FR2302275B1 - - Google Patents
Info
- Publication number
- FR2302275B1 FR2302275B1 FR7505791A FR7505791A FR2302275B1 FR 2302275 B1 FR2302275 B1 FR 2302275B1 FR 7505791 A FR7505791 A FR 7505791A FR 7505791 A FR7505791 A FR 7505791A FR 2302275 B1 FR2302275 B1 FR 2302275B1
- Authority
- FR
- France
- 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
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
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/19—Acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Silicon Compounds (AREA)
- Removal Of Specific Substances (AREA)
Priority Applications (17)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7505791A FR2302275A1 (fr) | 1975-02-25 | 1975-02-25 | Procede de concentration et d'epuration simultanees de l'acide phosphorique |
| GR49900A GR58530B (en) | 1975-02-25 | 1976-01-30 | Procede de concentration et d'epuration simultanees de l'acide phosphorique |
| US05/656,466 US4086069A (en) | 1975-02-25 | 1976-02-09 | Method for simultaneously concentrating and purifying phosphoric acid |
| BE1007191A BE838367A (fr) | 1975-02-25 | 1976-02-09 | Procede de concentration et d'epuration simultanees de l'acide phosphorique |
| SE7601542A SE415471B (sv) | 1975-02-25 | 1976-02-11 | Forfarande for samtidig koncentrering och rening av en vattenlosning av fosforsyra |
| LU74327A LU74327A1 (US06174465-20010116-C00003.png) | 1975-02-25 | 1976-02-11 | |
| YU00344/76A YU34476A (en) | 1975-02-25 | 1976-02-13 | Process for the simultaneous concentration and purification of the aqueous solution of phosphoric acid from fluorine |
| RO7684822A RO68896A (ro) | 1975-02-25 | 1976-02-14 | Procedeu de concentrare si epurare simultana a acidului fosforic |
| DE19762606490 DE2606490A1 (de) | 1975-02-25 | 1976-02-18 | Verfahren zur gleichzeitigen konzentrierung und reinigung von phosphorsaeure |
| GB6674/76A GB1529264A (en) | 1975-02-25 | 1976-02-19 | Method of concentrating and purifying phosphoric acid simultaneously |
| IT20397/76A IT1058341B (it) | 1975-02-25 | 1976-02-20 | Procedimento di concentrazione e di depurazione simultanee dell acido fosforico e impianto per la messa in opera di tale procedimento |
| DD191425A DD123592A5 (US06174465-20010116-C00003.png) | 1975-02-25 | 1976-02-23 | |
| DK76276AA DK137230B (da) | 1975-02-25 | 1976-02-24 | Fremgangsmåde til samtidig koncentrering af en rå, vandig phosphorsyreopløsning og rensning af denne for fluorholdige derivater. |
| PL1976187447A PL98067B1 (pl) | 1975-02-25 | 1976-02-24 | Sposob jednoczesnego zatezania i oczyszczania kwasu fosforowego |
| ES445520A ES445520A1 (es) | 1975-02-25 | 1976-02-25 | Procedimiento de concentracion y de depuracion simultanea deuna solucion acuosa de acido fosforico en derivados fluora- dos. |
| NL7601953A NL7601953A (nl) | 1975-02-25 | 1976-02-25 | Werkwijze voor de gelijktijdige concentratie en zuivering van fosforzuur. |
| CS761232A CS209425B2 (en) | 1975-02-25 | 1976-02-25 | Method of contemporary concentration and cleaning of waterous solution of the phosphoric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7505791A FR2302275A1 (fr) | 1975-02-25 | 1975-02-25 | Procede de concentration et d'epuration simultanees de l'acide phosphorique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2302275A1 FR2302275A1 (fr) | 1976-09-24 |
| FR2302275B1 true FR2302275B1 (US06174465-20010116-C00003.png) | 1978-02-03 |
Family
ID=9151686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7505791A Granted FR2302275A1 (fr) | 1975-02-25 | 1975-02-25 | Procede de concentration et d'epuration simultanees de l'acide phosphorique |
Country Status (17)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915569A (zh) * | 2021-03-30 | 2021-06-08 | 云南磷化集团有限公司 | 一种用于湿法磷酸渣酸脱氟的泡罩塔及其脱氟方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3276510A (en) * | 1966-10-04 | Concentration op phosphoric acid | ||
| CA600810A (en) * | 1960-06-28 | E. Tynan Donald | Defluorination of phosphoric acid | |
| US3397123A (en) * | 1965-06-03 | 1968-08-13 | Hooker Chemical Corp | Purifying aqueous acid phosphate solutions containing fluorine impurities |
| US3544269A (en) * | 1967-02-27 | 1970-12-01 | Whiting Corp | Method for producing defluorinated phosphoric acid |
| US3718729A (en) * | 1971-03-15 | 1973-02-27 | American Cyanamid Co | Defluorination of wet process phosphoric acid |
| US3764658A (en) * | 1972-01-26 | 1973-10-09 | United States Steel Corp | Production of fluosilicic acid |
-
1975
- 1975-02-25 FR FR7505791A patent/FR2302275A1/fr active Granted
-
1976
- 1976-01-30 GR GR49900A patent/GR58530B/el unknown
- 1976-02-09 BE BE1007191A patent/BE838367A/xx not_active IP Right Cessation
- 1976-02-09 US US05/656,466 patent/US4086069A/en not_active Expired - Lifetime
- 1976-02-11 LU LU74327A patent/LU74327A1/xx unknown
- 1976-02-11 SE SE7601542A patent/SE415471B/xx unknown
- 1976-02-13 YU YU00344/76A patent/YU34476A/xx unknown
- 1976-02-14 RO RO7684822A patent/RO68896A/ro unknown
- 1976-02-18 DE DE19762606490 patent/DE2606490A1/de not_active Withdrawn
- 1976-02-19 GB GB6674/76A patent/GB1529264A/en not_active Expired
- 1976-02-20 IT IT20397/76A patent/IT1058341B/it active
- 1976-02-23 DD DD191425A patent/DD123592A5/xx unknown
- 1976-02-24 PL PL1976187447A patent/PL98067B1/pl unknown
- 1976-02-24 DK DK76276AA patent/DK137230B/da not_active IP Right Cessation
- 1976-02-25 ES ES445520A patent/ES445520A1/es not_active Expired
- 1976-02-25 CS CS761232A patent/CS209425B2/cs unknown
- 1976-02-25 NL NL7601953A patent/NL7601953A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US4086069A (en) | 1978-04-25 |
| DD123592A5 (US06174465-20010116-C00003.png) | 1977-01-05 |
| YU34476A (en) | 1982-05-31 |
| GR58530B (en) | 1977-10-31 |
| FR2302275A1 (fr) | 1976-09-24 |
| SE415471B (sv) | 1980-10-06 |
| BE838367A (fr) | 1976-08-09 |
| DK137230B (da) | 1978-02-06 |
| NL7601953A (nl) | 1976-08-27 |
| GB1529264A (en) | 1978-10-18 |
| LU74327A1 (US06174465-20010116-C00003.png) | 1976-12-31 |
| DE2606490A1 (de) | 1976-09-02 |
| DK76276A (US06174465-20010116-C00003.png) | 1976-08-26 |
| SE7601542L (sv) | 1976-08-26 |
| CS209425B2 (en) | 1981-12-31 |
| IT1058341B (it) | 1982-04-10 |
| DK137230C (US06174465-20010116-C00003.png) | 1978-07-03 |
| PL98067B1 (pl) | 1978-04-29 |
| RO68896A (ro) | 1980-12-30 |
| ES445520A1 (es) | 1977-06-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |