SU159809A1 - - Google Patents
Info
- Publication number
- SU159809A1 SU159809A1 SU795026A SU795026A SU159809A1 SU 159809 A1 SU159809 A1 SU 159809A1 SU 795026 A SU795026 A SU 795026A SU 795026 A SU795026 A SU 795026A SU 159809 A1 SU159809 A1 SU 159809A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- solution
- titanium
- cooled
- lead
- hydrogen peroxide
- Prior art date
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- XJDNKRIXUMDJCW-UHFFFAOYSA-J Titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- -1 titanium peroxide compound Chemical class 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L Barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N Barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- RLJMLMKIBZAXJO-UHFFFAOYSA-N Lead(II) nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J Titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Description
Титанаты щелочноземельных металлов и титанат свинца обладают сегнетоэлектрическими , пьезоэлектрическими и полунроводниковыми свойствами. Большое значение имеет чистота этих продуктов, котора зависит от методО|В получени . Обычно титанаты получают путем сплавлени с окислами, щелочами и карбонатами соответствующих металлов. Однако такие титанаты пе однородны по своим физическим и хи.мическим свойствам. Предложенный способ заключаетс в том, что раствор четыреххлористого титана смешивают с перекисью водорода, охлаждают до 10-15°С и добавл ют аммиак и раствор нитрата или хлорида. Затем отдел ют осадок, промывают, сушат и прокаливают при 800- 1000°С. Предлагаемый метод позвол ет достаточно просто получать твердые растворы титанатов металлов в виде мелкокристаллических порошков высокой степени чистоты. Кроме того, удаетс избежать затруднений, св занных с летучестью соединений свинца.Alkaline-earth titanates and lead titanate possess ferroelectric, piezoelectric, and semiconductor properties. Of great importance is the purity of these products, which depends on the method of | In obtaining. Typically, titanates are obtained by fusing with oxides, alkalis, and carbonates of the corresponding metals. However, such titanates are not homogeneous in their physical and chemical properties. The proposed method consists in mixing the titanium tetrachloride solution with hydrogen peroxide, cooling it to 10-15 ° C, and adding ammonia and a solution of nitrate or chloride. Then the precipitate is separated, washed, dried and calcined at 800-1000 ° C. The proposed method makes it quite easy to obtain solid solutions of metal titanates in the form of high-purity fine-crystalline powders. In addition, it is possible to avoid the difficulties associated with the volatility of lead compounds.
Пример I. Получение титаната бари . К водному раствору, содержащему 0,5 моль четыреххлористого титана, прибавл ют 2-5-кратный избыток перекиси водорода (по отношению к концентрации титана). Раствор перемещивают и охлаждают до 10- 15°С. Полученный раствор медленно прибавл ют к охлажденному водному раствору аммиака (температура 25-30°С). К охлажденному раствору перекисного соединени титана постепенно приливают раствор, содержащийExample I. Obtaining barium titanate. A 2-5-fold excess of hydrogen peroxide (relative to the concentration of titanium) is added to an aqueous solution containing 0.5 mol of titanium tetrachloride. The solution is moved and cooled to 10-15 ° C. The resulting solution was slowly added to a cooled aqueous ammonia solution (temperature 25-30 ° C). To the cooled solution of the titanium peroxide compound is gradually poured a solution containing
0,5 моль хлористого бари . Получаемый осадок перекисного соединени бари с титаном отфильтровывают, промывают водой, сушат и прокаливают при 800-1000°С.0.5 mole barium chloride. The resulting precipitate of barium titanium peroxide is filtered off, washed with water, dried and calcined at 800-1000 ° C.
Пример 2. Получение титаната свинца. Вещество получают из раствора, содержащего 0,5 моль тетрахлорида титана, осаждают водным раствором гидроокись титана , которую отфильтровывают и промывают водой. Затем раствор ют в аммиачном растворе перекиси водорода, содержаще.м 2,3 моль перекиси водорода.Example 2. Getting lead titanate. The substance is obtained from a solution containing 0.5 mol of titanium tetrachloride, precipitated with an aqueous solution of titanium hydroxide, which is filtered and washed with water. It is then dissolved in an ammonia solution of hydrogen peroxide containing 2.3 moles of hydrogen peroxide.
Раствор охлаждают до 10-15°С. К охлажденному раствору при перемешивании приливают 0,5 моль водного раствора азотнокислого свинца. Выпадающий при этом мелкодисперсный осадок перекисного соединени титана и свинца отфильтровывают, промывают, сушать и прокаливают при 800°С.The solution is cooled to 10-15 ° C. With stirring, 0.5 mol of an aqueous solution of lead nitrate is added to the cooled solution. A fine precipitated precipitate of the peroxide compound of titanium and lead is filtered, washed, dried and calcined at 800 ° C.
Предмет изобретени Subject invention
Способ получени титанатов металлов, например бари , свинца, отличающийс тем, что, с целью получени мелкокристаллических порощков высокой степени чистоты, раствор четыреххлористого титана смешивают с перекисью водорода, охлаждают до 10- 15°С и добавл ют аммиак и раствор нитрата или хлорида соответствующего металла с последующем отделением полученного осадка, его промывкой, сущкой и прокаливанием при 800-1000°С.A method of producing metal titanates, such as barium, lead, characterized in that, in order to obtain crystalline powders of high purity, a solution of titanium tetrachloride is mixed with hydrogen peroxide, cooled to 10-15 ° C, and ammonia and the corresponding metal nitrate with the subsequent separation of the precipitate obtained, washing, drying and calcination at 800-1000 ° C.
Publications (1)
Publication Number | Publication Date |
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SU159809A1 true SU159809A1 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2433279A1 (en) * | 1974-03-13 | 1975-09-18 | Murata Manufacturing Co | METHOD OF MANUFACTURING TITANATES |
US4061583A (en) * | 1974-03-13 | 1977-12-06 | Murata Manufacturing Co., Ltd. | Preparation of titanates |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2433279A1 (en) * | 1974-03-13 | 1975-09-18 | Murata Manufacturing Co | METHOD OF MANUFACTURING TITANATES |
US4061583A (en) * | 1974-03-13 | 1977-12-06 | Murata Manufacturing Co., Ltd. | Preparation of titanates |
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