中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

196 records (took 0.035 seconds)

    Processes to produce short-cut microfibers
    102.
    发明授权
    Processes to produce short-cut microfibers 有权
    生产短切微纤维的工艺

    公开(公告)号：US09175440B2

    公开(公告)日：2015-11-03

    申请号：US14490084

    申请日：2014-09-18

    Applicant: Eastman Chemical Company

    Inventor： Kenny Randolph Parker ,  Daniel William Klosiewicz ,  Ramesh Chand Munjal ,  David J. Rogers ,  Dustin A. Tremaine

    IPC: B01D12/00 ,  D21H17/58 ,  D21H13/24 ,  B01D11/02 ,  C08G63/688 ,  D21H15/10 ,  D21H21/18

    CPC classification number: D21H17/58 ,  B01D11/0288 ,  B01D12/00 ,  C08G63/6886 ,  D21H13/24 ,  D21H15/10 ,  D21H21/18

    Abstract: A process for producing a microfiber product stream, the process comprises: (A) contacting cut multicomponent fibers having a length of less than 25 millimeters with a treated aqueous stream in a fiber slurry zone to produce a cut multicomponent fiber slurry; (B) contacting the cut multicomponent fiber slurry with a heated aqueous stream in a mix zone to produce a heated multicomponent fiber slurry; (C) routing the heated multicomponent fiber slurry to a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; wherein the opening zone comprises a pipe reactor; and (D) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.

    Abstract translation: 一种制备超细纤维产品流的方法，该方法包括：（A）将长度小于25毫米的切割多组分纤维与纤维浆料区域中的处理过的水流接触以产生切割的多组分纤维浆料; （B）将切割的多组分纤维浆料与混合区中的加热的水流接触以产生加热的多组分纤维浆料; （C）将加热的多组分纤维浆料布置到纤维开口区域以除去一部分水分散性磺基聚酯以产生开放的超细纤维浆料; 其中所述开口区域包括管式反应器; 和（D）将开放的超细纤维浆料布置到初级固体液体分离区域以产生超细纤维产物流和第一母液流。

    Method for producing purified dialkyl-furan-2,5-dicarboxylate by physical separation and solid liquid separation
    103.
    发明授权
    Method for producing purified dialkyl-furan-2,5-dicarboxylate by physical separation and solid liquid separation 有权
    通过物理分离和固液分离生产纯化的二烷基 - 呋喃-2,5-二羧酸二烷基酯的方法

    公开(公告)号：US09169229B2

    公开(公告)日：2015-10-27

    申请号：US14536387

    申请日：2014-11-07

    Applicant: Eastman Chemical Company

    Inventor： Kenny Randolph Parker ,  Ashfaq Shaikh ,  Lee Reynolds Parton ,  Mesfin Ejerssa Janka

    IPC: C07D307/68 ,  C07D307/46

    CPC classification number: C07D307/68 ,  C07D307/46

    Abstract: A process to produce a purified dimethyl-furan-2,5-dicarboxylate (DMFD) by feeding furan dicarboxylic acid and methanol to an esterification zone to generate a crude diester composition, and purifying the crude diester composition with a physical separation process followed by crystallization, solid liquid separation, and optionally drying to produce a purified DMFD composition. A portion of the stream generated by solid liquid separation can be dissolved and subjected to crystallization and solid liquid separation repeatedly. The process is useful to produce a purified DMFD composition having a low b*, at least 98 wt. % DAFD solids, and a low concentration of 5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) and methyl 5-formylfuran-2-carboxylate (MFFC).

    Abstract translation: 通过将呋喃二甲酸和甲醇加入到酯化区以产生粗制二酯组合物，并通过物理分离方法纯化粗二酯组合物，然后结晶，从而生产纯化的二甲基 - 呋喃-2,5-二羧酸二甲酯（DMFD） ，固液分离，任选地干燥以制备纯化的DMFD组合物。 通过固液分离产生的一部分流可以溶解并重复进行结晶和固液分离。 该方法可用于生产具有低b *，至少98重量％的纯化的DMFD组合物。 ％DAFD固体，低浓度的5-（甲氧羰基）呋喃-2-羧酸（MCFC）和5-甲酰呋喃-2-羧酸甲酯（MFFC）。

    PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID BY HYDROGENATION
    104.
    发明申请
    PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID BY HYDROGENATION 审中-公开
    通过氢化法纯化原料呋喃2,5-二羧酸

    公开(公告)号：US20140364633A1

    公开(公告)日：2014-12-11

    申请号：US14309010

    申请日：2014-06-19

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： Mesfin Ejerssa Janka ,  Charles Edwan Sumner, JR. ,  Shane Kipley Kirk ,  Ashfaq Shahanawaz Shaikh ,  Kenny Randolph Parker

    IPC: C07D307/68

    CPC classification number: C07D307/68

    Abstract: A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130° C. to 225° C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi. A product FDCA composition is produced having a low amount of tetrahydrofuran dicarboxylic acid, a low b*, and a low amount of 5-formyl furan-2-carboxylic acid (FFCA).

    Abstract translation: 通过氢化溶解在氢化溶剂如水中的FDCA组合物，并在温和条件下（例如在130℃的温度范围内）氢化来纯化粗呋喃2,5-二羧酸组合物（cFDCA）的方法 通过在10psi至900psi的氢分压下，在氢化催化剂存在下使溶剂化的FDCA组合物与氢气接触。 制备具有少量四氢呋喃二羧酸，低b *和少量5-甲酰基呋喃-2-羧酸（FFCA）的产品FDCA组合物。

    OXIDATION PROCESS TO PRODUCE A CRUDE DRY CARBOXYLIC ACID PRODUCT
    105.
    发明申请
    OXIDATION PROCESS TO PRODUCE A CRUDE DRY CARBOXYLIC ACID PRODUCT 有权
    生产羧酸羧酸产品的氧化方法

    公开(公告)号：US20140256964A1

    公开(公告)日：2014-09-11

    申请号：US14282360

    申请日：2014-05-20

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh ,  Lee Reynolds Partin

    IPC: C07D307/68

    CPC classification number: C07D307/68 ,  C07D307/48

    Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural where R=alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R′OCH2-furfural, where R′=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R″-furfural, where R″=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA, cooling a crude carboxylic acid slurry in cooling zone to form a cooled slurry stream. The cooled slurry stream is routed to a solid-liquid separation zone to generate a crude wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising crude FDCA (cFDCA).

    Abstract translation: 公开了一种生产包含呋喃-2,5-二羧酸（FDCA）的干燥纯化羧酸产物的方法。 该方法包括氧化至少一种选自以下组的可氧化化合物：5-（羟甲基）糠醛（5-HMF），5-HMF酯（5-R（CO）OCH 2 - 糠醛，其中R =烷基，环烷基和芳基） ，5-HMF醚（5-R'OCH 2 - 糠醛，其中R'=烷基，环烷基和芳基），5-烷基糠醛（5-R“ - 糠醛，其中R”=烷基，环烷基和芳基），混合进料 5-HMF和5-HMF酯的原料和5-HMF和5-HMF醚的混合原料和5-HMF和5-烷基糠醛的混合原料以产生包含FDCA的粗制羧酸浆料，冷却 在冷却区中的粗羧酸浆料以形成冷却的浆料流。 将冷却的浆料流送至固液分离区，以产生包含FDCA的粗湿饼流，其在干燥区中干燥以产生包含粗FDCA（cFDCA）的干燥羧酸产物流。

    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION
    106.
    发明申请
    PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION 有权
    使用氢化法纯化原料呋喃2,5-二羧酸的方法

    公开(公告)号：US20130345451A1

    公开(公告)日：2013-12-26

    申请号：US13758070

    申请日：2013-02-04

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： Ashfaq Schahanawaz Shaikh ,  Kenny Randolph Parker ,  Mesfin Ejerssa Janka ,  Lee Reynolds Partin

    IPC: C07D307/68

    CPC classification number: C07D307/68

    Abstract: A process to produce a dry purified furan-2,5-dicarboxylic acid (FDCA) is described. After oxidation of 5-(hydroxymethyl)furfural (5-HMF), a crude FDCA stream is produced that is fed to a crystallization zone followed by a solid-liquid displacement zone to form a low impurity slurry stream. The solids in the low impurity slurry stream are dissolved in a dissolution zone to produce a hydrogenation feed that is hydrogenated in a hydrogenation reactor to generate a hydrogenated FDCA composition. The hydrogenated FDCA composition is routed to a crystallization zone to form a crystallized produce stream that is separated from liquid in a solid-liquid separation zone to generate a purified wet cake stream containing FDCA that can be dried in a drying zone to generate a dry purified FDCA product stream.

    Abstract translation: 描述了制备干净的呋喃-2,5-二羧酸（FDCA）的方法。 在5-（羟甲基）糠醛（5-HMF）氧化之后，产生粗制FDCA流，将其送入结晶区，随后进行固 - 液置换区以形成低杂质浆料流。 将低杂质浆料流中的固体溶解在溶解区中以产生在氢化反应器中氢化以产生氢化FDCA组合物的氢化进料。 将氢化的FDCA组合物送至结晶区以形成在固液分离区中与液体分离的结晶产物流，以产生含有FDCA的纯化湿饼流，其可以在干燥区中干燥以产生干净的 FDCA产品流。

    PROCESSES TO PRODUCE SHORT CUT MICROFIBERS
    107.
    发明申请
    PROCESSES TO PRODUCE SHORT CUT MICROFIBERS 有权
    生产短切割微生物的方法

    公开(公告)号：US20130192780A1

    公开(公告)日：2013-08-01

    申请号：US13687493

    申请日：2012-11-28

    Applicant: Eastman Chemical Company

    Inventor： Kenny Randolph Parker ,  Daniel William Klosiewicz ,  Ramesh Chand Munjal ,  David J. Rogers, JR. ,  Dustin A. Tremaine

    IPC: D21H13/24

    CPC classification number: D21H17/58 ,  B01D11/0288 ,  B01D12/00 ,  C08G63/6886 ,  D21H13/24 ,  D21H15/10 ,  D21H21/18

    Abstract: A process for producing a microfiber product stream, the process comprising: (A) contacting cut multicomponent fibers having a length of less than 25 millimeters with a treated aqueous stream in a fiber slurry zone to produce a cut multicomponent fiber slurry; (B) contacting the cut multicomponent fiber slurry with a heated aqueous stream in a mix zone to produce a heated multicomponent fiber slurry; (C) routing the heated multicomponent fiber slurry to a fiber opening zone to remove a portion of the water dispersible sulfopolyester to produce an opened microfiber slurry; and (D) routing the opened microfiber slurry to a primary solid liquid separation zone to produce the microfiber product stream and a first mother liquor stream.

    Abstract translation: 一种制备超细纤维产品流的方法，该方法包括：（A）将长度小于25毫米的切割多组分纤维与纤维浆料区域中的处理过的水流接触以产生切割的多组分纤维浆料; （B）将切割的多组分纤维浆料与混合区中的加热的水流接触以产生加热的多组分纤维浆料; （C）将加热的多组分纤维浆料布置到纤维开口区域以除去一部分水分散性磺基聚酯以产生开放的超细纤维浆料; 和（D）将开放的超细纤维浆料布置到初级固体液体分离区域以产生超细纤维产物流和第一母液流。

Patent Agency Ranking