及方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2362865A (en) * | 1941-07-18 | 1944-11-14 | Gen Chemical Corp | Manufacturie of aromatic esters |
| DE1275541B (de) * | 1965-02-25 | 1968-08-22 | Bayer Ag | Verfahren zur Reinigung von Diarylcarbonaten |
| US3470133A (en) * | 1967-09-15 | 1969-09-30 | Ppg Industries Inc | Water washing polyesters of carbonic acid and diphenols |
| FR2294198A1 (fr) * | 1974-12-11 | 1976-07-09 | Poudres & Explosifs Ste Nale | Procede de purification des oligocarbonates |
| US4697034A (en) * | 1985-11-15 | 1987-09-29 | General Electric Company | Process for making diaryl carbonates |
| SU1698250A1 (ru) * | 1989-11-20 | 1991-12-15 | Уфимский Нефтяной Институт | Способ получени дифенилкарбоната |
| JP2798293B2 (ja) * | 1990-06-04 | 1998-09-17 | 日本ジーイープラスチックス株式会社 | フェノール類の回収方法 |
| US5167946A (en) * | 1990-12-27 | 1992-12-01 | The Dow Chemical Company | Diaryl carbonate process |
| US5189139A (en) * | 1991-08-08 | 1993-02-23 | The Dow Chemical Company | Preparation of polycarbonates comprising separating bisphenol, converting bisphenol to diaryl carbonate and recycling |
-
1993
- 1993-06-29 US US08/084,647 patent/US5498319A/en not_active Expired - Fee Related
-
1994
- 1994-06-14 DE DE69405488T patent/DE69405488T2/de not_active Expired - Fee Related
- 1994-06-14 EP EP94304290A patent/EP0633241B1/en not_active Expired - Lifetime
- 1994-06-14 ES ES94304290T patent/ES2106451T3/es not_active Expired - Lifetime
- 1994-06-27 JP JP6143717A patent/JP2862796B2/ja not_active Expired - Lifetime
- 1994-06-29 CN CN94107687.3A patent/CN1103399A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1103399A (zh) | 1995-06-07 |
| DE69405488T2 (de) | 1998-03-26 |
| DE69405488D1 (de) | 1997-10-16 |
| US5498319A (en) | 1996-03-12 |
| EP0633241B1 (en) | 1997-09-10 |
| EP0633241A1 (en) | 1995-01-11 |
| JPH07138208A (ja) | 1995-05-30 |
| JP2862796B2 (ja) | 1999-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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