SU568264A1 - Method of obtaining phenolformaldehyde resins of novolak type - Google Patents
Method of obtaining phenolformaldehyde resins of novolak typeInfo
- Publication number
- SU568264A1 SU568264A1 SU742085046A SU2085046A SU568264A1 SU 568264 A1 SU568264 A1 SU 568264A1 SU 742085046 A SU742085046 A SU 742085046A SU 2085046 A SU2085046 A SU 2085046A SU 568264 A1 SU568264 A1 SU 568264A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining
- novolak type
- phenolformaldehyde resins
- phenolformaldehyde
- resins
- Prior art date
Links
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Description
дистиллированной водой. Катионит отмывают дистиллированной водой до нейтральной реакции промывных вод, обрабатывают 4%-ным раствором едкого «атра и снова водой. Затем катионит перевод т в Н+-форму 6%-ным раствором сол ной кислоты , отмывают дистиллированной водой до отсутстви ионов хлора в промывных водах и высушивают при 70°С в течение в-10 ч.distilled water. The cation exchanger is washed with distilled water until neutral wash water, treated with a 4% solution of caustic "atra and again with water. Then the cation exchanger is converted into H + -form with a 6% hydrochloric acid solution, washed with distilled water to the absence of chlorine ions in the wash water and dried at 70 ° C for-10 h.
Статическа обменна емкость полученного катионита по 0,1 н. раствору едкого натра 3,1 мГЭкв/г, удельный объем в Н+нформе 8,:1 мл/г, содержание азота и серы 4,5 и 9,5% соответственно.The static exchange capacity of the obtained cation exchanger is 0.1 n. a solution of caustic soda 3.1 mHEq / g, specific volume in H + form 8,: 1 ml / g, nitrogen and sulfur content of 4.5 and 9.5%, respectively.
Пример 2. 25 г сополимера стирола с 2% п-дивинилбензола обрабатывают по примеру 1 с той лишь разницей, что реакционна смесь содержит 5 г нитрата кали (0,2 моль на осново-моль сополимера) и процесс провод т При 70°С.Example 2. 25 g of a styrene copolymer with 2% p-divinylbenzene are treated as in Example 1 with the only difference that the reaction mixture contains 5 g of potassium nitrate (0.2 mol based on the mol-copolymer) and the process is carried out at 70 ° C.
Статическа обменна емкость полученного Катионита по 0,1 н. раствору едкогоThe static exchange capacity of the obtained Cation exchanger is 0.1 n. caustic solution
иатра Составл ет 4,0 мг-экв/г, удельный объем его в Н+-форме 9,8 мл/г, содержание азота и серы 1,6 и 12,6% соответственно .It is 4.0 mEq / g, its specific volume in the H + form is 9.8 ml / g, the nitrogen and sulfur contents are 1.6 and 12.6%, respectively.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU742085046A SU568264A1 (en) | 1974-12-18 | 1974-12-18 | Method of obtaining phenolformaldehyde resins of novolak type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU742085046A SU568264A1 (en) | 1974-12-18 | 1974-12-18 | Method of obtaining phenolformaldehyde resins of novolak type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU568264A1 true SU568264A1 (en) | 1979-01-30 |
Family
ID=20603809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU742085046A SU568264A1 (en) | 1974-12-18 | 1974-12-18 | Method of obtaining phenolformaldehyde resins of novolak type |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU568264A1 (en) |
-
1974
- 1974-12-18 SU SU742085046A patent/SU568264A1/en active
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