GB1162514A - Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock - Google Patents

Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock

Info

Publication number
GB1162514A
GB1162514A GB38480/65A GB3848065A GB1162514A GB 1162514 A GB1162514 A GB 1162514A GB 38480/65 A GB38480/65 A GB 38480/65A GB 3848065 A GB3848065 A GB 3848065A GB 1162514 A GB1162514 A GB 1162514A
Authority
GB
United Kingdom
Prior art keywords
phosphoric acid
gypsum
phosphate rock
hemihydrate
solution
Prior art date
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.)
Expired
Application number
GB38480/65A
Inventor
Es A Van
A Waller
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.)
Albatros Super Fosfaatfabrieken NV
Original Assignee
Albatros Super Fosfaatfabrieken NV
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
Application filed by Albatros Super Fosfaatfabrieken NV filed Critical Albatros Super Fosfaatfabrieken NV
Priority to GB38480/65A priority Critical patent/GB1162514A/en
Priority to IL26394A priority patent/IL26394A/en
Priority to NL666612150A priority patent/NL153151B/en
Priority to FI2298/66A priority patent/FI44589B/fi
Priority to DE1542611A priority patent/DE1542611C3/en
Priority to FR75222A priority patent/FR1491767A/en
Priority to ES0330957A priority patent/ES330957A1/en
Priority to NO164589A priority patent/NO116160B/no
Priority to AT844766A priority patent/AT285526B/en
Priority to SU1101994A priority patent/SU389657A3/ru
Priority to BE686573D priority patent/BE686573A/xx
Priority to DK460166AA priority patent/DK138941B/en
Priority to SE6612066A priority patent/SE315575C/xx
Priority to OA52594A priority patent/OA02139A/en
Publication of GB1162514A publication Critical patent/GB1162514A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

1,162,514. Phosphoric acid and gypsum from phosphate rock. ALBATROS SUPERFOSFAATFABRIEKEN N.V. 6 Sept., 1966 [8 Sept., 1965], No. 38480/65. Heading C1A. Phosphoric acid and gypsum are obtained by acidulating phosphate rock with a mixture of phosphoric and sulphuric acids, to form a slurry of calcium sulphate hemihydrate crystals in a concentrated phosphoric acid solution, which latter is separated and withdrawn as product; the calcium sulphate hemihydrate crystals are washed with an aqueous liquid containing sulphuric acid with or without a minor amount of phosphoric acid, the composition and quantity of the washing liquid and the temperature being such as to prevent transformation of the hemihydrate to another crystal form and to make the liquid adhering to the washed crystals a suitable component for an aqueous recrystallization solution to which the hemihydrate is then transferred, and in which it is recrystallized to form gypsum. The recrystallisation solution, including the said component, contains 2 to 25% by weight of sulphuric acid, and less than 20% of phosphoric acid, calculated as P 2 O 5 .
GB38480/65A 1965-09-08 1965-09-08 Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock Expired GB1162514A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
GB38480/65A GB1162514A (en) 1965-09-08 1965-09-08 Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock
IL26394A IL26394A (en) 1965-09-08 1966-08-28 Process for the preparation of phosphoric acid and gypsum from phosphate rock
NL666612150A NL153151B (en) 1965-09-08 1966-08-29 CONTINUOUS PROCEDURE FOR THE PREPARATION OF PHOSPHORIC ACID AND GIPS FROM PHOSPHATE WATERTS.
FI2298/66A FI44589B (en) 1965-09-08 1966-09-02
DE1542611A DE1542611C3 (en) 1965-09-08 1966-09-05 Process for the continuous production of phosphoric acid and calcium sulfate dihydrate
FR75222A FR1491767A (en) 1965-09-08 1966-09-05 Process for preparing phosphoric acid and gypsum from crude phosphate
ES0330957A ES330957A1 (en) 1965-09-08 1966-09-07 A continuous procedure for the preparation of phosphoric acid and plaster. (Machine-translation by Google Translate, not legally binding)
NO164589A NO116160B (en) 1965-09-08 1966-09-07
AT844766A AT285526B (en) 1965-09-08 1966-09-07 Continuous process for the production of phosphonic acid and gypsum from phosphate minerals
SU1101994A SU389657A3 (en) 1965-09-08 1966-09-07
BE686573D BE686573A (en) 1965-09-08 1966-09-07
DK460166AA DK138941B (en) 1965-09-08 1966-09-07 Continuous process for the production of phosphoric acid and gypsum.
SE6612066A SE315575C (en) 1965-09-08 1966-09-08
OA52594A OA02139A (en) 1965-09-08 1966-09-12 Process for preparing phosphoric acid and gypsum from crude phosphate.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38480/65A GB1162514A (en) 1965-09-08 1965-09-08 Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock

Publications (1)

Publication Number Publication Date
GB1162514A true GB1162514A (en) 1969-08-27

Family

ID=10403731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38480/65A Expired GB1162514A (en) 1965-09-08 1965-09-08 Process for the preparation of Phosphoric Acid and Gypsum from Phosphate Rock

Country Status (13)

Country Link
AT (1) AT285526B (en)
BE (1) BE686573A (en)
DE (1) DE1542611C3 (en)
DK (1) DK138941B (en)
ES (1) ES330957A1 (en)
FI (1) FI44589B (en)
GB (1) GB1162514A (en)
IL (1) IL26394A (en)
NL (1) NL153151B (en)
NO (1) NO116160B (en)
OA (1) OA02139A (en)
SE (1) SE315575C (en)
SU (1) SU389657A3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653826A (en) * 1967-09-21 1972-04-04 Nissan Chemical Ind Ltd Process for the production of phosphoric acid at a high concentration and a gypsum by-product of improved quality
WO2003018480A1 (en) * 2001-08-24 2003-03-06 Purac Biochem B.V. Method for the preparation of lactic acid and calcium sulphate dihydrate
US6632966B2 (en) 2001-08-24 2003-10-14 Purac Biochem B.V. Method for the preparation of lactic acid and calcium sulphate dihydrate
CN111732086A (en) * 2020-07-31 2020-10-02 天宝动物营养科技股份有限公司 Process for preparing phosphoric acid and co-producing high-purity gypsum by semi-water-dihydrate method
CN116768171A (en) * 2023-06-28 2023-09-19 昆明川金诺化工股份有限公司 Process for producing high-quality semi-aqueous wet-process phosphoric acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2599525C1 (en) * 2015-04-23 2016-10-10 Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам имени профессора Я.В. Самойлова" (ОАО "НИУИФ") Method of producing wet-process phosphoric acid

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653826A (en) * 1967-09-21 1972-04-04 Nissan Chemical Ind Ltd Process for the production of phosphoric acid at a high concentration and a gypsum by-product of improved quality
WO2003018480A1 (en) * 2001-08-24 2003-03-06 Purac Biochem B.V. Method for the preparation of lactic acid and calcium sulphate dihydrate
US6632966B2 (en) 2001-08-24 2003-10-14 Purac Biochem B.V. Method for the preparation of lactic acid and calcium sulphate dihydrate
US6747173B2 (en) 2001-08-24 2004-06-08 Purac Biochem B.V. Method for the preparation of lactic acid and calcium sulphate dihydrate
CN100395224C (en) * 2001-08-24 2008-06-18 普拉克生化公司 Method for the preparation of lactic acid and calcium sulphate dihydrate
CN111732086A (en) * 2020-07-31 2020-10-02 天宝动物营养科技股份有限公司 Process for preparing phosphoric acid and co-producing high-purity gypsum by semi-water-dihydrate method
CN116768171A (en) * 2023-06-28 2023-09-19 昆明川金诺化工股份有限公司 Process for producing high-quality semi-aqueous wet-process phosphoric acid

Also Published As

Publication number Publication date
SE315575C (en) 1975-10-20
DK138941C (en) 1979-05-07
OA02139A (en) 1970-05-05
NO116160B (en) 1969-02-10
DK138941B (en) 1978-11-20
NL6612150A (en) 1967-03-09
AT285526B (en) 1970-10-27
DE1542611B2 (en) 1974-06-27
SE315575B (en) 1969-10-06
ES330957A1 (en) 1967-09-16
FI44589B (en) 1971-08-31
BE686573A (en) 1967-03-07
SU389657A3 (en) 1973-07-05
DE1542611C3 (en) 1978-05-11
IL26394A (en) 1970-02-19
DE1542611A1 (en) 1970-04-09
NL153151B (en) 1977-05-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee