公开(公告)号：US11987906B2

公开(公告)日：2024-05-21

申请号：US16962498

申请日：2019-01-14

申请人： LENZING AKTIENGESELLSCHAFT

发明人： Christoph Klaus-Nietrost ,  Richard Herchl ,  Christian Weilach

IPC分类号： D01F13/02 ,  B29B17/04 ,  D01F2/08 ,  D01F2/22 ,  D01F13/04

CPC分类号： D01F13/02 ,  B29B17/04 ,  D01F2/08 ,  D01F2/22 ,  D01F13/04

摘要： A method of recycling a mixed textile, wherein the method comprises: i) supplying the mixed textile, wherein the mixed textile comprises cellulosic fibers and synthetic fibers, wherein the synthetic fibers comprise at least one synthetic plastic, ii) at least partially depleting the synthetic plastic from the cellulose, and iii) further processing the depleted mixed textile after depleting.

公开(公告)号：US09090997B2

公开(公告)日：2015-07-28

申请号：US13411775

申请日：2012-03-05

申请人： Wen-Tung Chou ,  Ming-Yi Lai ,  Kun-Shan Huang

发明人： Wen-Tung Chou ,  Ming-Yi Lai ,  Kun-Shan Huang

IPC分类号： D01D5/06 ,  D01F2/00 ,  D01D10/02 ,  D01D7/00 ,  D01F2/02 ,  D01D10/06 ,  D01D5/26 ,  D01F1/07 ,  D06M13/282 ,  D01F13/02

CPC分类号： D01F2/00 ,  D01D5/26 ,  D01D7/00 ,  D01D10/02 ,  D01D10/06 ,  D01F1/07 ,  D01F2/02 ,  D01F11/02 ,  D01F13/02 ,  D06M13/282 ,  D06M13/447 ,  D06M2101/06 ,  D06M2200/30 ,  Y02P70/627

摘要： A fabrication of natural cellulose fiber with flame-retarding capability comprises following steps. Blend pulp and solvent of N-methylmorpholine N-oxide (NMMO) to form slurry. Evaporate extra water content from slurry by a Thin Film Evaporator (TFE) to form dope. By Dry-Jet Wet Spinning, spin and extrude dope for coagulating and regenerating. Water-rinse and dry to form natural cellulose fiber. Soaking roll natural cellulose fiber by flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl). Orderly dry, bake, neutralize, soaping clean, water rinse, baking dry, soaking rolled, alkaline clean, water rinse, dry and oil the natural cellulose fiber to produce natural cellulose fiber of flame retarding capacity. Because of cross-linking reaction for the flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl) with natural cellulose fiber, the flame-retarding capability thereof meet requirements of testing standards in American ASTM D6413-1999 and ASTM D2863-1995. Moreover, the wastes thereof meet the requirements of environment protections without harm.

摘要翻译： 具有阻燃性能的天然纤维素纤维的制造包括以下步骤。 混合纸浆和N-甲基吗啉N-氧化物（NMMO）的溶剂形成浆料。 通过薄膜蒸发器（TFE）从浆料中蒸发额外的水分以形成涂料。 通过干喷射湿纺丝，旋转和挤出胶束用于凝结和再生。 水冲洗干燥，形成天然纤维素纤维。 通过N-（羟甲基）-3-（甲氧基磷酰基）的阻燃剂浸泡辊天然纤维素纤维。 有序干燥，烘烤，中和，皂洗清洁，水冲洗，烘干，浸泡滚动，碱性清洁，水冲洗，干燥和油状天然纤维素纤维，生产天然纤维素纤维的阻燃能力。 由于N-（羟甲基）-3-（甲氧基磷酰基）与天然纤维素纤维的阻燃剂的交联反应，其阻燃性能符合美国ASTM D6413-1999和ASTM D2863- 1995年。 此外，其废物符合环保要求，无损害。

公开(公告)号：US5773655A

公开(公告)日：1998-06-30

申请号：US817818

申请日：1997-04-15

申请人： Eduard Mulleder ,  Bruno Mangeng ,  Franz Schwenninger ,  Johann Manner

发明人： Eduard Mulleder ,  Bruno Mangeng ,  Franz Schwenninger ,  Johann Manner

IPC分类号： B01D21/01 ,  C07D295/28 ,  D01D5/06 ,  D01F2/00 ,  D01F13/02 ,  C07C291/04

CPC分类号： C07D295/28 ,  D01F13/02 ,  D01F2/00 ,  Y02P70/627

摘要： The invention is concerned with a process for the purification of an aqueous solution of a tertiary amine-oxide containing impurities partially present in a dissolved and partially in a non-dissolved, colloidal state, and is characterized by a combination of the steps of (A) removing from the aqueous solution substantially all of said impurities present in a non-dissolved, colloidal state and (B) contacting said aqueous solution obtained in step (A) with an ion exchanger.

