GB1479880A - Process for the purification of aqueous solutions of glycerol - Google Patents
Process for the purification of aqueous solutions of glycerolInfo
- Publication number
- GB1479880A GB1479880A GB1915776A GB1915776A GB1479880A GB 1479880 A GB1479880 A GB 1479880A GB 1915776 A GB1915776 A GB 1915776A GB 1915776 A GB1915776 A GB 1915776A GB 1479880 A GB1479880 A GB 1479880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycerol
- solution
- precipitate
- purification
- methanol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title abstract 15
- 239000007864 aqueous solution Substances 0.000 title abstract 4
- 238000000746 purification Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 9
- 239000000243 solution Substances 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- -1 by distillation Chemical compound 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000344 soap Substances 0.000 abstract 1
- 229910001415 sodium ion Inorganic materials 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/22—Trihydroxylic alcohols, e.g. glycerol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1479880 Purification of aqueous glycerol KAO SOAP CO Ltd 10 May 1976 [22 May 1975] 19157/76 Heading C2C An aqueous solution of glycerol containing cationic impurities, e.g. sodium ions, is purified by adding methanol and sulphuric acid to the solution to precipitate the impurities as insoluble sulphates, removing the precipitate, e.g. by filtration or centrifugal separation, and then removing the methanol, e.g. by distillation, thereby obtaining a purified aqueous solution of glycerol. The starting aqueous solution may for example contain 30-95 wt. per cent glycerol, the methanol may be added to give a 30-70 wt. per cent solution, and sufficient sulphuric acid to neutralize the solution, and give a pH of 6-6À5, is desirable; the precipitate is preferably removed at 35-60‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6122975A JPS51136607A (en) | 1975-05-22 | 1975-05-22 | Process for purification of aqueous glycerine solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1479880A true GB1479880A (en) | 1977-07-13 |
Family
ID=13165167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1915776A Expired GB1479880A (en) | 1975-05-22 | 1976-05-10 | Process for the purification of aqueous solutions of glycerol |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS51136607A (en) |
| GB (1) | GB1479880A (en) |
| PH (1) | PH12947A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012907A1 (en) * | 1978-12-20 | 1980-07-09 | Bayer Ag | Process for the purification of low molecular weight polyhydroxy compounds |
| EP0184880A1 (en) * | 1984-12-10 | 1986-06-18 | Shell Internationale Researchmaatschappij B.V. | Recovery of glycerine from saline waters |
| US7534923B2 (en) | 2007-08-15 | 2009-05-19 | Rohm And Haas Company | Method for purification of glycerol from biodiesel production |
| WO2009098301A1 (en) * | 2008-02-07 | 2009-08-13 | Cognis Oleochemicals Gmbh | Treatment of residues containing salt and glycerol |
| EP2159212A1 (en) * | 2008-09-01 | 2010-03-03 | Rohm and Haas Company | Method for purification of glycerol from biodiesel production |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3041443B2 (en) * | 1992-12-15 | 2000-05-15 | 花王株式会社 | Method for producing glycerin |
| WO2012063349A1 (en) * | 2010-11-11 | 2012-05-18 | 株式会社日立プラントテクノロジー | Glycerin purification method |
| US9868682B2 (en) * | 2013-08-19 | 2018-01-16 | REG Life Sciences, LLC | Production of partially refined waste glycerol |
-
1975
- 1975-05-22 JP JP6122975A patent/JPS51136607A/en active Pending
-
1976
- 1976-05-10 GB GB1915776A patent/GB1479880A/en not_active Expired
- 1976-05-25 PH PH18462A patent/PH12947A/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012907A1 (en) * | 1978-12-20 | 1980-07-09 | Bayer Ag | Process for the purification of low molecular weight polyhydroxy compounds |
| EP0184880A1 (en) * | 1984-12-10 | 1986-06-18 | Shell Internationale Researchmaatschappij B.V. | Recovery of glycerine from saline waters |
| US7534923B2 (en) | 2007-08-15 | 2009-05-19 | Rohm And Haas Company | Method for purification of glycerol from biodiesel production |
| CN101367711B (en) * | 2007-08-15 | 2012-05-30 | 罗门哈斯公司 | Method for purifying glycerol from biodiesel production |
| WO2009098301A1 (en) * | 2008-02-07 | 2009-08-13 | Cognis Oleochemicals Gmbh | Treatment of residues containing salt and glycerol |
| EP2159212A1 (en) * | 2008-09-01 | 2010-03-03 | Rohm and Haas Company | Method for purification of glycerol from biodiesel production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51136607A (en) | 1976-11-26 |
| PH12947A (en) | 1979-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |