MX2977E - IMPROVED WOOD PULP PURIFICATION AND DECOLORATION PROCEDURE - Google Patents
IMPROVED WOOD PULP PURIFICATION AND DECOLORATION PROCEDUREInfo
- Publication number
- MX2977E MX2977E MX10008775U MX10008775U MX2977E MX 2977 E MX2977 E MX 2977E MX 10008775 U MX10008775 U MX 10008775U MX 10008775 U MX10008775 U MX 10008775U MX 2977 E MX2977 E MX 2977E
- Authority
- MX
- Mexico
- Prior art keywords
- wood pulp
- decoloration
- procedure
- resin
- improved wood
- Prior art date
Links
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/04—Processes using organic exchangers
- B01J41/07—Processes using organic exchangers in the weakly basic form
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Paper (AREA)
- Steroid Compounds (AREA)
- Fats And Perfumes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
La presente invención se refiere a un procedimiento mejorado de purificación y decoloración de efluentes de pulpa de madera, de una corriente de molino de pulpa, caracterizado porque consiste en hacer pasar el efluente a un pH de 6 a 8.5 a través de una masa o lecho de resina de intercambio aniónico débil alifática y macroreticular en la forma de base libre con un valor de pk elevado de entre 5.0 y aproximadamente 10, a una temperatura comprendida entre 20°C y 80°C con lo cual se remueven los cuerpos coloridos y las impurezas, las que quedan sobre la resina, cuando la resina está agotada se regenera ésta con una solución de sosa cáustica, a una temperatura entre 20°C y 80°C.The present invention refers to an improved process of purification and discoloration of wood pulp effluents, from a pulp mill stream, characterized in that it consists in passing the effluent at a pH of 6 to 8.5 through a mass or bed of weak aliphatic and macroreticular anion exchange resin in the free base form with a high pk value of between 5.0 and approximately 10, at a temperature between 20 ° C and 80 ° C whereby the colored bodies and impurities, those that remain on the resin, when the resin is exhausted it is regenerated with a solution of caustic soda, at a temperature between 20 ° C and 80 ° C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52265374A | 1974-11-11 | 1974-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2977E true MX2977E (en) | 1980-01-15 |
Family
ID=24081755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX10008775U MX2977E (en) | 1974-11-11 | 1975-09-30 | IMPROVED WOOD PULP PURIFICATION AND DECOLORATION PROCEDURE |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5166160A (en) |
BE (1) | BE835429A (en) |
CA (1) | CA1059661A (en) |
FI (1) | FI753077A (en) |
FR (1) | FR2290399A1 (en) |
MX (1) | MX2977E (en) |
NO (1) | NO145466C (en) |
PH (1) | PH11017A (en) |
SE (1) | SE7511225L (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US24213A (en) * | 1859-05-31 | Wheel-jack for carriages | ||
CA992877A (en) * | 1971-09-16 | 1976-07-13 | Marvin J. Hurwitz | Separation of waste dyestuffs by adsorption processes |
SE372298B (en) * | 1972-10-04 | 1974-12-16 | Uddeholms Ab | |
SE395486B (en) * | 1974-01-25 | 1977-08-15 | Mo Och Domsjoe Ab | WAY TO REDUCE EMISSIONS OF ORGANIC SUBSTANCE AT CELLULOSIS FACTORIES |
-
1975
- 1975-09-23 CA CA236,183A patent/CA1059661A/en not_active Expired
- 1975-09-30 MX MX10008775U patent/MX2977E/en unknown
- 1975-10-07 SE SE7511225A patent/SE7511225L/en unknown
- 1975-10-15 JP JP12426175A patent/JPS5166160A/ja active Pending
- 1975-10-17 PH PH17668A patent/PH11017A/en unknown
- 1975-10-22 FR FR7532326A patent/FR2290399A1/en active Granted
- 1975-11-04 FI FI753077A patent/FI753077A/fi not_active Application Discontinuation
- 1975-11-06 NO NO753704A patent/NO145466C/en unknown
- 1975-11-10 BE BE161740A patent/BE835429A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2290399B1 (en) | 1979-05-04 |
SE7511225L (en) | 1976-05-12 |
CA1059661A (en) | 1979-07-31 |
JPS5166160A (en) | 1976-06-08 |
NO753704L (en) | 1976-05-12 |
NO145466B (en) | 1981-12-21 |
PH11017A (en) | 1977-10-25 |
FI753077A (en) | 1976-05-12 |
FR2290399A1 (en) | 1976-06-04 |
NO145466C (en) | 1982-03-31 |
BE835429A (en) | 1976-05-10 |
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