RU2001101477A - DEHYDRATION METHOD - Google Patents

DEHYDRATION METHOD

Info

Publication number
RU2001101477A
RU2001101477A RU2001101477/04A RU2001101477A RU2001101477A RU 2001101477 A RU2001101477 A RU 2001101477A RU 2001101477/04 A RU2001101477/04 A RU 2001101477/04A RU 2001101477 A RU2001101477 A RU 2001101477A RU 2001101477 A RU2001101477 A RU 2001101477A
Authority
RU
Russia
Prior art keywords
formaldehyde
water
methanol
formaldehyde solution
containing product
Prior art date
Application number
RU2001101477/04A
Other languages
Russian (ru)
Other versions
RU2232744C2 (en
Inventor
Уилльям Дэвид ПАРТЕН
Original Assignee
ИНЕОС АКРИЛИКС Ю Кей ЛИМИТЕД
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 GBGB9812083.5A external-priority patent/GB9812083D0/en
Application filed by ИНЕОС АКРИЛИКС Ю Кей ЛИМИТЕД filed Critical ИНЕОС АКРИЛИКС Ю Кей ЛИМИТЕД
Publication of RU2001101477A publication Critical patent/RU2001101477A/en
Application granted granted Critical
Publication of RU2232744C2 publication Critical patent/RU2232744C2/en

Links

Claims (13)

1. Способ отделения содержащего формальдегид продукта от раствора формальдегида, содержащего формальдегид, воду и метанол, где указанный содержащий формальдегид продукт содержит значительно меньше воды, чем указанный раствор формальдегида, включающий перегонку указанного раствора формальдегида в присутствии захватывающего воду соединения.1. A method of separating a formaldehyde-containing product from a formaldehyde solution containing formaldehyde, water and methanol, wherein said formaldehyde-containing product contains significantly less water than said formaldehyde solution, comprising distilling said formaldehyde solution in the presence of a water-capturing compound. 2. Способ по п. 1, где указанный раствор формальдегида содержит метанол при молярном отношении метанола к формальдегиду 0,3-1,5: 1. 2. The method according to p. 1, where the specified formaldehyde solution contains methanol with a molar ratio of methanol to formaldehyde of 0.3-1.5: 1. 3. Способ по п. 2, где раствор формальдегида предварительно смешивают с некоторым количеством метанола перед процессом перегонки так, что молярное отношение метанола к формальдегиду находится в пределах 0,3-1,5: 1. 3. The method according to p. 2, where the formaldehyde solution is pre-mixed with a certain amount of methanol before the distillation process so that the molar ratio of methanol to formaldehyde is in the range of 0.3-1.5: 1. 4. Способ по любому из предшествующих пунктов, где захватывающее воду соединение содержит насыщенную или ненасыщенную карбоновую кислоту или сложный эфир или карбонильное соединение. 4. The method according to any one of the preceding paragraphs, where the water-capturing compound contains a saturated or unsaturated carboxylic acid or ester or carbonyl compound. 5. Способ по п. 4, где захватывающее воду соединение содержит метилпропионат или метилметакрилат. 5. The method of claim 4, wherein the water-capturing compound comprises methyl propionate or methyl methacrylate. 6. Способ по любому из предшествующих пунктов, где отношение захватывающего воду соединения к формальдегиду в основании колонны находится в пределах 5: 1-20: 1 по массе. 