AU4543900A - Method for concentrating dilute acid - Google Patents

Method for concentrating dilute acid

Info

Publication number: AU4543900A
Authority: AU; Australia
Prior art keywords: dilute acid; concentrating dilute; concentrating; acid; dilute
Prior art date: 1999-05-05
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.): Abandoned

Application number

AU45439/00A

Inventor

Klaus Engels

Roland Fach

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.)

Venator Germany GmbH

Original Assignee

Sachtleben Chemie GmbH

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.)

1999-05-05

Filing date

2000-04-06

Publication date

2000-11-21

2000-04-06 Application filed by Sachtleben Chemie GmbH filed Critical Sachtleben Chemie GmbH

2000-11-21 Publication of AU4543900A publication Critical patent/AU4543900A/en

Status Abandoned legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

AU45439/00A 1999-05-05 2000-04-06 Method for concentrating dilute acid Abandoned AU4543900A (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19920695A DE19920695A1 (en)	1999-05-05	1999-05-05	Process for concentrating thin acid
DE19920695		1999-05-05
PCT/EP2000/003062 WO2000068141A1 (en)	1999-05-05	2000-04-06	Method for concentrating dilute acid

Publications (1)

Publication Number	Publication Date
AU4543900A true AU4543900A (en)	2000-11-21

Family

ID=7907066

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU45439/00A Abandoned AU4543900A (en)	1999-05-05	2000-04-06	Method for concentrating dilute acid

Country Status (5)

Country	Link
EP (1)	EP1189837B1 (en)
AU (1)	AU4543900A (en)
DE (2)	DE19920695A1 (en)
ES (1)	ES2203462T3 (en)
WO (1)	WO2000068141A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES2229842B1 (en) *	2002-05-18	2006-06-01	Gines Sanchez Gomez	CONTINUOUS DOSAGE SYSTEM AND PRESSURE COMPENSATION FOR CHEMICAL OR PHYSICAL-CHEMICAL REACTIONS DISPLACED BY PRESSURE.
CN104162285B (en) *	2014-07-31	2015-09-02	河南中原黄金冶炼厂有限责任公司	Multiple-effect rotation vapo(u)rization system
CN104759108B (en) *	2015-03-23	2016-05-04	河北乐恒化工设备制造有限公司	Three grades of continuous falling liquid film circulating and evaporating concentration systems with function of mechanical steam recompression
CN105854325A (en) *	2016-05-27	2016-08-17	苏州乔发环保科技股份有限公司	Triple-effect central cyclic evaporating system and evaporating technology thereof
CN106512459A (en) *	2016-12-16	2017-03-22	江西中医药大学	Concentrator based on vapor thermal gain technology
CN112439219A (en) *	2019-09-05	2021-03-05	中石油吉林化工工程有限公司	Four-effect evaporator for preparing acrylonitrile
CN111773749B (en) *	2020-07-13	2022-02-01	青岛海湾精细化工有限公司	Vacuum concentration system for dilute sulfuric acid
DE102020131827A1 (en)	2020-12-01	2022-06-02	Andreas Wilk	Device and method for concentrating corrosive liquids
CN118992985A (en) *	2023-05-22	2024-11-22	中国石油化工股份有限公司	Method for concentrating sulfuric acid solution

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4409064A (en) *	1978-10-16	1983-10-11	Air Products And Chemicals, Inc.	Process for concentrating sulfuric acid in an evaporator
EP0022181B1 (en) *	1979-06-13	1983-10-12	Bayer Ag	Process and apparatus for regenerating sulfuric acid
DE3738572A1 (en) *	1987-11-10	1989-05-18	Mannesmann Ag	Multistage evaporator system
DE3922105A1 (en) *	1989-07-05	1991-01-17	Bayer Ag	METHOD AND DEVICE FOR CONCENTRATING SULFURIC ACID CONTAINING METAL SULFATE
DE3927751A1 (en) *	1989-08-23	1991-02-28	Bayer Ag	METHOD FOR CONCENTRATING SULFURIC ACID CONTAINING METAL SULFATE
DE4029737C1 (en) *	1990-09-20	1991-12-05	Metallgesellschaft Ag, 6000 Frankfurt, De
US5275701A (en) *	1993-03-15	1994-01-04	Air Products And Chemicals, Inc.	Process for purification and concentration of sulfuric acid
DE19642328A1 (en) *	1996-10-14	1998-04-16	Bayer Ag	Process for the concentration of used sulfuric acids
DE19741511A1 (en) *	1997-09-20	1999-04-01	Metallgesellschaft Ag	Process for concentrating thin acid by utilizing process heat in a forced circulation evaporator system

1999
- 1999-05-05 DE DE19920695A patent/DE19920695A1/en not_active Withdrawn
2000
- 2000-04-06 EP EP00926819A patent/EP1189837B1/en not_active Expired - Lifetime
- 2000-04-06 DE DE50002849T patent/DE50002849D1/en not_active Expired - Lifetime
- 2000-04-06 ES ES00926819T patent/ES2203462T3/en not_active Expired - Lifetime
- 2000-04-06 WO PCT/EP2000/003062 patent/WO2000068141A1/en active IP Right Grant
- 2000-04-06 AU AU45439/00A patent/AU4543900A/en not_active Abandoned

Also Published As

Publication number	Publication date
EP1189837B1 (en)	2003-07-09
DE50002849D1 (en)	2003-08-14
ES2203462T3 (en)	2004-04-16
DE19920695A1 (en)	2000-11-16
EP1189837A1 (en)	2002-03-27
WO2000068141A1 (en)	2000-11-16

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Legal Events

Date	Code	Title	Description
2002-03-21	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase