CN108405552A - Chemical industry acid sludge Neutralisation treatment method - Google Patents
Chemical industry acid sludge Neutralisation treatment method Download PDFInfo
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- CN108405552A CN108405552A CN201810127863.3A CN201810127863A CN108405552A CN 108405552 A CN108405552 A CN 108405552A CN 201810127863 A CN201810127863 A CN 201810127863A CN 108405552 A CN108405552 A CN 108405552A
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- chemical industry
- acid sludge
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- sludge
- industry acid
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- 239000002253 acid Substances 0.000 title claims abstract description 112
- 239000010802 sludge Substances 0.000 title claims abstract description 83
- 239000000126 substance Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000006386 neutralization reaction Methods 0.000 title claims abstract description 33
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 31
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 31
- 239000004571 lime Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 238000005804 alkylation reaction Methods 0.000 claims abstract description 19
- 239000002689 soil Substances 0.000 claims abstract description 19
- 230000032683 aging Effects 0.000 claims abstract description 14
- 230000029936 alkylation Effects 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000011449 brick Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 239000007795 chemical reaction product Substances 0.000 claims description 17
- 239000000047 product Substances 0.000 claims description 9
- 238000010790 dilution Methods 0.000 claims description 7
- 239000012895 dilution Substances 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims 1
- 238000003672 processing method Methods 0.000 abstract description 5
- 238000011049 filling Methods 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 description 18
- 239000000243 solution Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 5
- 239000000920 calcium hydroxide Substances 0.000 description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 229910052925 anhydrite Inorganic materials 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 235000013847 iso-butane Nutrition 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- -1 sulfuric acid Alkene Chemical class 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of chemical industry acid sludge Neutralisation treatment methods, especially a kind of processing method of the alkylation acid sludge of alkylation process units discharge, when in white lime with acid solution, introduce soil, and it is uniformly mixed into dirt in advance with white lime, it is reacted under stirring conditions with chemical industry acid sludge, the product after reaction is by ageing, after ageing reaches 78 to pH value.The product of neutralization reaction can be carried out directly filling or be utilized as non-burning brick making raw material after ageing.The present invention is especially suitable for the processing of the alkylation acid sludge of alkylation process units discharge, raw material is easy to get, and method is simple and practicable, and neutralization is obviously rapid, and processing cost is cheap, will not cause secondary pollution.
Description
Technical field
The present invention relates to a kind of chemical industry acid sludge Neutralisation treatment method, especially a kind of alkyl of alkylation process units discharge
Change the processing method of acid sludge.
Background technology
Current gasoline production just develops towards low lead and unleaded direction, and it is current production high-knock rating gasoline to be alkylated
Commonplace Conventional processing methods.This process is generated gaseous olefin and isobutyl in oil plant secondary operation
Under 98% sulphuric acid catalysis effect alkylated reaction occurs for alkane, generates industrial iso-butane and is used for concocting high-grade gasoline.
Moisture, sulphur, nitrogen compound in alkylation process in raw material, side reaction product etc. constantly enter sour phase, make sulfuric acid concentration
It continuously decreases, catalytic action also gradually weakens, and acid sludge is used as to be discharged when acid concentration is down to 80%~90%.
This ingredient in dark red acid sludge is in addition to containing considerable amount of sulfuric acid, also containing 8~14% organic matter（Glue
Matter, asphalitine, aphthenic acids, sulfuric ester, kerotenes, sulfonic acid etc.）And moisture, it is a kind of colloidal liquid that viscosity is larger, with spy
Different stink belongs to intractable petrochemical industry waste, and serious pollution will be brought to ecological environment by dealing with improperly.So China has
It closes oil plant and department all extremely payes attention to the processing of this acid sludge, and done a large amount of and effective research and developments, take
Obtained many gratifying achievements.But up to the present, the treatment technology of real idealized perfect not yet occurs.So by acid sludge
The processing method that landfill is still a kind of safety economy of current commonplace use is carried out after neutralized pretreatment.
According to country《Hazard waste landfill contamination control standard》It is required that waste pH of leaching solution is less than 7.0 and is more than
12.0 waste needs after pretreatment can admission.So alkylation acid sludge place in being had to pass through before entering landfill yard and in advance
Reason can carry out operation after reaching neutrality.
The neutralizer of neutralization pretreatment generally has sodium hydroxide, calcium hydroxide before acid sludge landfill（White lime）, calcium carbonate etc..
Wherein using sodium hydroxide, then operating cost is higher；Calcium carbonate is more due to containing impurity, and reaction efficiency is relatively low, and generates two
Carbon oxide gas, causes foam occur when reaction more, need to increase and eliminate foam measure.In contrast, calcium hydroxide（Ripe stone
Ash）It is a kind of neutralizer of more satisfactory economy for neutralizing acid sludge due to cheap.
