PT95122A - Processo para a recuperacao de acido nitrico - Google Patents

Processo para a recuperacao de acido nitrico

Info

Publication number: PT95122A
Authority: PT; Portugal
Prior art keywords: acid; nitroaromatics; spent; nitric acid; temperature
Prior art date: 1989-08-28

Application number

PT95122A

Other languages

English (en)

Other versions

PT95122B (pt

Inventor

David Leory Parks Jr

Carl Jonathan Martin

Original Assignee

Air Prod & Chem

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.)

1989-08-28

Filing date

1990-08-28

Publication date

1991-04-18

1990-08-28 Application filed by Air Prod & Chem filed Critical Air Prod & Chem

1991-04-18 Publication of PT95122A publication Critical patent/PT95122A/pt

1997-05-28 Publication of PT95122B publication Critical patent/PT95122B/pt

Links

GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title abstract 5
229910017604 nitric acid Inorganic materials 0.000 title abstract 5
238000000034 method Methods 0.000 title abstract 4
238000011084 recovery Methods 0.000 title abstract 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 8
239000002253 acid Substances 0.000 abstract 8
239000000203 mixture Substances 0.000 abstract 4
239000007788 liquid Substances 0.000 abstract 2
150000001491 aromatic compounds Chemical class 0.000 abstract 1
125000003118 aryl group Chemical group 0.000 abstract 1
238000009835 boiling Methods 0.000 abstract 1
150000001875 compounds Chemical class 0.000 abstract 1
238000010438 heat treatment Methods 0.000 abstract 1
238000006396 nitration reaction Methods 0.000 abstract 1
230000008929 regeneration Effects 0.000 abstract 1
238000011069 regeneration method Methods 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/38—Nitric acid
- C01B21/46—Purification; Separation ; Stabilisation
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/38—Steam distillation

Landscapes

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

PT95122A 1989-08-28 1990-08-28 Processo para a recuperacao de acido nitrico PT95122B (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/399,654 US5006325A (en)	1989-08-28	1989-08-28	Process for the recovery of nitric acid

Publications (2)

Publication Number	Publication Date
PT95122A true PT95122A (pt)	1991-04-18
PT95122B PT95122B (pt)	1997-05-28

Family

ID=23580414

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT95122A PT95122B (pt)	1989-08-28	1990-08-28	Processo para a recuperacao de acido nitrico

Country Status (8)

Country	Link
US (1)	US5006325A (pt)
EP (1)	EP0415354B1 (pt)
JP (1)	JPH0641368B2 (pt)
KR (1)	KR920004182B1 (pt)
AR (1)	AR242759A1 (pt)
BR (1)	BR9004157A (pt)
DE (1)	DE69014482T2 (pt)
PT (1)	PT95122B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19512114C2 (de) *	1995-04-04	2000-04-27	Meissner Gmbh & Co Kg Josef	Rückgewinnung von Salpetersäure aus Nitrierprozessen
FR2767318B1 (fr) *	1997-08-13	1999-10-29	Rhodia Chimie Sa	Procede de recuperation d'acide nitrique compris dans un melange de composes aromatiques dinitres
DE102005050106B4 (de)	2005-10-18	2008-04-30	Josef Meissner Gmbh & Co. Kg	Rückgewinnung von Nitriersäuregemischen aus Nitrienprozessen
CN109467065B (zh) *	2018-11-30	2023-09-19	中冶南方工程技术有限公司	一种不锈钢混酸废液再生酸设备
JP6729981B1 (ja) *	2019-05-24	2020-07-29	東芝エレベータ株式会社	エレベータの操作ボタンおよび操作ボタンの操作情報出力方法
CN110950312A (zh) *	2019-12-19	2020-04-03	天门楚天生物科技有限公司	一次硝化和二次硝化母液综合处理的方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1793304A (en) *	1927-02-19	1931-02-17	Gen Electric	Process for purifying nitrobenzene
US2739174A (en) *	1951-09-08	1956-03-20	Eastman Kodak Co	Nitrating aromatic hydrocarbons with only nitric acid
US2849497A (en) *	1956-10-10	1958-08-26	Du Pont	Preparation of nitrobenzene
DE1129466B (de) *	1960-04-30	1962-05-17	Bayer Ag	Verfahren zum Mononitrieren von technischem Benzol, Xylol und Toluol, welche den ueblichen Gehalt an aliphatischen Kohlenwasserstoffen aufweisen
US3780116A (en) *	1972-06-15	1973-12-18	Zaverchand & Co	Method for nitration of aromatic hydrocarbon compounds
DE2338479C3 (de) *	1973-07-28	1980-06-04	Basf Ag, 6700 Ludwigshafen	Verfahren zur Aufarbeitung von Nitrierungsprodukte enthaltender Salpetersäure
US3928475A (en) *	1974-08-09	1975-12-23	Du Pont	Azeotropic nitration of benzene
US4021498A (en) *	1975-12-09	1977-05-03	American Cyanamid Company	Adiabatic process for nitration of nitratable aromatic compounds
DE2704680A1 (de) *	1977-02-04	1978-08-10	Bayer Ag	Verfahren zur gewinnung von aromatischen dinitroverbindungen
US4257986A (en) *	1979-02-02	1981-03-24	Air Products And Chemicals, Inc.	Process for refining aqueous acid mixtures utilized in nitration of aromatics
US4496782A (en) *	1983-07-08	1985-01-29	Air Products And Chemicals, Inc.	Nitric acid recovery by the adiabatic nitration of nitroaromatics with fortified spent acid
US4642396A (en) *	1984-08-07	1987-02-10	Air Products And Chemicals, Inc.	Process for separating nitroaromatic compounds from spent nitric acid
US4650912A (en) *	1985-03-26	1987-03-17	Air Products And Chemicals, Inc.	Recovery of nitric acid from nitration spent acid by toluene extraction
JPS6317849A (ja) *	1986-07-11	1988-01-25	Mitsui Toatsu Chem Inc	高純度ペンタクロロニトロベンゼンの取得方法

1989
- 1989-08-28 US US07/399,654 patent/US5006325A/en not_active Expired - Lifetime
1990
- 1990-08-22 BR BR909004157A patent/BR9004157A/pt not_active IP Right Cessation
- 1990-08-27 JP JP2222698A patent/JPH0641368B2/ja not_active Expired - Lifetime
- 1990-08-27 KR KR1019900013204A patent/KR920004182B1/ko not_active IP Right Cessation
- 1990-08-28 EP EP90116490A patent/EP0415354B1/en not_active Expired - Lifetime
- 1990-08-28 DE DE69014482T patent/DE69014482T2/de not_active Expired - Fee Related
- 1990-08-28 PT PT95122A patent/PT95122B/pt not_active IP Right Cessation
- 1990-08-28 AR AR90317701A patent/AR242759A1/es active

Also Published As

Publication number	Publication date
JPH0641368B2 (ja)	1994-06-01
EP0415354A3 (en)	1992-01-02
EP0415354B1 (en)	1994-11-30
US5006325A (en)	1991-04-09
JPH03103316A (ja)	1991-04-30
DE69014482T2 (de)	1995-04-20
BR9004157A (pt)	1991-11-12
KR920004182B1 (ko)	1992-05-30
AR242759A1 (es)	1993-05-31
EP0415354A2 (en)	1991-03-06
DE69014482D1 (de)	1995-01-12
PT95122B (pt)	1997-05-28
KR910004465A (ko)	1991-03-28

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Legal Events

Date

Code

Title

Description

1991-04-18

BB1A

Laying open of patent application

Effective date: 19901211

1997-05-30

FG3A

Patent granted, date of granting

Effective date: 19970218

1998-12-31

MM3A

Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19980831