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11. 发明专利

MX2013007647A PURIFICACION DE TORRENTES DE PRODUCTOS DE ACIDO ACETICO. 未知
公开(公告)号：MX2013007647A
公开(公告)日：2013-08-01
申请号：MX2013007647
申请日：2011-12-28
申请人： CELANESE INT CORP
发明人： SHAVER RONALD D , TORRENCE G PAULL , BLANCHARD GREG , HOKKANEN BRIAN W
IPC分类号： C08J5/20 , B01J39/04 , C07C51/47 , C07C51/573
摘要： En una modalidad, la invención tiene que ver con una composición de resina de intercambio iónico que comprende una resina de intercambio funcionalizada con metal de 3% a 94% de sitios activos funcionalizados con metal y una resina de intercambio no funcionalizada con metal que comprende sitios activos no funcionalizados con metal.

12. 发明专利

SG189860A1 PRODUCTION OF ACETIC ACID WITH AN INCREASED PRODUCTION RATE 未知
公开(公告)号：SG189860A1
公开(公告)日：2013-06-28
申请号：SG2013026448
申请日：2011-10-03
申请人： CELANESE INT CORP
发明人： TORRENCE G PAULL , ZINOBILE RAYMOND
摘要： This invention relates to processes for producing acetic acid from carbon monoxide and, in particular, to improved processes, wherein at least one reactant is fed upstream of a reactor recycle pump and/or to a pump-around loop.

13. 发明专利

ES2327401T3 CONTROL DEL PROCESO PARA LA PRODUCCION DE ACIDO ACETICO MEDIANTE EL USO DE LA MEDICION DE LA DENSIDAD DE LA FASE PESADA. 未知
公开(公告)号：ES2327401T3
公开(公告)日：2009-10-29
申请号：ES03701257
申请日：2003-01-09
申请人： CELANESE INT CORP
发明人： HUCKMAN MICHAEL E , TORRENCE G PAULL , CHEUNG HOSEA
IPC分类号： C07C51/12 , C07C53/08 , G01N31/00 , G06F19/00
摘要： Un procedimiento para efectuar el control del proceso en una reacción para la producción de ácido acético a través de la reacción del metanol y del monóxido de carbono en una mezcla de reacción que comprende acetato de metilo, que comprende las etapas de: medir la densidad de la fase pesada de una columna de destilación de la fracción ligera que comprende yoduro de metilo y acetato de metilo con un densitómetro; y controlar las condiciones de la reacción en el reactor en respuesta a la densidad medida.

14. 发明专利

RS50170B RODIJUM/NEORGANSKI JODID KATALITIČKI SISTEM ZA PROCES KARBONIZACIJE METANOLA SA POBOLJŠANIM PROFILOM NEČISTOĆA 未知
公开(公告)号：RS50170B
公开(公告)日：2009-05-06
申请号：YUP11502
申请日：2000-08-07
申请人： CELANESE INT CORP
发明人： SCATES MARK O , SANTILLAN VALERIE , AGRIWAL PRAMOD , TORRENCE G PAULL , WARNER R JAY
IPC分类号： C07C51/12 , C07B61/00 , C07C53/08
摘要： Postupak za proizvodnju sirćetne kiseline reagovanjem metanola sa sirovinom ugljen monoksida u reaktoru za karbonilovanje sa reakcionom sredinom koja sadrži katalitički efikasnu količinu rodijuma, naznačen time, što obuhvata: održavanje u pomenutoj reakcionoj sredini u toku pomenute reakcije makar ograničene koncentracije od 0,1 tež.% do manje od 14 tež.% vode zajedno sa a) soli rastvornom u reakcionoj sredini na temperaturi reakcije u količini kojom se postiže da se održi koncentracija jonskog jodida u opsegu od 2 do 20 tež.% efikasnog kao stabilizatora katalizatora i ko-promotora, b) od 1 do 20 tež.% metil jodida, c) od 0.5 do 30 tež.% metil acetata, d) parcijalni pritisak vodonika između 0.1 psia (0,68 kPa) i 3,5 psia (24,1 kPa) pri uslovima reakcije koji obuhvataju 15 do 40 atmosfera (1,5 do 4,0 Mpa) totalnog reakcionog pritiska, i koncentraciju vodonika u sirovini ugljen monoksida za pomenuti reaktor za karbonilovanje od 0,001 molskih procenata do 0,3 molskih procenata, e) koncentraciju rodijuma bar 500 ppm po težini zasnovano na težini metala rodijuma u reacionoj smeši, i f) sirćetnu kiselinu. Prijava sadrži još 16 patentnih zahteva.