摘要翻译： PCT No.PCT / AT96 / 00148 Sec。 371日期1997年04月15日 102（e）1997年4月15日PCT PCT 1996年8月16日PCT公布。 公开号WO97 / 07268 日期：1997年2月27日本发明涉及一种纯化含有杂质的叔胺氧化物水溶液的方法，该杂质以溶解的和部分溶解的胶体状态部分存在，其特征在于： （A）从水溶液中去除基本上所有的杂质，以不溶解的胶体状态存在，（B）将所述步骤（A）中得到的所述水溶液与离子交换剂接触。

公开(公告)号：US5178764A

公开(公告)日：1993-01-12

申请号：US797126

申请日：1991-11-22

申请人： Stefan Astegger ,  Heinrich Firgo ,  Bernd Wolschner ,  Johann Manner ,  Karin Weinzierl ,  Stefan Zikeli ,  Dieter Eichinger

发明人： Stefan Astegger ,  Heinrich Firgo ,  Bernd Wolschner ,  Johann Manner ,  Karin Weinzierl ,  Stefan Zikeli ,  Dieter Eichinger

IPC分类号： B01D37/02 ,  B01D15/00 ,  C02F1/28 ,  C07D295/22 ,  D01D1/02 ,  D01F2/00 ,  D01F13/02

CPC分类号： D01F13/02 ,  B01D15/00 ,  C02F1/281 ,  C02F1/283 ,  Y02P70/627

摘要： An aqueous N-methylmorpholine-N-oxide solution which was used as a spinning bath in the production of cellulosic products is regenerated by contacting it with active coal, silicon dioxide or alumina adsorbent and filtering, thereby reducing turbidity, eliminating nitrosoamine, decolorizing the solution and removing transition metals like iron therefrom.

摘要翻译： 在制造纤维素产品中用作纺丝浴的N-甲基吗啉-N-氧化物水溶液通过与活性煤，二氧化硅或氧化铝吸附剂接触并进行过滤再生，从而降低浊度，消除亚硝基胺，使溶液脱色 并从其中除去铁等过渡金属。

公开(公告)号：US5053138A

公开(公告)日：1991-10-01

申请号：US595562

申请日：1990-10-11

申请人： Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

发明人： Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

IPC分类号： B01D15/04 ,  B01J41/04 ,  D01F2/02 ,  D01F13/02

CPC分类号： B01J41/043 ,  D01F13/02 ,  Y02P70/627

摘要： There is disclosed a process for purifying aqueous solutions of N-methyl-morpholine N-oxide (NMMO), such as spinning bath solutions incurred in the production of cellulose products, in which process the solutions to be purified are contacted with an anion exchanger and the purified solutions are separated from the anion exchanger. The process is carried out in one step and the anion exchanger, as functional groups, exclusively contains quaternary tetraalkylammonium groups of the formulae--CH.sub.2 --N.sup..sym. (CH.sub.3).sub.3 X.sup..crclbar. or --CH.sub.2 --N.sup..sym. [(CH.sub.3).sub.2 (CH.sub.2 OH)]X.sup..crclbar.wherein X.sup..crclbar. represents the anion of an inorganic or organic acid. After this, the anion exchanger is regenerated with an aqueous acidic solution.

