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公开(公告)号：US20170298151A1
公开(公告)日：2017-10-19
申请号：US15474827
申请日：2017-03-30
IPC分类号： C08B37/00 , A61K9/00 , C08L5/00 , C08L3/02 , C08L1/08 , C08L1/02 , C08F16/06 , C08F8/00 , C08B37/14 , C08B37/02 , C08B30/18 , C08L5/02 , A61L31/14 , A61L31/10 , A61L27/58 , A61L27/34 , A61L27/14 , A61L17/14 , A61L17/10 , A61K45/06 , A61K39/395 , A61K39/00 , A61K38/16 , A61K38/02 , A61K9/16 , C08L5/06 , B82Y5/00
CPC分类号： C08B37/0006 , A61K9/00 , A61K9/1652 , A61K38/02 , A61K38/16 , A61K39/00 , A61K39/0011 , A61K39/385 , A61K39/395 , A61K45/06 , A61K47/50 , A61K47/6939 , A61K2039/55555 , A61K2039/55561 , A61L17/10 , A61L17/145 , A61L27/14 , A61L27/34 , A61L27/58 , A61L31/10 , A61L31/148 , B82Y5/00 , C08B30/18 , C08B37/0021 , C08B37/14 , C08F8/00 , C08F8/02 , C08F8/48 , C08F16/06 , C08F216/38 , C08L1/02 , C08L1/08 , C08L3/02 , C08L5/00 , C08L5/02 , C08L5/06 , C08L101/02 , C09D129/14 , C08F216/06 , C08F218/08
摘要： Compositions and methods of making a modified polyhydroxylated polymer comprising a polyhydroxylated polymer having reversibly modified hydroxyl groups, whereby the hydroxyl groups are modified by an acid-catalyzed reaction between a polydroxylated polymer and a reagent such as acetals, aldehydes, vinyl ethers and ketones such that the modified polyhydroxylated polymers become insoluble in water but freely soluble in common organic solvents allowing for the facile preparation of acid-sensitive materials. Materials made from these polymers can be made to degrade in a pH-dependent manner. Both hydrophobic and hydrophilic cargoes were successfully loaded into particles made from the present polymers using single and double emulsion techniques, respectively. Due to its ease of preparation, processability, pH-sensitivity, and biocompatibility, of the present modified polyhydroxylated polymers should find use in numerous drug delivery applications.
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公开(公告)号：US20160355444A1
公开(公告)日：2016-12-08
申请号：US15109064
申请日：2014-12-31
IPC分类号： C05F3/00 , C05D1/00 , C08H7/00 , C02F1/72 , C08B37/00 , D21C11/00 , C02F1/66 , C05F3/06 , C08B15/02
CPC分类号： C05F3/00 , C02F1/66 , C02F1/722 , C02F1/725 , C02F9/00 , C02F11/12 , C02F2103/20 , C02F2209/06 , C05D1/00 , C05F3/06 , C05F9/04 , C05F11/00 , C08B15/02 , C08B37/00 , C08B37/14 , C08H6/00 , C08H8/00 , C08L97/005 , C08L97/02 , D21C11/00 , D21C11/0007 , Y02A40/205 , Y02A40/208 , Y02A40/216 , Y02P20/145
摘要： A process for producing desired compounds from biomass, including treating a lignocellulosic waste stream in some embodiments. The waste stream is conditioned under acidic or basic conditions, and is then treated in a catalytic reaction step using a transition metal catalyst and an oxidant. The transition metal catalyst can be an iron-based nanoparticulate catalyst. In some embodiments, useful compounds such as lignin, crystalline cellulose and various platform chemicals are produced from the waste stream. In some embodiments, the waste stream is lignocellulosic agricultural or forestry waste. In some embodiments, the waste stream is manure. In some embodiments, desirable bioproducts are obtained from lignocellulosic biomasses using an iron-based nanoparticulate-catalyzed reaction conducted at alkaline pH.
