AU2826589A – Cyclical reductive and oxidative decomposition of calcium sulfate in two-stage fluidized bed reactor
– Google Patents
AU2826589A – Cyclical reductive and oxidative decomposition of calcium sulfate in two-stage fluidized bed reactor
– Google Patents
Cyclical reductive and oxidative decomposition of calcium sulfate in two-stage fluidized bed reactor
Info
Publication number
AU2826589A
AU2826589A
AU28265/89A
AU2826589A
AU2826589A
AU 2826589 A
AU2826589 A
AU 2826589A
AU 28265/89 A
AU28265/89 A
AU 28265/89A
AU 2826589 A
AU2826589 A
AU 2826589A
AU 2826589 A
AU2826589 A
AU 2826589A
Authority
AU
Australia
Prior art keywords
cyclical
reductive
fluidized bed
bed reactor
calcium sulfate
Prior art date
1987-12-07
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.)
Granted
Application number
AU28265/89A
Inventor
Thomas D. Wheelock
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.)
Iowa State University Research Foundation ISURF
Original Assignee
University of Iowa Research Foundation UIRF
Iowa State University Research Foundation ISURF
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.)
1987-12-07
Filing date
1988-12-06
Publication date
1989-07-05
1988-12-06
Application filed by University of Iowa Research Foundation UIRF, Iowa State University Research Foundation ISURF
filed
Critical
University of Iowa Research Foundation UIRF
1989-07-05
Publication of AU2826589A
publication
Critical
patent/AU2826589A/en
Status
Granted
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F11/00—Compounds of calcium, strontium, or barium
C01F11/02—Oxides or hydroxides
C01F11/08—Oxides or hydroxides by reduction of sulfates
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to «fluidised-bed» technique
B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to «fluidised-bed» technique with two or more fluidised beds, e.g. reactor and regeneration installations
B01J8/28—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to «fluidised-bed» technique with two or more fluidised beds, e.g. reactor and regeneration installations the one above the other
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
C01B17/48—Sulfur dioxide; Sulfurous acid
C01B17/50—Preparation of sulfur dioxide
C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/00—Technologies relating to chemical industry
Y02P20/10—Process efficiency
Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
AU28265/89A
1987-12-07
1988-12-06
Cyclical reductive and oxidative decomposition of calcium sulfate in two-stage fluidized bed reactor
Granted
AU2826589A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US12964587A
1987-12-07
1987-12-07
US129645
1998-08-05
Publications (1)
Publication Number
Publication Date
AU2826589A
true
AU2826589A
(en)
1989-07-05
Family
ID=22440950
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU28265/89A
Granted
AU2826589A
(en)
1987-12-07
1988-12-06
Cyclical reductive and oxidative decomposition of calcium sulfate in two-stage fluidized bed reactor
Country Status (2)
Country
Link
AU
(1)
AU2826589A
(en)
WO
(1)
WO1989005282A1
(en)
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US6083862A
(en)
*
1994-03-14
2000-07-04
Iowa State University Research Foundation, Inc.
Cyclic process for oxidation of calcium sulfide
PL186189B1
(en)
*
1997-06-23
2003-11-28
Kosicka Dobroslawa
Method of processing phosphate gypsum wastes
JP6090394B2
(en)
*
2015-08-28
2017-03-08
住友金属鉱山株式会社
Method for producing scandium oxide
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3582276A
(en)
*
1968-07-22
1971-06-01
Elcor Chem Corp
Process for recovering a metal oxide and sulfur dioxide from metal sulfate
US3607045A
(en)
*
1969-10-29
1971-09-21
Univ Iowa State Res Found Inc
Process for high temperature gaseous reduction of calcium sulfate
US3729551A
(en)
*
1971-01-07
1973-04-24
Cons Coal Co
Conversion of calcium sulfate to calcium oxide and elemental sulfur
CA1061987A
(en)
*
1974-05-15
1979-09-11
Iowa State University Research Foundation, Inc.
Decomposition of calcium sulfate by zoned reduction and oxidation in a fluidized bed
US4608238A
(en)
*
1984-07-27
1986-08-26
Wilson Sr Eddie K
Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acid
1988
1988-12-06
WO
PCT/US1988/004360
patent/WO1989005282A1/en
unknown
1988-12-06
AU
AU28265/89A
patent/AU2826589A/en
active
Granted
Also Published As
Publication number
Publication date
WO1989005282A1
(en)
1989-06-15
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