YU49456B - Postupak za kontinualnu proizvodnju vodenih rastvora formaldehida - Google Patents
Postupak za kontinualnu proizvodnju vodenih rastvora formaldehidaInfo
- Publication number
- YU49456B YU49456B YU81195A YU81195A YU49456B YU 49456 B YU49456 B YU 49456B YU 81195 A YU81195 A YU 81195A YU 81195 A YU81195 A YU 81195A YU 49456 B YU49456 B YU 49456B
- Authority
- YU
- Yugoslavia
- Prior art keywords
- methanol
- air
- mixture
- feed column
- column
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
- C07C47/04—Formaldehyde
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
- C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Postupak za kontinualno dobijanje vodenih rastvora formaldehida, narocito rastvora cija se koncentracija krece od 53 mas% do 57 mas.%, koji se sastoji od sledecih stupnjeva: (a) dovodjenja vazduha i metanola u isparivac u kome metanol isparava stvarajuci smesu metanola i vazduha u gasnoj fazi; (b) reagovanja pomenute smese metanola i vazduha, u gasnoj fazi, na katalizatoru, na povisenoj temperaturi, radi dobijanja reakcione smese koja sadrzi formaldehid, nastao parcijalnom konverzijom metanola, kao i vodenu paru i gasove koji se ne kondenzuju, a to su azot iz vazduha, vodonik koji nastaje pri reakciji i male kolicine ugljen-dioksida, ugljen-monoksida, metana i neutrosenog kiseonika; (c) provodjenja pomenute reakcione smese kroz bar jednu apsorpcionu kolonu u kojoj pomenuta smesa biva apsorbovana u vodenom rastvoru koji protice u suprotnom smeru; (d) razdvajanja pomenutog vodenog rastvora i pomenutih gasova koji se ne kondenzuju u pomenutim apsorpcionim kolonama; (e) hladjenja i ispiranja pomenutih gasova koji se ne kondenzuju, a koji povlace male kolicine metanola i formaldehida; i (f) frakcionog destilisanja pomenutog vodenog rastvora, uz odgovarajuce izdvajanje metanola, pri cemu se to vrsi u koloni za napajanje i najmanje dva dodatna razmenjivaca toplote, povezana sa bar jednom pomenutom apsorpcionom kolonom, naznacen time, sto se na pomenutoj koloni za napajanje vrsi dovodjenje vazduha i dovodjenje metanola koji dolazi spolja, kao i dovodjenje prvog sekundarnog toka metanola koji potice od izlaznog toka hladnog metanola sa dna kolone za napajanje; sto pomenuti izlazni tok hladnog metanola sukcesivno recirkulise kroz pomenute dodatne razmenjivace toplote, i biva podeljen na pomenuti prvi sekundarni tok koji se vraca u vrh kolone za napajanje i na drugi sekundarni tok koji otice u pomenuti isparivac; sto od vrha kolone za napajanje postoji izlazni tok smese metanola i vazduha, koji protice izmedju pomenute kolone za napajanje i pomenutog isparivaca; i sto se pomenuti hladni metanol u unutrasnjem delu pomenute kolone za napajanje rashladjuje isparavanjem metanola koji cini deo pomenute smese metanola i vazduha. Prijava sadrzi jos 16 zavisnih patentnih zahteva.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES09500924A ES2103193B1 (es) | 1995-05-16 | 1995-05-16 | Procedimiento para la preparacion en continuo de soluciones acuosas de formaldehido. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| YU81195A YU81195A (sh) | 1998-08-14 |
| YU49456B true YU49456B (sh) | 2006-03-03 |
Family
ID=8290352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| YU81195A YU49456B (sh) | 1995-05-16 | 1995-12-28 | Postupak za kontinualnu proizvodnju vodenih rastvora formaldehida |
Country Status (31)
| Country | Link |
|---|---|
| US (1) | US5877356A (sh) |
| EP (1) | EP0748786B1 (sh) |
| JP (1) | JP2857993B2 (sh) |
| KR (1) | KR100249277B1 (sh) |
| CN (1) | CN1058698C (sh) |
| AR (1) | AR000222A1 (sh) |
| AT (1) | ATE181318T1 (sh) |
| AU (1) | AU700831B2 (sh) |
| CA (1) | CA2162320C (sh) |
| CZ (1) | CZ289975B6 (sh) |
| DE (1) | DE69510335T2 (sh) |
| DK (1) | DK0748786T3 (sh) |
| EE (1) | EE03390B1 (sh) |
| ES (1) | ES2103193B1 (sh) |
| FI (1) | FI956350A (sh) |
| GR (1) | GR3031140T3 (sh) |
| HR (1) | HRP950553B1 (sh) |
| HU (1) | HU215535B (sh) |
| IN (1) | IN184995B (sh) |
| MY (1) | MY117093A (sh) |
| NO (1) | NO310107B1 (sh) |
| NZ (1) | NZ280417A (sh) |
| PL (1) | PL181485B1 (sh) |
| RU (1) | RU2112768C1 (sh) |
| SA (1) | SA95160407A (sh) |
| SG (1) | SG42795A1 (sh) |
| SI (1) | SI0748786T1 (sh) |
| TR (1) | TR199501639A2 (sh) |
| TW (1) | TW308585B (sh) |
| UA (1) | UA40622C2 (sh) |
| YU (1) | YU49456B (sh) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE530611C2 (sv) * | 2006-03-24 | 2008-07-15 | Perstorp Specialty Chem Ab | Återvinning av exoterm energi vid framställning av formaldehyd |
| DE102008059701A1 (de) * | 2008-11-29 | 2010-06-02 | Bayer Materialscience Ag | Verfahren zur Herstellung von wässrigen Formaldehyd-Lösungen |
| JP2012524046A (ja) * | 2009-04-20 | 2012-10-11 | ビーエーエスエフ ソシエタス・ヨーロピア | アミナールの段階を介したｍｄａの製造方法 |
| CN101671239B (zh) * | 2009-10-14 | 2012-11-07 | 江阴市华燕石化机械装备有限公司 | 一种用于生产甲醛的双循环系统及双循环工艺 |
| CN102503785A (zh) * | 2011-11-02 | 2012-06-20 | 天津渤海化工有限责任公司天津碱厂 | 一种聚甲醛生产过程中杂醇回收利用方法 |
| CN103113201A (zh) * | 2013-03-12 | 2013-05-22 | 江苏凯茂石化科技有限公司 | 乙醛生产工艺 |
| AT516530B1 (de) * | 2014-11-20 | 2018-02-15 | Johnson Matthey Plc | Verfahren und Vorrichtung zur Herstellung einer wässrigen Lösung von Formaldehyd |
| CN106349043B (zh) * | 2016-08-30 | 2018-11-06 | 安徽金禾实业股份有限公司 | 一种稀乙醛精馏残液回收使用方法 |
| KR102104920B1 (ko) * | 2020-02-05 | 2020-04-27 | 박근식 | 포름알데히드 수용액 제조방법 |
| WO2021220150A2 (en) * | 2020-04-28 | 2021-11-04 | University of Maribor | The process of removing formaldehyde and volatile organic compounds from waste industrial gases |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113972A (en) | 1959-02-04 | 1963-12-10 | Sumitomo Chemical Co | Process for producing a highly concentrated formaldehyde solution |
| US3174911A (en) | 1961-03-09 | 1965-03-23 | Burnett And Rolfe Ltd | Formaldehyde manufacture |
| GB1158336A (en) | 1965-12-01 | 1969-07-16 | Karl Fischer App U Rohrleitung | Process for the Direct Production of Highly Concentrated Aqueous Formaldehyde Solutions. |
| DE2308409A1 (de) * | 1973-02-21 | 1974-08-29 | Basf Ag | Verfahren zur herstellung von konzentrierten, waessrigen loesungen von formaldehyd |