摘要翻译： 在一些实施方案中，从生物质产生所需化合物的方法，包括处理木质纤维素废物流。 废物流在酸性或碱性条件下调节，然后在催化反应步骤中使用过渡金属催化剂和氧化剂进行处理。 过渡金属催化剂可以是铁基纳米颗粒催化剂。 在一些实施方案中，从废物流产生有用的化合物，例如木质素，结晶纤维素和各种平台化学品。 在一些实施方案中，废物流是木质纤维素农业或林业废物。 在一些实施方案中，废物流是肥料。 在一些实施方案中，使用在碱性pH下进行的铁基纳米颗粒催化反应从木质纤维素生物质获得所需的生物产物。
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公开(公告)号：US20150184337A1
公开(公告)日：2015-07-02
申请号：US14645178
申请日：2015-03-11
发明人： Rongfu Li , Jay Mehta , Xiaoyan Tu , Prabuddha Bansal , Michael Combs , Denis Fallon , Lawton E. Kizer
IPC分类号： D21C3/00
CPC分类号： D21C3/003 , C08B1/00 , C08B37/0057 , C08B37/14 , C08H8/00 , D21C3/04 , D21C3/20 , D21C5/00 , D21C11/0007 , Y02P20/542
摘要： A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.
摘要翻译： 用于处理纤维素材料的方法包括用提取剂萃取纤维素材料以选择性提取其中的半纤维素，并分离提取的半纤维素以形成包含比含纤维素材料少的半纤维素的纤维素产品。 萃取剂包括离子液体和非溶剂。 纤维素产品保留纤维素纤维的形态。
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4.发明申请C1-C2 Organic Acid Treatment of Lignocellulosic Biomass to Produce Acylated Cellulose Pulp, Hemicellulose, Lignin and Sugars and Fermentation of the Sugars 审中-公开木质纤维素生物质的C1-C2有机酸处理生产酰化纤维素纸浆，半纤维素，木质素和糖和发酵糖公开(公告)号：US20140322763A1
公开(公告)日：2014-10-30
申请号：US14279550
申请日：2014-05-16
发明人： Wuli Bao , Thomas Binder , Charles Abbas , Lucas Loveless
CPC分类号： C12P17/04 , C07D307/08 , C07D307/36 , C07D307/50 , C08B1/003 , C08B3/00 , C08B3/06 , C08B37/14 , C08H6/00 , C08H8/00 , C08L1/12 , C08L5/14 , C08L97/005 , C12P7/06 , C12P7/10 , C12P7/14 , C12P19/00 , C12P19/02 , C12P19/04 , C12P19/14 , C12P2201/00 , C12P2203/00 , C12Y301/00 , C12Y302/01004 , C13K1/02 , C13K13/002 , D21C3/04 , Y02E50/16 , Y02E50/17
摘要： A process for production of C5 and C6 sugar enriched syrups from lignocellulosic biomass and fermentation products therefrom is described. A lignocellulosic biomass is treated with a C1-C2 acid (e.g., acetic acid) with washing thereof with a C1-C2 acid miscible organic solvent, (e.g., ethyl acetate). A soluble hemicellulose and lignin enriched fraction is obtained separately from a cellulose pulp enriched fraction and lignin is removed from the soluble hemicellulose fraction. These fractions contain acylated (e.g., acetylated) cellulose and hemicellulose, which are deacylated by treatment with an alkali and/or with an acetyl esterase enzyme. The deacylated fractions are then digested with suitable cellulolytic and/or hemicellulolytic enzymes, preferably in the presence of non-ionic detergent to yield the C5 and C6 enriched syrups. Also described are method of fermentation of the syrups to make ethanol to at least 7% w/vol by separate hydrolysis and fermentation (SHF) or simultaneous hydrolysis and fermentation (SSF) methods.
摘要翻译： 描述了从木质纤维素生物质和其发酵产物生产C5和C6糖富集糖浆的方法。 用C1-C2酸（例如乙酸）处理木质纤维素生物质，用C1-C2酸可混溶的有机溶剂（例如乙酸乙酯）洗涤。 从富含纤维素纸浆的级分分别获得可溶性半纤维素和木质素富集部分，并从可溶性半纤维素部分中除去木质素。 这些级分含有酰化（例如，乙酰化的）纤维素和半纤维素，其通过用碱和/或与乙酰酯酶进行处理而脱酰基化。 然后用合适的纤维素分解和/或半纤维素分解酶消化脱酰基化部分，优选在非离子型洗涤剂的存在下，产生富C5和C6的糖浆。 还描述了通过单独的水解和发酵（SHF）或同时水解和发酵（SSF）方法使糖浆发酵以使乙醇达到至少7％w / vol的方法。
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公开(公告)号：US20100124771A1
公开(公告)日：2010-05-20
申请号：US12621599
申请日：2009-11-19
IPC分类号： C12P19/04
CPC分类号： C08B37/00 , C08B37/003 , C08B37/0033 , C08B37/14 , C12P7/10 , C12P19/02 , C12P19/14 , C12P2201/00 , Y02E50/16
摘要： A method for the production of a saccharification product is provided, the method comprising: a) providing a cellulosic feedstock comprising lignin; b) contacting, in water, the feedstock of (a) with at least one metal carbonate at time 0 hour under suitable initial reaction conditions to produce a first delignification slurry; c) contacting the first delignification slurry with a nucleophilic base at time (0+n) hour, where n represents a number greater than zero, under suitable secondary reaction conditions to form a second delignification slurry comprising a lignin-containing liquid fraction and a polysaccharide-enriched solid fraction; d) separating the lignin-containing liquid fraction from the polysaccharide-enriched solid fraction; and e) contacting at least a portion of the polysaccharide-enriched solid fraction with an enzyme consortium to produce a saccharification product comprising xylose and glucose monomers wherein the overall yield of xylose and glucose monomers in the saccharification product are individually at least about 50%.
