AT291312B - Process for reducing the hygroscopic water absorption of urea grains - Google Patents

Process for reducing the hygroscopic water absorption of urea grains

Info

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
Application number
AT59270A
Other languages
German (de)
Original Assignee
Stamicarbon
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stamicarbon filed Critical Stamicarbon
Application granted granted Critical
Publication of AT291312B publication Critical patent/AT291312B/en

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)
AT59270A 1969-01-23 1970-01-22 Process for reducing the hygroscopic water absorption of urea grains AT291312B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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