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GB1304587A - - Google Patents

Info

Publication number
GB1304587A
GB1304587A GB1456670A GB1456670A GB1304587A GB 1304587 A GB1304587 A GB 1304587A GB 1456670 A GB1456670 A GB 1456670A GB 1456670 A GB1456670 A GB 1456670A GB 1304587 A GB1304587 A GB 1304587A
Authority
GB
United Kingdom
Prior art keywords
urea
march
slow
aldehyde
fertilizer
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
Application number
GB1456670A
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 filed Critical
Publication of GB1304587A publication Critical patent/GB1304587A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
    • 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
    • B01J2/003—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic followed by coating of the granules
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)

Abstract

1304587 Slow acting fertilizer VEBACHEMIE AG 25 March 1970 [29 March 1969] 14566/70 Heading C1B A slow-acting fertilizer comprises granules of urea having a protective coating consisting essentially of urea-aldehyde formed in situ by the reaction of urea and the aldehyde at the surface of the granules. A fertilizer other than urea may be included with the urea.
GB1456670A 1969-03-29 1970-03-25 Expired GB1304587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691916368 DE1916368A1 (en) 1969-03-29 1969-03-29 Slow-acting fertilizers

Publications (1)

Publication Number Publication Date
GB1304587A true GB1304587A (en) 1973-01-24

Family

ID=5729845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1456670A Expired GB1304587A (en) 1969-03-29 1970-03-25

Country Status (6)

Country Link
AT (1) AT297062B (en)
BE (1) BE748111A (en)
DE (1) DE1916368A1 (en)
FR (1) FR2035983B1 (en)
GB (1) GB1304587A (en)
NL (1) NL7002249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025805C2 (en) * 2004-03-25 2005-09-27 Dsm Ip Assets Bv Process for the granulation of urea.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO148744C (en) * 1977-09-19 1983-12-07 Norsk Hydro As PROCEDURE FOR MANUFACTURING UREA WITH HIGH MECHANICAL STRENGTH

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB944875A (en) * 1959-09-14 1963-12-18 Ici Ltd Improvements in and relating to urea

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025805C2 (en) * 2004-03-25 2005-09-27 Dsm Ip Assets Bv Process for the granulation of urea.
WO2005092486A1 (en) * 2004-03-25 2005-10-06 Dsm Ip Assets B.V. Urea granulation process
EA008602B1 (en) * 2004-03-25 2007-06-29 ДСМ Ай Пи ЭССЕТС Б.В. Urea granulation process
CN100551511C (en) * 2004-03-25 2009-10-21 帝斯曼知识产权资产管理有限公司 Urea granulation process

Also Published As

Publication number Publication date
NL7002249A (en) 1970-10-01
FR2035983B1 (en) 1974-05-03
DE1916368A1 (en) 1970-10-01
AT297062B (en) 1972-03-10
BE748111A (en) 1970-08-31
FR2035983A1 (en) 1970-12-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees