DE2425581A1 - Verfahren zur harnstoffsynthese mit verbesserter waermerueckgewinnung und ammoniumcarbamatrueckfuehrung - Google Patents

Verfahren zur harnstoffsynthese mit verbesserter waermerueckgewinnung und ammoniumcarbamatrueckfuehrung

Info

Publication number: DE2425581A1
Authority: DE; Germany
Prior art keywords: urea; line; carbamate; decomposer; pressure
Prior art date: 1973-06-13
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.): Pending

Application number

DE19742425581

Other languages

German (de)

English (en)

Inventor

Ivo Mavrovic

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.)

Individual

Original Assignee

Individual

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.)

1973-06-13

Filing date

1974-05-27

Publication date

1975-01-09

1973-06-13 Priority claimed from US369756A external-priority patent/US3886210A/en

1974-05-27 Application filed by Individual filed Critical Individual

1975-01-09 Publication of DE2425581A1 publication Critical patent/DE2425581A1/de

Status Pending legal-status Critical Current

Links

239000004202 carbamide Substances 0.000 title claims description 128
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 125
238000000034 method Methods 0.000 title claims description 30
230000015572 biosynthetic process Effects 0.000 title claims description 22
238000003786 synthesis reaction Methods 0.000 title claims description 20
238000011084 recovery Methods 0.000 title description 7
238000004064 recycling Methods 0.000 title description 2
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title 1
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 83
KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 67
229910021529 ammonia Inorganic materials 0.000 claims description 40
238000000354 decomposition reaction Methods 0.000 claims description 31
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
239000007791 liquid phase Substances 0.000 claims description 21
238000006243 chemical reaction Methods 0.000 claims description 20
BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 13
KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 13
239000011541 reaction mixture Substances 0.000 claims description 13
239000012071 phase Substances 0.000 claims description 11
239000007788 liquid Substances 0.000 claims description 5
238000010438 heat treatment Methods 0.000 claims description 4
239000007795 chemical reaction product Substances 0.000 claims description 3
ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 2
239000001099 ammonium carbonate Substances 0.000 claims description 2
235000012501 ammonium carbonate Nutrition 0.000 claims description 2
229910052799 carbon Inorganic materials 0.000 claims description 2
239000000243 solution Substances 0.000 description 67
239000007789 gas Substances 0.000 description 50
239000000047 product Substances 0.000 description 48
239000000203 mixture Substances 0.000 description 35
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
238000009835 boiling Methods 0.000 description 8
239000012530 fluid Substances 0.000 description 7
239000001569 carbon dioxide Substances 0.000 description 4
229910002092 carbon dioxide Inorganic materials 0.000 description 4
238000001704 evaporation Methods 0.000 description 4
230000008020 evaporation Effects 0.000 description 4
239000007864 aqueous solution Substances 0.000 description 3
238000009833 condensation Methods 0.000 description 3
230000005494 condensation Effects 0.000 description 3
239000011261 inert gas Substances 0.000 description 3
238000005192 partition Methods 0.000 description 3
241000237983 Trochidae Species 0.000 description 2
239000006096 absorbing agent Substances 0.000 description 2
150000004657 carbamic acid derivatives Chemical class 0.000 description 2
238000002425 crystallisation Methods 0.000 description 2
230000008025 crystallization Effects 0.000 description 2
230000001105 regulatory effect Effects 0.000 description 2
241000196324 Embryophyta Species 0.000 description 1
235000008694 Humulus lupulus Nutrition 0.000 description 1
244000025221 Humulus lupulus Species 0.000 description 1
-1 amaoniuacarbamate Chemical compound 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
238000001816 cooling Methods 0.000 description 1
239000000498 cooling water Substances 0.000 description 1
230000018044 dehydration Effects 0.000 description 1
238000006297 dehydration reaction Methods 0.000 description 1
238000005553 drilling Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
230000014509 gene expression Effects 0.000 description 1
238000002156 mixing Methods 0.000 description 1
229910000069 nitrogen hydride Inorganic materials 0.000 description 1
238000010992 reflux Methods 0.000 description 1
239000002689 soil Substances 0.000 description 1
239000007858 starting material Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 1
150000003672 ureas Chemical class 0.000 description 1
210000002700 urine Anatomy 0.000 description 1
239000002912 waste gas Substances 0.000 description 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
- C07C273/04—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 from carbon dioxide and ammonia

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

DE19742425581 1973-06-13 1974-05-27 Verfahren zur harnstoffsynthese mit verbesserter waermerueckgewinnung und ammoniumcarbamatrueckfuehrung Pending DE2425581A1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US369756A US3886210A (en)	1970-06-29	1973-06-13	Urea synthesis with improved heat recovery and ammonium carbamate recirculation

Publications (1)

Publication Number	Publication Date
DE2425581A1 true DE2425581A1 (de)	1975-01-09

Family

ID=23456789

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE19742425581 Pending DE2425581A1 (de)	1973-06-13	1974-05-27	Verfahren zur harnstoffsynthese mit verbesserter waermerueckgewinnung und ammoniumcarbamatrueckfuehrung

Country Status (13)

Country	Link
JP (1)	JPS585189B2 (ja)
AR (1)	AR200786A1 (ja)
BE (1)	BE816142A (ja)
BR (1)	BR7404845D0 (ja)
CA (1)	CA1026374A (ja)
DE (1)	DE2425581A1 (ja)
ES (1)	ES426986A1 (ja)
FR (2)	FR2244755B1 (ja)
GB (1)	GB1423977A (ja)
IN (1)	IN140206B (ja)
IT (1)	IT1015048B (ja)
NL (1)	NL182219C (ja)
TR (1)	TR18243A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US11976895B2 (en)	2019-03-18	2024-05-07	Mitsubishi Electric Corporation	Plate heat exchanger and heat pump apparatus including the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5189A (en) *	1974-06-20	1976-01-05	Sakuhei Fujita	Magaripaipuniokeru anaakehoho

