GB801524A - Improvements in or relating to the treatment of starch - Google Patents
Improvements in or relating to the treatment of starchInfo
- Publication number
- GB801524A GB801524A GB27578/55A GB2757855A GB801524A GB 801524 A GB801524 A GB 801524A GB 27578/55 A GB27578/55 A GB 27578/55A GB 2757855 A GB2757855 A GB 2757855A GB 801524 A GB801524 A GB 801524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- starch
- treatment
- air
- followed
- chamber
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/08—Ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
In subjecting starch to chemical or physical treatments, the starch is treated in a fluidized condition, e.g. the starch is fed into a chamber having a porous base through which gas is driven into the chamber. To render the starch more freely flowing, it may be dried to a moisture content less than normal or it may be mixed with a small proportion of a substance such as silica gel. Examples are concerned with (i) acidifying and drying by treatment under reduced pressure with air and hydrogen chloride gas, followed by treatment at increasing temperatures up to 110 DEG C.; (ii) dextrinizing by such acid air treatment, followed by roasting at 180 DEG C.; (iii) neutralizing such dextrinized starch with an ammonia-air mixture and then moistening the product with humid air; (iv) etherification by treatment with an ethylene oxide-air mixture. Excessive dust formation in the treated product may be avoided by incorporation of a small proportion of a suitable liquid or solid hydrocarbon, e.g., paraffin wax.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL801524X | 1954-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB801524A true GB801524A (en) | 1958-09-17 |
Family
ID=19836413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27578/55A Expired GB801524A (en) | 1954-09-29 | 1955-09-28 | Improvements in or relating to the treatment of starch |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB801524A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768432A1 (en) * | 1997-09-12 | 1999-03-19 | Roquette Freres | PROCESS FOR TRANSFORMATION OF STARCH MATERIALS, STARCH MATERIALS THUS OBTAINED AND THEIR USES, ESPECIALLY IN THE MANUFACTURE OF PAPER, ADHESIVES OR GELIFIED PRODUCTS |
-
1955
- 1955-09-28 GB GB27578/55A patent/GB801524A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768432A1 (en) * | 1997-09-12 | 1999-03-19 | Roquette Freres | PROCESS FOR TRANSFORMATION OF STARCH MATERIALS, STARCH MATERIALS THUS OBTAINED AND THEIR USES, ESPECIALLY IN THE MANUFACTURE OF PAPER, ADHESIVES OR GELIFIED PRODUCTS |
| US6469161B1 (en) | 1997-09-12 | 2002-10-22 | Roquette Freres | Chemical fluidification process and conversion process of starchy materials, and new cationic starchy materials |
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