GB1314445A - Fertilizer compacts containing oxamide - Google Patents

Fertilizer compacts containing oxamide

Info

Publication number
GB1314445A
GB1314445A GB2598070A GB2598070A GB1314445A GB 1314445 A GB1314445 A GB 1314445A GB 2598070 A GB2598070 A GB 2598070A GB 2598070 A GB2598070 A GB 2598070A GB 1314445 A GB1314445 A GB 1314445A
Authority
GB
United Kingdom
Prior art keywords
compacts
formaldehyde
oxamide
fertilizer
urea
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
GB2598070A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1314445A publication Critical patent/GB1314445A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds

Landscapes

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

Abstract

1314445 Fertilizer compacts DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 29 May 1970 [31 May 1969] 25980/70 Heading C1B A process for producing fertilizer compacts comprises converting oxamide or a fertilizer composition containing oxamide into compacts, at least one NH- group-containing compound which is able to form a polymeric condensate with formaldehyde and at least one formaldehyde.yielding substance being added as solids either before or during conversion into compacts. Conversion into compacts may be by tabletting, extrusion or by granulation on a plate or in a drum. Suitable NH- groupcontaining compounds are urea, alkyl-, phenyl-, acetyl-, cyclic- or polymeric-ureas, urethanes, thioureas, cyanamide, dicyanamide, guanidines, aminotriazines, polyalkylene amines and ammonium cyanate. The formaldehyde-yielding substance may be paraformaldehyde, hexamethylene tetramine or granuform. The oxamide may be mixed with Thomas meal, superphosphate, potassium sulphate or quick-acting nitrogen fertilizers such as potassium nitrate or calcium nitrate. The compacts which are formed in this process are uniformly penetrated by a solid skeleton structure of a urea-formaldehyde condensate which leads to high compressive strength and abrasion resistance. However, the skeleton structure forms such a fine layer that it readily disintegrates under the influence of the soil. The urea : formaldehyde ratio may range from 2 : 1 to 1 : 10. If highly hygroscopic constituents are present, e.g. calcium nitrate, high disperse silica or active carbon may be added before or during compacting, in order to improve the free-flow properties of the material.
GB2598070A 1969-05-31 1970-05-29 Fertilizer compacts containing oxamide Expired GB1314445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691927846 DE1927846C3 (en) 1969-05-31 1969-05-31 Process for the manufacture of a fertilizer from oxamide

Publications (1)

Publication Number Publication Date
GB1314445A true GB1314445A (en) 1973-04-26

Family

ID=5735758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2598070A Expired GB1314445A (en) 1969-05-31 1970-05-29 Fertilizer compacts containing oxamide

Country Status (8)

Country Link
AT (1) AT312014B (en)
BE (1) BE751235A (en)
CA (1) CA962474A (en)
CH (1) CH560173A5 (en)
DE (1) DE1927846C3 (en)
FR (1) FR2043863B1 (en)
GB (1) GB1314445A (en)
NL (1) NL166004C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102304003A (en) * 2011-07-28 2012-01-04 江苏丹化煤制化学品工程技术有限公司 Oxalamide slow-release nitrogen fertilizer and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207952A (en) * 1978-07-05 1980-06-17 Natta Terry L Van Plow
DE3108962A1 (en) * 1981-03-10 1982-10-28 Hoechst Ag, 6000 Frankfurt METHOD FOR GRANULATING OXAMIDE
CN104447063B (en) * 2014-12-24 2017-11-10 上海大洋生态有机肥有限公司 Ureaformaldehyde charcoal base composite fertilizer and its clearance-type preparation method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351701A (en) * 1963-02-19 1964-02-07 Chem Fab Dr Reininghaus Fertilizer or seed treatment agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102304003A (en) * 2011-07-28 2012-01-04 江苏丹化煤制化学品工程技术有限公司 Oxalamide slow-release nitrogen fertilizer and preparation method thereof

Also Published As

Publication number Publication date
DE1927846A1 (en) 1970-12-03
FR2043863B1 (en) 1974-08-09
NL7007439A (en) 1970-12-02
NL166004C (en) 1981-06-15
CH560173A5 (en) 1975-03-27
DE1927846C3 (en) 1978-08-03
BE751235A (en) 1970-11-03
AT312014B (en) 1973-12-10
DE1927846B2 (en) 1977-12-01
CA962474A (en) 1975-02-11
FR2043863A1 (en) 1971-02-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee