-
公开(公告)号：WO2007037968A2
公开(公告)日：2007-04-05
申请号：PCT/US2006/035364
申请日：2006-09-13
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： PARKER, Kenny, Randolph , LIN, Robert , ISAAC, Raymond , HALL, Duane, Alan
CPC classification number: C08G63/89 , B01D61/18 , B01D61/20 , B01J8/006 , B01J8/007 , B01J8/22 , B01J8/228 , B01J2208/00539 , B01J2208/00672 , B01J2208/00761 , B01J2208/00778 , B01J2219/00162 , B01J2219/00252
Abstract: A process and apparatus which reduces the fines in a liquid discharge stream and/or increases the dryness of a solids discharge stream while under a pressure equal to or greater than the vapor pressure of the liquid. There is provided a process for separating particles such as polyethylene terephthalate or polyethylene naphthalate from a liquid in a slurry comprising: a. feeding a slurry comprising solid particles and a liquid into a within a separation zone maintained at a pressure equal to or greater than the vapor pressure of the liquid; b. contacting the slurry in the separation zone with a porous filter, optionally a microfilter, nanofilter, reverse osmosis filter, or ultrafilter, and separating liquid from the particles, wherein the liquid flows through the filter into an outer annulus defined as a space between the wall of the separation device and the filter, and said porous filter optionally having a terminal point beyond which the separated liquid does not pass from the outer annulus back through the filter; c. accumulating no liquid in the outer annulus or accumulating liquid in the outer annulus at a level below or in front of the terminal point, and continuously discharging the separated liquid from the outer annulus through a liquid outlet; d. decoupling the particles from the separation zone through the solids outlet to a low pressure below the vapor pressure of the liquid at the liquid temperature within the separation zone while maintaining a pressure on the particles prior to decoupling at or above the vapor pressure of the liquid within the separation zone.
Abstract translation: 一种在液体排出流中减少细粉和/或在等于或大于液体的蒸气压的压力下增加固体排出流的干度的方法和装置。 提供了一种用于从浆液中的液体分离颗粒如聚对苯二甲酸乙二醇酯或聚萘二甲酸乙二醇酯的方法，包括：a。 将包含固体颗粒和液体的浆料进料到保持在等于或大于液体蒸气压的压力的分离区内; 湾 使分离区中的浆料与多孔过滤器，任选的微过滤器，纳米过滤器，反渗透过滤器或超滤器接触，并将液体从颗粒中分离，其中液体流过过滤器，形成外壁，其被定义为壁之间的空间 分离装置和过滤器，并且所述多孔过滤器任选地具有终点，超过该终点，分离的液体不从外环通过过滤器; C。 在外环形空间中没有液体或在外环空中积聚液体在终点下方或前方的水平，并且通过液体出口连续排出来自外环的分离的液体; 天。 在分离区内的液体温度下将来自分离区的颗粒通过固体出口分离成低于液体蒸气压的低压，同时在等于或高于液体的蒸汽压力的去耦之前保持颗粒上的压力， 分离区。
-
公开(公告)号：WO2006028752A2
公开(公告)日：2006-03-16
申请号：PCT/US2005/030546
申请日：2005-08-29
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： WONDERS, Alan, George , LIN, Robert , DE VREEDE, Marcel , PARTIN, Lee, Reynolds , STRASSER, Wayne, Scott
IPC: C07B33/00 , C07C51/21 , C07C51/235
CPC classification number: B01J8/1872 , B01J8/1836 , B01J8/22 , B01J19/006 , B01J2208/0015 , C07C51/21 , C07C51/235 , C07C51/265 , C07C63/26
Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
-
3.发明申请A PURIFICATION PROCESS OF CRUDE TEREPHTALIC ACID IN A POST OXIDATION ZONE BY THE ADDITION OF STEAM 审中-公开通过蒸汽添加在后氧化区域中的原始酸的净化过程
公开(公告)号：WO2004103945A1
公开(公告)日：2004-12-02
申请号：PCT/US2004/012076
申请日：2004-04-19
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： LIN, Robert , DE VREEDE, Marcel , SLUIJMERS, Johannes, Wilhelmus , DE BOER, Marti , WOODRUFF, Thomas, Earl
IPC: C07C51/487
CPC classification number: C07C51/487 , C07C63/26
Abstract: The present invention relates to a process for heating a secondary oxidizer with steam. More specifically, the present invention relates to a process for heating a secondary oxidizer with steam in a process for the production of a crystallized product. A process to produce a crystallized product comprises the following steps (a) oxidizing in an primary oxidation zone an aromatic feedstock to produce a crude carboxylic acid slurry; (b) oxidizing said crude carboxylic acid slurry in a post oxidation zone in the presence of steam to form a post oxidation product; (c) purifying said post oxidation product to a decolorized post oxidation product; and (d) crystallizing in a crystallization zone said post oxidation product to form a crystallized product.
Abstract translation: 本发明涉及一种用蒸汽加热次级氧化剂的方法。 更具体地，本发明涉及在生产结晶产物的方法中用蒸汽加热二次氧化剂的方法。 产生结晶产物的方法包括以下步骤：（a）在一级氧化区中氧化芳族原料以产生粗羧酸浆料; （b）在蒸汽存在下在后氧化区氧化所述粗羧酸浆料以形成后氧化产物; （c）将所述后氧化产物纯化成脱色后氧化产物; 和（d）在结晶区中结晶所述后氧化产物以形成结晶产物。
-
公开(公告)号：WO2002098836A1
公开(公告)日：2002-12-12
申请号：PCT/US2002/017498
申请日：2002-06-04
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： LIN, Robert , O'MEADHRA, Ruairi, Seosamh , SHEPPARD, Ronald, Buford
IPC: C07C51/43
CPC classification number: C07C63/26 , C07C51/265 , C07C51/43 , C07C51/487
Abstract: Disclosed is a process for the production of terephthalic acid by a plurality of process steps including the catalyst oxidation of a dialkylbenzene compound, a second oxidation, a hydrogenation of the product of the second oxidation, and crystallization of the hydrogenation terephthalic acid using a plurality of series-connected crystallizers.
Abstract translation: 公开了通过多个工艺步骤生产对苯二甲酸的方法，包括二烷基苯化合物的催化剂氧化，第二次氧化，第二次氧化产物的氢化和氢化对苯二甲酸的结晶，使用多个 串联结晶器。
-
公开(公告)号：WO2007021487A2
公开(公告)日：2007-02-22
申请号：PCT/US2006/029267
申请日：2006-07-27
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： LIN, Robert , GIBSON, Philip, Edward , PARKER, Kenny, Randolph
Abstract: A process is disclosed that relates to the removal of impurities, specifically benzoic acid, from a mother liquor produced in the synthesi of carboxylic acid, typically terephthalic acid.
Abstract translation: 公开了一种方法，涉及从羧酸合成中产生的母液（通常为对苯二甲酸）中去除杂质，特别是苯甲酸。
-
Patent Agency Ranking
公开(公告)号：WO2006028773A2
公开(公告)日：2006-03-16
申请号：PCT/US2005/030661
申请日：2005-08-29
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： LIN, Robert , O'MEADHRA, Ruairi, Seosamh
IPC: C07C51/487
CPC classification number: B01D9/0022 , B01D9/0031 , B01D9/0059 , C07C51/265 , C07C51/487 , C07C63/26
Abstract: Disclosed is an optimized process and apparatus for more efficiently producing and purifying aromatic dicarboxylic acids (e.g., terephthalic acid). The optimized system employs at least one zoned slurry concentrator to enhance purification of the aromatic dicarboxylic acid.
Abstract translation: 公开了一种用于更有效地制备和纯化芳族二羧酸（例如对苯二甲酸）的优化方法和装置。 优化的系统使用至少一个分区浆料浓缩器来增强芳族二羧酸的纯化。
-
7.发明申请PROCESS FOR REMOVAL OF IMPURITIES FROM MOTHER LIQUOR IN THE SYNTHESIS OF CARBOXYLIC ACID USING PRESSURE FILTRATION 审中-公开使用压力过滤合成羧酸的方法从母液中除去污染物
公开(公告)号：WO2006009571A1
公开(公告)日：2006-01-26
申请号：PCT/US2004/038418
申请日：2004-11-16
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： PARKER, Kenny, Randolph , LIN, Robert
IPC: C07C51/42
CPC classification number: C07C51/47 , B01D33/073 , B01D33/60 , B01D33/66 , B01J31/4023 , C07C51/42 , C07C51/48 , Y02P20/52 , Y02P20/584 , C07C63/00 , C07C63/06 , C07C63/26
Abstract: A process is disclosed that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves recovery of a metal catalyst from an oxidizer purge stream through the use of a pressure filter, the combining of water with a mother liquor to recover the metal catalyst and then subjecting an aqueous mixture so formed to a single stage extraction with an extraction solvent to produce an extract stream comprising organic impurities and a raffinate stream comprising the metal catalyst.
