专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09297111B1 Methods for the manufacture of cellulose nanocrystals 有权
标题翻译：纤维素纳米晶体的制造方法
公开(公告)号：US09297111B1
公开(公告)日：2016-03-29
申请号：US14208759
申请日：2014-03-13
申请人： Domtar Corporation
发明人： Bruno Marcoccia , Michael Edwards , Marvin Duncan Cooper
IPC分类号： D21C9/00 , C01B17/82 , C08B15/08 , D21C5/00 , C13K1/04 , C01B17/90
CPC分类号： D21C9/004 , C01B17/903 , C08B15/08 , C13K1/04 , D21C5/00 , D21C9/04 , D21H11/18
摘要： Embodiments of the present invention relates generally to methods and systems for the manufacture of cellulose nanocrystals. In one embodiment, a method for manufacturing cellulose nanocrystals comprises reacting lignocellulosic fibers with sulfuric acid in water, introducing a water-insoluble solvent to substantially terminate the reaction, separating a first stream comprising at least 70% of the unreacted sulfuric acid in the water-insoluble solvent from a second stream comprising a plurality of cellulose nanocrystals and the remainder of the unreacted sulfuric acid in water, and separating the cellulose nanocrystals from the second stream.
摘要翻译：本发明的实施方案一般涉及用于制造纤维素纳米晶体的方法和系统。在一个实施方案中，制备纤维素纳米晶体的方法包括使木质纤维素纤维与硫酸在水中反应，引入水不溶性溶剂以基本上终止反应，将含有至少70％的未反应的硫酸的第一物流在水 - 来自包含多个纤维素纳米晶体的第二流的不溶性溶剂和在水中的其余未反应的硫酸，并将纤维素纳米晶体与第二流分离。

2. 发明授权

US4210502A Process for recovery of waste H.sub.2 SO.sub.4 and HCl 失效
标题翻译：回收废H2SO4和HCl的方法
公开(公告)号：US4210502A
公开(公告)日：1980-07-01
申请号：US020403
申请日：1979-03-14
申请人： Morio Watanabe , Sanji Nishimura
发明人： Morio Watanabe , Sanji Nishimura
IPC分类号： C01B7/00 , C01B7/01 , C01B17/90 , C01G49/00 , C01G49/06 , C23G1/36 , C25C1/06 , C25B1/22
CPC分类号： C25C1/06 , C01B17/902 , C01B17/903 , C01B7/01 , C01G49/0009 , C01G49/06 , C23G1/36 , Y10S423/14
摘要： This invention relates to a process for recovery of waste H.sub.2 SO.sub.4 and HCl which are used for pickling metallic materials and articles and contain a large quantities of Fe ions. Furthermore, it offers a process for the recovery of H.sub.2 SO.sub.4 and HCl from waste H.sub.2 SO.sub.4 which contains large amounts of Fe ions after removal of Ti ions by a hydrolysis process in the production of TiO.sub.2 and also for the recovery of high-purity electrolytic iron or iron hydroxide.
摘要翻译：本发明涉及回收用于酸洗金属材料和制品并含有大量Fe离子的废H2SO4和HCl的方法。此外，它提供了一种从废物H2SO4中回收H2SO4和HCl的方法，其中通过在制备TiO 2中的水解过程除去Ti离子之后含有大量的Fe离子，并且还用于回收高纯度电解铁或铁氢氧化物。

3. 发明申请

US20120301389A1 METHOD FOR THE SEPARATION OF A NON-VOLATILE STRONG ACID FROM A SALT THEREOF AND COMPOSITIONS PRODUCED THEREBY 审中-公开
标题翻译：从其盐分离非挥发性强酸的方法及其制备的组合物
公开(公告)号：US20120301389A1
公开(公告)日：2012-11-29
申请号：US13574641
申请日：2011-02-06
申请人： Aharon Eyal , Asher Vitner , Revital Mali , Carmi Raz
发明人： Aharon Eyal , Asher Vitner , Revital Mali , Carmi Raz
IPC分类号： C01B17/90 , C09K3/00
CPC分类号： C01B25/234 , C01B17/903 , C01B21/46
摘要： The present invention provides an organic phase composition comprising (a) a first solvent (S1) characterized by water solubility of less than 10% and by at least one of (a1) having a polarity related component of Hoy's cohesion parameter (delta-P) between 5 and 10 MPa1/2 and (b1) having a Hydrogen bonding related component of Hoy's cohesion parameter (delta-H) between 5 and 20 MPa1/2; (b) a second solvent (S2) characterized by a water solubility of at least 30% and by at least one of (a2) having delta-P greater than 8 MPa1/2 and (b2) having delta-H greater than 12 MPa1/2; (c) water; (d) a non-volatile strong acid; and (e) a salt thereof.
摘要翻译：本发明提供一种有机相组合物，其包含（a）第一溶剂（S1），其特征在于水溶性小于10％，和至少一种具有Hoy的内聚参数（Δ-P）的极性相关成分的（a1） 5〜10MPa1 / 2，（b1）具有5〜20MPa·1/2的Hoy粘结参数（δ-H）的氢键相关成分; （b）第二溶剂（S2），其特征在于水溶解度为至少30％，并且至少一种具有δ-P大于8MPa1 / 2的（a2）和（b2）具有大于12MPa1的Δ-H / 2; （c）水; （d）不挥发性强酸; 和（e）其盐。