6. The method according to any one of the preceding paragraphs, where the ratio of the water-capturing compound to formaldehyde at the base of the column is in the range of 5: 1-20: 1 by weight. 7. Способ по любому из предшествующих пунктов, где жидкий побочный поток, содержащий большую часть воды, содержавшейся в указанном растворе формальдегида, отводят из процесса перегонки. 7. The method according to any one of the preceding paragraphs, where the liquid side stream containing most of the water contained in the specified formaldehyde solution is withdrawn from the distillation process. 8. Способ по любому из предшествующих пунктов, где указанный способ объединяют с дополнительным процессом, так что содержащий формальдегид продукт подают непосредственно а указанный дополнительный процесс. 8. The method according to any one of the preceding paragraphs, where the specified method is combined with an additional process, so that the product containing formaldehyde is fed directly to the specified additional process. 9. Способ по п. 8, где указанный дополнительный процесс является процессом получения метилметакрилата. 9. The method of claim 8, wherein said additional process is a process for producing methyl methacrylate. 10. Способ получения метилметакрилата путем реакции формальдегида с метилпропионатом в присутствии метанола и подходящего катализатора, где указанный формальдегид содержит содержащий формальдегид продукт, полученный из раствора формальдегида, посредством перегонки указанного раствора формальдегида в присутствии метилпропионата. 10. A method for producing methyl methacrylate by reacting formaldehyde with methyl propionate in the presence of methanol and a suitable catalyst, wherein said formaldehyde contains a formaldehyde-containing product obtained from a formaldehyde solution by distillation of said formaldehyde solution in the presence of methyl propionate. 11. Содержащий формальдегид продукт, полученный из исходного водного раствора формальдегида, который имеет более высокую концентрацию воды, чем указанный содержащий формальдегид продукт, путем перегонки указанного водного раствора формальдегида с захватывающим воду соединением. 11. Formaldehyde-containing product obtained from a starting aqueous formaldehyde solution that has a higher water concentration than said formaldehyde-containing product by distillation of said aqueous formaldehyde solution with a water-capturing compound. 12. Содержащий формальдегид продукт по п. 11, где захватывающее воду соединение содержит насыщенную или ненасыщенную карбоновую кислоту или сложный эфир или карбонильное соединение. 12. The formaldehyde-containing product of claim 11, wherein the water-capturing compound contains a saturated or unsaturated carboxylic acid or an ester or carbonyl compound. 13. Содержащий формальдегид продукт по п. 12, где захватывающее воду соединение содержит метилпропионат или метилметакрилат. 13. The formaldehyde-containing product of claim 12, wherein the water-capturing compound contains methyl propionate or methyl methacrylate.
RU2001101477/04A 1998-06-05 1999-06-01 Dehydration process RU2232744C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9812083.5 1998-06-05
GBGB9812083.5A GB9812083D0 (en) 1998-06-05 1998-06-05 Removal of water

