IT1039720B - Procedimento per la preparazione di acido fosforico uro - Google Patents
Procedimento per la preparazione di acido fosforico uroInfo
- Publication number
- IT1039720B IT1039720B IT2514075A IT2514075A IT1039720B IT 1039720 B IT1039720 B IT 1039720B IT 2514075 A IT2514075 A IT 2514075A IT 2514075 A IT2514075 A IT 2514075A IT 1039720 B IT1039720 B IT 1039720B
- Authority
- IT
- Italy
- Prior art keywords
- uro
- procedure
- preparation
- phosphoric acid
- phosphoric
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7777374A JPS516894A (en) | 1974-07-09 | 1974-07-09 | Seiseirinsanno seizoho |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1039720B true IT1039720B (it) | 1979-12-10 |
Family
ID=13643261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2514075A IT1039720B (it) | 1974-07-09 | 1975-07-07 | Procedimento per la preparazione di acido fosforico uro |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS516894A (it) |
AU (1) | AU475462B2 (it) |
BR (1) | BR7504306A (it) |
DE (1) | DE2530658C3 (it) |
FR (1) | FR2277767A1 (it) |
GB (1) | GB1463224A (it) |
IT (1) | IT1039720B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5297393A (en) * | 1976-02-13 | 1977-08-16 | Toyo Soda Mfg Co Ltd | Purification of extracted phosphoric acid |
JPS5297394A (en) * | 1976-02-13 | 1977-08-16 | Toyo Soda Mfg Co Ltd | Removal of organic matter in phosphoric acid |
FR2391954A2 (fr) * | 1977-05-23 | 1978-12-22 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique de voie humide |
FR2421845A2 (fr) * | 1978-01-12 | 1979-11-02 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique de voie humide |
CN112661127A (zh) * | 2021-03-08 | 2021-04-16 | 昆明理工大学 | 提高湿法磷酸氟收率的系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD30306A (it) * | ||||
US2165100A (en) * | 1936-08-28 | 1939-07-04 | Virginia Chemical Corp | Process for purifying phosphoric acid |
US2415797A (en) * | 1942-10-02 | 1947-02-11 | Westvaco Chlorine Products Cor | Preparation of pure phosphoric acid |
US2977196A (en) * | 1955-07-01 | 1961-03-28 | Int Minerals & Chem Corp | Defluorination method |
US2987376A (en) * | 1956-12-27 | 1961-06-06 | Int Minerals & Chem Corp | Method for defluorination of phosphoric acid |
DE1148531B (de) * | 1960-05-25 | 1963-05-16 | Int Minerals & Chem Corp | Verfahren zum Entfluorieren fluorhaltiger, saurer phosphathaltiger Loesungen |
US3193351A (en) * | 1961-07-05 | 1965-07-06 | Nat Distillers Chem Corp | Removal of fluorine from wet process prosphoric acid |
DE1667435B1 (de) * | 1967-12-19 | 1971-09-16 | Kalk Chemische Fabrik Gmbh | Verfahren zur herstellung fluorarmer phosphorsaeure |
US3718729A (en) * | 1971-03-15 | 1973-02-27 | American Cyanamid Co | Defluorination of wet process phosphoric acid |
BE788733A (fr) * | 1971-09-13 | 1973-03-13 | Int Standard Electric Corp | Perfectionnements aux composes de remplissage pour cables |
JPS5018388A (it) * | 1973-06-21 | 1975-02-26 |
-
1974
- 1974-07-09 JP JP7777374A patent/JPS516894A/ja active Granted
-
1975
- 1975-07-01 FR FR7520586A patent/FR2277767A1/fr active Granted
- 1975-07-02 AU AU82688/75A patent/AU475462B2/en not_active Expired
- 1975-07-07 GB GB2851875A patent/GB1463224A/en not_active Expired
- 1975-07-07 IT IT2514075A patent/IT1039720B/it active
- 1975-07-08 BR BR7505519D patent/BR7504306A/pt unknown
- 1975-07-09 DE DE19752530658 patent/DE2530658C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2277767B1 (it) | 1980-08-08 |
DE2530658C3 (de) | 1983-11-17 |
FR2277767A1 (fr) | 1976-02-06 |
JPS5652848B2 (it) | 1981-12-15 |
DE2530658A1 (de) | 1976-01-29 |
DE2530658B2 (de) | 1977-06-23 |
BR7504306A (pt) | 1976-07-06 |
AU475462B2 (en) | 1976-08-26 |
AU8268875A (en) | 1976-08-26 |
JPS516894A (en) | 1976-01-20 |
GB1463224A (en) | 1977-02-02 |
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