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1. 发明公开

US20240226841A9 Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials 审中-公开
公开(公告)号：US20240226841A9
公开(公告)日：2024-07-11
申请号：US17769388
申请日：2016-06-13
申请人： Circ, LLC
发明人： Sandeep Kumar , Peter Majeranowski , Igor Kostenyuk , Iulian Bobe , Florin Barla
IPC分类号： B01J19/00 , B01D11/02 , C10G1/04 , C10G1/06 , C12M1/00 , C12P7/10 , C12P7/649 , D21B1/14 , D21C1/02 , D21C3/02 , D21C3/22 , D21C5/02 , D21C7/00 , D21C11/00 , D21H11/02
CPC分类号： B01J19/0053 , B01D11/0207 , C10G1/04 , C10G1/065 , C12M21/12 , C12M43/02 , C12P7/10 , C12P7/649 , D21B1/14 , D21C1/02 , D21C3/02 , D21C3/22 , D21C5/02 , D21C7/00 , D21C11/0007 , D21H11/02 , B01J2219/00051 , B01J2219/00162 , B01J2219/00353 , B01J2219/00891 , C10G2300/1014 , Y02E50/10 , Y02P30/20 , Y02W30/64
摘要： The presently disclosed subject matter relates to an industrial system for processing various plant materials to produce marketable materials. Particularly, the system integrates subcritical water extraction technology and includes a pre-processing module and a two-stage extractor (processing module) with constant control of temperature, pressure, and/or residence time. In some embodiments, the final product of the disclosed system can include feedstock constituents for biofuel production (sugars and/or oil), biochar, raw materials for various industries (such as pulp for manufacturing paper or cellulose for use in various industries). The disclosed system can be modular or non-modular, stationary or mobile, and can include prefabricated elements with programmed automatic or manual operation so that it can be easily moved and/or assembled on site.

2. 发明公开

US20240044080A1 UPCYCLED CELLULOSIC FIBERS 审中-公开
公开(公告)号：US20240044080A1
公开(公告)日：2024-02-08
申请号：US18021132
申请日：2021-07-22
申请人： GRASIM INDUSTRIES LIMITED
发明人： Sharad Pandharinath Pawar , Ratnesh Uday Khanolkar , Rupesh Arun Khare , Kamlesh Jamnadas Singala , Saurabh Chandrabhan Singh , Vivek Prabhakar Khare
IPC分类号： D21H13/08 , D21C5/02 , D21C9/10 , D21C9/02
CPC分类号： D21H13/08 , D21C5/02 , D21C9/1052 , D21C9/02
摘要： Cellulosic material for the production of regenerated cellulosic fiber is disclosed. The cellulosic material comprises reclaimed cellulosic material, wherein the reclaimed cellulosic material is obtained from cellulosic material waste and has an intrinsic viscosity in a range of 170 ml/g to 280 ml/g. A process for preparing reclaimed cellulosic material for the production of regenerated cellulosic fiber is also disclosed.

3. 发明公开

US20230220621A1 A METHOD OF CONTROLLING ENZYMATIC ACTIVITIES AND TOOLS RELATED THERETO 审中-公开
公开(公告)号：US20230220621A1
公开(公告)日：2023-07-13
申请号：US17996400
申请日：2021-04-20
申请人： KEMIRA OYJ
发明人： Anu JAAKKOLA , Jaakko EKMAN , Marko KOLARI , Markus KORHONEN
IPC分类号： D21C5/00 , D21C5/02 , D21C7/12 , D21H11/14 , D21H21/36 , D21H17/67 , D21H17/11 , D21H17/00
CPC分类号： D21C5/005 , D21C5/02 , D21C7/12 , D21H11/14 , D21H21/36 , D21H17/67 , D21H17/11 , D21H17/74
摘要： The present invention relates to the fields of fibers and uses thereof such as for producing fiber webs, such as paper, board or tissue. Specifically, the invention relates to a method of monitoring and controlling cellulolytic activity in an aqueous cellulose fiber suspension or process water for a production method of a fibrous web containing cellulose fibers. Also, the present invention relates to a method of manufacturing a fibrous web, such as a paper, board, tissue or the like, and use of a biocide for controlling cellulolytic activity in an aqueous cellulose fiber suspension or in process water e.g. for a production method of a fibrous web containing cellulose fibers. Still, the present invention relates to a fibrous web, such as a paper, board, tissue or the like, an aqueous cellulose fiber suspension or process water for a production method of a fibrous web containing cellulose fibers, and a system for controlling cellulolytic activity in an aqueous fiber suspension or in process water.