15. 发明专利

CA2381420C RHODIUM/INORGANIC IODIDE CATALYST SYSTEM FOR METHANOL CARBONYLATION PROCESS WITH IMPROVED IMPURITY PROFILE 未知
公开(公告)号：CA2381420C
公开(公告)日：2008-11-18
申请号：CA2381420
申请日：2000-08-07
申请人： CELANESE INT CORP
发明人： TORRENCE G PAULL , SCATES MARK O , WARNER R JAY , AGRAWAL PRAMOD , SANTILLAN VALERIE
IPC分类号： C07C51/12 , C07B61/00 , C07C53/08
摘要： The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities. The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining a partial pressure of hydrogen between about 0.1 and 4 psia at reaction total pressure of from about 15 to about 40 atmospheres total reaction pressure.

16. 发明专利

GC0000346A Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile 未知
公开(公告)号：GC0000346A
公开(公告)日：2007-03-31
申请号：GCP2000883
申请日：2000-08-29
申请人： CELANESE INT CORP
发明人： AGRAWAL PRAMOD , CHEUNG HUNG-CHEUN , FISHER DARRELL A , SANTILLAN VALERIE , SCATES MARK O , SIBREL ELAINE C , TORRENCE G PAULL
IPC分类号： C07B61/00 , C07C51/12 , C07C53/08
摘要： The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities.The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining less than about 4.5 wt % methyl iodide in the reaction medium during the course of the reaction.

17. 发明专利

CA2267887C REMOVAL OF PERMANGANATE REDUCING COMPOUNDS AND ALKYL IODIDESFROM A CARBONYLATION PROCESS STREAM 未知
公开(公告)号：CA2267887C
公开(公告)日：2007-01-09
申请号：CA2267887
申请日：1997-10-17
申请人： CELANESE INT CORP
发明人： TANKE ROBIN S , VOGEL RICHARD F JR , TORRENCE G PAULL , MEILCHEN MELCHIOR A , KARNILAW MICHAEL L , WARNER R JAY , SCATES MARK O , SANTILLAN VALERIE , SINGH MADAN , PICARD WAYNE D , BLAY GEORGE A
IPC分类号： B01J27/32 , C07C51/44 , B01J38/00 , C07C51/00 , C07C51/12 , C07C51/48 , C07C53/08 , C08G2/12 , C08G2/28
摘要： Disclosed is a method to manufacture high purity acetic acid. Although described in relation to that produced by a low water carbonylation process the present invention is applicable to other mechanism s for production of acetic acid which results in formation of permanganate reducing compounds such as acetaldehyde, propionic acid, and alkyl iodide impurities in intermediate process streams. It has been found that permanganate reducing compounds and alkyl iodides may be conveniently removed from a light phase of an intermediate stream in the reaction process by employing a multiple distillation process coupled with an optional extraction of acetaldehyde. The distillation process involves first distilling a light phase to concentrate the permanganate reducing compounds, and in particular the acetaldehyde, and then separating the permanganate reducing compounds and alkyl iodides in a second distillation tower. The second distillation serves to remove the permanganate reducing compounds and alkyl iodides from methyl iodide, methyl acetate, and methanol mixture. As an optional third step, the twice distilled stream may be direct ed to an extractor to remove any remaining quantities of methyl iodide from the aqueous acetaldehyde stream to obtain acetic acid as a final product in greater than 99% purity.

