CA1084236A - Procede d'obtention de phosphogypse defluore, en granules - Google Patents

Procede d'obtention de phosphogypse defluore, en granules

Info

Publication number: CA1084236A
Authority: CA; Canada
Prior art keywords: phosphogypsum; range; granules; amounts; binding additives
Prior art date: 1977-06-16
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

CA280,739A

Other languages

English (en)

Inventor

Ivan N. Grancharov

Fanka D. Tudjarova

Yovka P. Bakalova

Yoncho G. Pelovski

Nikola B. Videnov

Ivan P. Dombalov

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.)

VISH CHIMIKO-TECHNOLOGICHESKI INSTITUTE

Original Assignee

VISH CHIMIKO-TECHNOLOGICHESKI INSTITUTE

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.)

1977-06-16

Filing date

1977-06-16

Publication date

1980-08-26

1977-06-16 Application filed by VISH CHIMIKO-TECHNOLOGICHESKI INSTITUTE filed Critical VISH CHIMIKO-TECHNOLOGICHESKI INSTITUTE

1977-06-16 Priority to CA280,739A priority Critical patent/CA1084236A/fr

1980-08-26 Application granted granted Critical

1980-08-26 Publication of CA1084236A publication Critical patent/CA1084236A/fr

Status Expired legal-status Critical Current

Links

PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 26
238000000034 method Methods 0.000 title claims abstract description 22
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 17
238000012545 processing Methods 0.000 claims abstract description 11
239000000654 additive Substances 0.000 claims abstract description 10
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 9
238000005469 granulation Methods 0.000 claims abstract description 9
230000003179 granulation Effects 0.000 claims abstract description 9
239000012530 fluid Substances 0.000 claims abstract description 8
239000008187 granular material Substances 0.000 claims abstract description 8
239000007789 gas Substances 0.000 claims abstract description 7
238000004519 manufacturing process Methods 0.000 claims abstract description 7
YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 6
ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims abstract description 6
238000001035 drying Methods 0.000 claims abstract description 6
238000010438 heat treatment Methods 0.000 claims abstract description 6
238000002156 mixing Methods 0.000 claims abstract description 6
235000013877 carbamide Nutrition 0.000 claims abstract description 5
239000004202 carbamide Substances 0.000 claims abstract description 5
239000000203 mixture Substances 0.000 claims abstract description 4
PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 3
229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 3
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 3
239000007864 aqueous solution Substances 0.000 claims abstract description 3
235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 3
239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 3
239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 3
238000004821 distillation Methods 0.000 claims abstract description 3
229910052731 fluorine Inorganic materials 0.000 claims abstract description 3
239000011737 fluorine Substances 0.000 claims abstract description 3
229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract 2
230000000996 additive effect Effects 0.000 claims description 2
150000003672 ureas Chemical group 0.000 claims 1
235000011149 sulphuric acid Nutrition 0.000 description 5
239000001117 sulphuric acid Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
238000000926 separation method Methods 0.000 description 4
229910052602 gypsum Inorganic materials 0.000 description 2
239000010440 gypsum Substances 0.000 description 2
239000000463 material Substances 0.000 description 2
238000012958 reprocessing Methods 0.000 description 2
229940032330 sulfuric acid Drugs 0.000 description 2
238000007669 thermal treatment Methods 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
OCPKQBHAWBTMTL-UHFFFAOYSA-N O=S=O.OS(O)(=O)=O Chemical compound O=S=O.OS(O)(=O)=O OCPKQBHAWBTMTL-UHFFFAOYSA-N 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
238000002679 ablation Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
239000000428 dust Substances 0.000 description 1
238000010410 dusting Methods 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
239000004571 lime Substances 0.000 description 1
230000036961 partial effect Effects 0.000 description 1
239000000243 solution Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1

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
- C01F11/46—Sulfates
- C01F11/468—Purification of calcium sulfates
- 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
- C01F11/46—Sulfates

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Glanulating (AREA)

CA280,739A 1977-06-16 1977-06-16 Procede d'obtention de phosphogypse defluore, en granules Expired CA1084236A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA280,739A CA1084236A (fr)	1977-06-16	1977-06-16	Procede d'obtention de phosphogypse defluore, en granules

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA280,739A CA1084236A (fr)	1977-06-16	1977-06-16	Procede d'obtention de phosphogypse defluore, en granules

Publications (1)

Publication Number	Publication Date
CA1084236A true CA1084236A (fr)	1980-08-26

Family

ID=4108905

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA280,739A Expired CA1084236A (fr)	1977-06-16	1977-06-16	Procede d'obtention de phosphogypse defluore, en granules

Country Status (1)

Country	Link
CA (1)	CA1084236A (fr)

1977
- 1977-06-16 CA CA280,739A patent/CA1084236A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1997-08-26	MKEX	Expiry