Related Child Applications (1)

Application Number Title Priority Date Filing Date
RU2004103423/04A Division RU2338737C2 (en) 1998-06-05 1999-06-01 Method of obtaining formaldehyde raw material with low water content

Publications (2)

Publication Number Publication Date
RU2001101477A true RU2001101477A (en) 2003-01-20
RU2232744C2 RU2232744C2 (en) 2004-07-20

Family

ID=10833241

Family Applications (2)

Application Number Title Priority Date Filing Date
RU2001101477/04A RU2232744C2 (en) 1998-06-05 1999-06-01 Dehydration process
RU2004103423/04A RU2338737C2 (en) 1998-06-05 1999-06-01 Method of obtaining formaldehyde raw material with low water content

Family Applications After (1)

Application Number Title Priority Date Filing Date
RU2004103423/04A RU2338737C2 (en) 1998-06-05 1999-06-01 Method of obtaining formaldehyde raw material with low water content

Country Status (19)

Country Link
US (2) US6478929B1 (en)
EP (1) EP1084095B1 (en)
JP (3) JP2002517477A (en)
KR (1) KR100407510B1 (en)
CN (2) CN1291964C (en)
AU (1) AU762099B2 (en)
BR (1) BR9910957B1 (en)
CA (1) CA2332042C (en)
CZ (1) CZ295063B6 (en)
DE (1) DE69912949T2 (en)
ES (1) ES2211193T3 (en)
GB (1) GB9812083D0 (en)
HU (1) HU227631B1 (en)
MY (1) MY129116A (en)
NZ (1) NZ508175A (en)
PL (1) PL195079B1 (en)
RU (2) RU2232744C2 (en)
TW (1) TW565550B (en)
WO (1) WO1999064387A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925870A1 (en) * 1999-06-07 2000-12-14 Basf Ag Process for converting a solution containing a mixture
JP2009503186A (en) * 2005-07-28 2009-01-29 イネオス ユーエスエイ リミテッド ライアビリティ カンパニー Recovery of CO-rich products from heavy hydrocarbon-containing gas mixtures
AU2009239430B2 (en) 2008-04-21 2015-01-22 Signum Biosciences, Inc. Compounds, compositions and methods for making the same
EP2331490A4 (en) * 2008-08-20 2012-09-26 Futurefuel Chemical Co Preparation of dibutoxymethane
US9249081B2 (en) * 2011-12-16 2016-02-02 Celanese International Corporation Processes for the production of acrylic acids and acrylates
JP2015506908A (en) * 2012-02-17 2015-03-05 ルーサイト インターナショナル ユーケー リミテッド Method for dehydrating a water-containing source of formaldehyde and producing ethylenically unsaturated carboxylic esters
WO2013121594A1 (en) 2012-02-17 2013-08-22 Mitsubishi Rayon Co., Ltd. Dehydration of water containing source of formaldehyde, and a method for producing an ethylenically unsaturated carboxylic ester
US8920668B2 (en) * 2012-03-16 2014-12-30 Meggitt Safety Systems Inc. Fire suppressing materials and systems and methods of use
US9034202B2 (en) * 2012-03-16 2015-05-19 Meggitt Safety Systems Inc. Fire suppressing materials and systems and methods of use
US9713732B2 (en) 2012-03-16 2017-07-25 Meggitt Safety Systems, Inc. Fire suppressing materials and systems and methods of use
CN104147800B (en) * 2014-08-27 2017-01-18 江苏凯茂石化科技有限公司 Two-stage methanol evaporation column and methanol evaporation technology method
GB201617534D0 (en) * 2016-10-14 2016-11-30 Lucite International Uk Limited A process for the production of Ethylenically unsaturated carboxylic acid esters and a catalyst therefor
GB201621985D0 (en) 2016-12-22 2017-02-08 Johnson Matthey Davy Technologies Ltd Process
CN107337600A (en) * 2017-07-04 2017-11-10 湖北三里枫香科技有限公司 A kind of method and process unit of methanol and methyl acetate production methyl methacrylate
CN109133232A (en) * 2018-09-27 2019-01-04 南通天泽化工有限公司 A kind of recovery system and its recovery method of highly concentrated formaldehyde solution
CN113509921B (en) * 2021-07-16 2023-03-17 中国科学院兰州化学物理研究所 Bifunctional catalyst system and application thereof
CN113943205A (en) * 2021-09-26 2022-01-18 西南化工研究设计院有限公司 Method for dehydrating and concentrating formaldehyde solution
CN115819231A (en) * 2021-10-31 2023-03-21 浙江新和成股份有限公司 Method and device for preparing methyl methacrylate

