CN1067031A - A kind of preparation method of purifying agent for polluted water - Google Patents
A kind of preparation method of purifying agent for polluted water Download PDFInfo
- Publication number
- CN1067031A CN1067031A CN 91103208 CN91103208A CN1067031A CN 1067031 A CN1067031 A CN 1067031A CN 91103208 CN91103208 CN 91103208 CN 91103208 A CN91103208 A CN 91103208A CN 1067031 A CN1067031 A CN 1067031A
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- China
- Prior art keywords
- aluminum
- reaction
- described method
- hydrochloric acid
- active silicic
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Paper (AREA)
Abstract
The present invention relates to purify papermaking, dyeing and printing sewage preparation method, it is characterized in that reacting, obtain the clad aluminum salts solution of pH≤2 with aluminum-containing raw material and hydrochloric acid, active silicic acid with the aluminium salt composite solution that contains active silicic acid.
This products material source is wide, and production technique is simple, and processing ease is with short production cycle, and cost is low, and it is few that papermaking, dyeing and printing sewage are produced the cohesion consumption, and good decolorizing effect is especially better to unmanageable paper-making black liquid decolorizing effect.
Description
The present invention relates to a kind of preparation method who contains the purifying agent for polluted water of active silicic acid aluminum chloride mixture, be mainly used in the purifying treatment of papermaking, dyeing and printing sewage.
Since the seventies, aluminium chlorohydroxide (BAC) is widely used in the purifying treatment of tap water and industrial sewage.As everyone knows, the BAC production cycle is long, only this step of slaking polymerization, needs 20-30 hour.Basification often need increase operation.Complicated operation, liquid product is short storage period, and it is good inadequately to be used for papermaking, dyeing and printing sewage, decolorizing effect, especially poorer to straw pulp sewage, the decolorization of paper industry.
Development in recent years is introduced multivalent anions in the aluminium chlorohydroxide structure, or the multivalence sun is from being prepared into composite water purifying agents such as BACS, BACFe, and technology is more complicated, and it is poorer to introduce behind the sulfate radical stability of complex solution, and storage life is shorter.
Deutsches Reichs-Patent DE3417106Al proposes to add hydrochloric acid and regulates aluminum salt solution PH≤2 in alum liquor, can improve flocculating result, but still bad to above-mentioned sewage decoloring effect.
Task of the present invention is to overcome above-mentioned shortcoming, seek that a kind of raw material sources are wide, production technique is simple, processing ease, with short production cycle, cost is low, shelf characteric good, to the papermaking dyeing and printing sewage, the purifying agent for polluted water of the especially straw pulp sewage of paper industry cohesion, good decolorizing effect.
Technology contents of the present invention is:
1. the salinity of usefulness 10-15% and aluminium ash or aluminium are quiet at 85-95 ℃, stir reaction down 2-5 hour, treat that the whole stripping reaction soln of the aluminium temperature in the raw material drops to about 80 ℃, add active silicic acid, continue to stir 20 minutes, solution temperature drops to about 40 ℃, and filtering separation gets compound liquor alumini chloridi.
2. hydrochloric acid and the baked aluminium ore powder (about 60 orders) that contains with 18-20% reacted 1.5-2 hour under 105-108 ℃ of stirring, and the reaction soln temperature drops to about 40 ℃, fully utilized behind filtration, the residue washing.Add the active silicic acid stirring in the filtrate and got compound liquor alumini chloridi in 20 minutes.
Embodiment 1.
Get 377 milliliters of 15% hydrochloric acid, place reaction flask gradation under agitation adding 14.5 gram aluminium quiet, 90-95 ℃ of stirring reaction 2 hours, naturally be cooled to 80 ℃ and add active silicic acid 0.3 gram, continue to stir 20 minutes, solution is cooled to about 40 ℃ and filters, and must have compound aluminum chloride 336 grams of yellow transparent liquid of following component.
Al
2O
3＝7.6% Cl＝17.5% SiO
2＝0.09%
Embodiment 2.
Kaolin (contains Al
2O
331.4%) 700 ℃ of following roasting half an hour, it is standby to cross 60 mesh sieves.
Get 272 milliliters of 20% hydrochloric acid, place corresponding bottle to be heated to 80 ℃ under constantly stirring, add above-mentioned kaolin 100 grams,, be cooled to naturally about 40 ℃ 105-108 ℃ of stirring reaction 2 hours, filter, divide the filter wash slag 3 times with 150 ml tap waters, collect the merging of wash water and filtrate, add active silicic acid 0.28 gram, stir and to have following component oldlace transparent liquid in 20 minutes, compound aluminum chloride 399 grams.
Al
2O
3＝7.08% Cl＝13.2% SiO
2＝0.07%
The minimum dosage of embodiment 3. cohesions compares:
Former water: the total draining of Beijing Printing and Dyeing Mill, colourity 333(are doubly) COD1121.62(PPM)
SS120(PPM) PH9.2 blue-greenish colour
The minimum dosage of table 1. cohesion
| Medicament | Example 1. samples | Example 2. samples | BAC |
| Consumption (PPM) | 25.2 | 30 | 41 |
Embodiment 4. is used for the dyeing and printing sewage treatment effect.
