SU66863A2 - The method of obtaining synthetic tanning agents - Google Patents
The method of obtaining synthetic tanning agentsInfo
- Publication number
- SU66863A2 SU66863A2 SU2312A SU340080A SU66863A2 SU 66863 A2 SU66863 A2 SU 66863A2 SU 2312 A SU2312 A SU 2312A SU 340080 A SU340080 A SU 340080A SU 66863 A2 SU66863 A2 SU 66863A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tanning agents
- synthetic tanning
- obtaining synthetic
- tanning
- obtaining
- Prior art date
Links
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Coloring (AREA)
Description
СПОСОБ ПОЛУЧЕНЖ СИНТЕТМЮКИХ ДУЫ-ТГЕЛЕЙ- .jj i ; ;;;- ;;THE METHOD OF RECEIVING SYNTHETHMYUK DUY-TGELEY- .jj i; ;;; - ;;
За влено 29 aBiycTa 1945 г. за JS 340080 It is claimed 29 aBiycTa 1945 for JS 340080
в Главгазтоппромin Glavgaztopprom
ОтгаЗликовано в Бюллетене изобретений J5 5 за 1947 г.Otglirovano in the Bulletin of inventions J5 5 for 1947
Основное авт.св. J5 59368Main auth.St. J5 59368
Известен способ получе1ш синтетических дубителей из фенола, гомологов фенола шш технических смесей последних по авт.св. и 59368.There is a method of obtaining synthetic tanning agents from phenol, homologues of phenol from technical mixtures of the latter by ed. and 59368.
Предлагаемый способ отличаетс от известных тем, что конденсацию сульфомассы о формальдегида провод т в нейтральной или щелочной средеThe proposed method differs from the known ones in that the condensation of sulfomass on formaldehyde is carried out in a neutral or alkaline medium.
Это позвол ет сохранить цвет дубител , близкигл к цвету натуральных дубителей.This allows the color of the tanning agent to be kept close to that of natural tanning agents.
В известном способе дубители получаю-т путем сульфировани продуктов кодценсащш фенолов с альдегидаг.ш и кетоншж путем вторичной конденсации суль(|юмассы с формал1щом. Однако при этом либо усиливаетс , либо измен етс цвет дубител . Если проводить вторичную конденсацию в нейтральной или щелочной среде, то цвет дубителей вторичной конденсации может быть даже улучшен по среднению с исходным. По око1гчании решсцшт продукт подкисл етс до требуемой зшслотности и в таком виде используетс дл дублени ИЛИиспользуетс в комбинации с другш.ш дубител ми. Усреднение сульфомассы может быть произведено (ли основани ми: содой, шллиаком, мелом, агнезиток, дололитом. Дл поди1елачиваш пригодны те же сода и амгдаак, а также ед2са щелочь, бура и сульфит натри .In the known method, tannins are obtained by sulfonation of products of coenophenol phenols with aldehyde and ketones by means of secondary condensation of sul (| mass with formalism. However, this either enhances or changes the color of the tanning agent. If secondary condensation is carried out in a neutral or alkaline medium, then the color of the secondary condensation tanning agents can even be improved by an average of the initial one.Only, the solution is acidified to the desired level and used as such for tanning OR used in combination with other tannins. The averaging of sulpholmass can be produced (whether the bases: soda, shliac, chalk, agnesite, dololite. The same soda and amgdaak, as well as alkaline alkali, borax and sodium sulphite are suitable for those who want it.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2312A SU66863A2 (en) | 1945-08-29 | 1945-08-29 | The method of obtaining synthetic tanning agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2312A SU66863A2 (en) | 1945-08-29 | 1945-08-29 | The method of obtaining synthetic tanning agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU66863A2 true SU66863A2 (en) | 1945-11-30 |
Family
ID=52780333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2312A SU66863A2 (en) | 1945-08-29 | 1945-08-29 | The method of obtaining synthetic tanning agents |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU66863A2 (en) |
-
1945
- 1945-08-29 SU SU2312A patent/SU66863A2/en active
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