IN158998B - - Google Patents

Info

Publication number: IN158998B
Authority: IN; India
Prior art keywords: washing solution; formaline; formaldehyde; order; aqueous washing
Prior art date: 1982-01-07

Application number

IN944/DEL/82A

Other languages

English (en)

Inventor

Harald Storen

Original Assignee

Norsk Hydro As

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.)

1982-01-07

Filing date

1982-12-30

Publication date

1987-03-07

1982-12-30 Application filed by Norsk Hydro As filed Critical Norsk Hydro As

1987-03-07 Publication of IN158998B publication Critical patent/IN158998B/en

Links

WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 8
238000005406 washing Methods 0.000 abstract 4
239000007789 gas Substances 0.000 abstract 3
239000000203 mixture Substances 0.000 abstract 3
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
229910021529 ammonia Inorganic materials 0.000 abstract 1
239000004202 carbamide Substances 0.000 abstract 1
238000004140 cleaning Methods 0.000 abstract 1
239000000428 dust Substances 0.000 abstract 1
238000005469 granulation Methods 0.000 abstract 1
230000003179 granulation Effects 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
238000001139 pH measurement Methods 0.000 abstract 1
238000001556 precipitation Methods 0.000 abstract 1
230000001105 regulatory effect Effects 0.000 abstract 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
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/10—Venturi scrubbers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Treating Waste Gases (AREA)
Gas Separation By Absorption (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)

IN944/DEL/82A 1982-01-07 1982-12-30 IN158998B (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NO820030A NO150667C (no)	1982-01-07	1982-01-07	Fremgangsmaate for rensing av gassblandinger fra ureaproduksjonsanlegg

Publications (1)

Publication Number	Publication Date
IN158998B true IN158998B (fr)	1987-03-07

Family

ID=19886388

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IN944/DEL/82A IN158998B (fr)	1982-01-07	1982-12-30

Country Status (8)

Country	Link
US (1)	US4507129A (fr)
EP (1)	EP0084669B1 (fr)
AT (1)	ATE18202T1 (fr)
BR (1)	BR8300031A (fr)
CA (1)	CA1192381A (fr)
DE (1)	DE3269530D1 (fr)
IN (1)	IN158998B (fr)
NO (1)	NO150667C (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1249057B (it) *	1991-05-22	1995-02-11	Agrimont Spa	Processo per abbattere con un liquido l'ammoniaca contenuta in uno sfiato.
DK70693D0 (da) *	1993-06-14	1993-06-14	Niels Ole Vesterager	Fremgangsmaade til fjernelse af uoenskede stoffer i en gasart
FR2740355B1 (fr) *	1995-10-27	1998-01-16	Cos Ingenierie	Procede de depollution ammoniacale d'effluents liquides ou gazeux
TW201032887A (en) *	2009-01-13	2010-09-16	Saipem Spa	Process for the recovery of ammonia from a gaseous stream
EP2662349A1 (fr) *	2012-05-08	2013-11-13	Uhde Fertilizer Technology B.V.	Procédé de granulation d'urée avec un système d'épuration
CA2917304C (fr) *	2013-07-05	2020-09-15	Stamicarbon B.V.	Extraction de poussiere au stade final de la production d'uree
AU2014351079B2 (en) *	2013-11-15	2018-08-16	Stamicarbon B.V.	An apparatus and method for particulate capture from gas streams and a method of removing soluble particulate from a gas
AR103083A1 (es)	2014-12-19	2017-04-12	Stamicarbon	Eliminación de polvo en el acabado de urea
US10730002B2 (en)	2016-05-09	2020-08-04	Stamicarbon B.V.	Submicron particle removal from gas streams
JP7105863B2 (ja)	2017-07-14	2022-07-25	スタミカーボン・ベー・フェー	尿素仕上げ及びオフガス処理プラント並びにプロセス
CN107185332A (zh) *	2017-07-19	2017-09-22	郑金风	一种新型高效尿素回收洗涤塔
CN107854945A (zh) *	2017-12-05	2018-03-30	中国华电科工集团有限公司	一种烟气净化系统
WO2025244534A1 (fr) *	2024-05-23	2025-11-27	Stamicarbon B.V.	Granulé d'urée de qualité technique
WO2026037775A1 (fr) *	2024-08-14	2026-02-19	Casale Sa	Procédé de granulation d'urée et procédé de modernisation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE802457C (de) *	1947-07-30	1951-02-12	Basf Ag	Verfahren zur Herstellung von Hexamethylentetramin
US2977386A (en) *	1955-04-08	1961-03-28	Allied Chem	Absorption of formaldehyde in alkaline urea solution
DE1128849B (de) *	1959-09-14	1962-05-03	Ici Ltd	Verfahren zur Herstellung von feinkoernigem Harnstoff
SU504546A1 (ru) *	1973-11-14	1976-02-28		Способ автоматического управлени процессом абсорбции
IT1004432B (it) *	1974-03-28	1976-07-10	Snam Progetti	Procedimento per il recupero di pol veri ottenute da apparecchiature per il trattamento di materiali li quidi o solidi
GB1493612A (en) *	1974-07-06	1977-11-30	Fisons Ltd	Prilling
JPS5318466A (en) *	1976-08-05	1978-02-20	Mitsubishi Heavy Ind Ltd	Charging method for oxygen-containing hydrocarbons and/or their precursors into exhaust gas
US4104041A (en) *	1976-12-08	1978-08-01	Chiyoda Chemical Engineering & Construction Co., Ltd.	Apparatus and method for treating waste gas from urea prilling tower
JPS5378974A (en) *	1976-12-22	1978-07-12	Kouriyuu Kougiyou Kk	Method of collecting dusts generated in sintering plant

1982
- 1982-01-07 NO NO820030A patent/NO150667C/no unknown
- 1982-12-22 US US06/452,045 patent/US4507129A/en not_active Expired - Fee Related
- 1982-12-23 EP EP82111944A patent/EP0084669B1/fr not_active Expired
- 1982-12-23 AT AT82111944T patent/ATE18202T1/de not_active IP Right Cessation
- 1982-12-23 DE DE8282111944T patent/DE3269530D1/de not_active Expired
- 1982-12-24 CA CA000418638A patent/CA1192381A/fr not_active Expired
- 1982-12-30 IN IN944/DEL/82A patent/IN158998B/en unknown
1983
- 1983-01-05 BR BR8300031A patent/BR8300031A/pt unknown

Also Published As

Publication number	Publication date
EP0084669A1 (fr)	1983-08-03
US4507129A (en)	1985-03-26
ATE18202T1 (de)	1986-03-15
EP0084669B1 (fr)	1986-02-26
CA1192381A (fr)	1985-08-27
BR8300031A (pt)	1983-09-13
NO820030L (no)	1983-07-08
NO150667C (no)	1984-11-28
NO150667B (no)	1984-08-20
DE3269530D1 (en)	1986-04-03

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