AU3798089A – Recovery of P2O5 values from hemihydrate crystals
– Google Patents
AU3798089A – Recovery of P2O5 values from hemihydrate crystals
– Google Patents
Recovery of P2O5 values from hemihydrate crystals
Info
Publication number
AU3798089A
AU3798089A
AU37980/89A
AU3798089A
AU3798089A
AU 3798089 A
AU3798089 A
AU 3798089A
AU 37980/89 A
AU37980/89 A
AU 37980/89A
AU 3798089 A
AU3798089 A
AU 3798089A
AU 3798089 A
AU3798089 A
AU 3798089A
Authority
AU
Australia
Prior art keywords
recovery
values
hemihydrate crystals
hemihydrate
crystals
Prior art date
1988-07-11
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
AU37980/89A
Other versions
AU616540B2
(en
Inventor
Fernando Ore
Thomas F. Richards
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.)
White Springs Agricultural Chemicals Inc
Original Assignee
White Springs Agricultural Chemicals Inc
White Springs Agricultural Chemicals Inc
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.)
1988-07-11
Filing date
1989-07-11
Publication date
1990-01-11
1989-07-11
Application filed by White Springs Agricultural Chemicals Inc, White Springs Agricultural Chemicals Inc
filed
Critical
White Springs Agricultural Chemicals Inc
1990-01-11
Publication of AU3798089A
publication
Critical
patent/AU3798089A/en
1991-10-31
Application granted
granted
Critical
1991-10-31
Publication of AU616540B2
publication
Critical
patent/AU616540B2/en
1996-07-25
Assigned to WHITE SPRINGS AGRICULTURAL CHEMICALS, INC.
reassignment
WHITE SPRINGS AGRICULTURAL CHEMICALS, INC.
Alteration of Name(s) in Register under S187
Assignors: OCCIDENTAL CHEMICAL CORPORATION
2009-07-11
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/18—Phosphoric acid
C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
C01B25/228—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen one form of calcium sulfate being formed and then converted to another form
C01B25/229—Hemihydrate-dihydrate process
C01B25/2295—Hemihydrate-dihydrate process the conversion being performed in one or more vessels different from those used for reaction after separation of phosphoric acid
AU37980/89A
1988-07-11
1989-07-11
Recovery of P2O5 values from hemihydrate crystals
Ceased
AU616540B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US07/217,186
US4853201A
(en)
1988-07-11
1988-07-11
Recovery of P2 O5 values from phosphoric acid hemihydrate crystals
US217186
1994-03-24
Publications (2)
Publication Number
Publication Date
AU3798089A
true
AU3798089A
(en)
1990-01-11
AU616540B2
AU616540B2
(en)
1991-10-31
Family
ID=22810005
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU37980/89A
Ceased
AU616540B2
(en)
1988-07-11
1989-07-11
Recovery of P2O5 values from hemihydrate crystals
Country Status (7)
Country
Link
US
(1)
US4853201A
(en)
CN
(1)
CN1018995B
(en)
AU
(1)
AU616540B2
(en)
BE
(1)
BE1001848A3
(en)
MA
(1)
MA21595A1
(en)
NL
(1)
NL8901781A
(en)
TN
(1)
TNSN89075A1
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CA2084086C
(en)
*
1990-05-28
2002-10-08
Steven M. Kuznicki
Large-pored molecular sieves containing at least one octahedral site and tetrahedral sites of at least one type
BE1019055A3
(en)
*
2009-12-02
2012-02-07
Prayon Technologies
PROCESS FOR PRODUCING PHOSPHORIC ACID
CN110902665B
(en)
*
2019-12-12
2022-11-15
昆明川金诺化工股份有限公司
Method for improving semi-hydrated phosphoric acid concentration and washing rate
CN112897490B
(en)
*
2021-04-02
2022-02-11
中国五环工程有限公司
Method for producing wet-process phosphoric acid by multi-recrystallization semi-water-dihydrate and semi-water-dihydrate wet-process phosphoric acid production system
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1092055A
(en)
*
1964-03-06
1967-11-22
Roman Chelminski
Process for the production of phosphoric acid
FR1409405A
(en)
*
1964-07-16
1965-08-27
Heurtey Sa
Process for the manufacture of phosphoric acid and apparatus for carrying out such a process
US3511602A
(en)
*
1967-04-19
1970-05-12
Elliot Bryant Fitch
Process for filtering phosphate rock acidulation slurries
GB1250191A
(en)
*
1968-07-04
1971-10-20
GB1278247A
(en)
*
1968-11-15
1972-06-21
Fisons Ltd
Phosphoric acid
BE756759A
(en)
*
1969-09-30
1971-03-29
Pechiney Saint Gobain
PROCESS FOR THE MANUFACTURING OF WET PHOSPHORIC ACID AND CALCIUM SULPHATE OF IMPROVED QUALITY
US4196172A
(en)
*
1976-07-07
1980-04-01
Occidental Petroleum Corporation
Hemihydrate type phosphoric acid process
DE146443C
(en)
*
1976-07-07
Occidental Petroleum Corp
US4220630A
(en)
*
1978-01-04
1980-09-02
Occidental Petroleum Corporation
Hemihydrate type process for phosphoric acid manufacture using additive to improve filterability
US4522918A
(en)
*
1981-12-15
1985-06-11
Jeffery Schlom
Process for producing monoclonal antibodies reactive with human breast cancer
1988
1988-07-11
US
US07/217,186
patent/US4853201A/en
not_active
Expired – Lifetime
1989
1989-07-07
BE
BE8900748A
patent/BE1001848A3/en
not_active
IP Right Cessation
1989-07-10
CN
CN89104791.3A
patent/CN1018995B/en
not_active
Expired
1989-07-10
TN
TNTNSN89075A
patent/TNSN89075A1/en
unknown
1989-07-10
MA
MA21845A
patent/MA21595A1/en
unknown
1989-07-11
AU
AU37980/89A
patent/AU616540B2/en
not_active
Ceased
1989-07-11
NL
NL8901781A
patent/NL8901781A/en
not_active
Application Discontinuation
Also Published As
Publication number
Publication date
CN1039776A
(en)
1990-02-21
US4853201A
(en)
1989-08-01
AU616540B2
(en)
1991-10-31
MA21595A1
(en)
1990-04-01
BE1001848A3
(en)
1990-03-20
TNSN89075A1
(en)
1991-02-04
NL8901781A
(en)
1990-02-01
CN1018995B
(en)
1992-11-11
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