4. 发明授权

US4952378A Method for neutralization treatment of sulfuric acid containing iron ions 失效
标题翻译：含铁离子中和处理方法
公开(公告)号：US4952378A
公开(公告)日：1990-08-28
申请号：US212439
申请日：1988-06-28
申请人： Morio Watanabe , Renpei Sei
发明人： Morio Watanabe , Renpei Sei
IPC分类号： C01G49/10 , B01D11/04 , C01B17/90 , C01B17/96 , C01D5/02 , C01G49/00 , C02F1/26 , C02F1/66
CPC分类号： C01G49/0009 , C01B17/903 , C02F1/26 , C02F1/66 , Y10S423/02 , Y10S423/14
摘要： A method for neutralization of sulfuric acid containing Fe ions, comprising adding ions selected from the group consisting of Na ions, K ions, Mg ions, Ca ions and NH.sub.4 ions in the form of a compound containing chlorine to a sulfuric acid solution to be treated in an amount corresponding at least to the chemical equivalent to SO.sub.4.sup.2-, and bringing the resultant solution into contact with an organic solvent containing oxygen or comprising alkylamine for extracting Fe ions from said aqueous solution into the organic phase as chloride complex. Iron chloride can be recovered from the organic phase by distilling or evaporating the organic solvent or by extracting back it into water.
摘要翻译：一种中和含有Fe离子的硫酸的方法，包括将含有氯化合物形式的Na离子，K离子，Mg离子，Ca离子和NH4离子的离子添加到待处理的硫酸溶液中其量至少相当于SO42-的化学当量，并使得到的溶液与含氧或包含烷基胺的有机溶剂接触，以将Fe离子从所述水溶液中提取到作为氯化物络合物的有机相中。通过蒸馏或蒸发有机溶剂或通过将其萃取回水中，可以从有机相中回收氯化铁。

5. 发明授权

US4113588A Process for recovery of waste H.sub.2 SO.sub.4 and HCl 失效
标题翻译：回收废水的方法H {HD 2 {B SO {HD 4 {B和HCl
公开(公告)号：US4113588A
公开(公告)日：1978-09-12
申请号：US773657
申请日：1977-03-02
申请人： Morio Watanabe , Sanji Nishimura
发明人： Morio Watanabe , Sanji Nishimura
IPC分类号： C01B7/00 , C01B7/01 , C01B17/90 , C01G49/00 , C01G49/06 , C23G1/36 , C25C1/06 , C25B1/22
CPC分类号： C25C1/06 , C01B17/902 , C01B17/903 , C01B7/01 , C01G49/0009 , C01G49/06 , C23G1/36 , Y10S423/14
摘要： This invention relates to a process for recovery of waste H.sub.2 SO.sub.4 and HCl which are used for pickling metallic materials and articles and contain a large quantities of Fe ions. Furthermore, it offers a process for the recovery of H.sub.2 SO.sub.4 and HCl from waste H.sub.2 SO.sub.4 which contains large amounts of Fe ions after removal of Ti ions by a hydrolysis process in the production of TiO.sub.2 and also for the recovery of high-purity electrolytic iron or iron hydroxide.
摘要翻译：本发明涉及回收用于酸洗金属材料和制品并含有大量Fe离子的废H2SO4和HCl的方法。此外，它提供了一种从废物H2SO4中回收H2SO4和HCl的方法，其中通过在制备TiO 2中的水解过程除去Ti离子之后含有大量的Fe离子，并且还用于回收高纯度电解铁或铁氢氧化物。

6. 发明授权

US5682593A Extraction of acids and metal salts from aqueous solutions with diethyl dodecylphosphonate 失效
标题翻译：从十二烷基膦酸二乙酯与水溶液中萃取酸和金属盐
公开(公告)号：US5682593A
公开(公告)日：1997-10-28
申请号：US545454
申请日：1995-10-19
申请人： Christoph Holzner , Hans-Dieter Block , Hans-Heinrich Moretto
发明人： Christoph Holzner , Hans-Dieter Block , Hans-Heinrich Moretto
IPC分类号： B01D11/04 , C01B7/01 , C01B7/07 , C01B17/90 , C01B25/18 , C01B25/46 , C01F17/00 , C01G23/00 , C22B3/20 , C22B3/38 , C22B34/12 , C01G43/00
CPC分类号： C01B17/903 , C01B25/461 , C01B7/0737 , C01G23/001 , C22B3/006 , C22B34/1259 , Y02P10/234
摘要： Use of diethyl dodecylphosphonate (DEDP) for the extraction of acids and metal salts from aqueous solutions.
摘要翻译：十二烷基膦酸二乙酯（DEDP）用于从水溶液中萃取酸和金属盐。

