MA57571B1 - Acide alkylsulfonique modifié et ses utilisations - Google Patents

Acide alkylsulfonique modifié et ses utilisations

Info

Publication number
MA57571B1
MA57571B1 MA57571A MA57571A MA57571B1 MA 57571 B1 MA57571 B1 MA 57571B1 MA 57571 A MA57571 A MA 57571A MA 57571 A MA57571 A MA 57571A MA 57571 B1 MA57571 B1 MA 57571B1
Authority
MA
Morocco
Prior art keywords
plant material
modified
alkylsulfonic acid
peroxide
sulfonic acid
Prior art date
Application number
MA57571A
Other languages
English (en)
Other versions
MA57571A1 (fr
Inventor
Clay Purdy
Markus Weissenberger
Kyle G. WYNNYK
Karl W. Dawson
Original Assignee
Sixring Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sixring Inc. filed Critical Sixring Inc.
Publication of MA57571A1 publication Critical patent/MA57571A1/fr
Publication of MA57571B1 publication Critical patent/MA57571B1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/06—Peroxyhydrates; Peroxyacids or salts thereof containing sulfur
    • C01B15/08—Peroxysulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

L'invention concerne un procédé de délignification d'un matériau végétal, ledit procédé comprenant : la fourniture dudit matériau végétal comprenant des fibres de cellulose et de la lignine; l'exposition de ladite matière végétale nécessitant une composition contenant : un acide alcanesulfonique; et un peroxyde, ledit acide alkylsulfonique et ledit peroxyde étant présents dans un rapport molaire allant de 1:1 à 15:1 et le temps d'exposition étant suffisant pour éliminer sensiblement la totalité de la lignine présente sur ledit matériau végétal. L'invention concerne également des compositions aptes à réaliser une délignification.
MA57571A 2020-02-28 2021-02-26 Acide alkylsulfonique modifié et ses utilisations MA57571B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA3074198A CA3074198A1 (fr) 2020-02-28 2020-02-28 Acide methanesulfonique modifie et utilisations connexes
PCT/CA2021/000018 WO2021168538A1 (fr) 2020-02-28 2021-02-26 Acide alkylsulfonique modifié et ses utilisations

Publications (2)

Publication Number Publication Date
MA57571A1 MA57571A1 (fr) 2025-01-31
MA57571B1 true MA57571B1 (fr) 2025-07-31

Family

ID=77460666

Family Applications (1)

Application Number Title Priority Date Filing Date
MA57571A MA57571B1 (fr) 2020-02-28 2021-02-26 Acide alkylsulfonique modifié et ses utilisations

Country Status (28)

Country Link
US (1) US12276067B2 (fr)
EP (1) EP4110987A4 (fr)
JP (1) JP7671076B2 (fr)
KR (1) KR20220142533A (fr)
CN (1) CN115151692B (fr)
AR (1) AR121449A1 (fr)
AU (1) AU2021227719A1 (fr)
BR (1) BR112022016688A2 (fr)
CA (3) CA3074198A1 (fr)
CL (1) CL2022002285A1 (fr)
CO (1) CO2022012827A2 (fr)
CR (1) CR20220480A (fr)
CZ (1) CZ309860B6 (fr)
EC (1) ECSP22075400A (fr)
GB (1) GB2608073B (fr)
GE (2) GEAP202416046A (fr)
IL (1) IL295885B2 (fr)
JO (1) JOP20220198A1 (fr)
MA (1) MA57571B1 (fr)
MX (1) MX2022010587A (fr)
PE (1) PE20230379A1 (fr)
PH (1) PH12022552072A1 (fr)
PY (1) PY2117014A (fr)
RS (1) RS20220805A1 (fr)
TN (1) TN2022000233A1 (fr)
UY (1) UY39103A (fr)
WO (1) WO2021168538A1 (fr)
ZA (1) ZA202209486B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3074199A1 (fr) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Acide sulfurique modifie et utilisations connexes
CA3110360A1 (fr) * 2021-02-25 2022-08-25 Sixring Inc. Acide sulfurique modifie et utilisations connexes
CA3122786A1 (fr) * 2021-06-18 2022-12-18 Sixring Inc. Delignification de biomasse a temperature controlee
CA3149493A1 (fr) * 2022-02-18 2023-08-18 Fluid Energy Group Ltd. Composition a utiliser dans l'elimination des acides naphteniques
CA3151040A1 (fr) * 2022-03-04 2023-09-04 Sixring Inc. Procede de conversion cellulose-cellobiose ameliore
CA3154055A1 (fr) * 2022-04-01 2023-10-01 Sixring Inc. Methode de fabrication d'un biocarburant
CA3170350A1 (fr) * 2022-08-12 2024-02-12 Sixring Inc. Methode de passivation de surfaces metalliques
CA3170346A1 (fr) * 2022-08-12 2024-02-12 Sixring Inc. Nouvelle methode de production de biogaz
CA3170772A1 (fr) * 2022-08-19 2024-02-19 Sixring Inc. Ameliorations de la fermentation de biomasse en ethanol
CA3184551A1 (fr) * 2022-12-22 2024-06-22 Sixring Inc. Ameliorations a la delignification de biomasse
CA3224383A1 (en) * 2023-12-21 2025-10-30 Sixring Inc. Process for obtaining alpha cellulose
CA3224381A1 (en) * 2023-12-21 2025-10-31 Sixring Inc. Improvements in biomass delignification

