CN102432048A - Ingredient mother liquid floating object recovery method - Google Patents
Ingredient mother liquid floating object recovery method Download PDFInfo
- Publication number
- CN102432048A CN102432048A CN2010102951766A CN201010295176A CN102432048A CN 102432048 A CN102432048 A CN 102432048A CN 2010102951766 A CN2010102951766 A CN 2010102951766A CN 201010295176 A CN201010295176 A CN 201010295176A CN 102432048 A CN102432048 A CN 102432048A
- Authority
- CN
- China
- Prior art keywords
- precipitation solution
- mother liquid
- ingredient
- seston
- seed precipitation
- 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
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an ingredient mother liquid floating object recovery method, which is characterized in that the ingredient mother liquid is pumped into a settling tank baiting tube for free settling by a pump, then, the ingredient mother liquid is settled and separated and is subjected to bottom flow filtering, filtering cake Al(OH)3 is sent into an ingredient decomposition groove to be used as seeds, and filter liquid and settling separation over flown flow are simultaneously sent into an evaporation work procedure for evaporation. Compared with the prior art, the method has the following advantages that: 1, the floating object content in the ingredient mother liquid is reduced to 0.05 to 0.2g/l, the evaporation efficiency is greatly improved, and the operation period of an evaporator is prolonged; and 2, the production flow process of returning Al(OH)3 back to the production is reduced, and the yield of the Al(OH)3 and the Bayer circulation efficiency are improved.
Description
Technical field
The invention belongs to solid seston recovery technology field.
Background technology
In aluminum oxide production process, after planting the branch decomposition process, the seed precipitation solution that obtains contains Al (OH)
3Seston 2 ~ 4 grams per liters.Because seston content is higher, in order to improve cycle efficiency, also need are further incited somebody to action Al (OH) wherein
3Separate.Be to send filter to filter seed precipitation solution in the prior art, but because filtration yield is big, about 1000M
3/ hour more than, in order to guarantee the filter production capacity, the seed precipitation solution seston content that then filters out is still higher, about 1 grams per liter.In addition, find also in production operation that owing to the often damaged perhaps filter cloth joint of filter cloth is easier to reasons such as absent-mindedness, poor filtration effect occurs through regular meeting, seed precipitation solution contains Al (OH)
3The problem of seston amount severe overweight.At this moment, then need filter be stopped and overhaul,, then change filter cloth,, then connect again, production is caused bigger influence like the joint absent-mindedness if filter cloth is bad.The shortcoming of prior art is: 1, because seed precipitation solution contains Al (OH)
3The seston amount is higher, often exceeds standard, and behind the entering evaporization process, causes the vaporizer heat transfer tube to stop up, and vaporization efficiency reduces.2, return the Al (OH) of burden process with seed precipitation solution
3Measure greatlyyer, reduced the Bayer process cycle efficiency.3, make the Al (OH) that produces
3The Returning process batching has reduced Al (OH) again
3Output.
Summary of the invention
The technical problem that will solve of the present invention is:
A kind of seed precipitation solution seston recovery method is provided, and when reclaiming the seed precipitation solution seston to solve the filtering method of available technology adopting filter, seed precipitation solution contains Al (OH)
3The seston amount is higher, and often exceeds standard, thereby causes the vaporizer heat transfer tube to stop up, the technical problem that vaporization efficiency reduces, reduces the Bayer process cycle efficiency and reduced output.
The present invention takes following technical scheme:
Seed precipitation solution is advanced the subsider blanking tube with pumping carry out free setting, then the settlement separate underflow of seed precipitation solution is filtered filter cake Al (OH)
3Send kind of a branch decomposer to do seed, filtrating send evaporization process to evaporate with settlement separate overflow.
Seed precipitation solution is advanced to carry out free setting in the subsider blanking tube with pumping.
Described filtrating and settlement separate overflow seston content are 0.05 ~ 0.2 grams per liter.
The present invention compared with prior art has following advantage:
1, makes the seston content in the seed precipitation solution drop to 0.05 ~ 0.2g/l, improved vaporization efficiency greatly, prolong the vaporizer cycle of operation.
2, reduce Al (OH)
3Return Production Flow Chart, improved Al (OH)
3Output, and the Bayer cycle efficiency has improved 6.05kg/m
3-mother liquor.
Description of drawings:
accompanying drawing 1 is former process flow diagram.
accompanying drawing 2 is process flow diagram of the present invention.
Embodiment
Embodiments of the invention:
To contain Al (OH)
3Seston 3.19g/l seed precipitation solution advances the subsider blanking tube with pumping and carries out free setting, then the settlement separate underflow of seed precipitation solution is filtered filter cake Al (OH)
3Send kind of a branch decomposer to do seed, filtrating send evaporization process to evaporate with settlement separate overflow.Seed precipitation solution seston content has been dropped to below the 0.2g/l, through calculating about 18400 tons of year recovery white lake from 3.19g/l.
