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MY106697A - Process and apparatus for concentrating a liquid which contains sulfuric acid and water. - Google Patents

Process and apparatus for concentrating a liquid which contains sulfuric acid and water.

Info

Publication number
MY106697A
MY106697A MYPI90000493A MYPI19900493A MY106697A MY 106697 A MY106697 A MY 106697A MY PI90000493 A MYPI90000493 A MY PI90000493A MY PI19900493 A MYPI19900493 A MY PI19900493A MY 106697 A MY106697 A MY 106697A
Authority
MY
Malaysia
Prior art keywords
liquid
stage
processing
processing stage
sulfuric acid
Prior art date
Application number
MYPI90000493A
Inventor
Ditimar Heinz
Hohmann Klaus
Serrano-Velarde Ramiro
Original Assignee
Metallgesellschaft Ag
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6392409&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MY106697(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of MY106697A publication Critical patent/MY106697A/en

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

TWO HEATED PROCESSING STAGES AND A FLASHING STAGE FOR OBTAINING THE FINAL CONCENTRATION ARE USED TO CONCENTRATE A SALT-CONTAINING DILUTE SULFURIC ACID. THE FIRST PROCESSING STAGE CONSISTING OF EVAPORATING MEANS WHICH COMPRISE A CIRCUIT FOR CIRCULATING A LIQUID, AN INDIRECT HEAT EXCHANGER AND AN EVAPORATING VESSEL. THE SECOND PROCESSING STAGE CONSISTS OF ONE OR TWO OF SUCH EVAPORATING MEANS. THE LIQUID TO BE PROCESSED IS FIRST FED TO THE FIRST HEATED PROCESSING STAGE, IN WHICH THE HIGHEST TEMPERATURES ARE BETWEEN 50 AND 70?C. THE HIGHEST TEMPERATURES IN THE SECOND PROCESSING STAGE ARE BETWEEN 130 TO 160?C. THE SECOND PROCESSING STEAM IS HEATED WITH LIVE STEAM AND THE FIRST PROCESSING STAGE WITH VAPORS FROM THE SECOND STAGE. THE LIQUID WHICH IS WITHDRAWN FROM THE FLASHING ZONE HAS AN H2SO4 CONCENTRATION FROM 60 TO 80% BY WEIGHT, CALCULATED WITHOUT SOLIDS.
MYPI90000493A 1989-10-27 1990-03-29 Process and apparatus for concentrating a liquid which contains sulfuric acid and water. MY106697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3935892A DE3935892C2 (en) 1989-10-27 1989-10-27 Method and device for concentrating a liquid containing sulfuric acid and water

Publications (1)

Publication Number Publication Date
MY106697A true MY106697A (en) 1995-07-31

Family

ID=6392409

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI90000493A MY106697A (en) 1989-10-27 1990-03-29 Process and apparatus for concentrating a liquid which contains sulfuric acid and water.

Country Status (8)

Country Link
EP (1) EP0425000B2 (en)
JP (1) JPH03146408A (en)
AU (1) AU624540B2 (en)
BR (1) BR9005114A (en)
CA (1) CA2024547A1 (en)
DE (2) DE3935892C2 (en)
ES (1) ES2047829T5 (en)
MY (1) MY106697A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682398A5 (en) * 1991-09-13 1993-09-15 Escher Wyss Ag A method for saving energy in the production of titanium dioxide.
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
GB9816464D0 (en) * 1998-07-30 1998-09-23 Tioxide Group Services Ltd Process for the concentration of dilute sulphuric acid solutions
ATE265459T1 (en) 1999-09-28 2004-05-15 Otsuka Pharma Co Ltd TRIAZOLPURINE DERIVATIVES, DRUG COMPOSITIONS CONTAINING SAME AND AGENTS SHOWING AFFINITY FOR THE ADENOSINE A3 RECEPTOR
DE10024457A1 (en) * 2000-05-18 2001-11-29 Sachtleben Chemie Gmbh Preventing incrustation in recovery of sulfuric acid in titanium dioxide production by pre-concentrating the dilute acid to above 32-45 weight percent
ITPR20040050A1 (en) * 2004-07-20 2004-10-20 Fmc Technologies Italia Spa EVAPORATION PLANT FOR FRUITS AND VEGETABLE PRODUCTS WITH LOW ENERGY CONSUMPTION AND VERY LIMITED THERMAL DAMAGE.
WO2008003297A2 (en) * 2006-07-03 2008-01-10 Lailach Guenter Method and system for concentrating metal sulfate-containing sulfuric acid
JP6001328B2 (en) * 2012-05-23 2016-10-05 パンパシフィック・カッパー株式会社 Sulfuric acid acidic liquid concentration apparatus, sulfuric acid acidic liquid concentration method, and crude nickel sulfate recovery method
JP2016180187A (en) * 2016-07-05 2016-10-13 パンパシフィック・カッパー株式会社 Concentrating apparatus of sulfuric acid acidic solution, concentrating method of sulfuric acid acidic solution, and recovery method of crude nickel sulfate
DE102020131827A1 (en) * 2020-12-01 2022-06-02 Andreas Wilk Device and method for concentrating corrosive liquids
DE102023102313B4 (en) * 2023-01-31 2025-01-23 Mkr Metzger Gmbh Recyclingsysteme Device and method for the preparation of process medium
CN117339227A (en) * 2023-09-20 2024-01-05 龙佰襄阳钛业有限公司 A kind of concentrated waste acid acid preparation process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972412C (en) * 1951-06-01 1959-07-16 Metallgesellschaft Ag Process for the evaporation of sulfuric acid or similarly behaving solutions
DE1233368B (en) * 1962-08-13 1967-02-02 Heraeus Schott Quarzschmelze Process for the continuous distillation of sulfuric acid in apparatus made of ceramic materials
DE2632989A1 (en) * 1976-07-22 1978-02-02 Hoechst Ag PROCESS FOR REGENERATING SULFURIC ACID
DE2824010A1 (en) * 1978-06-01 1979-12-13 Metallgesellschaft Ag METHOD FOR CONCENTRATING DILUSED PHOSPHORIC ACID
EP0022181B1 (en) * 1979-06-13 1983-10-12 Bayer Ag Process and apparatus for regenerating sulfuric acid
DE3327769A1 (en) * 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen METHOD FOR THE TREATMENT OF THICK ACID
DE3632623A1 (en) * 1986-09-25 1988-03-31 Bayer Ag METHOD FOR CONCENTRATING SULFURIC ACID

Also Published As

Publication number Publication date
DE59003963D1 (en) 1994-02-03
JPH03146408A (en) 1991-06-21
DE3935892C2 (en) 1994-08-25
DE3935892A1 (en) 1991-05-02
EP0425000B1 (en) 1993-12-22
EP0425000B2 (en) 1996-11-27
ES2047829T5 (en) 1997-01-16
EP0425000A1 (en) 1991-05-02
AU6499290A (en) 1991-05-02
AU624540B2 (en) 1992-06-11
CA2024547A1 (en) 1991-04-28
ES2047829T3 (en) 1994-03-01
BR9005114A (en) 1991-09-17

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