But using calcium hydroxide（White lime）Directly with chemical industry acid sludge, the chemical industry acid sludge especially containing sulfuric acid carries out
It when neutralization, not only reacts extremely acutely, releases a large amount of reaction heat, and due to the micro-soluble material of reaction generation（Such as CaSO4）
It is covered in the surface of white lime particle, prevents the further progress of reaction.This not only affects acid sludge and Ca (OH)2Neutralization
Effect, can also waste of resource, increase operating cost.Even occur the product after reaction in actual production running and stacks the several months
Neutral situation can not be reached, bring and seriously affect to security landfill.
Invention content
The present invention provides a kind of chemical industry acid sludge Neutralisation treatment method, especially a kind of alkyl of alkylation process units discharge
Change the processing method of acid sludge.
A kind of chemical industry acid sludge Neutralisation treatment method, it is characterised in that chemical industry acid sludge and needs when white lime progress neutralization reaction
Soil is added, soil is first uniformly mixed into dirt with white lime, is mixed again with chemical industry acid sludge neutralize instead under stirring conditions
It should handle, the product after reaction reaches 7-8 by ageing, ageing to pH value.
Chemical industry acid sludge in treatment method is meant chemically reacted in a device after be discharged containing sulfuric acid, hydrochloric acid,
The acid pickle of the ingredients such as nitric acid, especially the chemical industry acid sludge containing sulfuric acid.When the acid concentration of chemical industry acid sludge is excessively high, water can be added dilute
It releases, is 1 as in terms of radix using chemical industry acid sludge quality, the addition of water is 0~2.0.Chemical industry acid sludge after dilution is carried out with dirt
Reaction.The concentration of the general acid of chemical industry acid sludge after dilution is controlled 60%（Quality）Below.
Method of the invention is particularly suitable for the processing for the alkylation acid sludge that petroleum refinery alkylation process units is discharged.This
Kind acid sludge also contains a small amount of organic polymer and water, organic polymer is mainly macromolecule in addition to containing nearly 90% sulfuric acid
Alkene, colloid, sulfuric ester and dissolving sulfide therein.Viscosity is larger, is in dark red, property is unstable, distributes a kind of spy
Different stink.
The chemical industry acid sludge of sulfur acid, is especially alkylated acid sludge, usually with white lime Ca (OH)2It is reacted as neutralizer
When, due to its reaction product such as CaSO4It is adhered to Ca (OH)2Particle surface has obstructed sulfuric acid and Ca (OH)2Sustained response, no
Only cause neutralizer Ca (OH)2Waste, can also make neutralization reaction cycle stretch-out.
For the present invention during neutralisation treatment, in use and agent --- soil is added in needs while white lime.In ripe stone
The mechanism of action of soil is introduced in ash is：Ca (OH)2Particle scatter, and expands Ca (OH)2With the contact surface that reacts of acid, play point
The effect of powder will be adhered to Ca (OH) using the irregular surface of soil particle itself in and when acid sludge in whipping process2
The CaSO of particle surface4Etc. rubbing off, play the role of rubbing agent, the Ca (OH) for keeping its unreacted complete2Particle continues to react with acid,
Promote Ca (OH)2The reaction was complete with chemical industry acid sludge.
The addition of white lime in the present invention is prepared according to acid content in chemical industry acid sludge, and acid content is higher,
The addition of white lime is bigger.The addition of water is related containing acid concentration with acid sludge when being usually diluted, and acid concentration is higher, adds water
Amount is bigger, and the practice of recommendation is that chemical industry acid sludge is added in water to be diluted.The addition of general soil is contained by reaction product
What water rate determined, according to practical operation, reaction product moisture content is 30%（Quality）At fluffy when following, convenient for neutralizing stirring
It is operated with the later stage.It is usually 1 as in terms of radix using chemical industry acid sludge weight, the addition of white lime is 0.1~2.0, native addition
Amount is 0.5~4.5.
Most preferred condition is in the present invention：
For being alkylated acid sludge, material ratio when neutralizing is calculated as radix for 1 using chemical industry acid sludge quality, in preferred participation
Each material proportion with processing procedure is preferably：0 .5~2.0 of water；White lime 0.5~1.5；Soil 0.5~1.5.
White lime（Ca(OH)2）It can be lime stone（CaCO3）Become quick lime with method for calcinating（CaO）, then with
The product that water reaction generates；Soil can be that the soil in Plain can also be the soil on hillside, such as loess, laterite, mud stone soil, gravel soil
Deng.
The method recommended in the present invention is：White lime and soil are first mixed into dirt in advance, then under agitation will
Dirt is added in chemical industry acid sludge solution.
Product after neutralization reaction is aged a period of time, to make neutralization reaction carry out more abundant, the time of ageing
Using reaction product pH value to 7-8 as terminal.
