AT291312B - Process for reducing the hygroscopic water absorption of urea grains - Google Patents
Process for reducing the hygroscopic water absorption of urea grainsInfo
- Publication number
- AT291312B AT291312B AT59270A AT59270A AT291312B AT 291312 B AT291312 B AT 291312B AT 59270 A AT59270 A AT 59270A AT 59270 A AT59270 A AT 59270A AT 291312 B AT291312 B AT 291312B
- Authority
- AT
- Austria
- Prior art keywords
- reducing
- water absorption
- hygroscopic water
- urea grains
- grains
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
- Fodder In General (AREA)
- Medicinal Preparation (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6901099.A NL159357B (en) | 1969-01-23 | 1969-01-23 | METHOD FOR REDUCING THE DYNAMIC HYGROSCOPICITY OF FERTILIZER GRAINS, AND THE GRAINS OBTAINED FROM THIS METHOD. |
Publications (1)
Publication Number | Publication Date |
---|---|
AT291312B true AT291312B (en) | 1971-07-12 |
Family
ID=19805945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT59270A AT291312B (en) | 1969-01-23 | 1970-01-22 | Process for reducing the hygroscopic water absorption of urea grains |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS4919260B1 (en) |
AT (1) | AT291312B (en) |
BE (1) | BE744890A (en) |
BR (1) | BR7016257D0 (en) |
DE (1) | DE2002824B2 (en) |
ES (1) | ES375779A1 (en) |
FR (1) | FR2030228A1 (en) |
GB (1) | GB1288333A (en) |
NL (1) | NL159357B (en) |
NO (1) | NO121955B (en) |
ZA (1) | ZA70334B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2305914B (en) * | 1995-10-06 | 1999-12-15 | Chown Peter A C | A slow release fertilizer product |
GB2330093B (en) * | 1997-10-10 | 2001-09-12 | Foster Clarke Robin Adrian | Coating fibrous or particulate animal litter |
DE102009025291A1 (en) * | 2009-06-15 | 2010-12-16 | Szaidel Cosmetic Gmbh | Cosmetic composition, useful for bleaching human hair, comprises drying additive comprising urea in beaded form, which is coated with a film former, where composition is in the form of finely divided, anhydrous and easy flowing powder |
CN103012019B (en) * | 2012-12-11 | 2014-10-29 | 吉林农业大学 | Urea slow release membrane material and preparation method thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR678452A (en) * | 1928-08-11 | 1930-03-24 | Ig Farbenindustrie Ag | Process for the manufacture of fertilizers which are preserved in a condition to be broadcast sown |
GB335175A (en) * | 1929-06-15 | 1930-09-15 | Ig Farbenindustrie Ag | Improvements in the manufacture and production of fertiliser salts which are capable of being stored |
GB575617A (en) * | 1942-12-02 | 1946-02-26 | Edgar Fajans | Waterproofing hygroscopic salts |
FR1132108A (en) * | 1954-07-16 | 1957-03-05 | Stamicarbon | Process for the production of urea granules |
FR1243658A (en) * | 1958-12-26 | 1960-10-14 | American Cyanamid Co | Urea particles and their preparation process |
FR1450420A (en) * | 1962-09-28 | 1966-06-24 | Sun Oil Co | New slow-acting fertilizers and process for their manufacture |
US3192033A (en) * | 1964-02-06 | 1965-06-29 | Sun Oil Co | Method of preparing a slow release urea fertilizer |
NL6411244A (en) * | 1964-09-26 | 1966-03-28 | ||
FR1469714A (en) * | 1965-02-23 | 1967-02-17 | Shell Int Research | Process for preparing fertilizer compositions |
-
1969
- 1969-01-23 NL NL6901099.A patent/NL159357B/en not_active IP Right Cessation
-
1970
- 1970-01-19 ZA ZA700334A patent/ZA70334B/en unknown
- 1970-01-21 GB GB294170A patent/GB1288333A/en not_active Expired
- 1970-01-22 AT AT59270A patent/AT291312B/en not_active IP Right Cessation
- 1970-01-22 ES ES375779A patent/ES375779A1/en not_active Expired
- 1970-01-22 NO NO0236/70A patent/NO121955B/no unknown
- 1970-01-22 DE DE2002824A patent/DE2002824B2/en active Granted
- 1970-01-23 BR BR216257/70A patent/BR7016257D0/en unknown
- 1970-01-23 JP JP45006231A patent/JPS4919260B1/ja active Pending
- 1970-01-23 FR FR7002483A patent/FR2030228A1/fr not_active Withdrawn
- 1970-01-23 BE BE744890D patent/BE744890A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2002824B2 (en) | 1973-10-25 |
DE2002824A1 (en) | 1970-07-30 |
GB1288333A (en) | 1972-09-06 |
NL159357B (en) | 1979-02-15 |
NO121955B (en) | 1971-05-03 |
ZA70334B (en) | 1971-01-27 |
ES375779A1 (en) | 1972-04-16 |
DE2002824C3 (en) | 1974-05-30 |
NL6901099A (en) | 1970-07-27 |
BE744890A (en) | 1970-07-23 |
BR7016257D0 (en) | 1973-05-10 |
JPS4919260B1 (en) | 1974-05-16 |
FR2030228A1 (en) | 1970-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |