SU194778A1 - METHOD OF OBTAINING SULFURIC ACID - Google Patents
METHOD OF OBTAINING SULFURIC ACIDInfo
- Publication number
- SU194778A1 SU194778A1 SU1052189A SU1052189A SU194778A1 SU 194778 A1 SU194778 A1 SU 194778A1 SU 1052189 A SU1052189 A SU 1052189A SU 1052189 A SU1052189 A SU 1052189A SU 194778 A1 SU194778 A1 SU 194778A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulfuric acid
- water vapor
- carried out
- anhydride
- sulfuric
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims description 19
- AKEJUJNQAAGONA-UHFFFAOYSA-N Sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 239000011669 selenium Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 4
- 235000010269 sulphur dioxide Nutrition 0.000 claims 2
- 150000007513 acids Chemical class 0.000 claims 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims 1
- 229910052785 arsenic Inorganic materials 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- 230000001590 oxidative Effects 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000687904 Soa Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 230000000607 poisoning Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Description
Известно получение серной кислоты контактным методом путем обжига сульфидных руд, содержащих мышь к и фтор, с последующей подачей обжигового таза Непосредственно В контактный аппарат дл окислени сернистого ангидрида и дальнейшей абсорбцией полученного серного ангидрида раствором серной кислоты.It is known to obtain sulfuric acid by contact method by roasting sulphide ores containing mouse and fluorine, followed by pelvic roasting directly to the contact apparatus for the oxidation of sulfur dioxide and further absorption of the sulfur dioxide obtained by sulfuric acid solution.
Этим способом не предусмотрена защита контактной массы от отравлени фтористыми соединени ми и извлечение селена из проконтактировавшей газовой смеси.This method does not protect the contact mass from poisoning by fluoride compounds and extract selenium from the contacting gas mixture.
Предложенный способ предотвращает отравление контактной массы фтористыми соединени ми . Дл этого в обжиговый газ перед контактированием ввод т пары воды в количестве не менее 2 об. % при температуре выше 300°С. Сырье обжигают ;в печи во взвещенном состо нии при температуре 650 - 750°С дл колчедана и 850-1000°С дл цинковых концентратов с последующей очисткой от пыли в циклонах и на электрофильтрах. Очищенный газ с содержанием пыли до 50 мг/нмз и парами воды до 2 об. % при температуре 300-450С Подают в контактное отделение дл окислени -сернистого ангидрида.The proposed method prevents the contact mass from being contaminated with fluoride compounds. For this purpose, water vapor in an amount of at least 2 vol. % at temperatures above 300 ° C. The raw materials are burned; in a furnace in a state of curing at a temperature of 650–750 ° C for pyrites and 850–1000 ° C for zinc concentrates, followed by cleaning from dust in cyclones and on electrostatic precipitators. Purified gas with dust content up to 50 mg / Nm and water vapor up to 2 vol. % at a temperature of 300-450 ° C. Is fed to the contact compartment for the oxidation of sulfuric anhydride.
целью газ привод т во взаимодействие с концентрированной 93-98%-ной серной кислотой, имею 1;ей температуру 190-260°С.The goal is that the gas is reacted with concentrated 93-98% sulfuric acid, I have 1. Its temperature is 190-260 ° C.
После селенового аппарата газ с температурой 200-270С направл ют в отделение конденсации. Конденсацию провод т в бащне с провальными тарелками, орошаемой водой или разбавленной серной кислотой, с температурой газа 90-450С как сухого, так и содержащего до 15% -паров воды и более 1,5% серного ангидрида с температурой вытекающей кислоты от 150°С до температуры кипени преимущественно в интервале температурAfter the selenium apparatus the gas with a temperature of 200-270 ° C is sent to the condensation section. Condensation is carried out in a bachne with failed plates, irrigated water or dilute sulfuric acid, with a gas temperature of 90-450 ° C both dry and containing up to 15% water vapor and more than 1.5% sulfuric anhydride with a temperature of acid flowing from 150 ° C to boiling point mainly in the temperature range
180-240°С с последующей фильтрацией газа в стекловолокнистом сетчатом фильтре.180-240 ° C, followed by gas filtration in a glass fiber mesh filter.
Описываемый способ может быть оформлен также по схеме двойного контактировани .The described method can also be arranged according to the double contact scheme.
По этой схеме обжиговый газ с содержанием 9% SOa направл ют на первую стадию контактировани в двухслойный контактный аппарат со взвешенными сло ми катализатора, затем в отделение конденсации.According to this scheme, calcining gas with a content of 9% SOa is directed to the first stage of contacting the two-layer contact apparatus with suspended catalyst beds, then to the condensation compartment.
Освобожденную от серного ангидрида газовую смесь подают на вторую стадию контактировани в аппарат со стационарными сло ми с последующей, конденсацией. При работе по этой схеме общий процент контактироваПредмет изобрете-ни The gas mixture freed from sulfuric anhydride is fed to the second stage of contacting the apparatus with stationary layers, followed by condensation. When working on this scheme, the total percentage of contact with the Invention
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1967N0029967 DE1667642C3 (en) | 1966-02-09 | 1967-02-07 | Contact process for the production of sulfuric acid |
BE693786D BE693786A (en) | 1966-02-09 | 1967-02-08 | |
DE19671667643 DE1667643B2 (en) | 1966-02-09 | 1967-02-08 | Contact process for the production of sulfuric acid from raw material containing selenium |
FR1583608D FR1583608A (en) | 1966-02-09 | 1967-02-08 | |
GB626467A GB1128435A (en) | 1966-02-09 | 1967-02-09 | Contact process of producing sulphuric acid |
GB626367A GB1139285A (en) | 1966-02-09 | 1967-02-09 | Contact method of producing sulphuric acid |
JP849167A JPS4932704B1 (en) | 1966-02-09 | 1967-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU194778A1 true SU194778A1 (en) |
Family
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