SU123483A1 - The method of obtaining synthetic flocculants - Google Patents
The method of obtaining synthetic flocculantsInfo
- Publication number
- SU123483A1 SU123483A1 SU615906A SU615906A SU123483A1 SU 123483 A1 SU123483 A1 SU 123483A1 SU 615906 A SU615906 A SU 615906A SU 615906 A SU615906 A SU 615906A SU 123483 A1 SU123483 A1 SU 123483A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining synthetic
- synthetic flocculants
- flocculants
- obtaining
- weight
- Prior art date
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
В насто щее врем синтетические флокул нты ползчают путем щелочного гидролиза полиакрилонитрила.At present, synthetic flocculants are creeping by alkaline hydrolysis of polyacrylonitrile.
Предлагаемый способ более совершенен по сравнению с известными подобными способами, так как он позвол ет ускорить процесс гидролиза . Это достигаетс в результате применени в качестве катализатора перекиси водорода.The proposed method is more perfect in comparison with the known similar methods, since it allows to accelerate the hydrolysis process. This is achieved by using hydrogen peroxide as a catalyst.
Дл осуществлени предлагаемого способа 10 вес. ч. измельчст1ного полинака помещают в круглодонную колбу с мещалкой и обратным холодильником. Туда же добавл ют раствор щелочи, воду (4 вес. ч. NaOH и 260 вес. ч. воды) и нерекись водорода в таком количестве, чтобы концентраци ее в реакционной смеси составл ла от 1,5 до 3%. Смесь кип т т в течение 1-3 час., охлаждают и раствор нримен ют в качестве флокул нта. Содерл ание азота в конечном продукте 16-18%, характеристическа в зкость находитс в пределах от -гЗ.5 до 4-5.To implement the proposed method 10 weight. including the crushed polink is placed in a round-bottomed flask with a baking dish and reflux condenser. An alkali solution, water (4 parts by weight of NaOH and 260 parts by weight of water) and hydrogen oxide are added in such an amount that its concentration in the reaction mixture is from 1.5 to 3%. The mixture is boiled for 1-3 hours, cooled and the solution is applied as flocculant. The nitrogen content in the final product is 16-18%, the intrinsic viscosity ranges from -5.5 to 4-5.
Предмет изобретени Subject invention
Способ получени синтетических флокул нтов путем щелочного гидролиза полиакрилонитрила, отличающийс тем, что, с целью ускорени процесса гидролиза, примен ют в качестве катализатора перекись водорода.The method of producing synthetic flocculants by alkaline hydrolysis of polyacrylonitrile, characterized in that, in order to accelerate the hydrolysis process, hydrogen peroxide is used as a catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU615906A SU123483A1 (en) | 1959-01-05 | 1959-01-05 | The method of obtaining synthetic flocculants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU615906A SU123483A1 (en) | 1959-01-05 | 1959-01-05 | The method of obtaining synthetic flocculants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU123483A1 true SU123483A1 (en) | 1959-11-30 |
Family
ID=48395040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU615906A SU123483A1 (en) | 1959-01-05 | 1959-01-05 | The method of obtaining synthetic flocculants |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU123483A1 (en) |
-
1959
- 1959-01-05 SU SU615906A patent/SU123483A1/en active
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