CN104528716A - Hydrochloric acid steel pickling waste liquor resource application technology - Google Patents
Hydrochloric acid steel pickling waste liquor resource application technology Download PDFInfo
- Publication number
- CN104528716A CN104528716A CN201510007658.XA CN201510007658A CN104528716A CN 104528716 A CN104528716 A CN 104528716A CN 201510007658 A CN201510007658 A CN 201510007658A CN 104528716 A CN104528716 A CN 104528716A
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- China
- Prior art keywords
- hydrochloric acid
- activated carbon
- pickling waste
- waste liquor
- iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides a hydrochloric acid steel pickling waste liquor resource application technology, and belongs to the technical field of environment protection. According to the technology, waste residue of xylose factories and barley seeding food of a certain proportion are added to pickling waste liquor, activated carbon with high added value is prepared through hydrochloric acid, and hydrochloric acid is recycled at the same time; the activated carbon enables ferrous ions to be reduced, and reduced iron with high added value is obtained at the same time. The reduced iron containing carbon can be used for smelting steel and producing iron oxide red. The methylene blue absorptive value of prepared activated carbon is 3-10 ml/0.1g, the yield of the activated carbon reaches up to 50%, and the yield exceeds that of the other physical method and chemical method for preparing the activated carbon. The hydrochloric acid is recycled, the iron ions are recycled, the acid steel pickling waste liquor resource application rate is high, and the economic benefit is quite remarkable.
Description
Technical field
This technology belongs to environmental protection technical field.
Background technology
In order to improve surface quality of steel, pickling must be carried out to them, to remove in the operation of rolling ferric oxide produced at steel surface.China is from the later stage eighties, and it is main pickle solution that the basis of using for reference industrially developed country's advanced experience has been used instead hydrochloric acid.Steel, after pickling, can produce a large amount of spent pickle liquors, and nearly hundred ten thousand steres of this type of waste liquid approximately will be discharged every year in the whole nation at present, and it just increases along with the raising of steel seed output and quality.Except containing a considerable amount of remaining acid (often liter containing about 100 grams) in this waste liquid, be also rich in ferrous salt (often liter containing about 120 grams), another containing a small amount of sialic acid non-soluble substance.To it if do not carried out processing and utilizing, both can cause environmental pollution, will precious resources be wasted again.
At present the method for spent pickle liquor recycling is mainly contained: one-step calcinations; Extraction process; In and substitution method; Membrane separation process; Evaporation concentration method; Resolving hydrochloric acid method; Electrolytic process; Prepare coagulating agent; Prepare dyestuff; The treatment of wastes with processes of wastes against one another etc.
At present the technique that has of these methods is loaded down with trivial details, the product iron protochloride of the production that has, ferric oxide added value are low.
Summary of the invention
This technology adopt in spent pickle liquor, adds a certain proportion of wood sugar factory waste residue, barley seeding food, soak 24 hours, then in special process furnace, heat 1-4 hour, temperature 300-800 degree.Concentration and Heating temperature, the rate of heating of hydrogenchloride is controlled in heat-processed.Make hydrogen chloride gas and iron atom reach good activation effect to carbonized material, to ensure to prepare the quality of gac, condensation simultaneously reclaims hydrochloric acid.The gac of preparation is through grinding, washing, be separated former iron; The gac of methylenum coeruleum adsorptive value 3-10ml/0.1g and the former iron containing a certain amount of charcoal can be obtained.
Main experimental results is as follows:
Enterprise's hydrochloric acid iron and steel pickling waste liquid: hydrochloric acid 112.3g/l, iron protochloride 123.5g/l, iron ion 61.3 g/l
1, barley seeding food: moisture 7.8%, barley seeding food 13.5g, hydrochloric acid iron and steel pickling waste liquid 60ml
Heat up 1 hour to 600 degree, insulation 1 hour
Containing charcoal iron, methylenum coeruleum adsorptive value, iodine sorption value after carbonization-activation total yield, Theoretical Calculation iron, gac net yield, washing
% g % g ml/0.1g mg/g
88.1 3.7 62.1 4.5 3.8 523.4
Heat up 1 hour to 650 degree, insulation 1 hour
87.6 3.7 61.3 3.8 4.1 536.8
Heat up 1 hour to 700 degree, insulation 1 hour
84.3 3.7 57.8 4.2 5.8 532.1
Heat up 1 hour to 650 degree, insulation 2 hours
83.5 3.7 54.5 4.7 7.5 587.8
Heat up 1 hour to 650 degree, insulation 2 hours control hydrogenchloride activation concentration
81.3 3.7 52.8 4.3 9.5 657.8
2, Xylitol factory corn cob slag: moisture 8.3%, corn cob slag 16.3g, hydrochloric acid iron and steel pickling waste liquid 70ml
Heat up 1 hour to 600 degree, insulation 1 hour
87.6 4.3 63.3 5.6 5.3 586.1
Heat up 1 hour to 650 degree, insulation 1 hour
84.7 4.3 62.6 6.2 6.1 632.7
Heat up 1 hour to 700 degree, insulation 1 hour
81.3 4.3 55.2 5.9 6.8 622.5
Heat up 1 hour to 650 degree, insulation 2 hours
78.5 4.3 53.5 5.3 7.3 681.8
Heat up 1 hour to 650 degree, insulation 2 hours control hydrogenchloride activation concentration
72.8 4.3 50.8 4.8 10.5 737.2
This pickling waste acid liquor resource utilization utilizes the innovation of technology to be: in spent pickle liquor, add a certain proportion of wood sugar factory waste residue, barley seeding food, utilize hydrochloric acid prepare high added value gac, reclaim hydrochloric acid simultaneously; Gac makes reduction of divalent iron ion, obtains the former iron of high added value simultaneously.Get final product iron and steel smelting containing the former iron of charcoal, also can produce iron oxide red.Prepare gac yield up to 50%, exceed other Physical, yield that chemical method prepares gac.Hydrochloric acid reuse, iron ion reclaim, pickling waste acid liquor resource utilization utilization ratio is high, economic benefit is fairly obvious.
