ES2049165A1 - Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno. - Google Patents
Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno.Info
- Publication number
- ES2049165A1 ES2049165A1 ES9200256A ES9200256A ES2049165A1 ES 2049165 A1 ES2049165 A1 ES 2049165A1 ES 9200256 A ES9200256 A ES 9200256A ES 9200256 A ES9200256 A ES 9200256A ES 2049165 A1 ES2049165 A1 ES 2049165A1
- Authority
- ES
- Spain
- Prior art keywords
- bleaching
- oxygen
- lignification
- white liquid
- kraft paper
- 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.)
- Granted
Links
- 239000002655 kraft paper Substances 0.000 title abstract 4
- 238000004061 bleaching Methods 0.000 title abstract 3
- 229910052760 oxygen Inorganic materials 0.000 title abstract 3
- 239000003513 alkali Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 244000166124 Eucalyptus globulus Species 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000123 paper Substances 0.000 abstract 1
Landscapes
- Paper (AREA)
Abstract
PROCEDIMIENTO PARA PRE-BLANQUEAR O DESLIGNIFICAR PASTA KRAFT EMPLEANDO OXIGENO. CONSISTE EN PRE-BLANQUEAR O DESLIGNIFICAR, CON OXIGENO, UNA PASTA KRAFT DE EUCALIPTO QUE TIENE CONSISTENCIA MEDIA, EMPLEANDO LIQUIDO BLANCO SIN OXIDAR COMO FUENTE ALCALI, A UNA DOSIFICACION DE ALCALI DE 1,2 A 2,4% DE NAOH Y UNA SULFURACION DE 0 A 55%, SIN AFECTAR ADVERSAMENTE AL GRADO DE DESLIGNIFICACION NI A LA SELECTIVIDAD DEL PROCESO. LA INVENCION ES APLICABLE A LA FABRICACION DE PAPEL A BASE DE PASTA PAPELERA KRAFT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9200256A ES2049165B1 (es) | 1990-08-10 | 1992-02-07 | Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9003954A BR9003954A (pt) | 1990-08-10 | 1990-08-10 | Processo de pre-branqueamento ou deslignificacao com oxigenio de polpa kraft |
| ES9200256A ES2049165B1 (es) | 1990-08-10 | 1992-02-07 | Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2049165A1 true ES2049165A1 (es) | 1994-04-01 |
| ES2049165B1 ES2049165B1 (es) | 1994-10-16 |
Family
ID=25664406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9200256A Expired - Fee Related ES2049165B1 (es) | 1990-08-10 | 1992-02-07 | Procedimiento para pre-blanquear o deslignificar pasta kraft empleando oxigeno. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2049165B1 (es) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES322173A1 (es) * | 1965-01-25 | 1966-11-01 | Electric Reduction Co | Un procedimiento para blanquear pasta celulësica fibrosa |
| ES8102237A1 (es) * | 1979-05-25 | 1980-12-16 | Interox Sa | Procedimiento para la deslignificacion y el blanqueo de pas-tas celulosicas quimicas y semi-quimicas |
-
1992
- 1992-02-07 ES ES9200256A patent/ES2049165B1/es not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES322173A1 (es) * | 1965-01-25 | 1966-11-01 | Electric Reduction Co | Un procedimiento para blanquear pasta celulësica fibrosa |
| ES8102237A1 (es) * | 1979-05-25 | 1980-12-16 | Interox Sa | Procedimiento para la deslignificacion y el blanqueo de pas-tas celulosicas quimicas y semi-quimicas |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2049165B1 (es) | 1994-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD2A | Announcement of lapse in spain |
Effective date: 20180806 |