JPS5560020A - Alkaline waste liquor treating method - Google Patents
Alkaline waste liquor treating methodInfo
- Publication number
- JPS5560020A JPS5560020A JP13242678A JP13242678A JPS5560020A JP S5560020 A JPS5560020 A JP S5560020A JP 13242678 A JP13242678 A JP 13242678A JP 13242678 A JP13242678 A JP 13242678A JP S5560020 A JPS5560020 A JP S5560020A
- Authority
- JP
- Japan
- Prior art keywords
- naoh
- liquor
- fluidized bed
- furnace
- alkaline waste
- 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.)
- Pending
Links
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Compounds Of Iron (AREA)
- Paper (AREA)
Abstract
PURPOSE: To directly recover NaOH from alkaline waste liquor contg. org. matter and Na salt by concentrating the liquor; introducing the conc. liquor into a fluidized bed furnace forming a Fe2O3 type fluidized bed; and reacting the Na salt and Fe2O3 while burning the org. matter.
CONSTITUTION: Raw material (a) for a desired product and NaOH from pipe (b) are treated in reaction/washing process 1, and reaction product (c) is separated into a product and alkaline waste liquor contg. org. matter in separation process 2. The liquor is concentrated 3 and introduced into fluidized bed furnace 4 forming a Fe2O3 type fluidized bed. On the other hand, circulating Fe2O3 is separated from NaOH in separation process 6, washed, supplied with Fe2O3 from pipe (j), dried 7, and returned to furnace 4. In furnace 4 the Na salt and the Fe2O3 are reacted simultaneously with combustion of the liquor. The combustion product is dissolved in warm water in dissolution process 5, forming NaOH and Fe2O3. This NaOH is made up and fed to process 1 through pipe (b).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13242678A JPS5560020A (en) | 1978-10-27 | 1978-10-27 | Alkaline waste liquor treating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13242678A JPS5560020A (en) | 1978-10-27 | 1978-10-27 | Alkaline waste liquor treating method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5560020A true JPS5560020A (en) | 1980-05-06 |
Family
ID=15081091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13242678A Pending JPS5560020A (en) | 1978-10-27 | 1978-10-27 | Alkaline waste liquor treating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5560020A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58126391A (en) * | 1982-01-16 | 1983-07-27 | バブコツク日立株式会社 | Direct caustification with enhanced fe203 separating efficiency |
JPS58132193A (en) * | 1982-02-02 | 1983-08-06 | バブコツク日立株式会社 | Recovery of caustic soda using fluidized layer |
JPS58132191A (en) * | 1982-01-27 | 1983-08-06 | バブコツク日立株式会社 | Direct caustification method and apparatus in pulping process |
JPS58132192A (en) * | 1982-01-27 | 1983-08-06 | バブコツク日立株式会社 | Direct caustification using fluidized layer furnace |
WO1983003407A1 (en) * | 1982-03-25 | 1983-10-13 | Nguyen, Kien, Loi | Alkali regeneration process |
JPS59116491A (en) * | 1982-12-20 | 1984-07-05 | 製紙技術研究組合 | Apparatus for withdrawing product in waste liquor combustionfurnace |
-
1978
- 1978-10-27 JP JP13242678A patent/JPS5560020A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58126391A (en) * | 1982-01-16 | 1983-07-27 | バブコツク日立株式会社 | Direct caustification with enhanced fe203 separating efficiency |
JPS58132191A (en) * | 1982-01-27 | 1983-08-06 | バブコツク日立株式会社 | Direct caustification method and apparatus in pulping process |
JPS58132192A (en) * | 1982-01-27 | 1983-08-06 | バブコツク日立株式会社 | Direct caustification using fluidized layer furnace |
JPS58132193A (en) * | 1982-02-02 | 1983-08-06 | バブコツク日立株式会社 | Recovery of caustic soda using fluidized layer |
WO1983003407A1 (en) * | 1982-03-25 | 1983-10-13 | Nguyen, Kien, Loi | Alkali regeneration process |
JPS59500511A (en) * | 1982-03-25 | 1984-03-29 | 王子製紙株式会社 | Improved alkaline regeneration method |
JPH0368151B2 (en) * | 1982-03-25 | 1991-10-25 | Oji Paper Co | |
JPS59116491A (en) * | 1982-12-20 | 1984-07-05 | 製紙技術研究組合 | Apparatus for withdrawing product in waste liquor combustionfurnace |
JPS6242078B2 (en) * | 1982-12-20 | 1987-09-07 | Seishi Gijutsu Kenkyu Kumiai |
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