Use white lime（Ca(OH)2）When carrying out neutralization reaction with chemical industry acid sludge, it will produce acid mist and release, preferably will
It is introduced into acid fog absorption tower, uses water as absorbent, acid mist is soluble in water, and the water of dissolving acid mist can return again to dilution
Chemical industry acid sludge is used.
Product after reaction is by ageing, after ageing reaches 7-8 to pH value, the existing gypsum of product（CaSO4）, and have
Soil can be carried out directly filling or be utilized as non-burning brick making raw material.
The chemical industry acid sludge Neutralisation treatment method of the present invention is particularly suitable for the alkylation acid of alkylation process units discharge
The processing of slag, raw material are easy to get, and method is simple and practicable, and neutralization is obviously rapid, and processing cost is cheap, will not cause secondary dirt
Dye.
Description of the drawings
Attached drawing 1 is the process flow diagram using a kind of chemical industry acid sludge Neutralisation treatment method of the present invention.
Specific implementation mode
Chemical industry acid sludge is handled using the technological process of attached chemical industry acid sludge Neutralisation treatment method shown in FIG. 1.
Chemical industry acid sludge presses suitable quality dilution proportion with water, and white lime is mixed into dirt with soil in suitable quality ratio,
Dirt is added in acid sludge solution under stirring condition and is reacted, the neutralized reaction product after reaction is aged, product pH value
It can be filled when reaching 7-8 or as non-burning brick making raw material.The acid mist that reaction generates introduces molten with water absorption in absorption tower
Then water after absorption acid mist is returned to dilution acid sludge by solution.
Embodiment 1
Certain petroleum refinery alkylation acid sludge 100g, Ca (OH)2（White lime）90g, loess 150g, water 100g.Acid sludge will be first alkylated
It is diluted with water, by Ca (OH)2（White lime）It is uniformly mixed into dirt with loess.The dirt mixed is added to slowly while stirring
In alkylation acid slag liquid, 30min is reacted, is aged 3 hours after reaction, reaction product pH value 7.17.Neutralized reaction product root after ageing
It can be at non-burning brick according to the method for CN1955141A.
Comparative example 1
In addition to without loess, other materials are with above-mentioned identical quality proportioning and reaction condition, in contrast：Certain oil plant alkane
Base acid sludge 100g, Ca (OH)2（White lime）First alkylation acid sludge is diluted with water by 90g, water 100g, then while stirring by Ca
(OH)2（White lime）Slowly it is added in alkylation acid slag liquid, reacts 30min, be aged 3 hours after reaction, reaction product pH value
1.45, after being aged 5 hours, reaction product pH value 1.54, after being aged 24 hours, reaction product pH value 1.71.It is aged 15 days pH value
3.11,20 days pH value 3.77.
Embodiment 2
Wastewater from chemical industry, group become：Hydrochloric acid, sulfuric acid mixed aqueous solution 90g, wherein containing HCl 4.6%（Quality）,H2SO430%
(quality), water content 62.1%（Quality）.Take Ca (OH)2（White lime）36g, loess 63g, by Ca (OH)2（White lime）With Huang
Soil is uniformly mixed into dirt.Mixing dirt is added into mix acid liquor slowly while stirring, is stirred to react 30min, it is old after reaction
Change 360min, reaction product pH value 7.11.Neutralized reaction product after ageing can be fabricated to according to the method for CN103172334 A to be exempted from
It bakes bricks.
Embodiment 3
Certain factory is alkylated 26 tons of acid sludge, Ca (OH)2（White lime）26 tons, 40 tons of loess, 26 tons of water.Alkylation acid sludge is dissolved in water
Middle dilution, by Ca (OH)2（White lime）With loess mix uniformly at dirt.Dirt is added to alkyl slowly under agitation
Change and reacted 40 minutes in acid sludge solution, is aged 2 days after reaction, reaction product pH value 7.85.Neutralized reaction product after ageing according to
The method of CN102659376 A can be fabricated to non-burning brick.
Embodiment 4
Certain factory is alkylated acid sludge 100g, and acid sludge solution is diluted to water 150g, is weighed after Gansu Lanzhou mountainous region mud stone is crushed
150g is mixed into uniform dirt with white lime 100g, dirt is added in acid sludge solution under stirring conditions, reaction
30min is aged 60min, reaction product pH value 7.98.
Claims (8)
1. a kind of chemical industry acid sludge Neutralisation treatment method, it is characterised in that chemical industry acid sludge needs to add when carrying out neutralization reaction with white lime
It buries, soil is first uniformly mixed into dirt with white lime, is mixed again with chemical industry acid sludge carry out neutralization reaction under stirring conditions
Processing, for the product after reaction by ageing, ageing to pH value reaches 7-8.
