ES2114449B1 - PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION. - Google Patents
PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION.Info
- Publication number
- ES2114449B1 ES2114449B1 ES9501679A ES9501679A ES2114449B1 ES 2114449 B1 ES2114449 B1 ES 2114449B1 ES 9501679 A ES9501679 A ES 9501679A ES 9501679 A ES9501679 A ES 9501679A ES 2114449 B1 ES2114449 B1 ES 2114449B1
- Authority
- ES
- Spain
- Prior art keywords
- recycling
- phase
- procedure
- glycol regeneration
- mud
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PROCEDIMIENTO PARA EL RECICLAJE DE LOS RESIDUOS DE FANGOS Y LODOS PROCEDENTES DE LA REGENERACION DE GLICOL. EL PROCEDIMIENTO COMPRENDE UNA PRIMERA FASE DE SAPONIFICACION DE LOS RESIDUOS DE FANGOS Y LODOS DE LA REGENERACION DE GLICOL CON UNA SOLUCION ALCALINA, PASANDO A CONTINUACION A UNA ETAPA DE FILTRACION Y SUCESIVAMENTE A UNA FASE DE NEUTRALIZACION CON ACIDO, DESPUES DE LO CUAL SE PROCEDE A UNA FASE DE FILTRADO Y LAVADO, OBTENIENDO EL ACIDO TEREFTALICO QUE SE SOMETE A UNA FASE DE SECADO, DESPUES DE LO CUAL PASA A UNA FASE FINAL DE TRITURADO Y ENVASADO PARA SU CONSUMO EN LA FABRICACION DE POLIETILENTEREFTALATO O BIEN PARA SU UTILIZACION COMO ACIDO TEREFTALICO. ES APLICABLE AL RECICLADO DE RESIDUOS DE REGENERACION DE GLICOL DE LA FABRICACION DE POLIESTER, EVITANDO VERTIDOS.PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION. THE PROCEDURE INCLUDES A FIRST PHASE OF SAPONIFICATION OF THE SLUDGE AND SLUDGE WASTE OF THE GLYCOL REGENERATION WITH AN ALKALINE SOLUTION, GOING NEXT TO A FILTRATION STAGE AND, SUBSEQUENTLY, AFTER A PHASE OF NEUTRALIZATION WITH ACID A PHASE OF FILTERING AND WASHING, OBTAINING THE TEREFTALICO ACID THAT IS SUBMITTED TO A DRYING PHASE, AFTER WHICH IT GOES TO A FINAL PHASE OF CRUSHING AND PACKAGING FOR ITS CONSUMPTION IN THE MANUFACTURE OF POLYETHYLETHEREFTALATE OR FOR ITS USE. IT IS APPLICABLE TO THE RECYCLING OF GLYCOL REGENERATION WASTE FROM POLYESTER MANUFACTURING, AVOIDING SPILLS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9501679A ES2114449B1 (en) | 1995-08-23 | 1995-08-23 | PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9501679A ES2114449B1 (en) | 1995-08-23 | 1995-08-23 | PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2114449A1 ES2114449A1 (en) | 1998-05-16 |
ES2114449B1 true ES2114449B1 (en) | 1999-07-16 |
Family
ID=8291429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9501679A Expired - Fee Related ES2114449B1 (en) | 1995-08-23 | 1995-08-23 | PROCEDURE FOR THE RECYCLING OF MUD AND SLUDGE WASTE FROM GLYCOL REGENERATION. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2114449B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544622A (en) * | 1965-03-10 | 1970-12-01 | Du Pont | Alkaline saponification of polyethylene terephthalate at high temperatures using controlled amount of sodium hydroxide |
US4013519A (en) * | 1976-03-25 | 1977-03-22 | Safetech, Inc. | Recovery method for polyester still bottoms |
FR2672049A1 (en) * | 1991-01-30 | 1992-07-31 | Benzaria Jacques | PROCESS FOR THE PRODUCTION OF ALKALI OR ALKALINE EARTH METAL TEREPHTHALATE OR HIGH PURITY TEREPHILIC ACID |
US5395858A (en) * | 1994-04-28 | 1995-03-07 | Partek, Inc. | Process for recycling polyester |
-
1995
- 1995-08-23 ES ES9501679A patent/ES2114449B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2114449A1 (en) | 1998-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19980516 Kind code of ref document: A1 Effective date: 19980516 |
|
FD1A | Patent lapsed |
Effective date: 20040824 |