| DE2444586C3 (de) | 1974-09-18 | 1986-07-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von konzentrierten, wäßrigen Lösungen von Formaldehyd |
| US4383123A (en) * | 1981-10-08 | 1983-05-10 | Monsanto Company | Manufacture of aqueous formaldehyde |
| US4454354A (en) | 1982-08-02 | 1984-06-12 | Monsanto Company | Manufacture of aqueous formaldehyde |
| JPS60101401A (ja) * | 1983-11-07 | 1985-06-05 | 三菱瓦斯化学株式会社 | ホルムアルデヒド生成ガスの廃熱回収法 |
| JPH0662478B2 (ja) | 1984-04-12 | 1994-08-17 | 三菱瓦斯化学株式会社 | ホルムアルデヒド水溶液の製造法 |
| DE3824360A1 (de) * | 1988-07-19 | 1990-01-25 | Bayer Ag | Verfahren zur herstellung von waessrigen formaldehydloesungen |
| US4990685A (en) | 1988-07-19 | 1991-02-05 | Bayer Aktiengesellschaft | Process for the preparation of aqueous formaldehyde solutions |
-
1995
- 1995-05-16 ES ES09500924A patent/ES2103193B1/es not_active Expired - Fee Related
- 1995-11-03 EE EE9500062A patent/EE03390B1/xx not_active IP Right Cessation
- 1995-11-06 DE DE69510335T patent/DE69510335T2/de not_active Expired - Lifetime
- 1995-11-06 EP EP95500151A patent/EP0748786B1/en not_active Expired - Lifetime
- 1995-11-06 SI SI9530310T patent/SI0748786T1/xx not_active IP Right Cessation
- 1995-11-06 AT AT95500151T patent/ATE181318T1/de not_active IP Right Cessation
- 1995-11-06 DK DK95500151T patent/DK0748786T3/da active
- 1995-11-07 MY MYPI95003361A patent/MY117093A/en unknown
- 1995-11-07 NZ NZ280417A patent/NZ280417A/en unknown
- 1995-11-07 CA CA002162320A patent/CA2162320C/en not_active Expired - Lifetime
- 1995-11-09 SG SG1995001791A patent/SG42795A1/en unknown
- 1995-11-10 HR HR9500924A patent/HRP950553B1/xx not_active IP Right Cessation
- 1995-11-15 TW TW084112072A patent/TW308585B/zh not_active IP Right Cessation
- 1995-11-16 AU AU37915/95A patent/AU700831B2/en not_active Ceased
- 1995-11-21 SA SA95160407A patent/SA95160407A/ar unknown
- 1995-11-28 IN IN1540CA1995 patent/IN184995B/en unknown
- 1995-11-29 AR AR33442195A patent/AR000222A1/es unknown
- 1995-11-30 KR KR1019950045804A patent/KR100249277B1/ko not_active IP Right Cessation
- 1995-12-19 PL PL95311924A patent/PL181485B1/pl unknown
- 1995-12-21 TR TR95/01639A patent/TR199501639A2/xx unknown
- 1995-12-21 RU RU95122440A patent/RU2112768C1/ru active
- 1995-12-27 CN CN95120121A patent/CN1058698C/zh not_active Expired - Lifetime
- 1995-12-27 HU HU9503811A patent/HU215535B/hu unknown
- 1995-12-27 NO NO955321A patent/NO310107B1/no unknown
- 1995-12-28 JP JP7342032A patent/JP2857993B2/ja not_active Expired - Lifetime
- 1995-12-28 UA UA95125541A patent/UA40622C2/uk unknown
- 1995-12-28 YU YU81195A patent/YU49456B/sh unknown
- 1995-12-29 FI FI956350A patent/FI956350A/fi not_active Application Discontinuation
- 1995-12-29 CZ CZ19953507A patent/CZ289975B6/cs not_active IP Right Cessation
-
1997
- 1997-07-22 US US08/898,126 patent/US5877356A/en not_active Expired - Lifetime
-
1999
- 1999-09-02 GR GR990402225T patent/GR3031140T3/el unknown
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