Abstract translation: 公开了一种涉及从合成羧酸（通常为对苯二甲酸）中产生的氧化剂清除流回收金属催化剂的方法。 更具体地说，该方法包括通过使用压滤器从氧化剂吹扫流中回收金属催化剂，将水与母液混合以回收金属催化剂，然后将如此形成的含水混合物进行单段萃取 与提取溶剂一起产生包含有机杂质的萃取物流和包含金属催化剂的萃余液流。
-
8.发明申请
公开(公告)号：WO2005070525A3
公开(公告)日：2005-08-04
申请号：PCT/US2005/000697
申请日：2005-01-10
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： PARKER, Kenny, Randolph , LIN, Robert , GIBSON, Philip, Edward
IPC: C07C51/43
Abstract: The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a slurry or cake carboxylic acid product without isolation of a substantially dry carboxylic acid solid. More specifically, the present invention relates to a process by which a terephthalic acid/ethylene glycol mixture suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product without isolation of a substantially dry terephthalic acid solid.
-
公开(公告)号：WO2004052821A1
公开(公告)日：2004-06-24
申请号：PCT/US2003/038306
申请日：2003-12-03
Applicant: EASTMAN CHEMICAL COMPANY
IPC: C07C51/47
CPC classification number: C07C51/43 , C07C51/487 , C07C63/26
Abstract: Disclosed is a process to produce a purified carboxylic acid slurry. The process comprises removing impurities from a crystallized product in a solid liquid displacement zone to form the purified carboxylic acid slurry. The process produces purified carboxylic acid slurry having good color and low impurity levels without the use of purification steps like hydrogenation or an impurity removal process.
Abstract translation: 公开了一种生产纯化的羧酸浆料的方法。 该方法包括从固体液体置换区中的结晶产物中除去杂质以形成纯化的羧酸浆液。 该方法产生具有良好颜色和低杂质水平的纯化羧酸浆料，而不使用纯化步骤如氢化或杂质去除方法。
-
10.发明申请TITANIUM NITRIDE PARTICLES, METHODS OF MAKING THEM, AND THEIR USE IN POLYESTER COMPOSITIONS 审中-公开硝酸钛颗粒，其制备方法及其在聚酯组合物中的用途
公开(公告)号：WO2007130286A1
公开(公告)日：2007-11-15
申请号：PCT/US2007/009914
申请日：2007-04-24
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： XIA, Zhiyong , LIN, Robert
Abstract: Polyester compositions are disclosed that include polyester polymers or copolymers having incorporated therein titanium nitride particles that improve the reheat properties of the compositions. Processes for making such compositions are also disclosed. The titanium nitride particles are made from titanium oxide particles by heating the titanium oxide particles in a nitrogen -containing gas to a temperature sufficient to convert at least a portion of the titanium oxide particles to titanium nitride particles. The particles are then mixed with a liquid carrier to obtain a slurry of titanium nitride particles, and the slurry is introduced to a polyester polymerization process to obtain a polyester composition having improved reheat.
Abstract translation: 公开了聚酯组合物，其包括其中掺入氮化钛颗粒的聚酯聚合物或共聚物，其改善组合物的再加热性能。 还公开了制备这种组合物的方法。 通过将含氮气体中的氧化钛颗粒加热到足以将至少一部分氧化钛颗粒转化为氮化钛颗粒的温度，由氮化钛颗粒制成氮化钛颗粒。 然后将颗粒与液体载体混合以获得氮化钛颗粒的浆料，并将浆料引入聚酯聚合方法中以获得具有改进的再热的聚酯组合物。
-
-
-
-
-
-
-
-
-
Search Results
68
records
(took 0.027 seconds)
