IE41769L - Crystallisation of fructose - Google Patents
Crystallisation of fructoseInfo
- Publication number
- IE41769L IE41769L IE750027A IE2775A IE41769L IE 41769 L IE41769 L IE 41769L IE 750027 A IE750027 A IE 750027A IE 2775 A IE2775 A IE 2775A IE 41769 L IE41769 L IE 41769L
- Authority
- IE
- Ireland
- Prior art keywords
- fructose
- solution
- crystals
- mass
- weight
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K11/00—Fructose
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Saccharide Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
1456260 Crystallizing fructose SUOMEN SOKERI OSAKEYHTIO 9 Dec 1974 [28 Jan 1974] 53056/74 Heading B1G [Also in Division C2] Fructose crystals having a crystal size of 200 to 600 Ám are obtained by crystallizing fructose from an aqueous solution thereof, containing at least 90% by weight of dry substance of which dry substance at least 90 percent by weight is fructose, in a process which comprises (a) providing such a fructose solution (b) adjusting the pH of said solution to 4.0-6.0, preferably 4.5-5.5, (c) bringing the aqueous fructose solution to a temperature at which it is saturated with respect to fructose, (a) adding fructose seed crystals to the solution, (e) lowering the temperature of the resulting mass at a controlled rate to cause the mass to be supersaturated with respect to fructose and to bring about an increase in the crystal size of the seed crystals without substantial formation of new fructose crystals and (f) separating the fructose crystals from the mass when the crystal size is 200-600 Ám. The process may be carried out continuously using as seed crystals, crystals taken from a previous crystallization and recrystallization may be accelerated by blowing warm dry air on to the surface of the mass to evaporate water therefrom during crystallisation. The rate of crystallisation of fructose may be increased by the addition to the solution of 2-4% by weight, based on the sugar solids, of methanol, ethanol, and/or isopropanol.
[GB1456260A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US437224A US3883365A (en) | 1972-01-04 | 1974-01-28 | PH adjustment in fructose crystallization for increased yield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41769L true IE41769L (en) | 1975-07-28 |
| IE41769B1 IE41769B1 (en) | 1980-03-26 |
Family
ID=23735578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE27/75A IE41769B1 (en) | 1974-01-28 | 1975-01-06 | Method for crystallization of fructose from water solution |
Country Status (22)
| Country | Link |
|---|---|
| JP (1) | JPS5838160B2 (en) |
| AT (1) | AT346785B (en) |
| BE (1) | BE824362A (en) |
| BG (1) | BG24961A3 (en) |
| CA (1) | CA1030533A (en) |
| CH (1) | CH596318A5 (en) |
| CS (1) | CS207335B2 (en) |
| DE (1) | DE2502558C2 (en) |
| DK (1) | DK24875A (en) |
| ES (1) | ES433589A1 (en) |
| FI (1) | FI58654C (en) |
| FR (1) | FR2259151B1 (en) |
| GB (1) | GB1456260A (en) |
| HU (1) | HU174513B (en) |
| IE (1) | IE41769B1 (en) |
| IT (1) | IT1026412B (en) |
| NL (1) | NL186183C (en) |
| PL (1) | PL102673B1 (en) |
| RO (1) | RO76829A (en) |
| SE (1) | SE434407B (en) |
| YU (1) | YU36540B (en) |
| ZA (1) | ZA7590B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041317B4 (en) * | 1990-01-18 | 2005-09-08 | Xyrofin Oy | Process for crystallizing crystal water-free fructose from its aqueous solutions |
| US10808002B2 (en) | 2014-10-20 | 2020-10-20 | Cj Cheiljedang Corporation | Method for preparing D-psicose crystal |
| KR101749527B1 (en) | 2014-10-20 | 2017-06-21 | 씨제이제일제당(주) | A method of manufacturing a d-psicose crystal |
| KR101981388B1 (en) * | 2017-06-14 | 2019-05-22 | 씨제이제일제당 (주) | A method of manufacturing a d-psicose crystal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949389A (en) * | 1958-03-17 | 1960-08-16 | Dawe S Lab Inc | Production of levulose |
| DE2017500A1 (en) * | 1970-04-11 | 1971-10-28 | Engel, Herbert, 8000 München | Rotating recording and playback systems |
| FI46631C (en) * | 1971-03-11 | 1973-05-08 | Suomen Sokeri Oy | Process for crystallizing fructose from concentrated aqueous solution |
| JPS5239901B2 (en) * | 1973-02-12 | 1977-10-07 |
-
1974
- 1974-12-09 GB GB5305674A patent/GB1456260A/en not_active Expired
- 1974-12-18 CA CA216,625A patent/CA1030533A/en not_active Expired
- 1974-12-30 NL NLAANVRAGE7417006,A patent/NL186183C/en not_active IP Right Cessation
-
1975
- 1975-01-04 ES ES433589A patent/ES433589A1/en not_active Expired
- 1975-01-06 IE IE27/75A patent/IE41769B1/en unknown
- 1975-01-06 ZA ZA00750090A patent/ZA7590B/en unknown
- 1975-01-07 HU HU75SU885A patent/HU174513B/en unknown
- 1975-01-09 YU YU00042/75A patent/YU36540B/en unknown
- 1975-01-14 BE BE152358A patent/BE824362A/en not_active IP Right Cessation
- 1975-01-21 IT IT7547778A patent/IT1026412B/en active
- 1975-01-22 FI FI750158A patent/FI58654C/en not_active IP Right Cessation
- 1975-01-23 SE SE7500717A patent/SE434407B/en not_active IP Right Cessation
- 1975-01-23 DE DE2502558A patent/DE2502558C2/en not_active Expired
- 1975-01-23 RO RO7581207A patent/RO76829A/en unknown
- 1975-01-24 CS CS75492A patent/CS207335B2/en unknown
- 1975-01-24 FR FR7502243A patent/FR2259151B1/fr not_active Expired
- 1975-01-24 CH CH88075A patent/CH596318A5/xx not_active IP Right Cessation
- 1975-01-25 PL PL1975177575A patent/PL102673B1/en unknown
- 1975-01-27 AT AT57075A patent/AT346785B/en not_active IP Right Cessation
- 1975-01-27 BG BG028821A patent/BG24961A3/en unknown
- 1975-01-27 DK DK24875*#A patent/DK24875A/da not_active Application Discontinuation
- 1975-01-28 JP JP50011818A patent/JPS5838160B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1456260A (en) | 1976-11-24 |
| BE824362A (en) | 1975-05-02 |
| YU36540B (en) | 1984-02-29 |
| HU174513B (en) | 1980-01-28 |
| ES433589A1 (en) | 1977-02-16 |
| CS207335B2 (en) | 1981-07-31 |
| NL7417006A (en) | 1975-07-30 |
| FR2259151A1 (en) | 1975-08-22 |
| JPS5838160B2 (en) | 1983-08-20 |
| DK24875A (en) | 1975-09-29 |
| JPS50105842A (en) | 1975-08-20 |
| FR2259151B1 (en) | 1979-04-13 |
| RO76829A (en) | 1981-11-04 |
| ATA57075A (en) | 1978-03-15 |
| PL102673B1 (en) | 1979-04-30 |
| BG24961A3 (en) | 1978-06-15 |
| DE2502558A1 (en) | 1975-07-31 |
| IE41769B1 (en) | 1980-03-26 |
| SE7500717L (en) | 1975-07-29 |
| FI58654C (en) | 1981-03-10 |
| AU7649374A (en) | 1976-07-01 |
| CA1030533A (en) | 1978-05-02 |
| NL186183C (en) | 1990-10-01 |
| IT1026412B (en) | 1978-09-20 |
| SE434407B (en) | 1984-07-23 |
| AT346785B (en) | 1978-11-27 |
| ZA7590B (en) | 1976-01-28 |
| DE2502558C2 (en) | 1981-10-08 |
| FI750158A (en) | 1975-07-29 |
| YU4275A (en) | 1982-02-25 |
| FI58654B (en) | 1980-11-28 |
| NL186183B (en) | 1990-05-01 |
| CH596318A5 (en) | 1978-03-15 |
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