GB1397945A - Process for the manufacture of inorganic acid addition salts of urea - Google Patents

Process for the manufacture of inorganic acid addition salts of urea

Info

Publication number
GB1397945A
GB1397945A GB2084872A GB2084872A GB1397945A GB 1397945 A GB1397945 A GB 1397945A GB 2084872 A GB2084872 A GB 2084872A GB 2084872 A GB2084872 A GB 2084872A GB 1397945 A GB1397945 A GB 1397945A
Authority
GB
United Kingdom
Prior art keywords
urea
drum
inorganic acid
manufacture
acid addition
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
GB2084872A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2084872A priority Critical patent/GB1397945A/en
Priority to IE62373A priority patent/IE37550B1/en
Priority to BE130558A priority patent/BE798880A/en
Priority to NL7306034A priority patent/NL7306034A/xx
Priority to AU55076/73A priority patent/AU5507673A/en
Priority to DE2322114A priority patent/DE2322114A1/en
Priority to IL7342168A priority patent/IL42168A0/en
Priority to IT7323672A priority patent/IT986994B/en
Priority to FR7315954A priority patent/FR2183238B3/fr
Priority to AR247870A priority patent/AR194432A1/en
Priority to ES414393A priority patent/ES414393A1/en
Priority to JP7349215A priority patent/JPS4947324A/ja
Publication of GB1397945A publication Critical patent/GB1397945A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fodder In General (AREA)
  • Feed For Specific Animals (AREA)

Abstract

1397945 Salts of urea with inorganic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 18 April 1973 [4 May 1972] 20848/72 Heading C2C Substantially dry crystals of addition compounds of urea with inorganic acids are made by introducing in substantially equimolar amounts a concentrated urea solution or melt at 110- 132‹ C. and a concentrated inorganic acid into one end of a drum fitted with longitudinal shaft and paddles, and agitating and propelling the mixture towards an outlet at the other end, while passing a heated gas through the drum. The urea solution is preferably at least 80% and the shell of the drum is preferably maintained by a heated jacket at a temperature not exceeding 100‹ C. The process is described with reference to phosphoric acid (50-70% P 2 O 5 ); possible use with sulphuric acid is mentioned.
GB2084872A 1972-05-04 1972-05-04 Process for the manufacture of inorganic acid addition salts of urea Expired GB1397945A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB2084872A GB1397945A (en) 1972-05-04 1972-05-04 Process for the manufacture of inorganic acid addition salts of urea
IE62373A IE37550B1 (en) 1972-05-04 1973-04-19 Process for the manufacture of inorganic acid addition salts of urea
BE130558A BE798880A (en) 1972-05-04 1973-04-27 PROCESS FOR THE PRODUCTION OF INORGANIC ACID ADDITION SALTS FROM UREA
NL7306034A NL7306034A (en) 1972-05-04 1973-05-01
AU55076/73A AU5507673A (en) 1972-05-04 1973-05-01 Process forthe manufacture of inorganic acid addition salts of urea
DE2322114A DE2322114A1 (en) 1972-05-04 1973-05-02 PROCESS FOR THE PRODUCTION OF INORGANIC ACID ADDITION SALT OF UREA
IL7342168A IL42168A0 (en) 1972-05-04 1973-05-02 Process for the manufacture of inorganic acid addition salts of urea
IT7323672A IT986994B (en) 1972-05-04 1973-05-03 PROCEDURE FOR THE PREPARATION OF ADDITION SALTS WITH INORGANIC ACIDS OF UREA
FR7315954A FR2183238B3 (en) 1972-05-04 1973-05-03
AR247870A AR194432A1 (en) 1972-05-04 1973-05-04 PROCEDURE FOR THE MANUFACTURE OF SUBSTANTIALLY DRY CRYSTALS OF INORGANIC UREA ACID ADDITION SALTS
ES414393A ES414393A1 (en) 1972-05-04 1973-05-04 Process for the manufacture of inorganic acid addition salts of urea
JP7349215A JPS4947324A (en) 1972-05-04 1973-05-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2084872A GB1397945A (en) 1972-05-04 1972-05-04 Process for the manufacture of inorganic acid addition salts of urea

Publications (1)

Publication Number Publication Date
GB1397945A true GB1397945A (en) 1975-06-18

Family

ID=10152748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2084872A Expired GB1397945A (en) 1972-05-04 1972-05-04 Process for the manufacture of inorganic acid addition salts of urea

Country Status (11)

Country Link
JP (1) JPS4947324A (en)
AR (1) AR194432A1 (en)
AU (1) AU5507673A (en)
BE (1) BE798880A (en)
DE (1) DE2322114A1 (en)
ES (1) ES414393A1 (en)
FR (1) FR2183238B3 (en)
GB (1) GB1397945A (en)
IL (1) IL42168A0 (en)
IT (1) IT986994B (en)
NL (1) NL7306034A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111635337A (en) * 2020-06-08 2020-09-08 杭州海虹精细化工有限公司 Preparation method of modified urea

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516352U (en) * 1974-07-02 1976-01-17
DE3170675D1 (en) * 1980-02-22 1985-07-04 Ciba Geigy Ag Method of processing photographic silver dye bleaching materials, compositions suitable for it and their preparation from concentrates or partial concentrates, the concentrates and partial concentrates
JPH02118272A (en) * 1988-10-28 1990-05-02 Tokyo Electron Ltd Bellows

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111635337A (en) * 2020-06-08 2020-09-08 杭州海虹精细化工有限公司 Preparation method of modified urea

Also Published As

Publication number Publication date
ES414393A1 (en) 1976-02-01
IL42168A0 (en) 1973-07-30
AU5507673A (en) 1974-11-07
IT986994B (en) 1975-01-30
NL7306034A (en) 1973-11-06
JPS4947324A (en) 1974-05-08
FR2183238B3 (en) 1976-04-23
DE2322114A1 (en) 1973-12-06
FR2183238A1 (en) 1973-12-14
AR194432A1 (en) 1973-07-13
BE798880A (en) 1973-10-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee