DE1567505A1 - Verfahren zum Reinigen des bei der Herstellung von Phosphorsaeure durch schwefeliges Angreifen natuerlicher Phosphate anfallenden Gipsrestes - Google Patents
Verfahren zum Reinigen des bei der Herstellung von Phosphorsaeure durch schwefeliges Angreifen natuerlicher Phosphate anfallenden GipsrestesInfo
- Publication number
- DE1567505A1 DE1567505A1 DE19651567505 DE1567505A DE1567505A1 DE 1567505 A1 DE1567505 A1 DE 1567505A1 DE 19651567505 DE19651567505 DE 19651567505 DE 1567505 A DE1567505 A DE 1567505A DE 1567505 A1 DE1567505 A1 DE 1567505A1
- Authority
- DE
- Germany
- Prior art keywords
- crystals
- reaction vessel
- phosphoric acid
- production
- gypsum
- 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.)
- Pending
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 21
- 229910052602 gypsum Inorganic materials 0.000 title claims description 19
- 239000010440 gypsum Substances 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 14
- 229910019142 PO4 Inorganic materials 0.000 title claims description 6
- 235000021317 phosphate Nutrition 0.000 title claims description 6
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title claims description 6
- 238000004140 cleaning Methods 0.000 title claims description 5
- 239000013078 crystal Substances 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 34
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 18
- 238000011282 treatment Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 239000010802 sludge Substances 0.000 claims description 9
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 8
- 239000011507 gypsum plaster Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 235000011132 calcium sulphate Nutrition 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000001175 calcium sulphate Substances 0.000 claims description 2
- 239000011505 plaster Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 24
- 229910052925 anhydrite Inorganic materials 0.000 description 15
- 239000000047 product Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 150000004683 dihydrates Chemical class 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 235000005985 organic acids Nutrition 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000350158 Prioria balsamifera Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- -1 alkalis Substances 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GEHJBWKLJVFKPS-UHFFFAOYSA-N bromochloroacetic acid Chemical compound OC(=O)C(Cl)Br GEHJBWKLJVFKPS-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002288 cocrystallisation Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002351 wastewater 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
- C01F11/466—Conversion of one form of calcium sulfate to another
-
- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR965314A FR1409248A (fr) | 1963-07-04 | 1964-02-27 | Procédé de purification du gypse résiduaire provenant de la fabrication d'acide phosphorique par l'attaque sulfurique de phosphates naturels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1567505A1 true DE1567505A1 (de) | 1970-04-16 |
Family
ID=8824157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651567505 Pending DE1567505A1 (de) | 1964-02-27 | 1965-02-22 | Verfahren zum Reinigen des bei der Herstellung von Phosphorsaeure durch schwefeliges Angreifen natuerlicher Phosphate anfallenden Gipsrestes |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3580703A (en, 2012) |
| AT (1) | AT264461B (en, 2012) |
| BE (1) | BE660216A (en, 2012) |
| DE (1) | DE1567505A1 (en, 2012) |
| DK (1) | DK111201B (en, 2012) |
| ES (1) | ES310273A1 (en, 2012) |
| GB (1) | GB1103206A (en, 2012) |
| IL (1) | IL23004A (en, 2012) |
| NL (1) | NL144896B (en, 2012) |
| OA (1) | OA01528A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0237802A1 (de) * | 1986-02-20 | 1987-09-23 | Gebr. Knauf Westdeutsche Gipswerke KG | Verfahren zur Herstellung von Calciumsulfat-Anhydrit und abbindefähigen Calciumsulfaten |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113835A (en) * | 1972-07-06 | 1978-09-12 | Veba-Chemie Aktiengesellschaft | Process for preparing pure synthetic calcium sulfate semihydrate |
| NL7812109A (nl) * | 1978-12-13 | 1980-06-17 | Stamicarbon | Werkwijze voor het bereiden van calciumsulfaat- anhydriet en calciumsulfaatanhydriet verkregen volgens deze werkwijze. |
| US4388292A (en) * | 1981-12-14 | 1983-06-14 | United States Gypsum Company | Process for reducing radioactive contamination in phosphogypsum |
| US4421731A (en) * | 1982-09-29 | 1983-12-20 | United States Gypsum Company | Process for purifying phosphogypsum |
| NL8402502A (nl) * | 1983-09-03 | 1985-04-01 | Bischoff Gasreinigung | Werkwijze voor het omzetten van het residu afkomstig van rookgasontzwavelingsinstallaties in alfahalfhydraat-gipskristallen. |
| BE1016065A3 (fr) | 2004-06-01 | 2006-02-07 | Prayon Technologies | Procede de production d'acide phosphorique. |
| EP2771280B1 (fr) * | 2011-10-24 | 2018-02-21 | Hydrometal SA | Procede de traitement de roches phosphatees |
| BE1023754B1 (fr) * | 2016-06-23 | 2017-07-12 | Prayon Technologies | Procede de production de sulfate de calcium |
| CN110937833B (zh) * | 2019-12-03 | 2021-10-08 | 贵州鼎瑞环保科技有限公司 | 一种磷石膏免烧改性处理方法 |
-
1965
- 1965-02-17 IL IL23004A patent/IL23004A/xx unknown
- 1965-02-22 DE DE19651567505 patent/DE1567505A1/de active Pending
- 1965-02-22 OA OA51471A patent/OA01528A/xx unknown
- 1965-02-24 GB GB7888/65A patent/GB1103206A/en not_active Expired
- 1965-02-25 BE BE660216D patent/BE660216A/xx unknown
- 1965-02-26 NL NL656502504A patent/NL144896B/xx unknown
- 1965-02-26 ES ES0310273A patent/ES310273A1/es not_active Expired
- 1965-02-27 DK DK103765AA patent/DK111201B/da unknown
- 1965-03-01 AT AT177765A patent/AT264461B/de active
-
1969
- 1969-02-27 US US802890*A patent/US3580703A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0237802A1 (de) * | 1986-02-20 | 1987-09-23 | Gebr. Knauf Westdeutsche Gipswerke KG | Verfahren zur Herstellung von Calciumsulfat-Anhydrit und abbindefähigen Calciumsulfaten |
Also Published As
| Publication number | Publication date |
|---|---|
| US3580703A (en) | 1971-05-25 |
| GB1103206A (en) | 1968-02-14 |
| DK111201B (da) | 1968-07-01 |
| NL6502504A (en, 2012) | 1965-08-30 |
| AT264461B (de) | 1968-09-10 |
| NL144896B (nl) | 1975-02-17 |
| ES310273A1 (es) | 1965-07-01 |
| IL23004A (en) | 1969-03-27 |
| OA01528A (fr) | 1969-07-21 |
| BE660216A (en, 2012) | 1965-06-16 |
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