FR2121817B1 - - Google Patents
Info
- Publication number
- FR2121817B1 FR2121817B1 FR7201092A FR7201092A FR2121817B1 FR 2121817 B1 FR2121817 B1 FR 2121817B1 FR 7201092 A FR7201092 A FR 7201092A FR 7201092 A FR7201092 A FR 7201092A FR 2121817 B1 FR2121817 B1 FR 2121817B1
- 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
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/02—Preparation of sulfates from alkali metal salts and sulfuric acid or bisulfates; Preparation of bisulfates
-
- 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
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
-
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
-
- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Water Treatments (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10617971A | 1971-01-13 | 1971-01-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2121817A1 FR2121817A1 (fr) | 1972-08-25 |
FR2121817B1 true FR2121817B1 (fr) | 1975-06-13 |
Family
ID=22309946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7201092A Expired FR2121817B1 (fr) | 1971-01-13 | 1972-01-13 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3718732A (fr) |
BE (1) | BE777973A (fr) |
BR (1) | BR7200195D0 (fr) |
CA (1) | CA936979A (fr) |
DE (1) | DE2201246B2 (fr) |
FR (1) | FR2121817B1 (fr) |
GB (1) | GB1360174A (fr) |
IT (1) | IT949639B (fr) |
NL (1) | NL151680B (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238505B2 (fr) * | 1973-02-02 | 1977-09-29 | ||
JPS5341464B2 (fr) * | 1973-08-15 | 1978-11-02 | ||
US3961034A (en) * | 1974-09-25 | 1976-06-01 | Virginia Chemicals Inc. | Method of removing sodium thiosulfate from a hydrosulfite reaction mixture |
JPS51136596A (en) * | 1975-05-21 | 1976-11-26 | Mitsui Toatsu Chem Inc | Method for processing mot her liquid in the production of sodium dithionite |
JPS51136597A (en) * | 1975-05-21 | 1976-11-26 | Mitsui Toatsu Chem Inc | Method for processing mother solution of sodium dithionite anhydride production |
US4131642A (en) * | 1976-09-17 | 1978-12-26 | Ciba-Geigy Corporation | Treatment of the waste from the production of tertiary butyl amine to recover sodium sulfate and methyl or sodium formate |
JPS57209809A (en) * | 1981-06-18 | 1982-12-23 | Mitsubishi Gas Chem Co Inc | Preparation of dithionite |
DE3406322A1 (de) * | 1984-02-22 | 1985-08-22 | Basf Ag, 6700 Ludwigshafen | Stabilisierte, wasser enthaltende, alkalisch eingestellte natriumdithionitzubereitungen |
CA2016353A1 (fr) * | 1989-05-23 | 1990-11-23 | Charles E. Winslow, Jr. | Methode de reutilisation d'un produit secondaire aqueux provenant de la preparation de dithionite de sodium |
US7759273B2 (en) | 2005-04-20 | 2010-07-20 | Cabot Corporation | Methods of forming an alkali metal salt |
CN103754896B (zh) * | 2013-12-21 | 2016-06-15 | 中盐安徽红四方股份有限公司 | 一种在保险粉废水中提取芒硝的方法 |
CN106706841B (zh) * | 2016-12-13 | 2019-02-05 | 柳州化工股份有限公司 | 保险粉生产中回收甲酸钠纯度的分析方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE295859C (fr) * | ||||
BE367731A (fr) * | ||||
US1609773A (en) * | 1924-12-23 | 1926-12-07 | Squibb & Sons Inc | Production of anhydrous hydrosulphites |
US2359319A (en) * | 1941-10-02 | 1944-10-03 | Cons Mining & Smelting Co | Process for the production of ammonium sulphate and elemental sulphur |
DE1592013B2 (de) * | 1966-05-16 | 1972-08-24 | Mitsubishi Edogawa Kagaku K K , Tokio | Verfahren zur herstellung eines wasserfreien natrium-hyposulfits |
FR1536247A (fr) * | 1966-05-16 | 1968-08-16 | Mitsubishi Edogawa Kagaku Kk | Procédé de production d'un hydrosulfite anhydre de métal alcalin |
-
1971
- 1971-01-13 US US00106179A patent/US3718732A/en not_active Expired - Lifetime
-
1972
- 1972-01-11 CA CA132175A patent/CA936979A/en not_active Expired
- 1972-01-12 DE DE2201246A patent/DE2201246B2/de not_active Ceased
- 1972-01-12 GB GB145672A patent/GB1360174A/en not_active Expired
- 1972-01-13 BE BE777973A patent/BE777973A/fr unknown
- 1972-01-13 NL NL727200490A patent/NL151680B/xx not_active IP Right Cessation
- 1972-01-13 IT IT47703/72A patent/IT949639B/it active
- 1972-01-13 FR FR7201092A patent/FR2121817B1/fr not_active Expired
- 1972-01-13 BR BR195/72A patent/BR7200195D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
BE777973A (fr) | 1972-05-02 |
NL151680B (nl) | 1976-12-15 |
DE2201246B2 (de) | 1979-08-30 |
US3718732A (en) | 1973-02-27 |
GB1360174A (en) | 1974-07-17 |
CA936979A (en) | 1973-11-13 |
BR7200195D0 (pt) | 1973-06-14 |
NL7200490A (fr) | 1972-07-17 |
FR2121817A1 (fr) | 1972-08-25 |
DE2201246A1 (de) | 1972-08-03 |
IT949639B (it) | 1973-06-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |