JPH0345005B2 - - Google Patents
Info
- Publication number
- JPH0345005B2 JPH0345005B2 JP56176556A JP17655681A JPH0345005B2 JP H0345005 B2 JPH0345005 B2 JP H0345005B2 JP 56176556 A JP56176556 A JP 56176556A JP 17655681 A JP17655681 A JP 17655681A JP H0345005 B2 JPH0345005 B2 JP H0345005B2
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- acid
- nitric acid
- carbon
- reactor
- Prior art date
- 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 - Lifetime
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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids
-
- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
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 |
|---|---|---|---|
| FR8024108A FR2493823A1 (fr) | 1980-11-13 | 1980-11-13 | Purification des acides sulfuriques residuaires provenant de la synthese des alcools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57106506A JPS57106506A (en) | 1982-07-02 |
| JPH0345005B2 true JPH0345005B2 (OSRAM) | 1991-07-09 |
Family
ID=9247922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56176556A Granted JPS57106506A (en) | 1980-11-13 | 1981-11-05 | Purification of residual sulfuric acid obtained from alcohol manufacture |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0052548B1 (OSRAM) |
| JP (1) | JPS57106506A (OSRAM) |
| KR (1) | KR850001400B1 (OSRAM) |
| CA (1) | CA1156022A (OSRAM) |
| DE (1) | DE3172363D1 (OSRAM) |
| DK (1) | DK156994C (OSRAM) |
| ES (1) | ES8302604A1 (OSRAM) |
| FR (1) | FR2493823A1 (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020002443B4 (de) | 2020-04-23 | 2022-09-01 | Pfaudler Normag Systems GmbH | Verfahren zur Reduzierung des Salpetersäureverbrauchs bei der Reinigung von mit organischen Verbindungen verunreinigter Abfallschwefelsäure durch oxidative Behandlung |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB387569A (en) * | 1932-02-25 | 1933-02-09 | Hermann Frischer | Process for regenerating waste sulphuric acid |
| FR765639A (fr) * | 1932-12-10 | 1934-06-13 | Kestner App Evaporateurs | Procédé et appareillage pour débarrasser par l'acide nitrique les acides sulfuriques résiduaires des matières organiques dont ils sont chargés |
| FR816186A (fr) * | 1936-01-14 | 1937-08-02 | Cellulose Patents Internationa | Procédé pour la régénération d'acide sulfurique résiduaire par chauffage ou concentration et adjonction d'agents d'oxydation tels que l'acide nitrique |
| US2390316A (en) * | 1942-10-07 | 1945-12-04 | Standard Oil Dev Co | Acid recovery process |
| GB672723A (en) * | 1949-07-19 | 1952-05-28 | Anglo Iranian Oil Co Ltd | Improvements in or relating to the removal of carbonaceous materials from sulphuric acid |
| US2955920A (en) * | 1955-10-14 | 1960-10-11 | Nat Distillers Chem Corp | Decarbonization of spent acids |
| FR1223678A (fr) * | 1959-02-18 | 1960-06-20 | Procédé pour la purification et la concentration de l'acide sulfurique provenant de produits résiduaires | |
| FR2267980A1 (en) * | 1974-04-16 | 1975-11-14 | Ici Ltd | Purifying sulphuric acid contg. org. sulphonic acids - as contaminants by concn., reaction with nitric acid and distn. |
| DE2632989A1 (de) * | 1976-07-22 | 1978-02-02 | Hoechst Ag | Verfahren zum regenerieren von schwefelsaeure |
| JPS5314075A (en) * | 1976-07-26 | 1978-02-08 | Saida Seisakushiyo Yuugen | Inlet and outlet valve structure for fuel gas in gas lighter |
-
1980
- 1980-11-13 FR FR8024108A patent/FR2493823A1/fr active Granted
-
1981
- 1981-10-30 DE DE8181401742T patent/DE3172363D1/de not_active Expired
- 1981-10-30 EP EP81401742A patent/EP0052548B1/fr not_active Expired
- 1981-11-04 KR KR1019810004218A patent/KR850001400B1/ko not_active Expired
- 1981-11-05 JP JP56176556A patent/JPS57106506A/ja active Granted
- 1981-11-12 ES ES507087A patent/ES8302604A1/es not_active Expired
- 1981-11-12 DK DK500481A patent/DK156994C/da not_active IP Right Cessation
- 1981-11-12 CA CA000389905A patent/CA1156022A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK156994B (da) | 1989-10-30 |
| KR850001400B1 (ko) | 1985-09-30 |
| EP0052548B1 (fr) | 1985-09-18 |
| FR2493823B1 (OSRAM) | 1984-09-21 |
| KR830007427A (ko) | 1983-10-21 |
| ES507087A0 (es) | 1983-01-16 |
| EP0052548A1 (fr) | 1982-05-26 |
| CA1156022A (fr) | 1983-11-01 |
| DK156994C (da) | 1990-03-26 |
| JPS57106506A (en) | 1982-07-02 |
| DE3172363D1 (en) | 1985-10-24 |
| ES8302604A1 (es) | 1983-01-16 |
| DK500481A (da) | 1982-05-14 |
| FR2493823A1 (fr) | 1982-05-14 |
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