SU6179A1 - The method of concentration of tanning extracts - Google Patents
The method of concentration of tanning extractsInfo
- Publication number
- SU6179A1 SU6179A1 SU14440A SU14440A SU6179A1 SU 6179 A1 SU6179 A1 SU 6179A1 SU 14440 A SU14440 A SU 14440A SU 14440 A SU14440 A SU 14440A SU 6179 A1 SU6179 A1 SU 6179A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- concentration
- tanning
- water
- tannids
- evaporation
- Prior art date
Links
- 239000000284 extract Substances 0.000 title description 4
- 239000000243 solution Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N D-Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical group O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 1
- 229920001938 Vegetable gum Polymers 0.000 description 1
- 235000020127 ayran Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000002338 glycosides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N β-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
Description
Существующие способы сгущени таннид - содержащих экстракций основаны на удалении избытка воды упариванием. В виду того, что технически полное водное выщелачивание дубильных материалов может быть осуществлено лишь весьма значительными количествами воды,-получаемые растворы содержат не свыще 3,5-4°/о экстрактивных веществ. Таким образом, подлежит удалению при изготовлении сухих экстрактов около 95°/о воды.Existing methods for thickening tannid-containing extractions are based on the removal of excess water by evaporation. In view of the fact that technically complete water leaching of tanning materials can be carried out only with very significant amounts of water, the resulting solutions contain no more than 3.5-4 ° / o of extractive substances. Thus, to be removed in the manufacture of dry extracts about 95 ° / about water.
В процессе упаривани танниды, вследствие продолжительного нагревани , претерпевают частичное разложение, особенно значительное, если упаривание было произведено не под уменьшенным давлением. Вместе с этим оказалось, что растворы таннидов могут быть освобождены от значительных масс воды при посредстве вымораживани , без потери таннидной части сгущенного раствора. Рассматрива дубильные экстракции, как смешанные растворы, содержащие р д компонентов, как кристаллоидного характера (глюкозы, гликозиды иIn the process of evaporation, the tannids, due to prolonged heating, undergo partial decomposition, especially significant, if the evaporation was not carried out under reduced pressure. At the same time, it turned out that tannid solutions can be freed from significant masses of water through freezing, without losing the tannin part of the condensed solution. Consider tanning extractions as mixed solutions containing a number of components of a crystalloid nature (glucose, glycosides and
пр.), не обладающие дуб щим характером , так и коллоидных веществ (танниды, растительные камеди), обладающих в большей части дуб щими свойствами (танниды), можно методом вымораживани в значительнбй мере сгустить и разделить эти растворы.etc.), which do not have a tan character, as well as colloidal substances (tannids, vegetable gums), which possess mostly tanning properties (tannids), can be considerably thickened by freezing and separating these solutions.
При постепенном понижении температуры , вначале вымерзает одна вода; затем, раствор получает такую концентрацию, при которой образуютс криогидраты некоторых кристаллоидных составных частей, что ведет к сгущению и обогащению маточного раствора не дающими криогидратов коллоидными част ми экстракции - таннидами. Маточный раствор, затем, подвергаетс выпариванию обычными приемами.With a gradual decrease in temperature, first water freezes out; then, the solution receives such a concentration, at which cryohydrates of some crystalloid components are formed, which leads to thickening and enrichment of the mother liquor by tannides that do not give cryohydrates colloidal extraction parts. The mother liquor is then subjected to evaporation by conventional methods.
Пример: Вз то 500 куб. см таннидного раствора, обогащенного недуб щими веществами:Example: At 500 cubic meters see tannins solution enriched with non-infiltrating substances:
таннидов .... 18,0°/о нетаннидов .... 82,0/о Сухой остаток в 100 лгу. с.д 1,913.of tannids .... 18.0 ° / o netunnides .... 82.0 / o Dry residue of 100 lie. sd 1.913.
Раствор подвергнут медленному процессу вымораживани при Т оноло-1,5. После вымораживани , криогидрировалось 75°/о раствора. Состав криогидратной части: таннидов .... (следы) нетаннидов .... 100°/Q Сухой остаток в 100 куб. см 1,1. Состав незамерзшей части:; таннидов .... 25,8/ч нетаннидов . . 74, Сухой остатокв 100 . CjW 4,2Р оПредмет патента. Способ концентрации дубильных экстрактов, отличающийс тем, что в цел х удалени недуб щих веществ и части растворител -воды, экстракт сначала вымораживают, после чего маточный раствор подвергают выпариванию обычными приемами.The solution is subjected to a slow freezing process at T onol-1.5. After freezing, 75 ° (o) of the solution was cryohydrated. The composition of the cryohydrate part: tannins .... (traces) of netunnides .... 100 ° / Q The dry residue is 100 cubic meters. cm 1.1. The composition of the unfrozen part: tannids .... 25.8 / h netannids. . 74, Dry residue 100. CjW 4.2R Subject patent. The method of concentration of tanning extracts, characterized in that in order to remove non-auxiliary substances and part of the solvent-water, the extract is first frozen, after which the mother liquor is subjected to evaporation by conventional methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU14440A SU67165A1 (en) | 1944-05-04 | 1944-05-04 | Device for automatic feeding the boiler of the heating system of internal combustion engines before starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU14440A SU67165A1 (en) | 1944-05-04 | 1944-05-04 | Device for automatic feeding the boiler of the heating system of internal combustion engines before starting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU6179A1 true SU6179A1 (en) | 1928-08-31 |
| SU67165A1 SU67165A1 (en) | 1945-11-30 |
Family
ID=48246814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU14440A SU67165A1 (en) | 1944-05-04 | 1944-05-04 | Device for automatic feeding the boiler of the heating system of internal combustion engines before starting |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU67165A1 (en) |
-
1944
- 1944-05-04 SU SU14440A patent/SU67165A1/en active
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