4. 发明申请

US20180334765A1 SHEET MANUFACTURING APPARATUS 审中-公开
公开(公告)号：US20180334765A1
公开(公告)日：2018-11-22
申请号：US16028122
申请日：2018-07-05
申请人： SEIKO EPSON CORPORATION
发明人： Toshiaki YAMAGAMI , Yoichi MIYASAKA , Nobuhito TAKAHASHI
IPC分类号： D04H1/732 , D21B1/06 , D21C5/02 , D21G9/00
CPC分类号： D04H1/732 , D21B1/06 , D21C5/02 , D21G9/0009
摘要： A sheet manufacturing apparatus can determine if the sheets supplied as feedstock have already been recycled. The sheet manufacturing apparatus has a supply unit configured to supply feedstock; a defibrating unit configured to defibrate the feedstock; an depositing unit configured to deposit defibrated material defibrated by the defibrating unit; a forming unit configured to form a sheet from a web laid by the depositing unit; a marking unit configured to apply a mark to at least one of the web and the sheet; and a reading unit configured to read the mark imparted to the feedstock when a sheet having mark imparted thereto is supplied as the feedstock.

5. 发明申请

US20180251941A1 NANOCELLULOSE PRODUCTION CO-LOCATED AT A PULP AND PAPER MILL 审中-公开
公开(公告)号：US20180251941A1
公开(公告)日：2018-09-06
申请号：US15754608
申请日：2016-08-29
申请人： API Intellectual Property Holdings, LLC
发明人： Kimberly NELSON , Theodora RETSINA , Vesa PYLKKANEN , Mikhail IAKOVLEV
IPC分类号： D21C3/06 , D21C3/20 , D21C9/00 , D21H11/04 , D21H11/06 , D21H11/20
CPC分类号： D21C3/06 , B82Y40/00 , C08B15/08 , C08H8/00 , D21C3/00 , D21C3/20 , D21C5/02 , D21C9/005 , D21C9/007 , D21C9/10 , D21H11/04 , D21H11/06 , D21H11/20 , Y02W30/648
摘要： Some variations provide a process for producing a nanocellulose material, comprising: providing a biomass feedstock comprising a bleached or unbleached pulp material; fractionating the feedstock in the presence of an acid, a solvent for lignin, and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form cellulose fibrils and/or cellulose crystals, thereby generating a nanocellulose material. The process is preferably co-located with, or adjacent to, a mill that generates the pulp material. There are several advantages of a bolt-on AVAP® nanocellulose plant to an existing pulp mill, as disclosed herein.

6. 发明申请

US20180112360A1 A METHOD OF PRODUCING FILLER 审中-公开
公开(公告)号：US20180112360A1
公开(公告)日：2018-04-26
申请号：US15562943
申请日：2016-03-31
申请人： Stora Enso OYJ
发明人： Elina Skerfe , Erik Mattsson
IPC分类号： D21H17/67 , C01F11/18 , D21C5/02 , D21H17/70 , D21J1/00 , D21H17/20
CPC分类号： D21H17/675 , C01F11/181 , C01P2002/80 , C01P2006/60 , C09C1/021 , C09C3/04 , D21C5/02 , D21H17/20 , D21H17/67 , D21H17/69 , D21H17/70 , D21J1/00 , Y02W30/648
摘要： The invention provides a method of producing a filler comprising calcium carbonate (PCC), preferably to be used in paper or paper board production or in fibre based composites. The method of the invention comprises the steps of; —providing fly ash generated in paper or paper board production; —fractionating said fly ash in at least one step, whereby a coarser fraction is separated from a finer fraction; —forming a suspension of said coarser fraction; —adding carbon dioxide to said suspension to form precipitated calcium carbonate. The method of the invention avoids problems with high amounts of arsenic and heavy metals in the production of filler comprising PCC, when using ash generated in paper or paper board production as a raw material. It has been shown that harmful elements, such as arsenic and heavy metals, are primarily accumulated in the finer fractions of the fly ash. Thus, by using the coarser fraction in the step of carbonation, the amount of arsenic and heavy metals in the final product is reduced.

7. 发明申请

US20180071706A1 PROCESS AND SYSTEM FOR PRODUCING PULP, ENERGY, AND BIODERIVATIVES FROM PLANT-BASED AND RECYCLED MATERIALS 审中-公开
公开(公告)号：US20180071706A1
公开(公告)日：2018-03-15
申请号：US15822414
申请日：2017-11-27
申请人： Tyton Biosciences, LLC
发明人： Sandeep Kumar , Peter Majeranowski , Igor Kostenyuk , Iulian Bobe , Florin Barla
IPC分类号： B01J19/00 , C12M1/00 , C12P7/10 , C12P7/64 , D21B1/14 , D21C3/02 , D21C3/22 , D21C11/00 , C10G1/04 , B01D11/02
CPC分类号： B01J19/0053 , B01D11/0207 , B01J2219/00051 , B01J2219/00162 , B01J2219/00353 , B01J2219/00891 , C10G1/04 , C10G1/065 , C10G2300/1014 , C12M21/12 , C12M43/02 , C12P7/10 , C12P7/649 , D21B1/14 , D21C1/02 , D21C3/02 , D21C3/22 , D21C5/02 , D21C7/00 , D21C11/0007 , D21H11/02 , Y02E50/16 , Y02P30/20 , Y02W30/648
摘要： The presently disclosed subject matter relates to an industrial system for processing various plant materials to produce marketable materials. Particularly, the system integrates subcritical water extraction technology and includes a pre-processing module and a two-stage extractor (processing module) with constant control of temperature, pressure, and/or residence time. In some embodiments, the final product of the disclosed system can include feedstock constituents for biofuel production (sugars and/or oil), biochar, raw materials for various industries (such as pulp for manufacturing paper or cellulose for use in various industries). The disclosed system can be modular or non-modular, stationary or mobile, and can include prefabricated elements with programmed automatic or manual operation so that it can be easily moved and/or assembled on site.