Claims (1)
1. hydrochloric acid pickling waste acid liquor resource utilization utilizes technology: in spent pickle liquor, add a certain proportion of wood sugar factory waste residue, a barley seeding food, utilizes spent pickle liquor to prepare the gac of high added value.Regulating activation effect by controlling chlorine hydride gas concentration, preparing gac methylenum coeruleum adsorptive value 3-10ml/0.1g, yield is up to 50%, reclaim hydrochloric acid simultaneously; Gac makes reduction of divalent iron ion, obtains the former iron of high added value simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007658.XA CN104528716B (en) | 2015-01-08 | 2015-01-08 | A kind of hydrochloric acid pickling waste acid liquor resource utilization is utilized technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007658.XA CN104528716B (en) | 2015-01-08 | 2015-01-08 | A kind of hydrochloric acid pickling waste acid liquor resource utilization is utilized technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104528716A true CN104528716A (en) | 2015-04-22 |
| CN104528716B CN104528716B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510007658.XA Expired - Fee Related CN104528716B (en) | 2015-01-08 | 2015-01-08 | A kind of hydrochloric acid pickling waste acid liquor resource utilization is utilized technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN104528716B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132607A (en) * | 2015-08-14 | 2015-12-09 | 陕西理工学院 | Process for recycling ion from lead-zinc smelting waste |
| CN105923607A (en) * | 2016-05-05 | 2016-09-07 | 齐鲁工业大学 | Hydrochloric acid steel pickling wastewater resource utilization and waste activated carbon regeneration technology |
| CN108455680A (en) * | 2018-03-30 | 2018-08-28 | 江苏宝钢精密钢丝有限公司 | A kind of iron and steel pickling waste liquid green resourceization utilizes method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD131041A1 (en) * | 1977-01-31 | 1978-05-24 | Elisabeth Gerber | PROCESS FOR THE PREPARATION OF IRON CHLORIDE SALT SAW ELISA |
| JPH0710504A (en) * | 1993-06-29 | 1995-01-13 | Nittetsu Kakoki Kk | Method for recovering hydrochloric acid excellent in purity |
| CN101259978A (en) * | 2007-12-28 | 2008-09-10 | 凌亮 | Method and device for synchronously treating steel pickling waste water and coking waste water |
| CN102689930A (en) * | 2011-03-24 | 2012-09-26 | 镇江市丹徒区江南热镀锌有限公司 | Hydrochloric acid pickling waste liquid resource integrated utilization method for preparing iron oxide and ammonium sulfate |
| CN102774832A (en) * | 2012-04-13 | 2012-11-14 | 山东轻工业学院 | Method for preparing active carbon from wheat straws by chemical method |
-
2015
- 2015-01-08 CN CN201510007658.XA patent/CN104528716B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD131041A1 (en) * | 1977-01-31 | 1978-05-24 | Elisabeth Gerber | PROCESS FOR THE PREPARATION OF IRON CHLORIDE SALT SAW ELISA |
| JPH0710504A (en) * | 1993-06-29 | 1995-01-13 | Nittetsu Kakoki Kk | Method for recovering hydrochloric acid excellent in purity |
| CN101259978A (en) * | 2007-12-28 | 2008-09-10 | 凌亮 | Method and device for synchronously treating steel pickling waste water and coking waste water |
| CN102689930A (en) * | 2011-03-24 | 2012-09-26 | 镇江市丹徒区江南热镀锌有限公司 | Hydrochloric acid pickling waste liquid resource integrated utilization method for preparing iron oxide and ammonium sulfate |
| CN102774832A (en) * | 2012-04-13 | 2012-11-14 | 山东轻工业学院 | Method for preparing active carbon from wheat straws by chemical method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132607A (en) * | 2015-08-14 | 2015-12-09 | 陕西理工学院 | Process for recycling ion from lead-zinc smelting waste |
| CN105132607B (en) * | 2015-08-14 | 2017-07-25 | 陕西理工学院 | A kind of technique that iron is reclaimed in the waste residue from lead-zinc smelting |
| CN105923607A (en) * | 2016-05-05 | 2016-09-07 | 齐鲁工业大学 | Hydrochloric acid steel pickling wastewater resource utilization and waste activated carbon regeneration technology |
| CN108455680A (en) * | 2018-03-30 | 2018-08-28 | 江苏宝钢精密钢丝有限公司 | A kind of iron and steel pickling waste liquid green resourceization utilizes method |
| CN108455680B (en) * | 2018-03-30 | 2020-01-14 | 江苏宝钢精密钢丝有限公司 | Environment-friendly resource utilization method of steel pickling waste liquid |
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| Publication number | Publication date |
|---|---|
| CN104528716B (en) | 2016-05-11 |
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Granted publication date: 20160511 Termination date: 20170108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |