SU46921A1 - The method of obtaining malic acid from the tobacco - Google Patents
The method of obtaining malic acid from the tobaccoInfo
- Publication number
- SU46921A1 SU46921A1 SU172450A SU172450A SU46921A1 SU 46921 A1 SU46921 A1 SU 46921A1 SU 172450 A SU172450 A SU 172450A SU 172450 A SU172450 A SU 172450A SU 46921 A1 SU46921 A1 SU 46921A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- malic acid
- tobacco
- acid
- obtaining
- precipitate
- Prior art date
Links
- BJEPYKJPYRNKOW-UHFFFAOYSA-N Malic acid Chemical compound OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 title description 6
- 239000001630 malic acid Substances 0.000 title description 6
- 229940099690 malic acid Drugs 0.000 title description 6
- 235000011090 malic acid Nutrition 0.000 title description 6
- 241000208125 Nicotiana Species 0.000 title description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 title description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 235000015450 Tilia cordata Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000006188 syrup Substances 0.000 description 3
- 235000020357 syrup Nutrition 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K 2qpq Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N Coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CJDPJFRMHVXWPT-UHFFFAOYSA-N Barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 description 1
- 229960005069 Calcium Drugs 0.000 description 1
- 229960004256 Calcium Citrate Drugs 0.000 description 1
- FNAQSUUGMSOBHW-UHFFFAOYSA-H Calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- SNICXCGAKADSCV-JTQLQIEISA-N Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 229960002715 Nicotine Drugs 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001354 calcium citrate Substances 0.000 description 1
- QXDHJHQRJCJRAU-UHFFFAOYSA-N calcium;2-hydroxypropane-1,2,3-tricarboxylic acid Chemical compound [Ca].OC(=O)CC(O)(C(O)=O)CC(O)=O QXDHJHQRJCJRAU-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229940049920 malate Drugs 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-L malate(2-) Chemical compound [O-]C(=O)C(O)CC([O-])=O BJEPYKJPYRNKOW-UHFFFAOYSA-L 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229930015196 nicotine Natural products 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000013337 tricalcium citrate Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
Предлагаемое изобретение касаетс выделени блочной кислоты из махорки или махорочных отбросов при табачном производстве.The present invention relates to the isolation of malic acid from flue or shag garbage from tobacco production.
На р ду с лимонной кислотой в махорках содержитс и значительное количество блочной кислоты (4 - 6%), котора до сего времени не получалась, а оставалась в фильтрате от осаждени цитрата кальци . Вместе с тем блочна кислота имеет важное значение как в пищевой промышленности, так и в качестве сырь дл получени некоторых органических препаратов (например, кумарина ).In the row with citric acid, the tobacco contains a significant amount of malic acid (4-6%), which until now has not been obtained, but remained in the filtrate from the precipitation of calcium citrate. However, malic acid is important both in the food industry and as a raw material for the production of certain organic preparations (for example, coumarin).
/Автором данного изобретени разработан способ получени блочной кислоты или ее высокопроцентных сиропов из отбросов, образующихс на заводах получени лимонной кислоты из махорки ./ The author of this invention has developed a method for producing malic acid or its high-percentage syrups from waste generated in plants producing citric acid from the shag.
В основном способ заключаетс в следующем . Махорка выщелачиваетс водой, подкисленной сол ной кислотой, причем в раствор переход т лимонна и блочна кислота. Полученную выт жку нейтрализуют мелом или известью до слабо кислой реакции и нагревают до выпадени лимонно-кислого кальци ; осадок цитрата отдел ют из гор чего раствора; при этом блочно-кислый кальций преимущественно остаетс в растворе.The main method is as follows. The tritumen is leached with water acidified with hydrochloric acid, and citric acid and block acid are transferred to the solution. The resulting extract is neutralized with chalk or lime until slightly acidic, and heated to precipitate citric acid calcium; the precipitate of citrate is separated from the hot solution; while the acidic calcium predominantly remains in solution.
Фильтрат от цитрата дополнительно донейтрализовывают известью или едким натром до нейтральной или слабо щелочной реакции и сильно упаривают (до 60)The filtrate from citrate is additionally neutralized with lime or caustic soda to a neutral or slightly alkaline reaction and strongly evaporated (up to 60)
плотности 25-30 Вё). После охла Гценк отдел ют осадок блочнокислого каутьци и промывают его до исчезновени реакции на никотин.density 25-30 Vyo). After cooling, Gtsenk separates the blocking caustic precipitate and rinses it until the reaction to nicotine disappears.
Так как промывка довольно затруднительна , то возможно вновь растворить непромытый осадок в сол ной кислоте и осадить малат нейтрализацией мелом или известью.Since washing is rather difficult, it is possible to re-dissolve the unwashed precipitate in hydrochloric acid and precipitate malate by neutralization with chalk or lime.
Не менее пригодна очистка осадка растворением его в воде посредством нагревани до удалени сернистого газа.No less suitable is the purification of the precipitate by dissolving it in water by heating to remove sulfur dioxide.
Промытый или переосажденный .осадок блочнокислого кальци разлагают серной кислотой, раствор отдел ют от гипса, обрабатывают активным углем и упаривают в вакуум-аппарате до плотности 25-30 Вё.The washed or re-precipitated calcium-acid precipitate is decomposed with sulfuric acid, the solution is separated from the gypsum, treated with active charcoal and evaporated in a vacuum apparatus to a density of 25-30 V.
После этого раствор окончательно отдел ют от гипса, освобождают, если надо, от избытка серной кислоты (мелом), от примесей т желых металлов (сернистым барием) и упаривают до сиропов желаемой плотности и процентности.Thereafter, the solution is finally separated from the gypsum, freed, if necessary, from an excess of sulfuric acid (chalk), from heavy metal impurities (barium sulphide) and evaporated to syrups of the desired density and percentage.
Предмет изобретени .The subject matter of the invention.
Способ получени блочной кислоты из махорки, отличающийс тем, что фильтрат, остающийс после извлечени из махорки лимонной кислоты, дополнительно нейтрализуют известью или едким натром, разлагают блочнокиспую соль серной кислотой и обрабатывают раствор обычным путем дл получени чистой блочной кислоты в виде сиропа или кристаллов. . .Печатный Труд. Зак. 3424-400The method of obtaining malic acid from the shag, characterized in that the filtrate remaining after extraction of the citric acid from the shag is additionally neutralized with lime or caustic soda, decomposed into a block-salt with sulfuric acid and treated with a solution in the usual way to obtain pure block acid in the form of syrup or crystals. . . Printed Labor. Zak 3424-400
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU46921A1 true SU46921A1 (en) | 1936-05-31 |
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