8. 发明申请

US20180002865A1 METHOD AND SYSTEM FOR RECYCLING PAPERS 审中-公开
公开(公告)号：US20180002865A1
公开(公告)日：2018-01-04
申请号：US15541520
申请日：2015-12-21
申请人： HADERA PAPER LTD.
发明人： Abraham TENENBAUM , Menachem SEGEV , Refaela VARDI , Ofer LASK
IPC分类号： D21C5/02 , D21F11/06 , D21H11/14 , D21D1/08 , D21B1/32 , D21D5/18 , D21D5/02
CPC分类号： D21C5/02 , D21B1/32 , D21D1/08 , D21D5/026 , D21D5/18 , D21F11/00 , D21F11/06 , D21H11/14 , Y02W30/646 , Y02W30/648
摘要： A method for recycling paper to produce a less white and clean office paper product for paper printing and writing, said method comprising the steps of: collecting waste papers; sorting said collected papers waste without the need to separate between the various paper grades; pressing said sorted recycled paper; pulping said sorted recycled paper by a pulper which contains water turns into a mixture; said pulper chops said sorted recycled paper into small pieces; heating said pulp mixture breaks said recycled paper down more quickly into tiny strands of cellulose or fibers to eventually, said sorted recycled paper turns into a pulp; sieving, said pulp is forced through sieves containing holes and slots of various shapes and sizes, said sieves remove small contaminants; cleaning, said pulp spinning around in large cone-shaped cylinders; heavy contaminants are thrown to the outside of the cone and fall through the bottom of the cylinder; lighter contaminants collect in the center of the cone and are removed; refining, said pulp is beaten to make said recycled fibers swell for papermaking; if said pulp contains any large bundles of fibers, said refining step separates said bundles into individual fibers; dewatering, said watery pulp enters a headbox at a paper machine, and then is sprayed in a continuous wide jet onto a huge flat wire sieve which is moving very quickly through said paper machine; on a sieve, water starts to drain from said pulp, and said recycled fibers quickly begin to bond together to form a watery sheet; said sheet moves rapidly through a series of felt-covered press rollers which squeeze out more water; said sheet, which now resembles paper, passes through a series of heated metal rollers which dry said paper’, said dried paper is wound into a giant roll and removed from the paper machine; the roll of said paper is cut into smaller rolls, or sometimes into sheets and made into said paper product.

9. 发明申请

US20170107667A1 METHOD FOR MANUFACTURING RECYCLED PULP FROM USED SANITARY PRODUCTS 审中-公开
公开(公告)号：US20170107667A1
公开(公告)日：2017-04-20
申请号：US15317410
申请日：2015-03-10
申请人： UNICHARM CORPORATION
发明人： Takayoshi KONISHI , Toshio HIRAOKA
IPC分类号： D21C5/02 , B09B3/00 , D21B1/32
CPC分类号： D21C5/02 , B09B3/00 , B09B3/0075 , D21B1/32 , D21C9/153 , D21H11/14
摘要： A recycled pulp that is reusable sanitary products is efficiently manufactured by recovering pulp fiber from used sanitary products containing the pulp fiber and a polymer absorbent. The method of the present invention comprises: a step applying a mechanical force to the used sanitary products in an aqueous solution containing a polyvalent metal ion or an acidic aqueous solution with a pH of 2.5 or lower and thus degrading the used sanitary products into the pulp fiber and other materials; a step separating the pulp fiber from the mixture of the pulp fiber and other materials that has been formed in the degradation step; and a step treating the pulp fiber thus separated with an ozone-containing aqueous solution with a pH of 2.5 or lower.

10. 发明申请

US20170081794A1 SHEET MANUFACTURING APPARATUS 有权
公开(公告)号：US20170081794A1
公开(公告)日：2017-03-23
申请号：US15126612
申请日：2015-03-18
申请人： SEIKO EPSON CORPORATION
发明人： Toshiaki YAMAGAMI , Yoichi MIYASAKA , Nobuhito TAKAHASHI
IPC分类号： D04H1/732 , D21C5/02 , D21G9/00 , D21B1/06
CPC分类号： D04H1/732 , D21B1/06 , D21C5/02 , D21G9/0009
摘要： A sheet manufacturing apparatus can determine if the sheets supplied as feedstock have already been recycled.The sheet manufacturing apparatus has a supply unit configured to supply feedstock; a defibrating unit configured to defibrate the feedstock; an depositing unit configured to deposit defibrated material defibrated by the defibrating unit; a forming unit configured to form a sheet from a web laid by the depositing unit; a marking unit configured to apply a mark to at least one of the web and the sheet; and a reading unit configured to read the mark imparted to the feedstock when a sheet having mark imparted thereto is supplied as the feedstock.

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