SU1386261A1 - Method of cleaning air from sulphur dioxide - Google Patents
Method of cleaning air from sulphur dioxide Download PDFInfo
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- SU1386261A1 SU1386261A1 SU864096001A SU4096001A SU1386261A1 SU 1386261 A1 SU1386261 A1 SU 1386261A1 SU 864096001 A SU864096001 A SU 864096001A SU 4096001 A SU4096001 A SU 4096001A SU 1386261 A1 SU1386261 A1 SU 1386261A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- suspension
- purification
- copper
- air
- consumption
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims description 22
- 238000004140 cleaning Methods 0.000 title description 2
- 235000010269 sulphur dioxide Nutrition 0.000 title 1
- 239000004291 sulphur dioxide Substances 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000000746 purification Methods 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 8
- 239000004571 lime Substances 0.000 claims abstract description 8
- 235000019738 Limestone Nutrition 0.000 claims abstract description 5
- 239000006028 limestone Substances 0.000 claims abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000004615 ingredient Substances 0.000 claims abstract 2
- 239000000725 suspension Substances 0.000 claims description 17
- -1 sulfite bisulfite ions Chemical class 0.000 claims description 4
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 229910000358 iron sulfate Inorganic materials 0.000 claims 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004887 air purification Methods 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- 230000008719 thickening Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- 238000009856 non-ferrous metallurgy Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Изобретение относитс к технологии очистки воздуха от SOj, примен емой в цветной металлургии и сернокислотном производстве и позвол к цей повысить степень очистки и снизить расход известн ка. Воздух, содержащий 0,18-0,22 об.% SO, барботируют Н&рез суспензию, состо щую из известн ка и сточных вод медеплавильного производства, полученных при сгущении , фильтрации и сушке пульпы медных концентратов. Соотношение твердого к жидкому суспензии составл ет 1:9, исходный рН 7,2-7,6, конечный рН 4. Температура очищаемого воздуха 20- 50 С. Используемые сточные воды могут содержать следующие ингредиенты, г/л; Си 0,020-0,500; Fe 0,0001-0,004; Са 0,100-0,900 Mg 0,020-0,060; К 0,010- 0,080J Na 0,200-3,00 Pb 0,005-0,006, Zn 0,009-0,020{ Cl 0,060-0,800; сульфат-ионы 0,200-1,000; вода до 1 л. При скорости барботировани 60 мп/мин способ обеспечивает полную очистку от SO, при расходе известн ка 2,9- 3,2 г/м газа. 1 з.п. ф-лы, 1 табл. SThe invention relates to the technology of air purification from SOj, used in non-ferrous metallurgy and sulfuric acid production, and allowed to increase the degree of purification and reduce the consumption of lime. Air containing 0.18–0.22 vol.% SO splashes H & s slurry, consisting of limestone and copper smelter production effluent, obtained by thickening, filtering and drying copper concentrate pulp. The ratio of solid to liquid suspension is 1: 9, the initial pH is 7.2-7.6, the final pH is 4. The temperature of the purified air is 20-50 C. The wastewater used may contain the following ingredients, g / l; C 0,020-0,500; Fe 0.0001-0.004; Ca 0.100-0.900 Mg 0.020-0.060; K 0,010 - 0,080J Na 0,200-3,00 Pb 0,005-0,006, Zn 0,009-0,020 {Cl 0,060-0,800; sulfate ions 0,200-1,000; water up to 1 l. With a sparging rate of 60 ppm, the method ensures complete removal of SO from a limestone consumption of 2.9-3.2 g / m of gas. 1 hp f-ly, 1 tab. S
Description
113113
Изобретение относитс к очистке газов от диоксида серы и может быть использовано в медеплавильном и сер- но-кислотном производствах дл очист- ки слабоконцентрированных отход щих газов.The invention relates to the purification of gases from sulfur dioxide and can be used in the copper-smelting and sulfur-acid industries for the purification of low-concentration exhaust gases.
Цель изобретени - повьппение степени очистки и снижение расхода известн ка .The purpose of the invention is to increase the degree of purification and reduce lime consumption.
