SU330732A1 - METHOD FOR PRODUCING MAGNESIUM ALUMINATE - Google Patents
METHOD FOR PRODUCING MAGNESIUM ALUMINATEInfo
- Publication number
- SU330732A1 SU330732A1 SU1460014A SU1460014A SU330732A1 SU 330732 A1 SU330732 A1 SU 330732A1 SU 1460014 A SU1460014 A SU 1460014A SU 1460014 A SU1460014 A SU 1460014A SU 330732 A1 SU330732 A1 SU 330732A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnesium
- magnesium aluminate
- aluminum
- producing magnesium
- temperature
- Prior art date
Links
- 229910052749 magnesium Inorganic materials 0.000 title description 9
- 239000011777 magnesium Substances 0.000 title description 9
- -1 MAGNESIUM ALUMINATE Chemical class 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000000034 method Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- 235000012245 magnesium oxide Nutrition 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 229910026161 MgAl2O4 Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical class [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- QUSQOXBLTWQHMU-UHFFFAOYSA-H dialuminum hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3] QUSQOXBLTWQHMU-UHFFFAOYSA-H 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/162—Magnesium aluminates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
1 one
Изобретение относитс к производству алюмината магни .This invention relates to the production of magnesium aluminate.
Благородна шпинель-алюминат магни MgAUOi-находит применение в производстве оснований дл микросхем, резисторов, изол торов и огнеупоров. Однако ее широкому применению мешают высока температура синтеза (выше 1350°С) из механических смесей окислов алюмини и магни , загр знение примес ми во врем помола, нарушение стехиометрии получаемого продукта.Noble magnesium spinel aluminate MgAUOi-finds application in the manufacture of bases for microcircuits, resistors, insulators and refractories. However, high synthesis temperature (above 1350 ° C) from mechanical mixtures of aluminum and magnesium oxides, contamination with impurities during grinding, and violation of the stoichiometry of the resulting product interfere with its wide application.
Известен способ получени алюмината магни путем смешени растворов солей алюмини и магни с последуюш,ей их термообработкой , основанный на совместном осаждении алюмини и магни из водных растворов, а также на выделении аммиаком из растворов нитратов магни и алюмини гидроокиси алюмини . Поскольку этот осадок захватывает из раствора нитрат магни неполностью, следует упаривать образовавшуюс суспензию при 80°С. Полученный осадок, состо щий из смеси аморфной гидроокиси алюмини и кристаллов нитратов магни и аммони , подвергают прокалке . Так как полный синтез MgAUOi проходит при температуре выше 1300°С, предлагаетс проводить прокалку при i 1500°C, а несв занную в соединение с алюминием окись магни (2%) извлекать 10%-ным раствором уксусной кислоты.A known method of producing magnesium aluminate by mixing solutions of aluminum and magnesium salts with the subsequent heat treatment of them, based on the combined precipitation of aluminum and magnesium from aqueous solutions, as well as on the release of ammonia from solutions of magnesium nitrate and aluminum hydroxide aluminum. Since this precipitate captures magnesium from nitrate incompletely, the resulting suspension should be evaporated at 80 ° C. The resulting precipitate, consisting of a mixture of amorphous aluminum hydroxide and crystals of magnesium and ammonium nitrates, is calcined. Since the complete synthesis of MgAUOi takes place at temperatures above 1300 ° C, it is proposed to carry out calcination at 1500 ° C, and magnesium oxide not bound to the compound with aluminum (2%) should be extracted with 10% acetic acid solution.
Этот метод довольно громоздок и к тому же приводит к получению нечистого соединени MgAl204, а его твердого раствора с окисью алюмини , причем необходим размол продукта , образовавшегос после прокаливани , что приводит к его загр знению.This method is rather cumbersome and, moreover, results in an impure compound MgAl204, and its solid solution with alumina, and the grinding of the product formed after calcination is necessary, which leads to its contamination.
С целью упрощени процесса и повышени качества продукта по предлагаемому способу смесь солей сначала обезвол пвают при температуре около 500°С.In order to simplify the process and improve the quality of the product according to the proposed method, the mixture of salts is first defoliated at a temperature of about 500 ° C.
При м е р. Дл получени благородной шпинели готов т эквимолекул рные смеси растворов магни и алюмини , подают на распылительпую сушилку с температурой 500°С и высушенный продукт подвергают термическому разложению при температуре 1000°С. Готовый продукт представл ет собой белый кристаллический порошок со структурой шпимели .An example. To obtain a noble spinel, equimolecular mixtures of magnesium and aluminum solutions are prepared, fed to a spray dryer with a temperature of 500 ° C, and the dried product is subjected to thermal decomposition at a temperature of 1000 ° C. The finished product is a white crystalline powder with a spumel structure.
Содержание в ней примесей Fe, Si, Си, Ni, Na, К и др. при получении из солей квалификации «ч не превышает 0,005-0,01% каждого элемента.The content of impurities of Fe, Si, Cu, Ni, Na, K, etc. in it when receiving from salts of qualification “h does not exceed 0.005-0.01% of each element.
Такой метод дает возможность получать порошки с удельной поверхностью 27000 , не требуюшие помола. Их состав, свойства и степень синтеза хорошо воспроизвод тс от партии к партии, что видно из приведеннойThis method makes it possible to obtain powders with a specific surface of 27,000, which do not require grinding. Their composition, properties and degree of synthesis are well reproduced from batch to batch, as can be seen from
Отклонени колеблютс в пределах ошибок анализа.Deviations fluctuate within error analysis.
Все это приводит к улучшению производства керамики. Так, за счет более полного синтеза при невысокой температуре получени гомогенного реакционноспособного соединени температура спекани керамики снижаетс на 50-100°С и улучшаютс ее электрофизические характеристики.All this leads to an improvement in the production of ceramics. Thus, due to a more complete synthesis at a low temperature for obtaining a homogeneous reactive compound, the sintering temperature of ceramics is reduced by 50-100 ° C and its electrophysical characteristics are improved.
Предмет изобретени Subject invention
Способ получени алюмината магни путем смешени растворов солей алюмини и магни с последуюшей их термообработкой, отличающийс тем, что, с целью упрощени процесса и повышени качества продукта, смесь солей сначала обезвоживают при температуре около 500°С.The method of producing magnesium aluminate by mixing solutions of aluminum and magnesium salts with their subsequent heat treatment, characterized in that, in order to simplify the process and improve the quality of the product, the mixture of salts is first dehydrated at a temperature of about 500 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1460014A SU330732A1 (en) | 1970-07-20 | 1970-07-20 | METHOD FOR PRODUCING MAGNESIUM ALUMINATE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1460014A SU330732A1 (en) | 1970-07-20 | 1970-07-20 | METHOD FOR PRODUCING MAGNESIUM ALUMINATE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU330732A1 true SU330732A1 (en) | 1972-12-28 |
Family
ID=20455292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1460014A SU330732A1 (en) | 1970-07-20 | 1970-07-20 | METHOD FOR PRODUCING MAGNESIUM ALUMINATE |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU330732A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2359913C1 (en) * | 2008-02-08 | 2009-06-27 | Геннадий Гильфанович Галимов | Substance on basis of magnesium hydroxoaluminate, containing coprecipitated aluminium hydroxide, and way of its obtaining |
| RU2392225C2 (en) * | 2008-07-04 | 2010-06-20 | Геннадий Гильфанович Галимов | Composition of magnesium hydroxoluminate and aluminium hydroxide and method of obtainment thereof |
| RU2457181C1 (en) * | 2011-04-27 | 2012-07-27 | Учреждение Российской академии наук Институт химии твердого тела и механохимии Сибирского отделения РАН (ИХТТМ СО РАН) | Method of producing fine magnesium aluminate |
| RU2464227C1 (en) * | 2011-04-21 | 2012-10-20 | Геннадий Гильфанович Галимов | Magnesium chloride hydroxoaluminate-based composition containing magnesium hydroxide as therapeutic preparation |
| RU2719866C2 (en) * | 2015-09-09 | 2020-04-23 | СЭСОЛ (ЮЭсЭй) КОРПОРЕЙШН | Method of producing aluminum-magnesia spinels |
-
1970
- 1970-07-20 SU SU1460014A patent/SU330732A1/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2359913C1 (en) * | 2008-02-08 | 2009-06-27 | Геннадий Гильфанович Галимов | Substance on basis of magnesium hydroxoaluminate, containing coprecipitated aluminium hydroxide, and way of its obtaining |
| RU2392225C2 (en) * | 2008-07-04 | 2010-06-20 | Геннадий Гильфанович Галимов | Composition of magnesium hydroxoluminate and aluminium hydroxide and method of obtainment thereof |
| RU2464227C1 (en) * | 2011-04-21 | 2012-10-20 | Геннадий Гильфанович Галимов | Magnesium chloride hydroxoaluminate-based composition containing magnesium hydroxide as therapeutic preparation |
| RU2457181C1 (en) * | 2011-04-27 | 2012-07-27 | Учреждение Российской академии наук Институт химии твердого тела и механохимии Сибирского отделения РАН (ИХТТМ СО РАН) | Method of producing fine magnesium aluminate |
| RU2719866C2 (en) * | 2015-09-09 | 2020-04-23 | СЭСОЛ (ЮЭсЭй) КОРПОРЕЙШН | Method of producing aluminum-magnesia spinels |
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