RU1556525C - Method of preparing of unsaturated solid solution of sulfuric and/or carbonic acid anhydride in tetracalcium hydroaluminate - Google Patents
Method of preparing of unsaturated solid solution of sulfuric and/or carbonic acid anhydride in tetracalcium hydroaluminate Download PDFInfo
- Publication number
- RU1556525C RU1556525C SU4410265A RU1556525C RU 1556525 C RU1556525 C RU 1556525C SU 4410265 A SU4410265 A SU 4410265A RU 1556525 C RU1556525 C RU 1556525C
- Authority
- RU
- Russia
- Prior art keywords
- tetracalcium
- carbonic acid
- sulfuric
- solid solution
- hydroaluminate
- Prior art date
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- 238000000034 method Methods 0.000 title description 4
- 239000006104 solid solution Substances 0.000 title description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title description 2
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical compound OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 4
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000000920 calcium hydroxide Substances 0.000 claims abstract 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract 3
- 229910001388 sodium aluminate Inorganic materials 0.000 claims abstract 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims 1
- 239000003153 chemical reaction reagent Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 150000004645 aluminates Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 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
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
Изобретение относится к производству глинозема, в частности к получению твердого раствора ангидрида серной и/или угольной кислоты в четырехкальциевом гидроалюминате, который может быть использован для очистки щелочно-алюминатных растворов от кремния. The invention relates to the production of alumina, in particular to the production of a solid solution of sulfuric and / or carbonic anhydride in tetra-calcium hydroaluminate, which can be used to purify silicon from alkaline aluminate solutions.
Цель изобретения - повышение его обескремнивающей активности. The purpose of the invention is to increase its desilicon activity.
1 л алюминатного раствора состава, г/л: Аl2O3 75; Na2Oк 74,8; Na2O411,5; SiO2 0,01, взятого при температуре 90оС, охлаждают в вакуум-испарителе со скоростью охлаждения 28оС/мин.1 l of aluminate solution composition, g / l: Al 2 O 3 75; Na 2 O to 74.8; Na 2 O 4 11.5; 0.01 SiO 2, taken at 90 ° C, cooled in a vacuum evaporator at a cooling rate of 28 C / min.
Охлажденный алюминатный раствор смешивают с известным молоком с концентрацией СаОакт 160 г/л, предварительно охлажденным в вакуум-испарителе. В пульпу вводят соль щелочного металла или их смесь. Полученную пульпу перемешивают. Суспензию без разделения жидкой и твердой фаз направляют на обескремнивание алюминатного раствора.The cooled aluminate solution is mixed with known milk with a concentration of CaO act 160 g / l, pre-cooled in a vacuum evaporator. An alkali metal salt or mixture thereof is added to the pulp. The resulting pulp is mixed. The suspension without separation of the liquid and solid phases is directed to the desalination of the aluminate solution.
При оценке обескремнивающей способности препарата исходный алюминатный раствор имеет состав, г/л: Аl2О3 83,5; Na2O4 14,2; αk 1,45, Mk 425 ед.When evaluating the desiliconizing ability of the drug, the initial aluminate solution has the composition, g / l: Al 2 O 3 83.5; Na 2 O 4 14.2; α k 1.45, M k 425 units
Условия опытов по обескремниванию: температура 90оС, продолжительность процесса 120 мин.The conditions of the experiments on desiliconization: temperature 90 about C, the duration of the process 120 minutes
В табл. 1 приведена зависимость степени обескремнивания от отношения компонентов. В табл.2 приведена зависимость степени обескремнивания от температуры процесса. In the table. Figure 1 shows the dependence of the degree of desiliconization on the ratio of components. Table 2 shows the dependence of the degree of desiliconization on the process temperature.
Из таблиц следует, что оптимальное соотношение компонентов для синтеза ангидридов твердого раствора в четырехкальциевом гидроалюминате достигается при СаО : Al2О3 ≃ 1,5 и вакуумном охлаждении реагентов до≈ 50оС (при этом насыщение препарата по СО2 составляет 0,45).From the tables it follows that the optimum ratio of the components for the synthesis in solid solution anhydrides tetracalcium hydroaluminates achieved when CaO: Al 2 O 3 ≃ 1,5 vacuum and cooling the reactants do≈ 50 ° C (the saturation preparation of CO 2 is 0.45) .
Данный способ позволяет повысить обескремнивающую активность твердого раствора ангидрида серной и/или угольной кислоты в четырехкальциевом гидроалюминате. This method allows to increase the desilicon activity of a solid solution of sulfuric acid and / or carbonic acid in tetra-calcium hydroaluminate.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4410265 RU1556525C (en) | 1988-04-14 | 1988-04-14 | Method of preparing of unsaturated solid solution of sulfuric and/or carbonic acid anhydride in tetracalcium hydroaluminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4410265 RU1556525C (en) | 1988-04-14 | 1988-04-14 | Method of preparing of unsaturated solid solution of sulfuric and/or carbonic acid anhydride in tetracalcium hydroaluminate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1556525C true RU1556525C (en) | 1994-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4410265 RU1556525C (en) | 1988-04-14 | 1988-04-14 | Method of preparing of unsaturated solid solution of sulfuric and/or carbonic acid anhydride in tetracalcium hydroaluminate |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1556525C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2195434C2 (en) * | 2000-11-08 | 2002-12-27 | Санкт-Петербургский государственный университет | Coagulant for cleaning natural and waste water, method of production and use of such coagulant |
| RU2560412C2 (en) * | 2013-11-15 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Method of aluminate solutions desiliconisation |
-
1988
- 1988-04-14 RU SU4410265 patent/RU1556525C/en active
Non-Patent Citations (2)
| Title |
|---|
| Авторское свидетельство СССР N 388499, кл. C 01F 7/26. * |
| Авторское свидетельство СССР N 621170, кл. C 01F 7/16, 1976. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2195434C2 (en) * | 2000-11-08 | 2002-12-27 | Санкт-Петербургский государственный университет | Coagulant for cleaning natural and waste water, method of production and use of such coagulant |
| RU2560412C2 (en) * | 2013-11-15 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Method of aluminate solutions desiliconisation |
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