SU60288A1 - The method of producing trioxyglutaric acid - Google Patents
The method of producing trioxyglutaric acidInfo
- Publication number
- SU60288A1 SU60288A1 SU2262A SU2262A SU60288A1 SU 60288 A1 SU60288 A1 SU 60288A1 SU 2262 A SU2262 A SU 2262A SU 2262 A SU2262 A SU 2262A SU 60288 A1 SU60288 A1 SU 60288A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid
- calcium
- trioxyglutarate
- trioxyglutaric
- producing
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 9
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- 239000011575 calcium Substances 0.000 claims description 9
- SRBFZHDQGSBBOR-SQOUGZDYSA-N Xylose Natural products O[C@@H]1CO[C@@H](O)[C@@H](O)[C@@H]1O SRBFZHDQGSBBOR-SQOUGZDYSA-N 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 5
- QXKAIJAYHKCRRA-FLRLBIABSA-N Xylonic acid Chemical compound OC[C@@H](O)[C@H](O)[C@@H](O)C(O)=O QXKAIJAYHKCRRA-FLRLBIABSA-N 0.000 claims description 4
- 229960003487 Xylose Drugs 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 4
- QXDMQSPYEZFLGF-UHFFFAOYSA-L Calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000015450 Tilia cordata Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 230000005591 charge neutralization Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 230000001264 neutralization Effects 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 1
- 239000000920 calcium hydroxide Substances 0.000 claims 1
- 235000011116 calcium hydroxide Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-L oxalate Chemical compound [O-]C(=O)C([O-])=O MUBZPKHOEPUJKR-UHFFFAOYSA-L 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Description
Известно получение триоксиглутаровой кислоты путем окислени ксилозы, разбавленной азотной кислотой , с последующей нейтрализацией продукта окислени мелом или известью, выделением триоксиглутарата кальци и переводом последнег го в кислоту обычными приемами.It is known to obtain trioxyglutaric acid by oxidation of xylose diluted with nitric acid, followed by neutralization of the oxidation product with chalk or lime, isolation of calcium trioxyglutarate and conversion of the latter to acid by conventional methods.
При получении триоксиглутаровой кислоты согласно вышеуказанному возникают значительные затруднени в части выделени триоксиглутарата кальци из нейтрализованной реакционной массы. Кроме того, при окислении ксилозы в зависимости от условий работы получаютс некоторые переменные количества побочных продуктов щавелевой и ксилоновой кислоты, отделение которых от триоксиглутаровой кислоты также представл ет затруднени .In the preparation of trioxyglutaric acid according to the above, considerable difficulties arise in the recovery of calcium trioxyglutarate from the neutralized reaction mass. In addition, the oxidation of xylose, depending on the operating conditions, produces some variable amounts of oxalic and xylonic acid by-products, the separation of which from trioxyglutaric acid also presents difficulties.
Дл устранени указанных затруднений предлагаетс способ получени триоксиглутаровой кислоты, отличающийс от известных тем, что продукт окислени ксилозы без предварительного упаривани нейтрализуют вначале на холоду, с целью осаждени оксалата кальци , затем фильтрат кин т т, дл осаждени триоксиглутарата кальци .To eliminate these difficulties, a method for producing trioxyglutaric acid is proposed, which differs from those known in that the oxidation product of xylose without prior evaporation is first neutralized in the cold to precipitate calcium oxalate, then the filtrate is rolled up to precipitate calcium trioxyglutarate.
Фильтрат, получаемый после отделени триоксиглутарата кальци , содержит ксилоновую кислоту, которую можно осадить известью в виде основной кальциевой соли.The filtrate obtained after separation of calcium trioxyglutarate contains xylonic acid, which can be precipitated with lime in the form of the basic calcium salt.
Преимущества вышеуказанного способа заключаютс в следующем. 1. Рекомендуема некоторыми авторами нейтрализаци продукта окислени при кип чении приводит к одновременному осаждению нар ду с оксалатом и триоксиплутарата кальци .The advantages of the above method are as follows. 1. It is recommended by some authors that neutralization of the oxidation product during boiling results in simultaneous precipitation of calcium trioxyplutarate along with oxalate.
Согласно предлагаемому способу оксалат и триоксиглутарат кальци осаждаютс раздельно.According to the proposed method, calcium oxalate and calcium trioxyglutarate are precipitated separately.
2. Выделенную согласно предлагаемому способу ксилоновую кислоту можно подвергнуть окислительной обработке и перевести ее в триоксиглутаровую кислоту.2. Dedicated according to the proposed method, xylonic acid can be subjected to oxidative treatment and convert it to trioxyglutaric acid.
Таким образом, общий выход триоксиглутаровой кислоты существенно повышаетс Предмет изобретени Thus, the overall yield of trioxyglutaric acid is significantly increased.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2262A SU60288A1 (en) | 1939-11-10 | The method of producing trioxyglutaric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2262A SU60288A1 (en) | 1939-11-10 | The method of producing trioxyglutaric acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU1456A1 SU1456A1 (en) | 1924-09-15 |
| SU60288A1 true SU60288A1 (en) | 1941-06-30 |
Family
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