SU1680631A1 - Method for obtaining lead oxoacetate - Google Patents
Method for obtaining lead oxoacetate Download PDFInfo
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- SU1680631A1 SU1680631A1 SU884605491A SU4605491A SU1680631A1 SU 1680631 A1 SU1680631 A1 SU 1680631A1 SU 884605491 A SU884605491 A SU 884605491A SU 4605491 A SU4605491 A SU 4605491A SU 1680631 A1 SU1680631 A1 SU 1680631A1
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- lead
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- oxobromide
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Abstract
Изобретение относитс к способам получени оксобромида свинца. Целью изобретени вл етс упрощение процесса, снижение энергозатрат и увеличение выхода целевого продукта. В соответствии с изобретением оксобромид свинца получают путем обработки оксида свинца раствором бромида аммони при мол рном соотношении 1:1,5-2 в среде диметилформамида при 50°С и перемешивании в течение 5 ч. Выход продукта составл ет 85-86%, содержание основного вещества в продукте 99.8%. 1 табл.This invention relates to methods for producing lead oxobromide. The aim of the invention is to simplify the process, reduce energy consumption and increase the yield of the target product. In accordance with the invention, lead oxobromide is obtained by treating lead oxide with ammonium bromide solution at a molar ratio of 1: 1.5-2 in dimethylformamide at 50 ° C and stirring for 5 hours. The product yield is 85-86%, the content of the main substance in the product is 99.8%. 1 tab.
Description
Изобретение относитс к способам получени солей свинца, в частности оксобромида свинца, которые нашли широкое применение в промышленности неорганического синтеза, в качестве стабилизатора при производстве пластмасс, а также дл производства лаков,красок и пигментов.The invention relates to methods for producing lead salts, in particular lead oxobromide, which are widely used in the industry of inorganic synthesis, as a stabilizer in the production of plastics, as well as for the production of varnishes, paints and pigments.
Цель изобретени - упрощение процесса , снижение энергозатрат и увеличение выхода целевого продукта.The purpose of the invention is to simplify the process, reduce energy consumption and increase the yield of the target product.
В соответствии с изобретением оксобромид свинца получают обработкой оксида свинца раствором бромида аммони при мол рном соотношении 1:1,5-2 соответственно в среде диметилформамида (ДМФА). Взаимодействие исходных компонентов по предлагаемому способу идет и при обычной температуре, однако нагревание реакционной смеси увеличивает скорость процесса. Выбор температуры процесса (50°С) сделан с учетом свойств используемых растворителей и технических характеристик используемого оборудовани .In accordance with the invention, lead oxobromide is obtained by treating lead oxide with ammonium bromide solution at a molar ratio of 1: 1.5-2, respectively, in dimethylformamide (DMF). The interaction of the source components of the proposed method is at a normal temperature, however, the heating of the reaction mixture increases the speed of the process. The choice of process temperature (50 ° C) was made taking into account the properties of the solvents used and the technical characteristics of the equipment used.
Пример, В реактор внос т 2,23 г (0,01 моль} оксида свинца и 1,94 г (0,02 моль)Example: 2.23 g (0.01 mol} of lead oxide and 1.94 g (0.02 mol) are added to the reactor
бромида аммони (мол рное соотношение 1:2), приливают 50 мл ДМФА и нагревают при 50°С и посто нном перемешивании в течение 5 ч. Отфильтровывают бесцветный осадок. Выход 2,54 (86%).Ammonium bromide (molar ratio 1: 2), poured 50 ml of DMF and heated at 50 ° C and constant stirring for 5 hours. The colorless precipitate is filtered off. Yield 2.54 (86%).
Найдено,%:РЬ 71,8; Вг 22,1.Found,%: Pb 71.8; Вг 22.1.
Вычислено,%: РЬ 70; Вг 21,07.Calculated,%: Pb 70; Br 21.07.
Результаты других примеров приведены в таблице.The results of other examples are shown in the table.
Как видно из данных примеров 1-4, дл получени оксобромида свинца оптимальным соотношением исходных компонентов вл етс 1:1,5-2. При соотношении меньшем , чем 1:1,5, продукт загр знен оксидом свинца, а увеличение соотношени исходных больше чем 1:2 приводит к загр знению целевого продукта бромида свинца.As can be seen from the data of examples 1-4, to obtain lead oxobromide, the optimum ratio of the starting components is 1: 1.5-2. When the ratio is less than 1: 1.5, the product is contaminated with lead oxide, and an increase in the ratio of the starting materials to more than 1: 2 leads to contamination of the target product of lead bromide.
Как видно из данных примеров 5-7, ди- метилсульфоксид (ДМСО), ацетонитрил, метанол непригодны дл получени оксобромида свинца предлагаемым способом , так как в их среде не достигаетс полного превращени оксида свинца, который в конечном результате загр зн ет целевой продукт.As can be seen from the data of examples 5-7, dimethyl sulfoxide (DMSO), acetonitrile, methanol are unsuitable for obtaining lead oxobromide by the proposed method, since in their environment, complete conversion of lead oxide is not achieved, which ultimately contaminates the target product.
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Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4605491L SU1680632A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxobromide |
SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
SU884605491A SU1680631A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxoacetate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884605491A SU1680631A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxoacetate |
Publications (1)
Publication Number | Publication Date |
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SU1680631A1 true SU1680631A1 (en) | 1991-09-30 |
Family
ID=21409431
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884605491A SU1680631A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxoacetate |
SU4605491L SU1680632A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxobromide |
SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4605491L SU1680632A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxobromide |
SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
Country Status (1)
Country | Link |
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SU (3) | SU1680631A1 (en) |
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1988
- 1988-11-14 SU SU884605491A patent/SU1680631A1/en active
- 1988-11-14 SU SU4605491L patent/SU1680632A1/en active
- 1988-11-14 SU SU4605491K patent/SU1680633A1/en active
Non-Patent Citations (1)
Title |
---|
Lamb. F.W, Nelbylskl LM. - I. Amer. Chem. Cos. 1953, 755, № 3. 511-518. * |
Also Published As
Publication number | Publication date |
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SU1680632A1 (en) | 1991-09-30 |
SU1680633A1 (en) | 1991-09-30 |
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