Claims (3)
1. a seed precipitation solution seston recovery method is characterized in that: seed precipitation solution is sent into the subsider blanking tube carry out free setting, then the settlement separate underflow of seed precipitation solution is filtered filter cake Al (OH)
3Send kind of a branch decomposer to do seed, filtrating send evaporization process to evaporate with settlement separate overflow.
2. seed precipitation solution seston recovery method according to claim 1 is characterized in that: seed precipitation solution is advanced to carry out free setting in the subsider blanking tube with pumping.
3. seed precipitation solution seston recovery method according to claim 1 is characterized in that: described filtrating and settlement separate overflow seston content are 0.05 ~ 0.2 grams per liter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102951766A CN102432048A (en) | 2010-09-29 | 2010-09-29 | Ingredient mother liquid floating object recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102951766A CN102432048A (en) | 2010-09-29 | 2010-09-29 | Ingredient mother liquid floating object recovery method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102432048A true CN102432048A (en) | 2012-05-02 |
Family
ID=45980458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102951766A Pending CN102432048A (en) | 2010-09-29 | 2010-09-29 | Ingredient mother liquid floating object recovery method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102432048A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979588A (en) * | 2014-06-03 | 2014-08-13 | 河南中美铝业有限公司 | Semen seston control device and process in aluminum oxide production through Bayer method |
| CN115612864A (en) * | 2022-11-10 | 2023-01-17 | 中铝矿业有限公司 | Process for reducing content of suspended matters in metal gallium adsorption mother liquor |
| CN116282102A (en) * | 2022-11-29 | 2023-06-23 | 山西华兴铝业有限公司 | Method for adding seeds in organic matter removal flow |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182023A (en) * | 2007-12-17 | 2008-05-21 | 中国铝业股份有限公司 | Method for treating mother liquor floating material during production of aluminum oxide |
-
2010
- 2010-09-29 CN CN2010102951766A patent/CN102432048A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182023A (en) * | 2007-12-17 | 2008-05-21 | 中国铝业股份有限公司 | Method for treating mother liquor floating material during production of aluminum oxide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979588A (en) * | 2014-06-03 | 2014-08-13 | 河南中美铝业有限公司 | Semen seston control device and process in aluminum oxide production through Bayer method |
| CN115612864A (en) * | 2022-11-10 | 2023-01-17 | 中铝矿业有限公司 | Process for reducing content of suspended matters in metal gallium adsorption mother liquor |
| CN116282102A (en) * | 2022-11-29 | 2023-06-23 | 山西华兴铝业有限公司 | Method for adding seeds in organic matter removal flow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109264758B (en) | Method for preparing 6N-grade strontium chloride | |
| CN205398770U (en) | Rehenic acid ammonium purification crystal system | |
| CN102432048A (en) | Ingredient mother liquid floating object recovery method | |
| CN101648769B (en) | Flow separation and leaf filtration process for red mud settlement separating coarse liquid and red mud washing liquid and system therefor | |
| CN102963911A (en) | Method of recycling residual alkali from sodium tungstate solution in tungsten smelting | |
| CN102417197A (en) | Method for producing sandy alumina by fly ash | |
| CN105838879B (en) | From the method and apparatus for removing removing calcium and magnesium after the heavy indium of zinc abstraction in liquid | |
| CN106943775A (en) | The device and method that solid liquid phase is continuously separated in caprolactam distillation weight raffinate | |
| CN103408046A (en) | Method for separating sodium and magnesium from laterite-nickel ore smelting primary wastewater | |
| CN201324566Y (en) | Leaf filtering system | |
| CN105776250B (en) | A kind of method that potassium chloride is extracted in the dedusting ash from steel enterprise sintering | |
| CN208959367U (en) | A kind of andrographolide refining system | |
| CN106336036A (en) | Method for recycling oxalic acid and hydrochloric acid in oxalic acid mother liquor | |
| CN103043640A (en) | Production method of industrial potassium dihydrogen phosphate | |
| CN103420350B (en) | The minimizing technology of impurity in a kind of phosphoric acid | |
| CN101372347A (en) | Salt drainage and caustification process as well as caustification system for aluminum oxide production by Bayer process | |
| CN104195332B (en) | A kind of preparation method of crystal carbonated rare earth | |
| CN101695312B (en) | Method for preparing alga inhibitor from giant reed | |
| CN107151259A (en) | The method that a kind of solid residue after extraction to citrus pectin is comprehensively utilized | |
| CN100572280C (en) | The method that a kind of mother liquor floating material during production of aluminum oxide is handled | |
| CN103526231A (en) | Method capable of improving copper sulfate production quality in copper electrolyte purifying process | |
| CN101967558A (en) | Method for preparing saponifier by directly recycling saponification wastewater produced by extraction and separation of rare earth | |
| CN1308241C (en) | Method for separating red mud from alumina stripping slurry | |
| CN102166252B (en) | Method of extracting dilute alcohol soluble substance from liquorice dry extract | |
| CN104724730A (en) | Method and device for crystallizing lead plaster desulphurization by-product sodium sulfate based on localized cooling and rapid crystal precipitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120502 |