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    METHOD FOR SEPARATING LIGNIN FROM BLACK LIQUOR
    51.
    发明专利
    METHOD FOR SEPARATING LIGNIN FROM BLACK LIQUOR 未知

    公开(公告)号：CA2799798A1

    公开(公告)日：2011-12-08

    申请号：CA2799798

    申请日：2011-05-31

    Applicant: FPINNOVATIONS

    Inventor： KOUISNI LAMFEDDAL ,  PALEOLOGOU MICHAEL

    IPC: C08H7/00

    Abstract: A process for the removal of lignin from black liquor comprising, a)oxidizing the black liquor containing lignin to remove total reduced sulphur (TRS), b)acidifying the oxidized black liquor to precipitate lignin and c)filtering precipitated lignin from the acidified black liquor. The filtering is followed by an optional washing of the filtered lignin with water and/or acid.

    FRACTIONATION OF A WASTE LIQUOR STREAM FROM NANOCRYSTALLINE CELLULOSE PRODUCTION
    52.
    发明专利
    FRACTIONATION OF A WASTE LIQUOR STREAM FROM NANOCRYSTALLINE CELLULOSE PRODUCTION 未知

    公开(公告)号：CA2767386A1

    公开(公告)日：2011-02-17

    申请号：CA2767386

    申请日：2010-07-28

    Applicant: FPINNOVATIONS

    Inventor： JEMAA NACEUR ,  PALEOLOGOU MICHAEL ,  ZHANG XIAO

    IPC: C01B17/90 ,  B01D61/00 ,  C08B1/00 ,  D21C11/00

    Abstract: During nanocrystalline cellulose (NCC) production, a considerable amount of sulphuric acid is used. After the separation of the NCC, the remaining solution contains sugars and residual sulphuric acid. The sugars are in the monomeric and oligomeric forms. To reduce the cost of NCC production and to produce other added-value products, the spent acid stream can be fractionated into sugar oligomers, sugar monomers, and acid. The acid can be recycled to the NCC manufacturing process after concentration. The sugar monomers and sugar oligomers can be used for the manufacturing of other valuable chemicals. Membrane nanofiltration can be used to achieve this objective. A polymeric membrane with a molecular weight cut-off in the range of 200 Dalton was employed. Using this approach, the majority of the acid was recovered in the permeate while the sugars were concentrated in a smaller stream. The sugar level in the separated acid/permeate stream was only about 3% of the original concentration. A second membrane filtration stage can be used to separate the monomeric from the oligomeric sugars. The two sugar streams can be employed in different applications to produce value-added products.

    LIGNIN RECOVERY AND FURFURAL PRODUCTION FROM BIOMASS PREHYDROLYSATE STREAMS
    54.
    发明专利
    LIGNIN RECOVERY AND FURFURAL PRODUCTION FROM BIOMASS PREHYDROLYSATE STREAMS 未知

    公开(公告)号：CA3018578C

    公开(公告)日：2020-09-08

    申请号：CA3018578

    申请日：2017-04-20

    Applicant: FPINNOVATIONS

    Inventor： JEMAA NACEUR ,  MAZAR ADIL ,  WAFA AL DAJANI WALEED ,  PALEOLOGOU MICHAEL

    IPC: C07D307/50

    Abstract: The present invention relates to a method of producing furfural and extracting lignin from a hemi-cellulosic biomass solution comprising a total quantity of C5 sugars, comprising the steps of heating the hemi-cellulosic biomass solution to a temperature of at least about 200°C; acidifying the hemi-cellulosic biomass solution with acid to produce the furfural in vapor phase; and condensing the furfural to recover furfural in solution, wherein the furfural is produced at a total molar yield of at least 70% of moles of furfural produced/the total moles C5 sugars present in the initial hemi-cellulosic biomass solution. Low molecular weight lignin can also be recovered from the hemi-cellulosic biomass solution prior to furfural production by membrane concentration, acidification, coagulation and filtration.

    HIGH RESIDUAL CONTENT (HRC) KRAFT/SODA LIGNIN AS AN INGREDIENT IN WOOD ADHESIVES
    56.
    发明专利
    HIGH RESIDUAL CONTENT (HRC) KRAFT/SODA LIGNIN AS AN INGREDIENT IN WOOD ADHESIVES 未知

    公开(公告)号：CA2981722A1

    公开(公告)日：2016-10-20

    申请号：CA2981722

    申请日：2016-04-15

    Applicant: FPINNOVATIONS

    Inventor： FENG MARTIN W ,  HE GUANGBO ,  ZHANG YAOLIN ,  WANG XIANG-MING ,  KOUISNI LAMFEDDAL ,  PALEOLOGOU MICHAEL

    IPC: C09J197/00 ,  B27N1/02 ,  B27N3/00 ,  C09J161/00

    Abstract: Most processes currently being proposed and/or used for the production of lignin from kraft or soda black liquors are capable of producing two main types of lignin: high residual content (HRC) lignin and low residual content (LRC) lignin. Surprisingly, it was discovered that HRC lignin, is a suitable ingredient in alkaline adhesives, particularly wood adhesives of the phenolic type (e.g. resole resins). This biomaterial is environmentally green and remarkably low cost, which makes it an industrially viable material to be used as a novel and major ingredient in phenolic adhesives for the manufacture of exterior grade plywood, laminated veneer lumber, oriented strand board (OSB) and other wood products - this was successfully demonstrated in a number of laboratory experiments as well as several different mill trials. The composition, preparation and application of such wood adhesives are hereby disclosed.

    método para produzir um polímero adesivo de fenol-formaldeído, polímero adesivo de fenol-formaldeído, e, compensado de madeira
    57.
    发明专利
    método para produzir um polímero adesivo de fenol-formaldeído, polímero adesivo de fenol-formaldeído, e, compensado de madeira 未知

    公开(公告)号：BR112013020301A2

    公开(公告)日：2016-10-18

    申请号：BR112013020301

    申请日：2012-02-10

    Applicant: FPINNOVATIONS

    Inventor： KOUISNI LAMFEDDAL ,  FENG MARTIN ,  PALEOLOGOU MICHAEL ,  WANG XIANG-MING ,  ZHANG YAOLIN

    IPC: B32B21/13 ,  C09J11/04 ,  C09J161/06

    Abstract: método para produzir um polímero adesivo de fenol-formaldeído, polímero adesivo de fenol-formaldeído, e, compensado de madeira polímerosl adesivos de fenol-formaldeído e lignina-fenol-formaldeído com propriedades melhoradas são divulgados, bem como o método de produção destes. o método compreende fornecer pelo menos um composto fenólico, pelo menos m composto de formaldeído, um hidróxido de metal alcalino, água e pelo menos um negro de fumo; misturar o pelo menos um composto fenólico, o pelo menos um composto de formaldeído, o hidróxido de metal alcalino, a água e o negro de fumo para produzir um meio de metilolação em um ph de cerca de 10 ou menos; mantendo o meio em uma temperatura de metilolação com a água; e aumentado a temperatura do meio metilolado para produzir o polímero de fenol-formaldeído por intermédio de uma reação de condensação.

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