EP3161210A4 - Process for lowering molecular weight of liquid lignin - Google Patents

Process for lowering molecular weight of liquid lignin Download PDF

Info

Publication number: EP3161210A4
Authority: EP; European Patent Office
Prior art keywords: molecular weight; liquid lignin; lowering molecular; lowering; lignin
Prior art date: 2014-06-25
Legal status (The legal status 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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP15812198.8A

Other languages

German (de)

French (fr)

Other versions

EP3161210A1 (en

Inventor

Michael A. Lake

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

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.)

2014-06-25

Filing date

2015-06-24

Publication date

2018-01-31

2015-06-24 Application filed by Individual filed Critical Individual

2015-06-24 Priority claimed from PCT/US2015/037375 external-priority patent/WO2015200456A1/en

2017-05-03 Publication of EP3161210A1 publication Critical patent/EP3161210A1/en

2018-01-31 Publication of EP3161210A4 publication Critical patent/EP3161210A4/en

Status Withdrawn legal-status Critical Current

Classifications

- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for

EP15812198.8A 2014-06-25 2015-06-24 Process for lowering molecular weight of liquid lignin Withdrawn EP3161210A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US201462016833P	2014-06-25	2014-06-25
PCT/US2015/037375 WO2015200456A1 (en)	2014-06-25	2015-06-24	Process for lowering molecular weight of liquid lignin

Publications (2)

Publication Number	Publication Date
EP3161210A1 EP3161210A1 (en)	2017-05-03
EP3161210A4 true EP3161210A4 (en)	2018-01-31

Family

ID=58402173

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15812198.8A Withdrawn EP3161210A4 (en)	2014-06-25	2015-06-24	Process for lowering molecular weight of liquid lignin

Country Status (1)

Country	Link
EP (1)	EP3161210A4 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2623040A (en) *	1950-07-06	1952-12-23	West Virginia Pulp & Paper Co	Method of coagulating colloidal lignates in aqueous dispersions
US4911787A (en) *	1985-08-09	1990-03-27	Research Association Of Pulp And Paper Technology	Method for concentrating black liquor with oxidizing followed by CO2 addition
US20090218061A1 (en) *	2008-02-28	2009-09-03	Texaco Inc.	Process for generating a hydrocarbon feedstock from lignin
US20110268652A1 (en) *	2008-09-08	2011-11-03	Basf Se	Method for the integrated production of cellulose and low-molecular-weight reusable materials
WO2011138357A1 (en) *	2010-05-07	2011-11-10	Basf Se	Method for producing at least one low-molecular-weight aromatic valuable material from a lignin-containing starting material
US20110294991A1 (en) *	2009-09-25	2011-12-01	Lake Michael A	Process for recovering lignin
WO2013188401A1 (en) *	2012-06-13	2013-12-19	Liquid Lignin Company	Process for producing energy from lignin
US20140121359A1 (en) *	2012-10-30	2014-05-01	Blackburn John C	Ph-induced fractionation processes for recovery of lignin

2015
- 2015-06-24 EP EP15812198.8A patent/EP3161210A4/en not_active Withdrawn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2623040A (en) *	1950-07-06	1952-12-23	West Virginia Pulp & Paper Co	Method of coagulating colloidal lignates in aqueous dispersions
US4911787A (en) *	1985-08-09	1990-03-27	Research Association Of Pulp And Paper Technology	Method for concentrating black liquor with oxidizing followed by CO2 addition
US20090218061A1 (en) *	2008-02-28	2009-09-03	Texaco Inc.	Process for generating a hydrocarbon feedstock from lignin
US20110268652A1 (en) *	2008-09-08	2011-11-03	Basf Se	Method for the integrated production of cellulose and low-molecular-weight reusable materials
US20110294991A1 (en) *	2009-09-25	2011-12-01	Lake Michael A	Process for recovering lignin
WO2011138357A1 (en) *	2010-05-07	2011-11-10	Basf Se	Method for producing at least one low-molecular-weight aromatic valuable material from a lignin-containing starting material
WO2013188401A1 (en) *	2012-06-13	2013-12-19	Liquid Lignin Company	Process for producing energy from lignin
US20140121359A1 (en) *	2012-10-30	2014-05-01	Blackburn John C	Ph-induced fractionation processes for recovery of lignin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015200456A1 *

Also Published As

Publication number	Publication date
EP3161210A1 (en)	2017-05-03

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Legal Events

Date	Code	Title	Description
2017-01-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2017-03-31	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2017-03-31	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2017-05-03	17P	Request for examination filed	Effective date: 20170124
2017-05-03	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2017-05-03	AX	Request for extension of the european patent	Extension state: BA ME
2017-10-04	DAV	Request for validation of the european patent (deleted)
2017-10-04	DAX	Request for extension of the european patent (deleted)
2018-01-31	A4	Supplementary search report drawn up and despatched	Effective date: 20180105
2018-01-31	RIC1	Information provided on ipc code assigned before grant	Ipc: D21H 17/23 20060101AFI20171222BHEP
2018-12-30	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2019-01-30	18D	Application deemed to be withdrawn	Effective date: 20180803