CS274624B2 - Method of red mud neutralization that falls off during aluminium oxide production - Google Patents
Method of red mud neutralization that falls off during aluminium oxide productionInfo
- Publication number
- CS274624B2 CS274624B2 CS209588A CS209588A CS274624B2 CS 274624 B2 CS274624 B2 CS 274624B2 CS 209588 A CS209588 A CS 209588A CS 209588 A CS209588 A CS 209588A CS 274624 B2 CS274624 B2 CS 274624B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- aluminium oxide
- lime
- falls
- red mud
- oxide production
- Prior art date
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 6
- 238000000034 method Methods 0.000 title 1
- 238000006386 neutralization reaction Methods 0.000 title 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 2
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 2
- 239000000920 calcium hydroxide Substances 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000008267 milk Substances 0.000 abstract 1
- 210000004080 milk Anatomy 0.000 abstract 1
- 235000013336 milk Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The red scum falling off during production of aluminium oxide is, in order to decrease its water content, mixed with hydraulic binding agent, and the resulting mixture is solidified. To the de-watered red scum, containing from 35 to 60 percent by weight of solid particles, lime is added in the form of anhydrous an/or hydrated lime and/or slaked lime and/or lime milk in the amount of at least 5 percent, related to the contents of solid particles in red scum. Subsequently the mixture is mixed, which results in formation of liquid homogeneous material, which is solidified in the form of heap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS209588A CS274624B2 (en) | 1988-03-29 | 1988-03-29 | Method of red mud neutralization that falls off during aluminium oxide production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS209588A CS274624B2 (en) | 1988-03-29 | 1988-03-29 | Method of red mud neutralization that falls off during aluminium oxide production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS209588A2 CS209588A2 (en) | 1991-04-11 |
| CS274624B2 true CS274624B2 (en) | 1991-09-15 |
Family
ID=5357058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS209588A CS274624B2 (en) | 1988-03-29 | 1988-03-29 | Method of red mud neutralization that falls off during aluminium oxide production |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS274624B2 (en) |
-
1988
- 1988-03-29 CS CS209588A patent/CS274624B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS209588A2 (en) | 1991-04-11 |
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