Former water: with embodiment 3.
Table 2. dyeing and printing sewage treatment effect
Embodiment 5. is used for the papermaking wastewater treatment effect.
Former water: the total draining of Tong County, Beijing papermaking seven factories, colourity 1300(is doubly)
COD2800(PPM) the pale brown look of PH8.5 SS670(PPM)
Table 3. papermaking wastewater treatment effect
| Medicament | Example 1. samples 150 PPM | BACSFe?150?PPM | BAC?150?PPM | ||||
| Project | Colourity | SS | COD | Colourity | SS | COD | Colourity |
| Clearance (%) | 96.9 | 99.25 | 67.46 | 92.3 | 94.78 | 71.82 | 85 |
Remarks: 1. dosing is with Al
2O
3Meter.
2.BAC it is, raw materials used identical with example 1. for the self-control sample.
Al
2O
3=15.4% basicity=47.17% PH=4.0
3.BACSFe, in the BAC structure, introduce SO for the self-control sample
2- 4With Fe
3+Mixture.
Al
2O
3=13.17% basicity=47.17% Fe
2O
3=2.54%
SO
2- 4＝2.50% PH＝3.5
Claims (5)
1, with aluminum-containing raw material and hydrochloric acid, active silicic acid react the clad aluminum salts solution, the PH of solution≤2, its effective constituent (weight %, water-soluble inorganic acid salt is in oxide compound) is: Al
2O
35-15%, SiO
20.002-0.50%, C19-30%.
2, according to claim: 1. described method, it is characterized in that aluminum-containing raw material is aluminum-containing minerals such as industrial waste alumina bits, aluminium ash, boehmite, gibbsite, clay, kaolin, also can be flyash etc. other contain Al
2O
3Industrial waste.
3, according to the described method of claim 1.2., it is characterized in that with aluminium bits, aluminium ash reaction optimum temps be 85-95 ℃, hydrochloric acid optimum concn (weight %) is 10-15%, reaction times 2-5 hour.
4, according to the described method of claim 1.2., when it is characterized in that using aluminum-containing mineral, the activated maturing temperature 700 ± 50% of breeze, roasting time 0.5-1 hour, breeze granularity 40-60 order, hydrochloric acid optimum concn (weight %) is 18-20%, 105-110 ℃ of reaction optimum temps, reaction times 1-3 hour.
5, according to the described method of claim 1.2.3.4., it is characterized in that finishing afterreaction solution temperature≤80 ℃ when reaction, add active silicic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103208 CN1067031A (en) | 1991-05-21 | 1991-05-21 | A kind of preparation method of purifying agent for polluted water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103208 CN1067031A (en) | 1991-05-21 | 1991-05-21 | A kind of preparation method of purifying agent for polluted water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1067031A true CN1067031A (en) | 1992-12-16 |
Family
ID=4905965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103208 Pending CN1067031A (en) | 1991-05-21 | 1991-05-21 | A kind of preparation method of purifying agent for polluted water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067031A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100473613C (en) * | 2004-03-02 | 2009-04-01 | 株式会社德山 | Method for treating papermaking waste water and method for utilizing silica sol in papermaking |
| CN101538081B (en) * | 2009-04-23 | 2012-06-27 | 嘉善海峡净水灵化工有限公司 | Multi-core aluminium-poly (silicon-phosphorus) aluminum chloride and production method thereof |
| CN107082457A (en) * | 2017-05-31 | 2017-08-22 | 成都原端新材料科技有限公司 | A kind of mineral decolorising agent and preparation method thereof |
| CN108077306A (en) * | 2017-12-18 | 2018-05-29 | 徐州汇尔康食品有限公司 | A kind of environmental protection water purification fungicide |
| CN108298612A (en) * | 2018-04-10 | 2018-07-20 | 绩溪县上庄老胡开文墨厂 | A kind of rice paper black liquor pretreatment agent |
-
1991
- 1991-05-21 CN CN 91103208 patent/CN1067031A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100473613C (en) * | 2004-03-02 | 2009-04-01 | 株式会社德山 | Method for treating papermaking waste water and method for utilizing silica sol in papermaking |
| CN101538081B (en) * | 2009-04-23 | 2012-06-27 | 嘉善海峡净水灵化工有限公司 | Multi-core aluminium-poly (silicon-phosphorus) aluminum chloride and production method thereof |
| CN107082457A (en) * | 2017-05-31 | 2017-08-22 | 成都原端新材料科技有限公司 | A kind of mineral decolorising agent and preparation method thereof |
| CN108077306A (en) * | 2017-12-18 | 2018-05-29 | 徐州汇尔康食品有限公司 | A kind of environmental protection water purification fungicide |
| CN108298612A (en) * | 2018-04-10 | 2018-07-20 | 绩溪县上庄老胡开文墨厂 | A kind of rice paper black liquor pretreatment agent |
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Addressee: Zhao Shizhao Document name: Deemed as a notice of withdrawal |
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