IT964718B - PROCEDURE FOR THE PRODUCTION OF PHOSPHOROUS ACIDS - Google Patents
PROCEDURE FOR THE PRODUCTION OF PHOSPHOROUS ACIDSInfo
- Publication number
- IT964718B IT964718B IT6933472A IT6933472A IT964718B IT 964718 B IT964718 B IT 964718B IT 6933472 A IT6933472 A IT 6933472A IT 6933472 A IT6933472 A IT 6933472A IT 964718 B IT964718 B IT 964718B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- production
- phosphorous acids
- phosphorous
- acids
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3388971A GB1401616A (en) | 1971-07-20 | 1971-07-20 | Manufacture of phosphorus acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT964718B true IT964718B (en) | 1974-01-31 |
Family
ID=10358766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT6933472A IT964718B (en) | 1971-07-20 | 1972-07-19 | PROCEDURE FOR THE PRODUCTION OF PHOSPHOROUS ACIDS |
Country Status (9)
| Country | Link |
|---|---|
| AU (1) | AU464489B2 (en) |
| BE (1) | BE786524A (en) |
| CA (1) | CA973681A (en) |
| CH (1) | CH573869A5 (en) |
| DE (1) | DE2235425A1 (en) |
| FR (1) | FR2146402B1 (en) |
| GB (1) | GB1401616A (en) |
| IT (1) | IT964718B (en) |
| NL (1) | NL7209962A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3725583A1 (en) * | 1987-08-01 | 1989-02-09 | Budenheim Rud A Oetker Chemie | Phosphorous acid solns. of low iron and arsenic content - prepd. by converting sec. calcium phosphite to prim. calcium phosphite solns., removing iron and arsenic by pptn. etc |
| GB9008406D0 (en) * | 1990-04-12 | 1990-06-13 | Albright & Wilson | Process for producing phosphorous acid |
| CN103864038B (en) * | 2012-12-15 | 2016-01-20 | 临沭县华盛化工有限公司 | Phosphorous acid removes the method for hydrochloric acid in producing |
-
1971
- 1971-07-20 GB GB3388971A patent/GB1401616A/en not_active Expired
-
1972
- 1972-07-19 FR FR7226087A patent/FR2146402B1/fr not_active Expired
- 1972-07-19 NL NL7209962A patent/NL7209962A/xx unknown
- 1972-07-19 DE DE19722235425 patent/DE2235425A1/en active Pending
- 1972-07-19 CH CH1082272A patent/CH573869A5/xx not_active IP Right Cessation
- 1972-07-19 IT IT6933472A patent/IT964718B/en active
- 1972-07-20 BE BE786524A patent/BE786524A/en unknown
- 1972-07-20 CA CA147,554A patent/CA973681A/en not_active Expired
- 1972-07-20 AU AU44743/72A patent/AU464489B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2146402A1 (en) | 1973-03-02 |
| NL7209962A (en) | 1973-01-23 |
| FR2146402B1 (en) | 1974-07-26 |
| GB1401616A (en) | 1975-07-16 |
| CA973681A (en) | 1975-09-02 |
| AU4474372A (en) | 1974-01-24 |
| BE786524A (en) | 1972-11-16 |
| CH573869A5 (en) | 1976-03-31 |
| AU464489B2 (en) | 1975-08-28 |
| DE2235425A1 (en) | 1973-02-15 |
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