NL152546B - Werkwijze voor het in twee trappen concentreren van een waterhoudende ureumoplossing tot een nagenoeg van water vrij gesmolten ureum. - Google Patents
Werkwijze voor het in twee trappen concentreren van een waterhoudende ureumoplossing tot een nagenoeg van water vrij gesmolten ureum.Info
- Publication number
- NL152546B NL152546B NL717109106A NL7109106A NL152546B NL 152546 B NL152546 B NL 152546B NL 717109106 A NL717109106 A NL 717109106A NL 7109106 A NL7109106 A NL 7109106A NL 152546 B NL152546 B NL 152546B
- Authority
- NL
- Netherlands
- Prior art keywords
- urea
- concentrating
- stages
- procedure
- water
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 2
- 239000004202 carbamide Substances 0.000 title 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title 1
- 239000001257 hydrogen Substances 0.000 title 1
- 229910052739 hydrogen Inorganic materials 0.000 title 1
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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Fertilizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45057413A JPS4916847B1 (enrdf_load_stackoverflow) | 1970-07-01 | 1970-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL7109106A NL7109106A (enrdf_load_stackoverflow) | 1972-01-04 |
NL152546B true NL152546B (nl) | 1977-03-15 |
Family
ID=13054945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL717109106A NL152546B (nl) | 1970-07-01 | 1971-07-01 | Werkwijze voor het in twee trappen concentreren van een waterhoudende ureumoplossing tot een nagenoeg van water vrij gesmolten ureum. |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4916847B1 (enrdf_load_stackoverflow) |
FR (1) | FR2099882A5 (enrdf_load_stackoverflow) |
NL (1) | NL152546B (enrdf_load_stackoverflow) |
SU (1) | SU422140A3 (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110559930B (zh) * | 2019-09-16 | 2021-11-30 | 山东益丰生化环保股份有限公司 | 一种车用尿素溶液及其制备方法 |
-
1970
- 1970-07-01 JP JP45057413A patent/JPS4916847B1/ja active Pending
-
1971
- 1971-06-24 FR FR7123006A patent/FR2099882A5/fr not_active Expired
- 1971-06-30 SU SU1677737A patent/SU422140A3/ru active
- 1971-07-01 NL NL717109106A patent/NL152546B/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2099882A5 (en) | 1972-03-17 |
JPS4916847B1 (enrdf_load_stackoverflow) | 1974-04-25 |
SU422140A3 (enrdf_load_stackoverflow) | 1974-03-30 |
NL7109106A (enrdf_load_stackoverflow) | 1972-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU464920B2 (en) | Improvements in or relating to injection lasers | |
NL165124C (nl) | Drager, in het bijzonder voor flessen. | |
BE752096A (fr) | Installatie voor het drogen van met een wagen aangevoerd gewas,zoals gras en dergelijke | |
NL151899B (nl) | Inrichting voor het tezamen met water toevoeren van ten minste twee vloeibare toevoegsels aan bijvoorbeeld een vaatwasmachine. | |
GB1343080A (en) | Solar cells | |
NL170124C (nl) | Werkwijze ter bereiding van waterstofperoxyde volgens het antrachinonprocede; werkwijze voor het bereiden van een viervoudig gesubstitueerd ureum. | |
NL152546B (nl) | Werkwijze voor het in twee trappen concentreren van een waterhoudende ureumoplossing tot een nagenoeg van water vrij gesmolten ureum. | |
KE2563A (en) | Improvements in or relating to electrochemical cells | |
GB1346225A (en) | Solid state electrochemical cells | |
AU463909B2 (en) | Improvements in or relating to mine roof supports | |
AU464738B2 (en) | Improvements in or relating to injection lasers | |
AU459066B2 (en) | Improvements in or relating to electrical power supply systems | |
NL172639C (nl) | Werkwijze voor het regenereren van een werkoplossing voor de bereiding van waterstofperoxyde. | |
SE385851B (sv) | Transportor med i spar forskjutbara lopvagnar | |
NL7412620A (nl) | Werkwijze voor het omzetten van alkenen in s. | |
GB1347300A (en) | Fuel cells | |
ZA711732B (en) | Improvements in or relating to inverters | |
ZA711440B (en) | Improvements in or relating to chemical closets | |
GRABKE et al. | INVESTIGATION ON THE DIFFUSION OF SULFUR IN METALS FOR THE CASE OF THE REACTION IN H 2 S-H 2 MIXTURES | |
ZA711343B (en) | Improvements in or relating to recombination systems for sealed batteries | |
AU453327B2 (en) | Improvements in or relating to solar generators for use in space vehicles | |
AU445254B2 (en) | Device for supplying thermal energy to one or more places to be heaed | |
AU449001B2 (en) | Improvements in or relating to collet chucks | |
IE35066B1 (en) | Power supply module | |
AU2614371A (en) | Improvements in or relating to solar generators for use in space vehicles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: MITSUI |