公开(公告)号：US20210285155A1

公开(公告)日：2021-09-16

申请号：US16760416

申请日：2018-11-07

申请人： SWEETWATER ENERGY, INC.

发明人： Scott TUDMAN ,  Arunas CHESONIS

IPC分类号： D21C1/04 ,  D21C1/02 ,  D21B1/34 ,  C08B15/08

摘要： Provided is microcrystalline cellulose (MCC) from cellulosic or lignocellulosic biomass produced efficiently and quickly through cost-effective methods and systems. The MCC is comprised of short fibers due to the process through which the biomass is subjected. In addition to MCC, nanocellulose (CNF), and high quality crystalline nanocellulose (CNC) can be produced, as well as other cellulosic compounds, clean lignin and monomeric C5 and C6 sugars.

公开(公告)号：US20210284831A1

公开(公告)日：2021-09-16

申请号：US16816649

申请日：2020-03-12

申请人： Ford Global Technologies, LLC

发明人： Cristiano Grings Herbert ,  Rodrigo Denizarte de Oliveira Polkowski ,  Cristiane Carla Gonçalves ,  Angelo Nogueira Aguiar ,  Jodalva Guimarães Freire de Souza ,  Helano Lima dos Santos ,  Oberti dos Santos Almeida ,  Alper Kiziltas ,  Paulo Roberto Tavares Oliveira ,  Fernando Martins Rezende

IPC分类号： C08L23/12 ,  C08J5/04 ,  C08L1/02 ,  D01B1/50 ,  B29C48/40 ,  D21B1/06 ,  B29C48/00 ,  B29B9/14 ,  B29B9/06 ,  B29C48/04

摘要： Methods and systems are provided for a composite material. In one example, the composite material includes a polymer base reinforced with a powder formed from pupunha fibers. The resulting composite material is provided as pellets for further processing.

公开(公告)号：US11118307B2

公开(公告)日：2021-09-14

申请号：US16723674

申请日：2019-12-20

申请人： DAPROX AB

发明人： Bengt Åkerblom

IPC分类号： D21B1/36 ,  D21D1/30 ,  D21C1/02 ,  B02C7/12 ,  B02C7/14 ,  B02C7/11 ,  B02C23/02

摘要： The present invention regards a refiner plate segment (1) for a disc-type refiner apparatus (30), adapted to grind a saturated cellulosic material (M) in a refining gap (17) defined by opposed discs (20) during use of the apparatus (30), the material being moved from a refiner inlet opening (21) towards an outer edge (7) of the segment (1). The outer edge (7) of the segment (1) comprises a barrier arrangement (15) to increase the pressure in the refining gap (17) for retaining the liquid phase out to said outer edge (7). The present invention also regards a method of refining a saturated cellulosic material (M) in a refining gap (17) defined by two opposed discs (20) of a disc arrangement.

公开(公告)号：US20210277602A1

公开(公告)日：2021-09-09

申请号：US16328330

申请日：2017-08-03

申请人： SEIKO EPSON CORPORATION

发明人： Yuki OGUCHI ,  Takao MIKOSHIBA

IPC分类号： D21F7/06 ,  D21F1/02 ,  D21F1/00 ,  D21B1/06 ,  D21F3/06 ,  D21H17/33 ,  D21H23/20 ,  D21H23/06

摘要： An accumulating unit that discharges fibers by rotating a drum unit in which a plurality of openings are formed, a second web forming unit that forms a second web by operating a mesh belt, a sheet forming unit that forms a sheet from the second web, and a control unit that performs a start control for operating the accumulating unit and the second web forming unit from the stop state are included. In a case where the start control is performed from a state where the fibers are present in the drum unit, the control unit adjusts a thickness of the second web by controlling at least one of a timing at which rotation of the drum unit is initiated, a rotational speed of the drum unit, a timing at which movement of the mesh belt is initiated, and a movement speed of the mesh belt.

公开(公告)号：US20210269974A1

公开(公告)日：2021-09-02

申请号：US17325611

申请日：2021-05-20

申请人： The Procter & Gamble Company

发明人： Osman POLAT ,  Dale Gary KAVALEW

IPC分类号： D21D5/24 ,  D21D99/00 ,  D21F11/14 ,  D21B1/02

摘要： A process for manufacturing a web material is disclosed. The process generally provides the steps of: a. providing a pulp material comprising fibers and vessels; b. separating said vessels from said fibers to form an accepts stream and a rejects stream; c. forming plies with the rejects and accepts streams; and d. joining the plies.

公开(公告)号：US20210254281A1

公开(公告)日：2021-08-19

申请号：US17252438

申请日：2019-04-10

申请人： VALMET AB

发明人： Olof MELANDER ,  Peter BJÖRKLUND

IPC分类号： D21C7/08 ,  D21B1/36 ,  D21C1/02 ,  D21C1/04 ,  D21C7/06 ,  D21C7/12

摘要： A method for continuous steam explosion discharge of a pressurised reactor for thermal treatment of lignocellulose biomasses. The steam explosion discharge is complete decoupled from the thermal treatment step and the loss of steam from the process is fully controlled without jeopardizing the mechanical disintegration of the lignocellulose material from the process.