摘要翻译： 公开了一种纯化N-甲基吗啉N-氧化物（NMMO）的水溶液的方法，例如在纤维素产物生产中产生的纺丝浴溶液，其中待纯化的溶液与阴离子交换剂接触， 将纯化的溶液与阴离子交换剂分离。 该方法在一个步骤中进行，阴离子交换剂作为官能团，仅包含式-CH 2 -N（+）（CH 3）3 X（ - ）或-CH 2 -N（+）[（CH 3））的季铵四烷基铵基团 ）2（CH 2 OH）] X（ - ）其中X（ - ）表示无机或有机酸的阴离子。 之后，用酸性水溶液再生阴离子交换剂。

公开(公告)号：US4613416A

公开(公告)日：1986-09-23

申请号：US604330

申请日：1984-04-26

申请人： Heinz Kau ,  Jurgen Russow

发明人： Heinz Kau ,  Jurgen Russow

IPC分类号： C25B1/22 ,  D01F13/02 ,  C25B1/20

CPC分类号： D01F13/02 ,  C25B1/22 ,  Y02P70/627

摘要： A process is described for increasing the sulfuric acid concentration of solutions containing an alkali metal sulfate, sulfuric acid and alkaline earth metal ions. The solutions to be worked up are introduced into the anode compartment of an electrolysis cell. The anode compartment and the cathode compartment of the cell are each bounded by a cation exchange membrane. A center chamber is located between the two membranes. This center chamber is filled with an aqueous solution containing alkali metal ions. The concentration of alkaline earth metal ions in the solution in the center chamber must be kept below 5 mg/l during the electrolysis.

摘要翻译： 描述了用于提高含有碱金属硫酸盐，硫酸和碱土金属离子的溶液的硫酸浓度的方法。 将待处理的溶液引入电解池的阳极室中。 电池的阳极室和阴极室各自用阳离子交换膜界定。 中间室位于两个膜之间。 该中心室填充有含有碱金属离子的水溶液。 在电解过程中，中心室溶液中碱土金属离子的浓度必须保持在5mg / l以下。

公开(公告)号：US4504373A

公开(公告)日：1985-03-12

申请号：US487651

申请日：1983-05-02

申请人： Krishnamurthy N. Mani ,  Frederick P. Chlanda

发明人： Krishnamurthy N. Mani ,  Frederick P. Chlanda

IPC分类号： B01D61/44 ,  C25B1/14 ,  C25B1/16 ,  C25B1/22 ,  D01F13/02 ,  B01D13/02

CPC分类号： C25B1/14 ,  B01D61/445 ,  C25B1/16 ,  C25B1/22 ,  D01F13/02 ,  Y02P70/627

摘要： A process and apparatus for converting alkali metal sulfate values, such as sodium or potassium sulfate values in spent rayon spin bath liquors, into alkali metal hydroxide and alkali metal sulfate/sulfuric acid by using two- or three-compartment electrodialytic water splitter cells. The process and apparatus incorporate the features of: (a) feeding a liquid comprising water to the base compartment of an electrodialytic water splitter, (b) feeding a liquid comprising alkali metal sulfate values to the remaining compartments of the electrodialytic water splitter (c) passing current through said electrodialytic water splitter to produce liquid comprising alkali metal sulfate and sulfuric acid in one of the remaining compartments and a liquid comprising alkali metal hydroxide in said base compartment. The liquid fed to the acid compartments of two- and three-compartment cells may contain H.sub.2 SO.sub.4. When more than about 5 weight percent H.sub.2 SO.sub.4 is present in the alkali metal sulfate solution use of a three-compartment water splitter is preferred. Improved results are obtained when the compartments of the two- and three-compartment water splitter are maintained at a temperature of at least 40.degree. C.

摘要翻译： 通过使用二室或三室电渗析水分离器电池，将碱性金属硫酸盐值如废人造丝旋转浴液中的硫酸钠或硫酸钾值转化为碱金属氢氧化物和碱金属硫酸盐/硫酸的方法和装置。 该方法和装置包括以下特征：（a）将包含水的液体供给电渗析水分离器的基室，（b）将含碱金属硫酸盐值的液体供给电渗析分水器（c）的其余隔室， 使电流通过所述电渗析水分离器以产生其余一个隔室中的碱金属硫酸盐和硫酸的液体，以及在所述基室中含有碱金属氢氧化物的液体。 进料到两室和三室细胞的酸室的液体可能含有H2SO4。 当碱金属硫酸盐溶液中存在大于约5重量％的H 2 SO 4时，优选使用三室分水器。 当两室和三室水分离器的隔室保持在至少40℃的温度时，可获得改进的结果。

公开(公告)号：US4477951A

公开(公告)日：1984-10-23

申请号：US969727

申请日：1978-12-15

申请人： Charles J. Geyer, Jr. ,  Ben E. White

发明人： Charles J. Geyer, Jr. ,  Ben E. White

IPC分类号： C08B9/00 ,  D01D5/06 ,  D01D13/00 ,  D01F13/02 ,  D02J1/22 ,  D06F3/00

CPC分类号： C08B9/00 ,  D01D13/00 ,  D01D5/06 ,  D01F13/02 ,  Y02P70/627

摘要： Apparatus for spinning viscose rayon comprising an acid bath having an enclosure arranged for substantially completely trapping and collecting any gases emanating from said bath, a plurality of fiber-forming jets disposed substantially along beneath the surface of said acid bath, means for forcing aqueous xanthated alkali cellulose in liquid form into said jets and through said jets upwardly into said bath, and take-up means located within said enclosure above said bath for taking up the resulting fibers in an upward direction within said enclosure, and thence through an enclosed secondary hot bath for the purpose of stretching the cellulose-xanthate, regenerating it to cellulose, and for trapping and collecting gases and other chemicals.

摘要翻译： 用于纺丝粘胶人造丝的装置包括具有外壳的酸浴，该外壳布置成基本上完全捕获并收集从所述浴发出的任何气体，基本上沿所述酸浴表面设置的多个纤维形成喷嘴，用于强制含水黄原酸碱 液体形式的纤维素进入所述射流并且通过所述射流向上进入所述浴中，以及位于所述浴室上方的所述外壳内的吸收装置，用于在所述外壳内朝上的方向吸收所得纤维，然后通过封闭的次级热浴 用于拉伸纤维素 - 黄原酸盐，将其再生成纤维素，以及捕集和收集气体和其它化学物质。

公开(公告)号：US3362533A

公开(公告)日：1968-01-09

申请号：US37094264

申请日：1964-05-28

申请人： MUELLER HANS

发明人： MULLER HANS

IPC分类号： B01D37/00 ,  B01D37/02 ,  B01D39/04 ,  B01D41/02 ,  B01D41/04 ,  B01J20/22 ,  B01J20/34 ,  D01D1/10 ,  D01F2/08 ,  D01F13/02 ,  D21D5/02

CPC分类号： D01F13/02 ,  B01D37/00 ,  B01D37/02 ,  B01D37/04 ,  B01D39/04 ,  B01D41/02 ,  B01D41/04 ,  B01J20/261 ,  B01J20/3425 ,  B01J20/3466 ,  B01J20/3475 ,  D01D1/106 ,  D21D5/02 ,  Y02P70/627

摘要： Liquid, e.g. synthetic film-spinning material, is introduced at 2 in the figure (not shown), to a vessel where it is mixed with granules of polyvinyl chloride introduced from a dosing device 3. The mixture is pumped (4) to a filter 1 furnished with horizontal filter elements each provided at the top only with metal fabric and covered already with a mixture of P.V.C. granules and viscose. When the pressure difference is excessive, filtration is interrupted and the contents of the filter passed back to the container for the liquid (not shown). The filter cake on the elements is freed from viscose by compressed air introduced at 5 and is then washed with water from pipe 6. Next, the elements are rotated by motor 7 to throw off the cake and suspend it in a little water, the resulting suspension being fed to an agitator 8 where soda lye is introduced from a container 9 and heating is effected by introducing steam. The suspension is agitated and pumped (10) to the inside of a screen 12 rotating partly submerged in water in a conical vessel 11. Here, impurities float off into a funnel 14, while the P.V.C. granules sink through the screen, and are dehydrated in a suction strainer or centrifuge 13 for return to the dosing device 3. Instead of P.V.C. there may be used polyethylene, polypropylene, polyacrylonitrile, metal powder or metal chips.

公开(公告)号：US3305306A

公开(公告)日：1967-02-21

申请号：US27250263

申请日：1963-04-02

申请人： BENCKISER GMBH JOH A

发明人： HANS-GEORG MORAWE ,  HELMUT RUECKERT ,  FERDINAND FURRER

IPC分类号： B01J39/04 ,  D01F13/02

CPC分类号： D01F13/02 ,  B01J39/07 ,  Y02P70/627