SU1604730A1 - Method of producing sulphur dioxide and portland cement clinker - Google Patents
Method of producing sulphur dioxide and portland cement clinker Download PDFInfo
- Publication number
- SU1604730A1 SU1604730A1 SU874303444A SU4303444A SU1604730A1 SU 1604730 A1 SU1604730 A1 SU 1604730A1 SU 874303444 A SU874303444 A SU 874303444A SU 4303444 A SU4303444 A SU 4303444A SU 1604730 A1 SU1604730 A1 SU 1604730A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phosphogypsum
- portland cement
- coal
- cement clinker
- sulphur dioxide
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000011398 Portland cement Substances 0.000 title claims abstract description 9
- 235000010269 sulphur dioxide Nutrition 0.000 title 1
- 239000004291 sulphur dioxide Substances 0.000 title 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000003245 coal Substances 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 239000003077 lignite Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002956 ash Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004157 plasmatron Methods 0.000 description 2
- 241000283707 Capra Species 0.000 description 1
- 229910020169 SiOa Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Изобретение относитс к термической переработке фосфогипса и углеродсодержащего топлива, может быть использовано в химической и строительной отрасл х промышленности и позвол ет упростить процесс. Способ получени сернистого ангидрида и портландцементного клинкера включает термохимическое разложение фосфогипса в продуктах сгорани подмосковного бурого угл при массовом соотношении фосфогипса и угл 1:(0,4 0,6) в техническом кислороде, вз том в стехиометрическом количестве к углю.The invention relates to the thermal processing of phosphogypsum and carbonaceous fuels, can be used in the chemical and construction industries, and allows you to simplify the process. The method for producing sulfur dioxide and Portland cement clinker includes the thermochemical decomposition of phosphogypsum in the combustion products of the Moscow-based brown coal at a mass ratio of phosphogypsum and coal 1: (0.4 0.6) in technical oxygen recovered in stoichiometric amount to coal.
Description
Изобретение относитс к способам термической переработки фосфогипса и углерод- содержащего топлива и может быть использовано в химической и строительной промышленности .The invention relates to methods for the thermal processing of phosphogypsum and carbon-containing fuels and can be used in the chemical and construction industries.
Целью изобретени вл етс упрощение процесса.The aim of the invention is to simplify the process.
Пример 1. 443 кг подмосковного бурого угл подают из порошкового питател в реактор, куда одновременного подают 326 м технического кислорода. Поджиг угольно-кислородной пылевзвеси осуществл ют с помощью плазмотрона. После установлени устойчивого горени плазмотрон отключают, а в продукты сгорани ввод т 1 т фосфогипса. В реакторе при средней температуре 1100-1200°С образуетс 532 кг портландцементного клинкера следующего состава, мас.%:СаО 61,8; ЗЮг 19,5; А12Оз 13; РеаОз 4,0; РгОз 0,8; 5Оз 0,9, и отход щие газы с содержанием SOa 27%. Продукты реакции далее направл ют в циклон, где тверда фаза отдел етс от газообразной.Example 1. 443 kg of Moscow-based brown coal is fed from a powder feeder to the reactor, where 326 m of technical oxygen are simultaneously fed. Ignition of carbon-oxygen dust suspension is carried out using a plasmatron. After the establishment of stable combustion, the plasmatron is shut off, and 1 ton of phosphogypsum is introduced into the combustion products. In the reactor at an average temperature of 1100-1200 ° C, 532 kg of portland cement clinker of the following composition is formed, wt.%: CaO 61.8; HF 19.5; A12Oz 13; ReaOz 4.0; PgOz 0.8; OO 0.9, and waste gases with an SOa content of 27%. The reaction products are then sent to a cyclone, where the solid phase is separated from the gas.
Полученный портландцементный клинкер имеет следующий минералогический состав, мас.%: трехкальциевый силикат (алит) ЗСаО- SiOa 45-50; двухкальциевый силикат (бемит) 2CaO-SiO220-25; трехкальциевый алюминат ЗСаО- АЬОз 12-14; четырех- кальциевый алюмоферит 4СаО- АЬОзХ ХРеаОз 10,5-12.The resulting Portland cement clinker has the following mineralogical composition, wt%: tricalcium silicate (alyt) 3CaO-SiOa 45-50; dicalcium silicate (boehmite) 2CaO-SiO220-25; tricalcium aluminate ZSaO-ABOz 12-14; four-calcium aluminoferit 4CaO-AOZX XPAoOz 10.5-12.
Пример 2. Способ осуществл ют в примере 1, только 1 т фосфогипса подают в продукты сгорани 594 кг подмосковного бурого угл в 440 м технического кислорода , соотношение фосфогипс: уголь составл ет .1:0,6. При этом получают 667 кг портландцементного клинкера следующего состава, мас.%: СаО 61,1; SiO2 19,5 ; А12Оз 13,6; Ее2Оз 4,0; Р2О5 1,1; SOa 0,7.Example 2. The method is carried out in example 1, only 1 ton of phosphogypsum serves 594 kg of brown coal near Moscow in 440 m of technical oxygen into the products of combustion, the ratio of phosphogypsum: coal is 1: 0.6. You get 667 kg of Portland cement clinker of the following composition, wt.%: CaO 61.1; SiO2 19.5; A12Oz 13.6; E2Oz 4.0; P2O5 1.1; SOa 0.7.
Пример 3. Способ осуществл ют как в примере 1, только 1 т фосфогипса подают в продукты сгорани 396 кг подмосковного угл в 291 м технического кислорода. При этом получают 578 кг портландцементного клинкера следующего состава, мас.%: СаОExample 3. The method is carried out as in Example 1, only 1 ton of phosphogypsum is fed into the combustion products of 396 kg of the Moscow region coal in 291 m of technical oxygen. You get 578 kg of Portland cement clinker of the following composition, wt.%: Cao
с: оc: o
NPNP
соwith
64,9; SiO2 18,3; АЬОз 11,0; РсзОз 4,0; Р2О5 0,6; SOs 0,6, и отход щие газы с содержанием SO2 27,8%. Соотношение фосфогипса и угл в этом примере составл ет 1:0,4.64.9; SiO2 18.3; ABOz 11.0; CsOZ 4,0; P2O5 0.6; SOs 0.6, and flue gases with an SO2 content of 27.8%. The ratio of phosphogypsum and coal in this example is 1: 0.4.
При увеличении массового количества подмосковного бурого угл к единице фосфогипса выше 0,6 имеет место несбалансированность между СаО и золой угл , что ведет к значительному ухудшению химико- минералогических характеристик портланд- цементного клинкера, в частности к увеличению глиноземистого модул до 4 при норме 1-3, к снижению коэффициента насы- ш,ени до 0,6 при норме 0,8-0,9.With an increase in the mass amount of Moscow-based brown coal to a phosphogypsum unit above 0.6, there is an imbalance between CaO and coal ash, which leads to a significant deterioration in the chemical and mineralogical characteristics of portland cement clinker, in particular, an increase in the alumina module to 4 at a rate of 1-3. , to the reduction of the coefficient of saturation, up to 0.6 at a rate of 0.8-0.9.
Снижение соотношени бурого угл к фосфогипсу ниже 0,4:1 приводит к тому, что процесс термического разложени фосфогипса не реализован.The decrease in the ratio of brown coal to phosphogypsum below 0.4: 1 leads to the fact that the process of thermal decomposition of phosphogypsum is not implemented.
Усредненный состав сухой массы подмосковного бурого угл и золы, мас.%: углерод 35,9; кислород 11,0; водород 2,8; азот 0,7; зольность 45,4; сера общ. 4,2. Зола имеет следующий состав, мае.: SiO2 47,0; А12Оз 32,2; Ре2Оз 6,2; СаО 5,1; MgO 0,4; ЗОз 3,8; Р2О5 5,3.The average composition of the dry mass of the Moscow region brown coal and ash, wt.%: Carbon 35.9; oxygen 11.0; hydrogen 2.8; nitrogen 0.7; ash content 45.4; sulfur total 4.2. Ash has the following composition, May .: SiO2 47.0; A12Oz 32.2; Pe2Oz 6.2; CaO 5.1; MgO 0.4; Goat 3.8; Р2О5 5.3.
Предлагаемый способ позвол ет значительно упростить процесс: в одну стадию (против трех стадий по известному способу) дает возможность получить одновременноThe proposed method allows to significantly simplify the process: in one stage (against three stages by a known method) it gives the opportunity to obtain simultaneously
сернистый газ и портландцементный клинкер без каких-либо дополнительных флюсований (исключаетс введение необходимых компонентов дл образовани клинкера в строго расчетных количествах оксидов алюмини железа, кремни ) за счет минеральной составл ющей бурого угл .sulfur dioxide and portland cement clinker without any additional fluxes (the introduction of the necessary components for the formation of clinker in strictly calculated amounts of aluminum oxides of iron, silicon is excluded) due to the mineral component of brown coal.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874303444A SU1604730A1 (en) | 1987-09-04 | 1987-09-04 | Method of producing sulphur dioxide and portland cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874303444A SU1604730A1 (en) | 1987-09-04 | 1987-09-04 | Method of producing sulphur dioxide and portland cement clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1604730A1 true SU1604730A1 (en) | 1990-11-07 |
Family
ID=21326768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874303444A SU1604730A1 (en) | 1987-09-04 | 1987-09-04 | Method of producing sulphur dioxide and portland cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1604730A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2296723C2 (en) * | 2005-06-27 | 2007-04-10 | Владимир Федорович Рассказов | Power-saving method of utilization of the calcium sulfates - the phosphogypsum and the sediments of the sewage disposal plants with production of the cement clinker and the sulfur dioxide gas for production of the sulfuric acid |
| CN100335406C (en) * | 2005-06-16 | 2007-09-05 | 什邡市鸿升化工有限公司 | Process for producing industrial sulfuric acid using phosphorus gypsum as raw material |
| RU2775992C2 (en) * | 2017-11-22 | 2022-07-12 | ОуСиПи СА | Method for phosphogypsum decomposition |
| US11845657B2 (en) | 2020-01-08 | 2023-12-19 | Thyssenkrupp Industrial Solutions Ag | Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production |
-
1987
- 1987-09-04 SU SU874303444A patent/SU1604730A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент JP № 48-30128 кл. С 04 В 31/00, 1973. * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335406C (en) * | 2005-06-16 | 2007-09-05 | 什邡市鸿升化工有限公司 | Process for producing industrial sulfuric acid using phosphorus gypsum as raw material |
| RU2296723C2 (en) * | 2005-06-27 | 2007-04-10 | Владимир Федорович Рассказов | Power-saving method of utilization of the calcium sulfates - the phosphogypsum and the sediments of the sewage disposal plants with production of the cement clinker and the sulfur dioxide gas for production of the sulfuric acid |
| RU2775992C2 (en) * | 2017-11-22 | 2022-07-12 | ОуСиПи СА | Method for phosphogypsum decomposition |
| RU2798658C1 (en) * | 2020-01-08 | 2023-06-23 | Тиссенкрупп Индастриал Солюшнз Аг | Method for producing phosphoric acid and calcium sulfate of a quality suitable for the process of obtaining clinker for commercial and industrial use of calcium sulfate |
| RU2800415C1 (en) * | 2020-01-08 | 2023-07-21 | Тиссенкрупп Индастриал Солюшнз Аг | Integrated method for producing sulphur dioxide suitable in quality for use in the process of sulphuric acid production from calcium sulphate/phosphogypsum produced in the process of phosphoric acid production |
| US11845657B2 (en) | 2020-01-08 | 2023-12-19 | Thyssenkrupp Industrial Solutions Ag | Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production |
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