公开(公告)号：US11072887B2

公开(公告)日：2021-07-27

申请号：US16184530

申请日：2018-11-08

申请人： SEIKO EPSON CORPORATION

发明人： Naotaka Higuchi ,  Yuta Inagaki

IPC分类号： D21D5/02 ,  D21B1/04 ,  B07B13/16 ,  B07B7/06 ,  B07B11/06 ,  D21F9/00

摘要： A compactly configurable device that classifies material containing fiber can more reliably recover classified content. A classifier has a mesh disc with numerous holes, and separates screenings that pass through the holes from remnants that do not pass through; a defibrated material spray nozzle disposed to one side of the mesh disc sprays defibrated material containing fiber onto the mesh disc; a suction conduit disposed to the other side of the mesh disc suctions the waste screenings that pass through the holes; and a recovery conduit disposed on the one side of the mesh disc suctions the processing feedstock that do not pass through the holes and in the mesh disc and remain on the mesh disc. The mesh disc is disposed so the a position of the holes can move from a spraying position opposite the defibrated material spray nozzle to a suction position opposite the recovery conduit. The recovery conduit suctions, at the suction position, processing feedstock that was left at the spraying position.

公开(公告)号：US20210207289A1

公开(公告)日：2021-07-08

申请号：US17210618

申请日：2021-03-24

申请人： DOMTAR PAPER COMPANY, LLC

发明人： Harshad PANDE ,  Bruno MARCOCCIA

IPC分类号： D01B9/00 ,  D21B1/04 ,  D21D1/26 ,  D21D1/06 ,  D21C9/00 ,  D21D1/20 ,  D21H11/08 ,  D21H11/10 ,  D21H11/16 ,  D02J3/02 ,  D21H15/02 ,  D21H11/00

摘要： Various embodiments of the present invention relate to surface enhanced pulp fibers, various products incorporating surface enhanced pulp fibers, and methods and systems for producing surface enhanced pulp fibers. Various embodiments of surface enhanced pulp fibers have significantly increased surface areas compared to conventional refined fibers while advantageously minimizing reductions in length following refinement. The surface enhanced pulp fibers can be incorporated into a number of products that might benefit from such properties including, for example, paper products, paperboard products, fiber cement boards, fiber reinforced plastics, fluff pulps, hydrogels, cellulose acetate products, and carboxymethyl cellulose products. In some embodiments, a plurality of surface enhanced pulp fibers have a length weighted average fiber length of at least about 0.3 millimeters and an average hydrodynamic specific surface area of at least about 10 square meters per gram, wherein the number of surface enhanced pulp fibers is at least 12,000 fibers/milligram on an oven-dry basis.

公开(公告)号：US11033909B2

公开(公告)日：2021-06-15

申请号：US16626380

申请日：2017-07-04

申请人： OUTOTEC (FINLAND) OY

发明人： Alejandro Yanez ,  Rodrigo Grau

IPC分类号： B03D1/16 ,  B03D1/02 ,  B03D1/14 ,  C02F1/24 ,  D21B1/32

摘要： A froth flotation arrangement and method for treating mineral ore particles suspended in slurry includes a flotation cell for separating the slurry into an underflow and an overflow and a primary line including at least three flotation cells connected in series, wherein each subsequent flotation cell is arranged to receive the underflow from the previous flotation cell, the flotation cell includes a tank and an impeller within the tank, and the flotation cell includes a gas supply within the tank, the tank includes a volume of at least 200 m3, the flotation cell including a froth collection launder capable to receive the overflow the froth collection launder including a froth overflow lip, the flotation cell having an available froth surface area (A froth), the flotation cell having a pulp area (A pulp), where the pulp area (A pulp) is calculated as an average from the cross sectional areas of the tank at the height (h1) of the impeller. A ratio between a height (h) from a bottom of the tank to the froth overflow lip of the froth collection launder and the diameter (D) of the tank at the height (h1) of the impeller (h/D) is less than 1.5.

公开(公告)号：US20210148046A1

公开(公告)日：2021-05-20

申请号：US17158956

申请日：2021-01-26

申请人： David Pauwels ,  Tiffany Andersen

发明人： David Pauwels ,  Tiffany Andersen

IPC分类号： D21B1/02 ,  D21B1/04 ,  D21C3/02 ,  D21C5/00 ,  D01F2/00 ,  D21H11/12 ,  D21H27/10 ,  D21H27/00 ,  D21J3/00

摘要： Provided are purified ozonated medicinal cannabis non-hemp hurd fiber, and refined ozonated medicinal cannabis non-hemp hurd fiber, and compositions containing the ozonated medicinal cannabis non-hemp hurd fiber or refined ozonated medicinal cannabis non-hemp hurd fiber, the compositions including packaging products, molded pulp cartons such as egg cartons, smoking papers, paper packaging materials, single ply or multi-ply paperboard, absorbent paper products, and ink receptive papers.