18. 发明专利

ES2227146T3 COMPOSICION CATALITICA PARA PROCEDIMIENTO DE CARBONILACION QUE INCLUYE POLIMEROS DE PIRIDINA E IRIDIO. 未知
公开(公告)号：ES2227146T3
公开(公告)日：2005-04-01
申请号：ES01911163
申请日：2001-02-23
申请人： CELANESE INT CORP
发明人： CHEUNG HUNG-CHEUN , SIBREL ELAINE C , TORRENCE G PAULL
IPC分类号： B01J31/28 , B01J31/16 , B01J31/18 , C07B61/00 , C07C51/12 , C07C53/08
摘要： Un procedimiento para fabricar ácido acético mediante una reacción de carbonilación en presencia de un catalizador homogéneo que comprende iridio, caracterizado por la adición a la composición de reacción de un polímero que contiene el anillo de piridina insoluble en una cantidad en la que la relación en peso de polímero insoluble a iridio es menor de 5.

19. 发明专利

BR0306690A 未知
公开(公告)号：BR0306690A
公开(公告)日：2004-12-07
申请号：BR0306690
申请日：2003-01-09
申请人： CELANESE INT CORP
发明人： HUCKAMN MICHAEL E , TORRENCE G PAULL , CHEUNG HOSEA
IPC分类号： C07C51/12 , C07C53/08 , G01N31/00 , G06F19/00
摘要： A process for monitoring and controlling reactor conditions during the production of acetic acid by the catalyzed carbonylation of methanol is provided. The process of the present invention comprises measuring the density of the heavy phase of the light ends distillation column in the purification system of the carbonylation process. The density measurement is used to adjust the feed of methanol and/or to regulate the temperature in the reaction zone to optimize reactor conditions. The density measurement may also be used to adjust other parameters in the reactor system. The invention is also directed to the system for manufacturing acetic acid based on the process control procedure described.

20. 发明专利

DK0934243T3 未知
公开(公告)号：DK0934243T3
公开(公告)日：2003-12-15
申请号：DK97912748
申请日：1997-10-17
申请人： CELANESE INT CORP
发明人： SINGH MADAN , BLAY GEORGE A , KARNILAW MICHAEL L , MEILCHEN MELCHIOR A , PICARD WAYNE DAVID , SANTILLAN VALERIE , SCATES MARK O , TANKE ROBIN SUZANNE , TORRENCE G PAULL , VOGEL RICHARD F JR , WARNER R JAY
IPC分类号： B01J27/32 , B01J38/00 , C07C51/00 , C07C51/12 , C07C51/44 , C07C51/48 , C07C53/08 , C08G2/12 , C08G2/28
摘要： Disclosed is a method to manufacture high purity acetic acid. Although described in relation to that produced by a low water carbonylation process the present invention is applicable to other mechanisms for production of acetic acid which results in formation of permanganate reducing compounds such as acetaldehyde, propionic acid, and alkyl iodide impurities in intermediate process streams. It has been found that permanganate reducing compounds and alkyl iodides may be conveniently removed from a light phase of an intermediate stream in the reaction process by employing a multiple distillation process coupled with an optional extraction of acetaldehyde. The distillation process involves first distilling a light phase to concentrate the permanganate reducing compounds, and in particular the acetaldehyde, and then separating the permanganate reducing compounds and alkyl iodides in a second distillation tower. The second distillation serves to remove the permanganate reducing compounds and alkyl iodides from methyl iodide, methyl acetate, and methanol mixture. As an optional third step, the twice distilled stream may be directed to an extractor to remove any remaining quantities of methyl iodide from the aqueous acetaldehyde stream to obtain acetic acid as a final product in greater than 99% purity. It has been found that this process removes at least 50% of the permanganate reducing compounds and alkyl iodides and at least 20% of the propionic acid impurity from the intermediate light phase stream, and results in lower alkyl iodide concentration in the carbonylation reaction process, and in particular in the carbonylation reactor. It has also been found that during shut down of the inventive process, polymers of acetaldehyde tend to form in the base of the second distillation tower. To avoid or minimize the formation of these polymers, a constant flow of solvent is passed through the base of the column.

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