2. chemical industry acid sludge Neutralisation treatment method according to claim 1, which is characterized in that chemical industry acid sludge is oil plant alkyl
The alkylation acid sludge or other chemical industry acid sludges containing sulfuric acid for changing process units discharge.
3. according to any chemical industry acid sludge Neutralisation treatment method of claim 1, which is characterized in that the acid concentration of chemical industry acid sludge
It when excessively high, can be diluted with water, be 1 as in terms of radix using chemical industry acid sludge quality, the addition of water is 0~2.0.
4. chemical industry acid sludge Neutralisation treatment method according to claim 3, which is characterized in that chemical industry acid sludge is carried out dilute with water
It releases, the acid concentration of the chemical industry acid sludge after dilution is less than 60 mass %.
5. chemical industry acid sludge Neutralisation treatment method according to claim 1, which is characterized in that made for 1 with chemical industry acid sludge quality
For radix meter, white lime addition is 0.1~2.0；Native addition is 0.5~4.5.
6. chemical industry acid sludge Neutralisation treatment method according to claim 2, which is characterized in that chemical industry acid sludge is alkylation acid sludge
When, it is 1 as in terms of radix using chemical industry acid sludge quality, each material proportion of participation neutralisation treatment process is：Water 0.5~2.0；It is ripe
0 .1~2.0 of lime；Soil 0.5~4.5.
7. according to any chemical industry acid sludge Neutralisation treatment method of claim 1~6, which is characterized in that in white lime and change
Work acid sludge carries out generating acid mist when neutralization reaction, is introduced into acid fog absorption tower and uses water as absorbent, then by acid mist
It is soluble in water, and for diluting chemical industry acid sludge.
8. chemical industry acid sludge Neutralisation treatment method according to claim 1, which is characterized in that the product after reaction is by old
Change, after ageing reaches 7~8 to pH value, neutralized reaction product is directly carried out to fill or is utilized as non-burning brick making raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127863.3A CN108405552B (en) | 2018-02-08 | 2018-02-08 | Chemical acid sludge neutralization treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127863.3A CN108405552B (en) | 2018-02-08 | 2018-02-08 | Chemical acid sludge neutralization treatment method |
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| Publication Number | Publication Date |
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| CN108405552A true CN108405552A (en) | 2018-08-17 |
| CN108405552B CN108405552B (en) | 2021-04-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1275443A2 (en) * | 2001-07-09 | 2003-01-15 | Porr Umwelttechnik GmbH | Method for the physical and chemical treatment, and the separation of industrial and/or domestic waste |
| CN101274131A (en) * | 2007-03-30 | 2008-10-01 | 上海信联能源有限公司 | Comprehensive utilization technique of acid residuals of petroleum |
| CN104446281A (en) * | 2014-12-10 | 2015-03-25 | 贵州省工业固体废弃物综合利用（建材）工程技术研究中心 | Sulfuric acid residue hollow thermal insulation building block and preparation method thereof |
| CN104760985A (en) * | 2015-03-25 | 2015-07-08 | 聊城市鲁西化工工程设计有限责任公司 | System and method for producing carbide slag chemical gypsum by using industrial waste sulfuric acid |
| CN105384151A (en) * | 2015-12-09 | 2016-03-09 | 南京环保产业创新中心有限公司 | Comprehensive utilization and treatment method of waste sulfuric acid |
| CN106636653A (en) * | 2016-12-27 | 2017-05-10 | 马守栋 | Comprehensive utilization method of waste acid, caustic sludge and dedusting ash |
-
2018
- 2018-02-08 CN CN201810127863.3A patent/CN108405552B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1275443A2 (en) * | 2001-07-09 | 2003-01-15 | Porr Umwelttechnik GmbH | Method for the physical and chemical treatment, and the separation of industrial and/or domestic waste |
| CN101274131A (en) * | 2007-03-30 | 2008-10-01 | 上海信联能源有限公司 | Comprehensive utilization technique of acid residuals of petroleum |
| CN104446281A (en) * | 2014-12-10 | 2015-03-25 | 贵州省工业固体废弃物综合利用（建材）工程技术研究中心 | Sulfuric acid residue hollow thermal insulation building block and preparation method thereof |
| CN104760985A (en) * | 2015-03-25 | 2015-07-08 | 聊城市鲁西化工工程设计有限责任公司 | System and method for producing carbide slag chemical gypsum by using industrial waste sulfuric acid |
| CN105384151A (en) * | 2015-12-09 | 2016-03-09 | 南京环保产业创新中心有限公司 | Comprehensive utilization and treatment method of waste sulfuric acid |
| CN106636653A (en) * | 2016-12-27 | 2017-05-10 | 马守栋 | Comprehensive utilization method of waste acid, caustic sludge and dedusting ash |
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| Publication number | Publication date |
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| CN108405552B (en) | 2021-04-06 |
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