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US46146A (en) * 1865-01-31 Improvement in construction of docks
EP0004292A2 (fr) * 1978-03-27 1979-10-03 International Business Machines Corporation Procédé de fabrication d'un transistor bipolaire de type MESA présentant des régions d'émetteur et de base auto-alignées
CN1104851A (zh) * 1994-11-18 1995-07-12 张星辰 一种醋酸、谷氨酸、氨合铜杀菌剂及其制备方法

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855351A (en) 1954-09-20 1958-10-07 Sanford Process Co Inc Process for electrolytically producing oxide coating on aluminum and aluminum alloys
US3509206A (en) * 1967-03-01 1970-04-28 Ppg Industries Inc Alkanesulfonic acid preparation
US3655738A (en) * 1969-10-31 1972-04-11 Ppg Industries Inc Preparation of diperphthalic acids
GB8307036D0 (en) * 1983-03-15 1983-04-20 Interox Chemicals Ltd Peroxygen compounds
DE3428352A1 (de) 1984-08-01 1986-02-13 Degussa Ag, 6000 Frankfurt Verfahren zur delignifizierung und bleiche von zellstoffen
US4614646A (en) * 1984-12-24 1986-09-30 The Dow Chemical Company Stabilization of peroxide systems in the presence of alkaline earth metal ions
GB8508010D0 (en) 1985-03-27 1985-05-01 Unilever Plc Liquid bleaching compositions
GB2175621B (en) 1985-05-28 1989-07-05 Lion Corp Bleaching compositions
DE3529968A1 (de) 1985-08-22 1987-02-26 Basf Ag Verfahren zum faerben von papier
CA1332862C (fr) 1989-07-10 1994-11-08 Marsulex Inc. Procede de fabrication de la pate a papier kraft
US5013404A (en) * 1989-11-15 1991-05-07 The Dow Chemical Company Process for alkaline peroxide bleaching of wood pulp using a quaternary amine as additive
CA2115881C (fr) 1993-02-25 2000-05-23 Michael G. Paice Methode de blanchiment sans chlore de la pate kraft
JPH07206804A (ja) 1994-01-26 1995-08-08 Mitsui Toatsu Chem Inc タウリンの精製方法
CA2134270C (fr) 1994-10-25 2005-07-26 Drew John Drexler Destruction des nox dans l'acide sulfurique
EP0779357A1 (fr) 1995-12-16 1997-06-18 The Procter & Gamble Company Emulsions stables contenant un ingrédient hydrophobe liquide
US20030224960A1 (en) 1998-09-30 2003-12-04 The Procter & Gamble Co. Liquid bleaching compositions packaged in spray-type dispenser and a process for pretreating fabrics therewith
US20040099637A1 (en) * 2000-06-16 2004-05-27 Shipley Company, L.L.C. Composition for producing metal surface topography
JP3932193B2 (ja) * 2000-12-27 2007-06-20 荏原ユージライト株式会社 銅および銅合金用のマイクロエッチング剤並びにこれを用いる銅または銅合金の微細粗化方法
WO2005070205A1 (fr) * 2004-01-09 2005-08-04 Ecolab Inc. Compositions d'acide peroxycarboxylique a chaine moyenne
US7771737B2 (en) * 2004-01-09 2010-08-10 Ecolab Inc. Medium chain peroxycarboxylic acid compositions
JP4822714B2 (ja) * 2005-02-01 2011-11-24 荏原ユージライト株式会社 スズまたはスズ合金めっき用ウィスカー防止剤およびこれを用いるウィスカー防止方法
RU2535222C2 (ru) * 2008-09-08 2014-12-10 Басф Се Способ интегрированного получения целлюлозы и пригодных для повторного использования низкомолекулярных веществ
ES2447846T3 (es) 2008-12-01 2014-03-13 Kumiai Chemical Industry Co., Ltd. Procedimiento de producción de una composición agroquímica particulada, dispersable en agua
CA2754521C (fr) * 2009-03-09 2015-11-10 Kiram Ab Procede de fabrication de cellulose faconnee associe a un systeme de recuperation d'usine de pate a papier
EP2408847A1 (fr) 2009-03-20 2012-01-25 Sika Technology AG Procédé de fabrication de produits de dégradation de la lignine chimiquement modifiés
TW201114906A (en) * 2009-04-30 2011-05-01 Annikki Gmbh Process for the production of carbohydrate cleavage products from a lignocellulosic material
KR101619380B1 (ko) * 2009-05-14 2016-05-11 삼성디스플레이 주식회사 식각액 조성물 및 이를 이용한 어레이 기판의 제조방법
JP5471049B2 (ja) 2009-06-09 2014-04-16 三菱瓦斯化学株式会社 Ｔｃｆ漂白パルプの製造方法
TWI676687B (zh) * 2009-08-06 2019-11-11 奧地利商安尼基有限公司 用以由木質纖維素材料製造醣類裂解產物之方法
KR101895421B1 (ko) * 2011-02-24 2018-09-07 삼성디스플레이 주식회사 배선, 박막 트랜지스터, 및 박막 트랜지스터 표시판과 이들을 제조하는 방법들
TWI577834B (zh) * 2011-10-21 2017-04-11 富士軟片電子材料美國股份有限公司 新穎的鈍化組成物及方法
KR20130069419A (ko) 2011-12-15 2013-06-26 미쓰비시 마테리알 가부시키가이샤 구리 혹은 구리기 합금 표면의 산화 피막의 제거 방법 및 이 방법을 사용하여 회수한 구리 혹은 구리기 합금
GB2498265B (en) 2012-01-04 2015-04-08 Procter & Gamble Fibrous structures comprising particles and methods for making same
US8835140B2 (en) * 2012-06-21 2014-09-16 Ecolab Usa Inc. Methods using peracids for controlling corn ethanol fermentation process infection and yield loss
CN103572306B (zh) 2012-07-30 2016-04-13 比亚迪股份有限公司 用于铜表面退镍的退镀液及其制备方法和用于退去铜表面镍的方法
KR102002131B1 (ko) * 2012-08-03 2019-07-22 삼성디스플레이 주식회사 식각액 조성물 및 이를 이용한 박막 트랜지스터 제조 방법
US9890321B2 (en) 2012-10-22 2018-02-13 Halliburton Energy Services, Inc. Wellbore servicing compositions and methods of making and using same
US20140121145A1 (en) * 2012-10-25 2014-05-01 Basf Se Treatment of shaped bodies comprising copper with a mixture comprising chlorine-free acids and oxidizing agent
WO2014166484A1 (fr) * 2013-04-12 2014-10-16 Loser, Ulrich Procédé de concentration de métaux à partir de déchets contenant des métaux
US10494696B2 (en) * 2013-07-08 2019-12-03 Alpha Assembly Solution Inc. Metal recovery
PT3066257T (pt) 2013-11-06 2019-06-04 Evonik Degussa Gmbh Método para a deslignificação e branqueamento de pasta de papel
CN103820796B (zh) 2014-03-26 2016-01-13 东莞市凯盟表面处理技术开发有限公司 一种不含氮、磷元素的环保不锈钢酸洗剂及其应用方法
KR102131394B1 (ko) 2014-04-02 2020-07-08 동우 화인켐 주식회사 액정표시장치용 어레이 기판의 제조방법
US10869479B2 (en) 2014-04-28 2020-12-22 American Sterilizer Company Wipe for killing spores
US20160040360A1 (en) * 2014-08-05 2016-02-11 Celanese Acetate Llc Processes for pretreating and purifying a cellulosic material
US10646607B2 (en) 2014-09-17 2020-05-12 Lonza, Inc. Activated disinfectant hydrogen peroxide compositions
US9499405B2 (en) * 2015-03-10 2016-11-22 Ei Du Pont De Nemours And Company Process for producing sulfuric acid with low levels of niter
RU2634586C1 (ru) 2016-08-01 2017-10-31 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Способ отбелки лиственной сульфатной целлюлозы
CN108069519A (zh) * 2016-11-11 2018-05-25 栾清杨 一种饮水机除垢剂
US11028249B2 (en) * 2017-08-31 2021-06-08 National Technology & Engineering Solutions Of Sandia, Llc Methods of synthesizing ionic liquids from primary alcohol-containing lignin compounds
EP3681682A4 (fr) 2017-09-15 2021-06-16 University of Maryland, College Park Matériaux de bois délignifié, et procédés de fabrication et d'utilisation desdits matériaux
CN110485488A (zh) * 2017-12-07 2019-11-22 邓超 一种带有双装载斗的装载机
WO2019191828A1 (fr) * 2018-04-06 2019-10-10 Iogen Corporation Prétraitement avec de l'acide lignosulfonique
US11441229B2 (en) * 2018-07-06 2022-09-13 Entegris, Inc. Method for selectively removing nickel platinum material
CN109761380A (zh) 2019-03-04 2019-05-17 乌鲁木齐市科发展精细化工有限公司 含有示踪聚合物的无磷阻垢剂及其制备方法
CN110201223A (zh) * 2019-03-26 2019-09-06 南开大学 一种合成高分子与天然细胞外基质复合材料、人工血管及其制备方法
CN109877097A (zh) 2019-03-29 2019-06-14 瓮福达州化工有限责任公司 湿法磷酸净化工艺用浓缩系统的清洗方法
CN109898085B (zh) * 2019-04-10 2021-07-09 深圳市松柏实业发展有限公司 退锡组合液及退锡方法
CN110485188B (zh) * 2019-07-16 2020-11-24 华南理工大学 一种木质纤维同步制备高纯纤维素和木质素纳米颗粒的方法及其应用
CA3074199A1 (fr) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Acide sulfurique modifie et utilisations connexes
CA3074194A1 (fr) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Acide sulfurique modifie et utilisations connexes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US46146A (en) * 1865-01-31 Improvement in construction of docks
EP0004292A2 (fr) * 1978-03-27 1979-10-03 International Business Machines Corporation Procédé de fabrication d'un transistor bipolaire de type MESA présentant des régions d'émetteur et de base auto-alignées
CN1104851A (zh) * 1994-11-18 1995-07-12 张星辰 一种醋酸、谷氨酸、氨合铜杀菌剂及其制备方法

Also Published As

Publication number Publication date
GB2608073B (en) 2024-02-21
EP4110987A4 (fr) 2024-03-06
GB2608073A (en) 2022-12-21
CZ2022407A3 (cs) 2022-11-02
JP2023516140A (ja) 2023-04-18
CO2022012827A2 (es) 2022-09-20
CA3074198A1 (fr) 2021-08-28
CR20220480A (es) 2023-03-03
WO2021168538A1 (fr) 2021-09-02
UY39103A (es) 2021-08-31
CL2022002285A1 (es) 2023-03-03
BR112022016688A2 (pt) 2022-10-11
CN115151692A (zh) 2022-10-04
TN2022000233A1 (en) 2024-04-01
CA3110558C (fr) 2023-02-28
AR121449A1 (es) 2022-06-08
AU2021227719A1 (en) 2022-08-18
IL295885A (en) 2022-10-01
GEP20257746B (en) 2025-03-25
GEAP202416046A (en) 2024-09-25
PY2117014A (es) 2021-12-02
PH12022552072A1 (en) 2024-02-12
CA3110558A1 (fr) 2021-08-28
RS20220805A1 (sr) 2022-10-31
JOP20220198A1 (ar) 2022-08-23
ECSP22075400A (es) 2022-11-30
EP4110987A1 (fr) 2023-01-04
MA57571A1 (fr) 2025-01-31
JP7671076B2 (ja) 2025-05-01
ZA202209486B (en) 2024-01-31
GB202213622D0 (en) 2022-11-02
US20210269971A1 (en) 2021-09-02
KR20220142533A (ko) 2022-10-21
CA3150090A1 (fr) 2021-08-28
PE20230379A1 (es) 2023-03-06
IL295885B1 (en) 2025-07-01
CZ309860B6 (cs) 2023-12-20
CN115151692B (zh) 2024-02-27
US12276067B2 (en) 2025-04-15
IL295885B2 (en) 2025-11-01
MX2022010587A (es) 2022-09-09

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