CS204026B2 - Method of producing urea from pure carbon dioxide and ammonia - Google Patents

Method of producing urea from pure carbon dioxide and ammonia Download PDF

Info

Publication number: CS204026B2
Authority: CS; Czechoslovakia
Prior art keywords: ammonia; carbon dioxide; absorber; urea; reactor
Prior art date: 1977-03-31

Application number

CS782044A

Other languages

Czech (cs)

English (en)

Inventor

Giorgio Pagani

Andrea Bonetti

Original Assignee

Snam Progetti

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.)

1977-03-31

Filing date

1978-03-30

Publication date

1981-03-31

1978-03-30 Application filed by Snam Progetti filed Critical Snam Progetti

1981-03-31 Publication of CS204026B2 publication Critical patent/CS204026B2/cs

Links

QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 103
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 82
229910021529 ammonia Inorganic materials 0.000 title claims abstract description 41
229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 41
239000001569 carbon dioxide Substances 0.000 title claims abstract description 40
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 23
239000004202 carbamide Substances 0.000 title claims abstract description 23
238000000034 method Methods 0.000 title claims abstract description 17
239000006096 absorbing agent Substances 0.000 claims abstract description 31
238000003786 synthesis reaction Methods 0.000 claims abstract description 11
230000015572 biosynthetic process Effects 0.000 claims abstract description 10
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 6
KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 6
238000006243 chemical reaction Methods 0.000 claims description 6
238000000354 decomposition reaction Methods 0.000 claims description 4
238000004519 manufacturing process Methods 0.000 claims description 4
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
238000009833 condensation Methods 0.000 claims description 3
230000005494 condensation Effects 0.000 claims description 3
NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 2
239000007858 starting material Substances 0.000 abstract description 2
229910000069 nitrogen hydride Inorganic materials 0.000 abstract 1
239000000203 mixture Substances 0.000 description 9
239000007789 gas Substances 0.000 description 8
KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 6
238000010521 absorption reaction Methods 0.000 description 4
ZEYWAHILTZGZBH-UHFFFAOYSA-N azane;carbon dioxide Chemical compound N.O=C=O ZEYWAHILTZGZBH-UHFFFAOYSA-N 0.000 description 2
238000003776 cleavage reaction Methods 0.000 description 2
230000007423 decrease Effects 0.000 description 2
230000018044 dehydration Effects 0.000 description 2
238000006297 dehydration reaction Methods 0.000 description 2
238000010494 dissociation reaction Methods 0.000 description 2
230000005593 dissociations Effects 0.000 description 2
239000000047 product Substances 0.000 description 2
230000007017 scission Effects 0.000 description 2
ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
239000001099 ammonium carbonate Substances 0.000 description 1
235000012501 ammonium carbonate Nutrition 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
239000007859 condensation product Substances 0.000 description 1
238000006073 displacement reaction Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000020169 heat generation Effects 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000000126 substance 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)

CS782044A 1977-03-31 1978-03-30 Method of producing urea from pure carbon dioxide and ammonia CS204026B2 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT21904/77A IT1075371B (it)	1977-03-31	1977-03-31	Processo per la produzione di urea partendo da co2 e nh3 pure

Publications (1)

Publication Number	Publication Date
CS204026B2 true CS204026B2 (en)	1981-03-31

Family

ID=11188506

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CS782044A CS204026B2 (en)	1977-03-31	1978-03-30	Method of producing urea from pure carbon dioxide and ammonia

Country Status (20)

Country	Link
JP (1)	JPS53149929A (fr)
AR (1)	AR214002A1 (fr)
AU (1)	AU519725B2 (fr)
BE (1)	BE865585A (fr)
BR (1)	BR7802007A (fr)
CA (1)	CA1101884A (fr)
CH (1)	CH632240A5 (fr)
CS (1)	CS204026B2 (fr)
DD (1)	DD134223A5 (fr)
DE (1)	DE2813528C3 (fr)
DK (1)	DK140378A (fr)
ES (1)	ES469090A1 (fr)
FR (1)	FR2385690A1 (fr)
GB (1)	GB1586629A (fr)
IE (1)	IE46700B1 (fr)
IT (1)	IT1075371B (fr)
LU (1)	LU79340A1 (fr)
NL (1)	NL7803338A (fr)
PL (1)	PL108056B1 (fr)
SE (1)	SE7803685L (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE790015A (fr) *	1971-10-19	1973-04-12	Mavrovic Ivo	Synthese de l'uree avec conversion et recuperation de chaleur ameliorees

1977
- 1977-03-31 IT IT21904/77A patent/IT1075371B/it active
1978
- 1978-03-20 AU AU34291/78A patent/AU519725B2/en not_active Expired
- 1978-03-21 GB GB11243/78A patent/GB1586629A/en not_active Expired
- 1978-03-22 CA CA299,501A patent/CA1101884A/fr not_active Expired
- 1978-03-28 ES ES469090A patent/ES469090A1/es not_active Expired
- 1978-03-28 AR AR271575A patent/AR214002A1/es active
- 1978-03-29 DE DE2813528A patent/DE2813528C3/de not_active Expired
- 1978-03-29 NL NL7803338A patent/NL7803338A/xx not_active Application Discontinuation
- 1978-03-29 PL PL1978205651A patent/PL108056B1/pl unknown
- 1978-03-29 CH CH335878A patent/CH632240A5/it not_active IP Right Cessation
- 1978-03-30 LU LU79340A patent/LU79340A1/fr unknown
- 1978-03-30 CS CS782044A patent/CS204026B2/cs unknown
- 1978-03-30 IE IE636/78A patent/IE46700B1/en unknown
- 1978-03-30 DK DK140378A patent/DK140378A/da unknown
- 1978-03-30 FR FR7809361A patent/FR2385690A1/fr not_active Withdrawn
- 1978-03-31 JP JP3695778A patent/JPS53149929A/ja active Pending
- 1978-03-31 DD DD78204529A patent/DD134223A5/xx unknown
- 1978-03-31 SE SE7803685A patent/SE7803685L/xx unknown
- 1978-03-31 BE BE186482A patent/BE865585A/fr not_active IP Right Cessation
- 1978-03-31 BR BR7802007A patent/BR7802007A/pt unknown

Also Published As

Publication number	Publication date
SE7803685L (sv)	1978-10-01
FR2385690A1 (fr)	1978-10-27
PL205651A1 (pl)	1978-12-04
AU519725B2 (en)	1981-12-17
DK140378A (da)	1978-10-01
AU3429178A (en)	1979-09-27
AR214002A1 (es)	1979-04-11
DD134223A5 (de)	1979-02-14
BE865585A (fr)	1978-10-02
JPS53149929A (en)	1978-12-27
ES469090A1 (es)	1978-11-16
LU79340A1 (fr)	1978-07-13
DE2813528B2 (de)	1979-07-26
BR7802007A (pt)	1979-04-03
IT1075371B (it)	1985-04-22
CH632240A5 (en)	1982-09-30
DE2813528C3 (de)	1980-03-20
DE2813528A1 (de)	1978-10-12
GB1586629A (en)	1981-03-25
IE780636L (en)	1978-11-30
NL7803338A (nl)	1978-10-03
PL108056B1 (pl)	1980-03-31
CA1101884A (fr)	1981-05-26
IE46700B1 (en)	1983-08-24

Publication	Publication Date	Title
US4321410A (en)	1982-03-23	Method of stripping unreacted materials in urea synthesis process
US6231827B1 (en)	2001-05-15	Process for combined production of ammonia and urea
CN108026034B (zh)	2020-07-10	尿素制造方法以及尿素制造装置
SU833158A3 (ru)	1981-05-23	Способ синтеза мочевины и аммиака
EP3233792B1 (fr)	2019-09-04	Procédé de production d'urée
EP0213669A1 (fr)	1987-03-11	Procédé de préparation de l'urée
SU869551A3 (ru)	1981-09-30	Способ выделени аммиака и углекислоты из их смеси
US4235816A (en)	1980-11-25	Integrated ammonia-urea process
US3725210A (en)	1973-04-03	Method of removing unreacted materials remaining in urea synthesis effluent by plural stage distillation and co2 stripping
KR840001951A (ko)	1984-06-07	요소 합성법
US3197273A (en)	1965-07-27	Process for the continuous production of cyanogen chloride
US3759992A (en)	1973-09-18	Urea synthesis
US3114681A (en)	1963-12-17	Process of recovering unreacted ammonia from a urea synthesis melt by a two stage rectification operation
US4801747A (en)	1989-01-31	Process for preparing urea
US2808125A (en)	1957-10-01	Process for the separation of carbon dioxide and ammonia
CA1049556A (fr)	1979-02-27	Fabrication d'uree
US3527799A (en)	1970-09-08	Urea synthesis process
CS204026B2 (en)	1981-03-31	Method of producing urea from pure carbon dioxide and ammonia
US3137725A (en)	1964-06-16	Heat recovery in urea synthesis process
KR20030031569A (ko)	2003-04-21	멜라민 제조 방법
US2744133A (en)	1956-05-01	Process for the production of low-biuret content urea
US3471558A (en)	1969-10-07	Method for the decomposition and evaporation of urea synthesis effluent
US4365089A (en)	1982-12-21	Synthesis of urea
US3046307A (en)	1962-07-24	Distillation process for synthesizing
US3232982A (en)	1966-02-01	Urea synthesis