1974
- 1974-05-08 IN IN1025/CAL/74A patent/IN140206B/en unknown
- 1974-05-14 GB GB2138474A patent/GB1423977A/en not_active Expired
- 1974-05-27 DE DE19742425581 patent/DE2425581A1/de active Pending
- 1974-06-04 TR TR18243A patent/TR18243A/xx unknown
- 1974-06-05 ES ES426986A patent/ES426986A1/es not_active Expired
- 1974-06-05 AR AR254068A patent/AR200786A1/es active
- 1974-06-10 CA CA202,018A patent/CA1026374A/en not_active Expired
- 1974-06-10 BE BE145264A patent/BE816142A/xx unknown
- 1974-06-12 FR FR7420858A patent/FR2244755B1/fr not_active Expired
- 1974-06-12 IT IT23954/74A patent/IT1015048B/it active
- 1974-06-12 NL NLAANVRAGE7407873,A patent/NL182219C/xx not_active IP Right Cessation
- 1974-06-12 JP JP49066136A patent/JPS585189B2/ja not_active Expired
- 1974-06-12 BR BR4845/74A patent/BR7404845D0/pt unknown
1975
- 1975-02-19 FR FR7505586A patent/FR2272984B1/fr not_active Expired

Also Published As

Publication number	Publication date
BE816142A (fr)	1974-12-10
FR2272984A1 (ja)	1975-12-26
FR2272984B1 (ja)	1979-07-13
JPS585189B2 (ja)	1983-01-29
GB1423977A (en)	1976-02-04
NL182219C (nl)	1988-02-01
IN140206B (ja)	1976-09-25
NL182219B (nl)	1987-09-01
CA1026374A (en)	1978-02-14
ES426986A1 (es)	1976-09-01
BR7404845D0 (pt)	1975-09-30
FR2244755A1 (ja)	1975-04-18
TR18243A (tr)	1976-11-10
FR2244755B1 (ja)	1977-10-07
IT1015048B (it)	1977-05-10
NL7407873A (ja)	1974-12-17
JPS5035115A (ja)	1975-04-03
AR200786A1 (es)	1974-12-13

Legal Events

Date	Code	Title	Description
1980-03-20	OHJ	Non-payment of the annual fee

Publication	Publication Date	Title
DE2126776C3 (de)	1974-02-14	Verfahren und Vorrichtung zur Rückgewinnung von Ammoniak und Kohlendioxid aus einem wasserstoff- und sauerstoffhaltigen Abgas einer Harnstoffsynthese
EP0156199B1 (de)	1988-10-26	Verfahren zur Herstellung von Nitrobenzol
EP1685084B1 (de)	2012-05-09	Verfahren und vorrichtung zur gewinnung von stickstoffdünger aus organischen abfallprodukten
DE2654883C2 (ja)	1987-10-01
DE69708627T2 (de)	2002-08-08	Verfahren zur kombinierten Erzeugung von Ammoniak und Harnstoff
CH698707B1 (de)	2009-10-15	Vorrichtung zur Synthese von Harnstoff und Kit zum Nachrüsten einer bestehenden solchen Vorrichtung.
DE69200785T2 (de)	1995-05-11	Verfahren zur Herstellung von Harnstoff mit hoher Energieausbeute.
DE1290537B (de)	1969-03-13	Verfahren und Vorrichtung zur Rueckgewinnung nichtumgesetzter Reaktionsteilnehmer der Harnstoffsynthese
DE2241148C3 (de)	1981-10-01	Verfahren zur Herstellung von Harnstoff
DE2407019A1 (de)	1974-09-12	Verfahren zur rueckgewinnung von nichtumgesetztem ammoniumcarbamat bei der harnstoffsynthese
DE1157212B (de)	1963-11-14	Verfahren und Vorrichtung zur Harnstoffherstellung
DE2132081A1 (de)	1972-01-05	Verfahren zur Harnstoffsynthese
DE69520843T2 (de)	2001-12-20	Verfahren für die modernisierung einer anlage zur herstellung von harnstoff
DE2645251A1 (de)	1978-04-13	Verfahren und vorrichtung zur herstellung bzw. rueckgewinnung von alkanolamin aus einem oxazolidon enthaltenden gemisch
CH698261B1 (de)	2009-06-30	Vorrichtung zur Synthese von Harnstoff.
DE2425581A1 (de)	1975-01-09	Verfahren zur harnstoffsynthese mit verbesserter waermerueckgewinnung und ammoniumcarbamatrueckfuehrung
DE1299295B (de)	1969-07-17	Verfahren zur Herstellung von Harnstoff
DD233124A5 (de)	1986-02-19	Verfahren zur herstellung von harnstoff
DE4117171C1 (ja)	1992-06-25
DD201780A5 (de)	1983-08-10	Verfahren zur herstellung von harnstoff
DE2053487B2 (de)	1974-11-14	Verfahren zur Herstellung von Harnstoff aus den gasförmigen Zersetzungsprodukten der Melamin-Hochdrucksynthese
DD290858A5 (de)	1991-06-13	Industrielles verfahren zur abtrennung und rueckgewinnung von chlor
DE2733887A1 (de)	1978-02-09	Verfahren zur harnstoffsynthese mit rueckfuehrung eines produktnebenstroms
CH640200A5 (en)	1983-12-30	Process for producing magnesium oxide from an aqueous magnesium sulphate solution
DE1277841B (de)	1968-09-19	Verfahren zur Herstellung von Harnstoffen