7. 发明授权

US3364202A Process for the recovery of free sulfuric acid from ammonium bisulfate 失效
标题翻译：从硫酸氢铵中回收游离硫酸的方法
公开(公告)号：US3364202A
公开(公告)日：1968-01-16
申请号：US44541565
申请日：1965-04-05
申请人： STAMICARBON
发明人： DE ROOIJ ABRAHAM H , JAN ELMENDORP
IPC分类号： C01B17/90
CPC分类号： C01B17/903

8. 发明授权

US3211526A Recovery of sulfuric acid from an aqueous solution containing metal values by extraction with tertiary amines 失效
标题翻译：通过用叔胺萃取从含有金属值的水溶液中回收硫酸
公开(公告)号：US3211526A
公开(公告)日：1965-10-12
申请号：US30039963
申请日：1963-08-06
申请人： CROUSE JR DAVID J
发明人： CROUSE JR DAVID J
IPC分类号： C01B17/90 , C23G1/36
CPC分类号： C23G1/36 , C01B17/903

9. 发明申请

US20040126311A1 Process for removing organic impurities from sulfuric acid with liquid or supercritical carbon dioxide 审中-公开
标题翻译：用液体或超临界二氧化碳从硫酸中除去有机杂质的方法
公开(公告)号：US20040126311A1
公开(公告)日：2004-07-01
申请号：US10335150
申请日：2002-12-31
发明人： Andrew Sanderson , Sharon Dressen
IPC分类号： C01B017/90
CPC分类号： C01B17/905 , C01B17/903 , C01B17/94 , Y02P20/544
摘要： A process for the removal of organic impurities from sulfuric acid utilizing either liquid or super critical carbon dioxide is provided. The process comprises providing a solution of sulfuric acid contaminated with at least one organic compound and subjecting the solution to countercurrent extraction with one of supercritical carbon dioxide and liquid carbon dioxide. Processes for removing organic contaminants from a waste stream generated in the manufacture of trinitrotoluene are also provided.
摘要翻译：提供了利用液体或超临界二氧化碳从硫酸中除去有机杂质的方法。该方法包括提供被至少一种有机化合物污染的硫酸溶液，并使该溶液与超临界二氧化碳和液体二氧化碳之一逆流萃取。还提供了用于从制造三硝基甲苯中产生的废物流中除去有机污染物的方法。

10. 发明授权

US5084180A Method for treating zinc-containing sulfate solution 失效
标题翻译：含硫硫酸盐溶液的处理方法
公开(公告)号：US5084180A
公开(公告)日：1992-01-28
申请号：US603082
申请日：1990-10-25
申请人： Daniel A. D. Boateng
发明人： Daniel A. D. Boateng
IPC分类号： B01D61/24 , B01D61/44 , B01D61/58 , C01B17/90 , C02F1/469 , C02F9/00
CPC分类号： B01D61/243 , B01D61/44 , B01D61/58 , C01B17/902 , C01B17/903 , C22B19/26 , B01D61/422 , Y02P10/234
摘要： There is provided a method for treating zinc-containing sulfate solutions which comprises an acid removal for the recovery of a substantially pure sulfuric acid solution and a solution low in acid and containing the zinc and metal impurities from the sulfate solution. The acid removal is carried out by a membrane process that consists of dialysis, electrodialysis or dialysis integrated with electrodialysis. The dialyzate or diluate is subjected to a dual-circuit, side-by-side, simultaneous solvent extraction of zinc and sulfuric acid. In one circuit sulfuric acid is extracted from the dialyzate or diluate and the raffinate from the zinc extraction with an amine-containing extractant. Acid is stripped from the loaded organic with water or an alkaline substance, and is recovered as sulfuric acid or as a sulfate, preferably as ammonium sulfate. In the other circuit, zinc is extracted from the raffinate from the acid extraction with an organic phosphoric-, phosphinic-, phosphonic- or thiophosphinic acid-containing extractant. The zinc is stripped from the loaded organic with acid, and is recovered as a concentrated zinc sulfate solution. A residual solution substantially containing the impurities is removed from the process. The extraction and stripping may be carried out in one or more stages.
摘要翻译：提供了一种处理含锌硫酸盐溶液的方法，其包括用于回收基本上纯的硫酸溶液的酸去除和酸性低的溶液，并且含有来自硫酸盐溶液的锌和金属杂质。酸的除去是通过透析，电渗析或电透析一体化的膜工艺进行的。透析液或稀释液经受双电路，并排的同时溶剂萃取锌和硫酸。在一个回路中，使用含胺萃取剂从透析液中提取硫酸或从锌萃取中稀释残液和萃余液。用水或碱性物质从负载有机物中除去酸，并以硫酸或硫酸盐的形式回收，优选硫酸铵。在另一回路中，使用有机磷酸，次膦酸，膦酸或含次膦酸的萃取剂从萃取液中提取锌。用酸从负载的有机物中除去锌，并以浓缩的硫酸锌溶液回收锌。从该方法中除去基本上含有杂质的残余溶液。萃取和汽提可以在一个或多个阶段进行。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式