BE807789A - Procede perfectionne de production d'hydrosulfite de sodium en utilisant du formiate de sodium de l'acide formique ou un ester de ce dernier - Google Patents
Procede perfectionne de production d'hydrosulfite de sodium en utilisant du formiate de sodium de l'acide formique ou un ester de ce dernierInfo
- Publication number
- BE807789A BE807789A BE138154A BE138154A BE807789A BE 807789 A BE807789 A BE 807789A BE 138154 A BE138154 A BE 138154A BE 138154 A BE138154 A BE 138154A BE 807789 A BE807789 A BE 807789A
- Authority
- BE
- Belgium
- Prior art keywords
- sodium
- ester
- production
- formic acid
- perfected process
- 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
- C01B17/00—Sulfur; Compounds thereof
- C01B17/64—Thiosulfates; Dithionites; Polythionates
- C01B17/66—Dithionites or hydrosulfites (S2O42-)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47118528A JPS516113B2 (xx) | 1972-11-28 | 1972-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE807789A true BE807789A (fr) | 1974-03-15 |
Family
ID=14738819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE138154A BE807789A (fr) | 1972-11-28 | 1973-11-26 | Procede perfectionne de production d'hydrosulfite de sodium en utilisant du formiate de sodium de l'acide formique ou un ester de ce dernier |
Country Status (9)
Country | Link |
---|---|
US (1) | US3872221A (xx) |
JP (1) | JPS516113B2 (xx) |
BE (1) | BE807789A (xx) |
CA (1) | CA995873A (xx) |
DE (1) | DE2358749B2 (xx) |
FR (1) | FR2207860B1 (xx) |
GB (1) | GB1454789A (xx) |
IT (1) | IT1002513B (xx) |
NL (1) | NL7316159A (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57209809A (en) * | 1981-06-18 | 1982-12-23 | Mitsubishi Gas Chem Co Inc | Preparation of dithionite |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3411875A (en) * | 1964-04-08 | 1968-11-19 | Mitsubishi Edogawa Kagaku Kk | Process for the production of anhydrous hydrosulfites |
DE1592013B2 (de) * | 1966-05-16 | 1972-08-24 | Mitsubishi Edogawa Kagaku K K , Tokio | Verfahren zur herstellung eines wasserfreien natrium-hyposulfits |
JPS4814558B1 (xx) * | 1969-11-07 | 1973-05-08 | ||
US3576598A (en) * | 1970-02-05 | 1971-04-27 | Virginia Chemicals Inc | Production of sodium hydrosulfite from formates |
CA947040A (en) * | 1970-11-16 | 1974-05-14 | Jack Plentovich | Production of sodium hydrosulfite from formates |
-
1972
- 1972-11-28 JP JP47118528A patent/JPS516113B2/ja not_active Expired
-
1973
- 1973-11-23 US US418452A patent/US3872221A/en not_active Expired - Lifetime
- 1973-11-26 DE DE2358749A patent/DE2358749B2/de not_active Withdrawn
- 1973-11-26 BE BE138154A patent/BE807789A/xx not_active IP Right Cessation
- 1973-11-26 NL NL7316159A patent/NL7316159A/xx not_active Application Discontinuation
- 1973-11-27 IT IT53929/73A patent/IT1002513B/it active
- 1973-11-27 FR FR7342126A patent/FR2207860B1/fr not_active Expired
- 1973-11-28 GB GB5525273A patent/GB1454789A/en not_active Expired
- 1973-11-28 CA CA186,934A patent/CA995873A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4976797A (xx) | 1974-07-24 |
FR2207860B1 (xx) | 1977-06-10 |
JPS516113B2 (xx) | 1976-02-25 |
DE2358749A1 (de) | 1974-05-30 |
IT1002513B (it) | 1976-05-20 |
DE2358749B2 (de) | 1980-07-31 |
CA995873A (en) | 1976-08-31 |
NL7316159A (xx) | 1974-05-30 |
US3872221A (en) | 1975-03-18 |
FR2207860A1 (xx) | 1974-06-21 |
GB1454789A (en) | 1976-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE818203A (fr) | Procede de production d'un acide carboxylique aromatique | |
BE855192A (fr) | Procede de production d'acides phosphinico-carboxyliques aliphatiques substitues | |
BE774329A (fr) | Procede de fabrication d'acides carboxyliques insatures | |
BE760837A (fr) | Procede de preparation d'acide 6-aminopenicillanique | |
BE777297A (fr) | Procede de production des esters alkyliques inferieurs de l'acide cis-chrysantheme-monocarboxylique | |
BE749493A (fr) | Procede de preparation d'acides carboxyliques | |
RO62875A (fr) | Procede pour obtenir des esters d'acide pyridazinothionophosphonique | |
BE819023A (fr) | Procede de production d'acide propionique | |
FR2296630A1 (fr) | Procede de preparation d'anhydrides d'acides carboxyliques | |
BE807789A (fr) | Procede perfectionne de production d'hydrosulfite de sodium en utilisant du formiate de sodium de l'acide formique ou un ester de ce dernier | |
BE764364A (fr) | Procede de preparation d'acide levulinique | |
BE801044A (fr) | Procede de production d'acide 7-amino desacetoxycephalosporanique | |
BE799609A (fr) | Procede de production d'esters d'acides carboxyliques, | |
RO62007A (fr) | Procede pour la fabrication d'acide azotique concentre | |
CH515205A (fr) | Procédé de séparation d'acide acétique, eau et acide formique | |
FR1497423A (fr) | Procédé de production de dérivés hétérocycliques d'acide acétique | |
BE793289A (fr) | Procede de production d'acides anthraquinone-sulfonique | |
BE798554A (fr) | Procede de fabrication d'esters d'acides aryloxyacet acetiques | |
BE797440A (fr) | Procede de melange d'acides | |
BE758550A (fr) | Procede de preparation d'acides carboxyliques | |
BE770485A (fr) | Procede de preparation d'acides carboxyliques | |
BE806868A (fr) | Procede de preparation de l'acide 7-(d-alpha-aminophenylacetamido) -3-desacetoxycephalosporanique | |
BE771579A (fr) | Procede de production d'acides anthraquinone-alpha-sulfoniques | |
RO63748A (fr) | Procede de preparation des derives de l'acide 6-aminopenicillanique | |
BE804531A (fr) | Procede de production d'acide fluorhydrique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: MITSUBISHI GAS CHEMICAL CO. LTD Effective date: 19931126 |