BRPI0407331B1 - process for the recovery of methacrylic acid from its aqueous diluted solutions by reverse osmosis. - Google Patents

process for the recovery of methacrylic acid from its aqueous diluted solutions by reverse osmosis.

Info

Publication number: BRPI0407331B1
Authority: BR; Brazil
Prior art keywords: recovery; methacrylic acid; reverse osmosis; diluted solutions; aqueous diluted
Prior art date: 2003-02-25

Application number

BRPI0407331-2A

Other languages

Portuguese (pt)

Inventor

Massimo Luperi

Vincenzo Redaelli

Marco Rigamonti

Maurizio Panetta

Dario Giudici

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.)

2003-02-25

Filing date

2004-02-20

Publication date

2013-03-19

2004-02-20 Application filed filed Critical

2006-01-10 Publication of BRPI0407331A publication Critical patent/BRPI0407331A/en

2013-03-19 Publication of BRPI0407331B1 publication Critical patent/BRPI0407331B1/en

Links

CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 title 1
238000000034 method Methods 0.000 title 1
238000011084 recovery Methods 0.000 title 1
238000001223 reverse osmosis Methods 0.000 title 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Water Supply & Treatment (AREA)
Nanotechnology (AREA)
Chemical Kinetics & Catalysis (AREA)
Life Sciences & Earth Sciences (AREA)
Hydrology & Water Resources (AREA)
Environmental & Geological Engineering (AREA)
Organic Chemistry (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

BRPI0407331-2A 2003-02-25 2004-02-20 process for the recovery of methacrylic acid from its aqueous diluted solutions by reverse osmosis. BRPI0407331B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITMI20030329 ITMI20030329A1 (en)	2003-02-25	2003-02-25	METHACRYLIC ACID RECOVERY PROCESS FROM ITS DILUTED AQUEOUS SOLUTIONS BY REVERSE OSMOSIS.
PCT/EP2004/001683 WO2004076362A1 (en)	2003-02-25	2004-02-20	A process for the recovery of methacrylic acid from its aqueous diluted solutions by reverse osmosis

Publications (2)

Publication Number	Publication Date
BRPI0407331A BRPI0407331A (en)	2006-01-10
BRPI0407331B1 true BRPI0407331B1 (en)	2013-03-19

Family

ID=32923034

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BRPI0407331-2A BRPI0407331B1 (en)	2003-02-25	2004-02-20	process for the recovery of methacrylic acid from its aqueous diluted solutions by reverse osmosis.

Country Status (5)

Country	Link
EP (1)	EP1618070A1 (en)
CN (1)	CN100540476C (en)
BR (1)	BRPI0407331B1 (en)
IT (1)	ITMI20030329A1 (en)
WO (1)	WO2004076362A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN114656638B (en) *	2022-03-03	2024-06-25	万华化学集团股份有限公司	A continuous synthesis method and device for polysulfone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4022222A1 (en) *	1990-07-12	1992-01-16	Erdoelchemie Gmbh	METHOD FOR PURIFYING ACRYLNITRILE WASTE WATER
JPH0724458A (en) *	1991-03-27	1995-01-27	Loctite Corp	Method of treating waste water from process of cleaning by impregnation
JPH05131190A (en) *	1991-11-11	1993-05-28	Nitto Denko Corp	Treatment of spent liquid containing acrylate-based substance
DE4410193A1 (en) *	1994-03-24	1995-09-28	Degussa	Sealing of porous articles with curable impregnating fluid
BR9815459A (en) *	1997-03-14	2001-10-16	Du Pont	Process for the treatment of an effluent stream, process for the production of an aromatic carboxylic acid and plant for the production of an aromatic carboxylic acid
DE10113278A1 (en) *	2001-03-16	2002-09-19	Zahnradfabrik Friedrichshafen	Pressure die-casting wash water purification involves reverse osmosis and membrane filtration to separate acrylates and methacrylates before ecologically acceptable directing to public drainage system

2003
- 2003-02-25 IT ITMI20030329 patent/ITMI20030329A1/en unknown
2004
- 2004-02-20 WO PCT/EP2004/001683 patent/WO2004076362A1/en not_active Ceased
- 2004-02-20 CN CNB200480004671XA patent/CN100540476C/en not_active Expired - Fee Related
- 2004-02-20 BR BRPI0407331-2A patent/BRPI0407331B1/en not_active IP Right Cessation
- 2004-02-20 EP EP04713044A patent/EP1618070A1/en not_active Ceased

Also Published As

Publication number	Publication date
CN1750996A (en)	2006-03-22
CN100540476C (en)	2009-09-16
BRPI0407331A (en)	2006-01-10
EP1618070A1 (en)	2006-01-25
WO2004076362A1 (en)	2004-09-10
ITMI20030329A1 (en)	2004-08-26

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Legal Events

Date	Code	Title	Description
2012-04-17	B07A	Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
2013-01-08	B09A	Decision: intention to grant [chapter 9.1 patent gazette]
2013-03-19	B16A	Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]	Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/02/2004, OBSERVADAS AS CONDICOES LEGAIS.
2021-10-26	B25D	Requested change of name of applicant approved
2021-11-16	B25G	Requested change of headquarter approved
2021-12-07	B25A	Requested transfer of rights approved
2022-12-13	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE A 19A ANUIDADE.
2023-03-28	B24J	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)	Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2710 DE 13-12-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.