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174912A (en) 1965-03-23 Purification of formaldehyde
BE560841A (en) 1953-07-16
GB1107234A (en) 1965-10-22 1968-03-27 Air Reduction Production of acrylate and methacrylate esters
US3535371A (en) 1965-12-29 1970-10-20 Commercial Solvents Corp Process for the preparation of acrylic esters
NL6814946A (en) 1968-10-18 1970-04-21 Recovery of formaldehyde from aqueous formaldehyde - streams
DE1928633C3 (en) 1969-06-06 1978-03-23 Basf Ag, 6700 Ludwigshafen Process for the preparation of low-water solutions of formaldehyde
US3629997A (en) * 1970-05-08 1971-12-28 Borden Inc Process for producing methanol-formaldehyde solution of low-water content
IT1010299B (en) * 1973-05-11 1977-01-10 Basf Ag PROCESS FOR THE PREPARATION OF FORMALDEHYDE
US4040913A (en) 1975-09-02 1977-08-09 Rohm And Haas Company Recovery of methacrylic acid from the effluent obtained from the condensation of formaldehyde and propionic acid
FR2409975A1 (en) 1977-11-29 1979-06-22 Sterlitamaxky O Promyshlenny PROCESS FOR ISOLATING FORMALDEHYDE FROM ITS AQUEOUS SOLUTIONS
DE3004467A1 (en) 1980-02-07 1981-08-13 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING METHYL METHACRYLATE BY REALIZING METHYL PROPIONATE AND METHANOL
US4348540A (en) * 1981-06-29 1982-09-07 Monsanto Company Manufacture of aqueous formaldehyde
US4942258A (en) 1984-06-25 1990-07-17 Amoco Corporation Process for preparation of methacrylic acid with regeneration of catalyst
JPS6115858A (en) 1984-06-25 1986-01-23 アモコ・コーポレーシヨン Regeneration of methacrylic acid catalyst
DE3446528A1 (en) * 1984-12-20 1986-06-26 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING GLYOXYL ACID HEMI ACETAL ESTERS
JPS632951A (en) * 1986-06-23 1988-01-07 Mitsubishi Gas Chem Co Inc Production of methyl methacrylate
JPH078812B2 (en) 1986-09-24 1995-02-01 住友化学工業株式会社 Formaldehyde manufacturing method
US4962235A (en) 1988-04-07 1990-10-09 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing high purity formaldehyde

Similar Documents

Publication Publication Date Title
RU2001101477A (en) DEHYDRATION METHOD
RU2004103423A (en) METHOD FOR PRODUCING FORMALDEHYDE RAW MATERIAL WITH LOW WATER CONTENT
BR0014732A (en) Production method of ethyl acetate and equipment to carry out this method
KR960000841A (en) Process for producing high purity acetic acid
TW339330B (en) Process for producing acetic acid
KR970042465A (en) Production method of acrylic acid
CA2097478A1 (en) Process for the production of acetic acid
JP2002517477A5 (en)
JPS60184046A (en) Manufacture of alkylmethacrylate
FR2496643B1 (en) LIQUID PHASE CARBONYLATION PROCESS AND CATALYST FOR PRODUCING CARBOXYLIC ACID FROM AN ALCOHOL
KR850001720A (en) Method of producing acrylic acid
KR950703505A (en) PROCESS FOR PRODUCING ACETIC ANHYDRIDE ALONE OR BOTH OF ACETIC ANHYDRIDE AND ACETIC ACID
US5585514A (en) Process for the manufacture of biacetyl-free methyl methacrylate
KR900017987A (en) Method for producing acrylic ester
JPS5452027A (en) Separation of methacrolein and methacrylic acid
Chamberlin et al. Stereoselective methylation of β-hydroxylactone dianions
ATE253542T1 (en) CONTINUOUS PROCESS FOR PRODUCING ACETALS
RU2000103219A (en) PROCESSING FORMALDEHYDE-CONTAINING MIXTURES
US5637761A (en) Process for the continuous preparation of esters of lower aliphatic carboxylic acids with lower alcohols
US6583310B1 (en) Direct esterification of ammonium salts of carboxylic acids
KR930007888A (en) Process for preparing lower alkyl 2-keto-L-gulonate
FR2506761B1 (en) CATALYTIC PROCESS FOR PRODUCING A CARBOXYLIC ACID ESTER BY CARBONYLATION OF AN OLEFIN IN THE PRESENCE OF AN ALCOHOL
RU2001108887A (en) METHOD FOR PRODUCING ISOPRENE
RU2165407C2 (en) Method of preparing free alpha-hydroxy acids from ammonium slats thereof (variants)
US7026504B2 (en) Process for preparing alkyladamantyl esters and compositions