SU121450A1 - The method of obtaining nitrilotriacetic acid - Google Patents
The method of obtaining nitrilotriacetic acidInfo
- Publication number
- SU121450A1 SU121450A1 SU605656A SU605656A SU121450A1 SU 121450 A1 SU121450 A1 SU 121450A1 SU 605656 A SU605656 A SU 605656A SU 605656 A SU605656 A SU 605656A SU 121450 A1 SU121450 A1 SU 121450A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining
- nitrilotriacetic acid
- acid
- reagents
- ammonium carbonate
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Нитрилотриуксусна кислота, известна также под названием «комплексон I, примен етс в качестве реактива в аналитической химии и дл разделени цериевой групны редкоземельных элементов как один из наиболее эффективных сорбентов.Nitrilotriacetic acid, also known as "complexone I," is used as a reagent in analytical chemistry and for the separation of the cerium group of rare-earth elements as one of the most effective sorbents.
В литературе описан одностадийный способ получени указанной кислоты, заключаюи1ийс во взаимодействии монохлоруксусной кислоты с углекислым аммоние. в водной среде в присутствии едкой щелочи. При этом процесс ведут при нагревашш с загрузкой реагентов по част м, что усложн ет работу в производственных услови х.The literature describes a one-step process for the preparation of this acid, concluded in the interaction of monochloroacetic acid with ammonium carbonate. in aqueous medium in the presence of caustic alkali. In this case, the process is carried out at heating with the loading of reagents in parts, which complicates the work under production conditions.
Дл устранени указанного недостатка предлагаетс вводить все реагенты в реактор в один прием одновременно, что позвол ет ускорить процесс и проводить его без подвода тепла извне.To eliminate this drawback, it is proposed to introduce all reagents into the reactor in one step at a time, which allows speeding up the process and carrying out it without heat supply from the outside.
Пример. К раствору 2 кг углекислого аммони в 2 л воды добавл ют 3,2 кг монохлоруксусной кислоты и 10 л раствора едкого кали уд. в. 1,24 и оставл ют на 18-20 час. После этого реакционную массу фильтруют и фильтрат обрабатывают концентрированной сол ной кис .лотой ,5-2,0. В результате выдел етс нитрнлотриуксусна кислота , выход которой колеблетс в пределах 50-55% к теории.Example. To a solution of 2 kg of ammonium carbonate in 2 liters of water is added 3.2 kg of monochloroacetic acid and 10 liters of potassium hydroxide solution. at. 1.24 and left for 18-20 hours. After that, the reaction mass is filtered and the filtrate is treated with concentrated hydrochloric acid, 5-2.0. As a result, nitrochlorotriacetic acid is released, the output of which ranges from 50-55% of theory.
Предмет изобретени Subject invention
Способ получени питрилотриуксусной кислоты путем взаимодействи монохлоруксусной кислоты с углекислым аммонием в водной среде в присутствии едкой щелочи, отличающийс тем, что, с целью ускорени процесса и возможного проведени его без подвода тепла извне, все реагенты ввод т в реактор в один прием одновременно.A method of producing pitrilotriacetic acid by reacting monochloroacetic acid with ammonium carbonate in an aqueous medium in the presence of caustic alkali, characterized in that, in order to accelerate the process and possibly conduct it without heat from outside, all reagents are introduced into the reactor at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU605656A SU121450A1 (en) | 1958-08-09 | 1958-08-09 | The method of obtaining nitrilotriacetic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU605656A SU121450A1 (en) | 1958-08-09 | 1958-08-09 | The method of obtaining nitrilotriacetic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU121450A1 true SU121450A1 (en) | 1958-11-30 |
Family
ID=48393235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU605656A SU121450A1 (en) | 1958-08-09 | 1958-08-09 | The method of obtaining nitrilotriacetic acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU121450A1 (en) |
-
1958
- 1958-08-09 SU SU605656A patent/SU121450A1/en active
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