Пример 1. В реакционный сосуд диаметром 0,028 м и высотой 0,20 м помещают 10 г очищающей суспензии. Суспензию готов т смешиванием извест Example 1. In a reaction vessel with a diameter of 0.028 m and a height of 0.20 m, 10 g of a cleaning suspension is placed. A suspension is prepared by mixing a known
н ка, содержащего 76,25-96,78 мас.% СаСОэ, измельченного до фракции, равной 74 мкм, со сточными водами медеплавильного производства, прлученны- ми при сгущении, фильтрации и сушке пульпы медных концентратов. Соотноше- ние твердого к жидакому составл ет 1:9, исходное значение рН суспензии 7,2-7,6. Через указанную суспензию со скоростбю 60 мл/мин барботируют воздух, выбрасываемый серно-кислот- ным цехом В атмосферу, содержащий 0,2 об.% диоксида серы. Температура очищаемого воздуха 50 С. В процессе очистки ведут ПОСТОЯННЕЙ контроль за изменением рН суспензии и,за содержа- нием диоксида серы в очищенном газе. Очистку воздуха провод т до достиже- ни рН суспензии 4,0, после чего отработанную суспензию замен ют свежейnka containing 76.25-96.78 wt.% CaCOE, ground to a fraction of 74 microns, with copper-smelter wastewater produced during thickening, filtration and drying of copper concentrate pulp. The solid-to-liquid ratio is 1: 9, the initial pH of the suspension is 7.2-7.6. Through this suspension with a speed of 60 ml / min, air emitted from the sulfuric acid shop is bubbled into the atmosphere containing 0.2% by volume of sulfur dioxide. The temperature of the purified air is 50 ° C. During the purification process, the pH of the suspension and the content of sulfur dioxide in the purified gas are CONTINUED. Air purification is carried out until the suspension has a pH of 4.0, after which the spent suspension is replaced with fresh
Сточные воды медеплавильного про- изводства содержат активные компоненты в следугацем количестве, г/л:Copper smelter wastewater contains active ingredients in the following amount, g / l:
0,0200.020
0,0040,004
0,1000,100
. 0,060. 0.060
0,0800.080
0,2000,200
оны0,200.ony0,200.
0,0600.060
0,0050,005
0,0200.020
Степень очистки воздуха от диоксида серы составл ет 100%, удельный расход известн ка 3,2 г/м очищаемо- го воздуха, а производительность указанной суспензии 0,031 м газа на 1 мл суспензии.The degree of purification of air from sulfur dioxide is 100%, the specific consumption of lime is 3.2 g / m of purified air, and the productivity of this suspension is 0.031 m of gas per 1 ml of suspension.
П р и м е р 2. Воздух, содержащий 0,18 обД диоксида серы, при 35 С барботируют через суспензию, приготовленную из 1 г известн ка, содержащего 96,78% карбоната кальци , и 9 мл сточной воды медеплавильногоExample 2. Air containing 0.18 OBD of sulfur dioxide at 35 ° C is bubbled through a slurry prepared from 1 g of limestone containing 96.78% calcium carbonate and 9 ml of copper smelter waste water.
5 five
0 0 0 0
производства, содержащей активные компоненты в следующем количестве, production containing active ingredients in the following quantity,
МедьCopper
Железо .Iron
КальцийCalcium
МагнийMagnesium
КалийPotassium
НатрийSodium
Сульфат-ионыSulphate ions
ХлорChlorine
СвинецLead
ЦинкZinc
0,5000,500
0,00010.0001
0,800.0.800.
0,020 . 0,010.0.020. 0,010.
3,0003,000
1,0001,000
0,8000,800
0,0060,006
0,0090,009
Степень очистки воздуха от диоксида серы составл ет 100%, удельный расход известн ка 2,9 г/м очищаемого воздуха, а производительность указанной суспензии 0,034 м газа на 1 мл суспензии.The degree of air purification from sulfur dioxide is 100%, the specific consumption of lime is 2.9 g / m of purified air, and the productivity of this suspension is 0.034 m of gas per 1 ml of suspension.
П р им ер 3. Воздух, содержащий 0,22 об.% диоксида серы, при 20°С барботируют через суспензию, приго- . товленную из 1 г известн ка, содер- 5 жащего 80,2% карбоната кальци , и 9 мл сточной воды медеплавильного производства, содержащей активные компоненты в следующем количестве, г/л: Example 3. Air containing 0.22% by volume of sulfur dioxide is bubbled at 20 ° C through the suspension, pod-. Production of 1 g of limestone containing 5% of 80.2% calcium carbonate, and 9 ml of copper production melt water containing the active ingredients in the following amount, g / l:
. Медь0,340. Copper0,340
Железо . 0,002Iron 0,002
Кальций. 0,560Calcium. 0.560
Магний0,340.Magnesium, 0.340.
