BE528590A - - Google Patents

Info

Publication number
BE528590A
BE528590A BE528590DA BE528590A BE 528590 A BE528590 A BE 528590A BE 528590D A BE528590D A BE 528590DA BE 528590 A BE528590 A BE 528590A
Authority
BE
Belgium
Prior art keywords
urea
liquid
drops
melting
pipe
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE528590A publication Critical patent/BE528590A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02Preparation 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
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds
    • C05C9/005Post-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE528590D BE528590A (en, 2012)

Publications (1)

Publication Number Publication Date
BE528590A true BE528590A (en, 2012)

Family

ID=161851

Family Applications (1)

Application Number Title Priority Date Filing Date
BE528590D BE528590A (en, 2012)

Country Status (1)

Country Link
BE (1) BE528590A (en, 2012)

Similar Documents

Publication Publication Date Title
US4588414A (en) Countercurrent, cooling crystallization and purification method for multi-component molten mixture
CN1197637C (zh) 水溶液的冷冻浓缩
US2764488A (en) Method and apparatus for freezing solvents out of solutions
CN101668574B (zh) 浓缩稀溶液的方法和设备
US20110079044A1 (en) Method and apparatus using deliquescent filter for separating mixture
US6414194B1 (en) Process and apparatus for making ultra-pure DMSO
US4143524A (en) Process and apparatus for separating crystallizable materials from a multi-component system
US4578093A (en) Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein
KR20080084754A (ko) 인산이 풍부한 스트림의 정제
US2685783A (en) Method of and apparatus for dehydrating by freezing
FR2549385A1 (fr) Appareil pour purifier des cristaux, notamment du naphtalene ou derives, ou analogues
EP0273509A1 (en) Process- and apparatus for recovering a pure substance from a liquid mixture by crystallization
BE528590A (en, 2012)
US20140346126A1 (en) Method and system using melting filter for separating mixture
KR20010042375A (ko) 폐기산 수거
JP4188085B2 (ja) 高濃縮過酸化水素を製造するための連続的方法、高濃縮過酸化水素およびその使用
US4687671A (en) Concentration method
BE472116A (fr) Fabrication de chlorure de calcium
KR100327679B1 (ko) 미세과립을제조하는방법
US4650507A (en) Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein
US4116652A (en) Process for the freeze concentration of solutions
JP2001505485A (ja) 懸濁結晶化法
FR2519334A1 (fr) Procede de fabrication d'un engrais complexe granulaire
US4809519A (en) Methods and apparatuses for conducting solid-liquid-vapor multiple phase transformation operations
JP2002172301A (ja) 水溶液の凍結濃縮方法