JPH028963B2 - - Google Patents
Info
- Publication number
- JPH028963B2 JPH028963B2 JP56127280A JP12728081A JPH028963B2 JP H028963 B2 JPH028963 B2 JP H028963B2 JP 56127280 A JP56127280 A JP 56127280A JP 12728081 A JP12728081 A JP 12728081A JP H028963 B2 JPH028963 B2 JP H028963B2
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- concentrated sulfuric
- decolorization
- decolorizing
- purity
- 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 - Lifetime
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 20
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 9
- 238000004448 titration Methods 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 238000004042 decolorization Methods 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12728081A JPS5832003A (ja) | 1981-08-13 | 1981-08-13 | 着色濃硫酸の脱色方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12728081A JPS5832003A (ja) | 1981-08-13 | 1981-08-13 | 着色濃硫酸の脱色方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832003A JPS5832003A (ja) | 1983-02-24 |
| JPH028963B2 true JPH028963B2 (fr) | 1990-02-28 |
Family
ID=14956065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12728081A Granted JPS5832003A (ja) | 1981-08-13 | 1981-08-13 | 着色濃硫酸の脱色方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832003A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE464299B (sv) * | 1988-11-16 | 1991-04-08 | Boliden Contech Ab | Foerfarande foer avfaergning av svavelsyra framstaelld enligt kontaktmetoden |
| DE3926112A1 (de) * | 1989-08-08 | 1991-02-14 | Hoechst Ag | Verfahren zur wiederaufbereitung der schwefelsaeure aus der phosphor-reinigung |
| JP3339067B2 (ja) * | 1991-12-25 | 2002-10-28 | 住友化学工業株式会社 | 硫酸アルミニウムの製造方法 |
| FR2772014B1 (fr) * | 1997-12-08 | 2000-01-07 | Atochem Elf Sa | Generation de trifluorure de bore et d'acide sulfurique a partir d'hydrate de trifluorure de bore |
| IL236365A0 (en) * | 2014-12-21 | 2015-04-30 | Melodea Ltd | Recycling of acid from acid-rich aqueous solutions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935296A (fr) * | 1972-08-04 | 1974-04-01 | ||
| JPS4991985A (fr) * | 1973-01-08 | 1974-09-03 | ||
| JPS501993A (fr) * | 1973-04-02 | 1975-01-10 |
-
1981
- 1981-08-13 JP JP12728081A patent/JPS5832003A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935296A (fr) * | 1972-08-04 | 1974-04-01 | ||
| JPS4991985A (fr) * | 1973-01-08 | 1974-09-03 | ||
| JPS501993A (fr) * | 1973-04-02 | 1975-01-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832003A (ja) | 1983-02-24 |
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