SU1680631A1 - Method for obtaining lead oxoacetate - Google Patents
Method for obtaining lead oxoacetate Download PDFInfo
- Publication number
- 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
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lead
- yield
- oxobromide
- target product
- increase
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 title 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910000464 lead oxide Inorganic materials 0.000 claims abstract description 6
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005265 energy consumption Methods 0.000 claims abstract description 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims abstract 2
- 230000003993 interaction Effects 0.000 claims description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 2
- 229910052794 bromium Inorganic materials 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- ZASWJUOMEGBQCQ-UHFFFAOYSA-L dibromolead Chemical compound Br[Pb]Br ZASWJUOMEGBQCQ-UHFFFAOYSA-L 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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 |
| SU884605491A SU1680631A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxoacetate |
| SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
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 |
|---|---|
| SU1680631A1 true SU1680631A1 (en) | 1991-09-30 |
Family
ID=21409431
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
| SU4605491L SU1680632A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxobromide |
| SU884605491A SU1680631A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxoacetate |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4605491K SU1680633A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxonitrate |
| SU4605491L SU1680632A1 (en) | 1988-11-14 | 1988-11-14 | Method for obtaining lead oxobromide |
Country Status (1)
| Country | Link |
|---|---|
| SU (3) | SU1680633A1 (en) |
-
1988
- 1988-11-14 SU SU4605491K patent/SU1680633A1/en active
- 1988-11-14 SU SU4605491L patent/SU1680632A1/en active
- 1988-11-14 SU SU884605491A patent/SU1680631A1/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 |
|---|---|
| SU1680632A1 (en) | 1991-09-30 |
| SU1680633A1 (en) | 1991-09-30 |
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