Калий0,025Potassium0.025
Натрий1,400Sodium1,400
Сульфат-ионы 0,620Sulfate ions 0,620
Хлор0,420Chlorine0,420
СвинецО,.005Lead, .005
Цинк.0,009Zinc .0.009
Степень очистки воздуха от диоксида серы составл ет 100%, удельный расход известн ка 3,0 г/м очищаемого воздуха, а производительность указан- ной суспензии 0,033 м газа на 1 мл суспензии.The degree of air purification from sulfur dioxide is 100%, the specific consumption of lime is 3.0 g / m of purified air, and the productivity of the specified suspension is 0.033 m of gas per 1 ml of suspension.
В примерах 1-3 соотношение активных компонентов с использованием сточных вод медепл йвильного производства специально не выбиралось. Использовались те сточные воды, которые сбрасьюались в конкретный момент производственного процесса, т.е. степень очистки 100% получалась вне зависимости от количественного .соотношени активных компонентов.In examples 1-3, the ratio of the active components with the use of waste water from copper-copper production was not specifically chosen. We used those wastewaters that were dumped at a particular point in the production process, i.e. the degree of purification of 100% was obtained regardless of the quantitative ratio of the active components.
В таблице приведены сравнительные данные по степени очистки и расходу известн ка предлагаемого и известного способов.The table shows the comparative data on the degree of purification and lime consumption of the proposed and known methods.
Таким образом, предлагаемый способ позвол ет достичь полной очистки воздуха от диоксида серы (100%) и снизить расход известн ка на 1 м очищаемого газа до 2,9-3,2 г/м газа против 5,3 г/м газа в известном способе . Кроме того, используютс отходы медеплавильного производства: сточные воды., с которыми тер етс медь, и отход щие газы серно- кислот- ного производства, с которыми тер етс сера, дл их взаимного обезвреживани . При этом указанные отходы концентрируютс в виде шлама отработан- ной суспензии и могут быть возвращены в технологический процесс электроплавки меди и производства серной кислоты с целью доизвлечени меди и серы.Thus, the proposed method allows to achieve complete purification of air from sulfur dioxide (100%) and reduce lime consumption per 1 m of gas to be purified to 2.9-3.2 g / m of gas compared to 5.3 g / m of gas in the known way. In addition, copper smelting waste is used: waste water, with which copper is lost, and sulfuric acid production waste gases, with which sulfur is lost, for their neutralization. At the same time, these wastes are concentrated in the form of sludge from the spent suspension and can be returned to the process of electrofusion of copper and the production of sulfuric acid in order to further extract copper and sulfur.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864096001A SU1386261A1 (en) | 1986-06-23 | 1986-06-23 | Method of cleaning air from sulphur dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864096001A SU1386261A1 (en) | 1986-06-23 | 1986-06-23 | Method of cleaning air from sulphur dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1386261A1 true SU1386261A1 (en) | 1988-04-07 |
Family
ID=21248444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864096001A SU1386261A1 (en) | 1986-06-23 | 1986-06-23 | Method of cleaning air from sulphur dioxide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1386261A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2123377C1 (en) * | 1993-01-21 | 1998-12-20 | АББ Флэкт Актиеболаг | Method of cleaning gases containing sulfur dioxide and device for its embodiment |
| RU2212928C1 (en) * | 2002-03-06 | 2003-09-27 | Чучалин Лев Климентьевич | Method of cleaning of effluent process gases from sulfur dioxide |
| RU2214857C1 (en) * | 2002-07-22 | 2003-10-27 | Общество с ограниченной ответственностью "Чистая Планета" | Method of removing sulfur dioxide from emission gases |
-
1986
- 1986-06-23 SU SU864096001A patent/SU1386261A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2123377C1 (en) * | 1993-01-21 | 1998-12-20 | АББ Флэкт Актиеболаг | Method of cleaning gases containing sulfur dioxide and device for its embodiment |
| RU2212928C1 (en) * | 2002-03-06 | 2003-09-27 | Чучалин Лев Климентьевич | Method of cleaning of effluent process gases from sulfur dioxide |
| RU2214857C1 (en) * | 2002-07-22 | 2003-10-27 | Общество с ограниченной ответственностью "Чистая Планета" | Method of removing sulfur dioxide from emission gases |
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