TNSN87020A1 - Procede de preparation d'acide phosphorique brut - Google Patents
Procede de preparation d'acide phosphorique brutInfo
- Publication number
- TNSN87020A1 TNSN87020A1 TNTNSN87020A TNSN87020A TNSN87020A1 TN SN87020 A1 TNSN87020 A1 TN SN87020A1 TN TNSN87020 A TNTNSN87020 A TN TNSN87020A TN SN87020 A TNSN87020 A TN SN87020A TN SN87020 A1 TNSN87020 A1 TN SN87020A1
- Authority
- TN
- Tunisia
- Prior art keywords
- attack
- preparation
- phosphoric acid
- washing
- precipites
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 239000010452 phosphate Substances 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
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
- C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
-
- 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
- C01B25/223—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 only one form of calcium sulfate being formed
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Saccharide Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fuel Cell (AREA)
- Fertilizers (AREA)
Abstract
L INVENTION A NOTAMMENT POUR OBJET UN PROCEDE DE PREPARATION D'ACIDE PHOSPHORIQUE BRUT PAR ATTAQUE DE MINERAI DE PHOSPHATE BRUT CONTENANT DU SULFURE PAR UN ACIDE MINERAL DANS UN SYSTEME FERME COMPORTANT UN REACTEUR D'ATTAQUE, UNE ZONE DE FILTRATION ET UNE ZONE DE LAVAGE DES GAZ RESIDUAIRES. SELON L'INVENTION, ON AJOUTE SOIT A) PENDANT L'ATTAQUE DU MINERAI DE PHOSPHATE, SOIT B) DANS LE LAVAGE DU GAZ RESIDUAIRE DES COMPOSES SOLUBLES DE METAUX FORMANT DES SULFURES DIFFICILEMENT SOLUBLES DANS LE MILIEU ACIDE RESPECTIF. DANS LE CAS A), ON ELIMINE ENSUITE PAR FILTRATION LES PRECIPITES DE SULFURES AINSI FORMES EN MEME TEMPS QUE LES AUTRES PRECIPITES FORMES LORS DE L'ATTAQUE ET, DANS LE CAS B), ON LES SEPARE DU LIQUIDE DE LAVAGE
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863604920 DE3604920A1 (de) | 1986-02-17 | 1986-02-17 | Verfahren zur herstellung von rohphosphorsaeure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TNSN87020A1 true TNSN87020A1 (fr) | 1990-01-01 |
Family
ID=6294237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TNTNSN87020A TNSN87020A1 (fr) | 1986-02-17 | 1987-02-11 | Procede de preparation d'acide phosphorique brut |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4780294A (fr) |
| EP (1) | EP0233523B1 (fr) |
| JP (1) | JPS62191408A (fr) |
| DE (2) | DE3604920A1 (fr) |
| ES (1) | ES2026853T3 (fr) |
| IL (1) | IL81585A (fr) |
| IN (1) | IN169199B (fr) |
| MA (1) | MA20867A1 (fr) |
| NO (1) | NO170923B (fr) |
| TN (1) | TNSN87020A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4362976B2 (ja) * | 1998-12-28 | 2009-11-11 | 東洋紡績株式会社 | リン酸の精製方法および高純度ポリリン酸 |
| EP4430000A1 (fr) * | 2021-11-12 | 2024-09-18 | Takhim for Technology and Business Services | Procédé de production d'une solution d'acide phosphorique purifiée et/ou de sels de phosphate dicalcique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2003051A (en) * | 1933-07-05 | 1935-05-28 | Victor Chemical Works | Purification of strong phosphoric acid |
| US3511604A (en) * | 1967-04-07 | 1970-05-12 | Continental Oil Co | Corrosion inhibition during phosphate rock acidulation |
| SE418845B (sv) * | 1979-05-10 | 1981-06-29 | Boliden Ab | Forfarande for rening av vatprocessfosforsyra |
| JPS59184291A (ja) * | 1983-04-04 | 1984-10-19 | Mitsubishi Heavy Ind Ltd | 高温還元性ガスの精製方法 |
-
1986
- 1986-02-17 DE DE19863604920 patent/DE3604920A1/de not_active Withdrawn
-
1987
- 1987-01-21 IN IN40/MAS/87A patent/IN169199B/en unknown
- 1987-01-29 ES ES198787101255T patent/ES2026853T3/es not_active Expired - Lifetime
- 1987-01-29 EP EP87101255A patent/EP0233523B1/fr not_active Expired - Lifetime
- 1987-01-29 DE DE8787101255T patent/DE3773404D1/de not_active Expired - Fee Related
- 1987-01-30 MA MA21101A patent/MA20867A1/fr unknown
- 1987-02-03 US US07/010,333 patent/US4780294A/en not_active Expired - Fee Related
- 1987-02-11 TN TNTNSN87020A patent/TNSN87020A1/fr unknown
- 1987-02-16 IL IL81585A patent/IL81585A/xx unknown
- 1987-02-16 NO NO870600A patent/NO170923B/no unknown
- 1987-02-17 JP JP62032571A patent/JPS62191408A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NO870600D0 (no) | 1987-02-16 |
| EP0233523B1 (fr) | 1991-10-02 |
| NO870600L (no) | 1987-08-18 |
| IN169199B (fr) | 1991-09-14 |
| NO170923B (no) | 1992-09-21 |
| US4780294A (en) | 1988-10-25 |
| IL81585A (en) | 1990-06-10 |
| EP0233523A2 (fr) | 1987-08-26 |
| MA20867A1 (fr) | 1987-10-01 |
| IL81585A0 (en) | 1987-09-16 |
| DE3604920A1 (de) | 1987-08-20 |
| JPS62191408A (ja) | 1987-08-21 |
| ES2026853T3 (es) | 1992-05-16 |
| EP0233523A3 (en) | 1989-02-08 |
| DE3773404D1 (de) | 1991-11-07 |
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