摘要翻译： 提供了一种生产糖化产物的方法，所述方法包括：a）提供包含木质素的纤维素原料; b）在合适的初始反应条件下，在0小时时，在水中将（a）的原料与至少一种金属碳酸盐接触以产生第一脱木素浆料; c）在合适的次级反应条件下，在第（0 + n）时间（0 + n）小时将第一脱木质浆和亲核碱接触，其中n表示大于零的数，以形成包含含木质素的液体部分和多糖的第二脱木素浆料 富含固体成分; d）从含多糖的固体部分中分离含木质素的液体部分; 和e）使富含多糖的固体部分的至少一部分与酶联合体接触以产生包含木糖和葡萄糖单体的糖化产物，其中糖化产物中木糖和葡萄糖单体的总产率分别为至少约50％。
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公开(公告)号：US20180155615A1
公开(公告)日：2018-06-07
申请号：US15735178
申请日：2016-06-13
申请人： Univar USA Inc.
发明人： Abdelaziz Rahy , DeWitt Knox , Mohand Melbouci , Christopher Alameddin , Joel F. Siegel , Benjamin J. Poppel , Leendert Weijers , Ronald Gusek
CPC分类号： C09K8/90 , C08B37/14 , C08L5/00 , C08L33/26 , C09K8/80 , C09K8/882 , C09K8/887 , C09K8/92 , C09K2208/28 , E21B43/00 , E21B43/267 , C08L93/00 , C08L33/06
摘要： A dry composition of dry polyacrylamide and dry guar; or a liquid suspension made from the dry composition for treating subterranean formations and methods for enhancing proppant transport in fracturing fluids using the composition.
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公开(公告)号：US09644039B2
公开(公告)日：2017-05-09
申请号：US12987679
申请日：2011-01-10
IPC分类号： A61F2/00 , C08B37/00 , A61K9/16 , A61L17/10 , A61L17/14 , A61L27/14 , A61L27/34 , A61L27/58 , A61L31/10 , A61L31/14 , C08B30/18 , C08B37/02 , C08L1/02 , C08L1/08 , C08L3/02 , C08L5/00 , C08L5/02 , C08L5/06
CPC分类号： C08B37/0006 , A61K9/00 , A61K9/1652 , A61K38/02 , A61K38/16 , A61K39/00 , A61K39/0011 , A61K39/385 , A61K39/395 , A61K45/06 , A61K47/48 , A61K47/6939 , A61K2039/55555 , A61K2039/55561 , A61L17/10 , A61L17/145 , A61L27/14 , A61L27/34 , A61L27/58 , A61L31/10 , A61L31/148 , B82Y5/00 , C08B30/18 , C08B37/0021 , C08B37/14 , C08F8/00 , C08F8/28 , C08F16/06 , C08L1/02 , C08L1/08 , C08L3/02 , C08L5/00 , C08L5/02 , C08L5/06 , C08L101/02 , C09D129/14
摘要： Compositions and methods of making a modified polyhydroxylated polymer comprising a polyhydroxylated polymer having reversibly modified hydroxyl groups, whereby the hydroxyl groups are modified by an acid-catalyzed reaction between a polydroxylated polymer and a reagent such as acetals, aldehydes, vinyl ethers and ketones such that the modified polyhydroxylated polymers become insoluble in water but freely soluble in common organic solvents allowing for the facile preparation of acid-sensitive materials. Materials made from these polymers can be made to degrade in a pH-dependent manner. Both hydrophobic and hydrophilic cargoes were successfully loaded into particles made from the present polymers using single and double emulsion techniques, respectively. Due to its ease of preparation, processability, pH-sensitivity, and biocompatibility, of the present modified polyhydroxylated polymers should find use in numerous drug delivery applications.
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公开(公告)号：US20140227742A1
公开(公告)日：2014-08-14
申请号：US14342634
申请日：2012-09-21
发明人： Wuli Bao , Thomas Binder , Charles Abbas , Lucas Loveless
CPC分类号： C12P17/04 , C07D307/08 , C07D307/36 , C07D307/50 , C08B1/003 , C08B3/00 , C08B3/06 , C08B37/14 , C08H6/00 , C08H8/00 , C08L1/12 , C08L5/14 , C08L97/005 , C12P7/06 , C12P7/10 , C12P7/14 , C12P19/00 , C12P19/02 , C12P19/04 , C12P19/14 , C12P2201/00 , C12P2203/00 , C12Y301/00 , C12Y302/01004 , C13K1/02 , C13K13/002 , D21C3/04 , Y02E50/16 , Y02E50/17
摘要： A process for production of C5 and C6 sugar enriched syrups from lignocellulosic biomass and fermentation products therefrom is described. A lignocellulosic biomass is treated with a C1-C2 acid (e.g., acetic acid) with washing thereof with a C1-C2 acid miscible organic solvent, (e.g., ethyl acetate). A soluble hemicellulose and lignin enriched fraction is obtained separately from a cellulose pulp enriched fraction and lignin is removed from the soluble hemicellulose fraction. These fractions contain acylated (e.g., acetylated) cellulose and hemicellulose, which are deacylated by treatment with an alkali and/or with an acetyl esterase enzyme. The deacylated fractions are then digested with suitable cellulolytic and/or hemicellulolytic enzymes, preferably in the presence of non-ionic detergent to yield the C5 and C6 enriched syrups. Also described are method of fermentation of the syrups to make ethanol to at least 7% w/vol by separate hydrolysis and fermentation (SHF) or simultaneous hydrolysis and fermentation (SSF) methods.
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公开(公告)号：US20140048221A1
公开(公告)日：2014-02-20
申请号：US13827767
申请日：2013-03-14
发明人： Rongfu Li , Jay Mehta , Xiaoyan Tu , Prabuddha Bansal , Michael Combs , Denis Fallon , Lawton E. Kizer
IPC分类号： D21C3/04
CPC分类号： D21C3/003 , C08B1/00 , C08B37/0057 , C08B37/14 , C08H8/00 , D21C3/04 , D21C3/20 , D21C5/00 , D21C11/0007 , Y02P20/542
摘要： A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent comprising acetic acid. The cellulosic product retains the cellulosic fiber morphology.
摘要翻译： 用于处理纤维素材料的方法包括用提取剂萃取纤维素材料以选择性提取其中的半纤维素，并分离提取的半纤维素以形成包含比含纤维素材料少的半纤维素的纤维素产品。 萃取剂包括离子液体和包含乙酸的非溶剂。 纤维素产品保留纤维素纤维的形态。
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公开(公告)号：US20160032021A1
公开(公告)日：2016-02-04
申请号：US14784457
申请日：2014-04-15
申请人： METSÄ FIBRE OY
发明人： Ismo Reilama , Esko Turunen
CPC分类号： D21C9/08 , C08B16/00 , C08B37/0003 , C08B37/0057 , C08B37/14 , C08H8/00 , D01D1/02 , D01F2/02 , D21C3/00 , D21C3/20 , D21C9/00
摘要： A method of producing regenerated cellulose and hemicellulose from a fibre pulp which is prepared by using chemical cooking. Hemicellulose and, correspondingly, cellulose is separated from the pulp, in order to form separate fractions, by dissolving them in such a solvent or an aqueous solution of it, from which they are precipitated by adding water, after which the regenerated hemicellulose and cellulose can be recovered. Hemicellulose-containing pulp, which for example is used as raw material of paper, can be efficiently fractionated into polymeric hemicellulose-rich fractions and very pure cellulose fractions, such as regenerated cellulose fibre, various cellulose particles or cellulose films.
摘要翻译： 由使用化学烹调制备的纤维纸浆生产再生纤维素和半纤维素的方法。 通过将半纤维素和相应的纤维素从纸浆中分离出来，通过将它们溶解在它们的溶剂或其水溶液中形成分离的级分，通过加入水使它们沉淀，之后再生的半纤维素和纤维素可以 被收回。 例如用作纸的原料的含半纤维素的纸浆可以有效地分级成聚合的富含半纤维素的级分和非常纯的纤维素级分，例如再生纤维素纤维，各种纤维素颗粒或纤维素膜。
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