GB1375788A - - Google Patents
Info
- Publication number
- GB1375788A GB1375788A GB1848472A GB1848472A GB1375788A GB 1375788 A GB1375788 A GB 1375788A GB 1848472 A GB1848472 A GB 1848472A GB 1848472 A GB1848472 A GB 1848472A GB 1375788 A GB1375788 A GB 1375788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- reaction liquid
- mineral acid
- vesesojuzny
- protsesov
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1375788 Purification of 4,4-dimethyldioxane- 1,3 solution VESESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESOV 20 April 1972 18484/72 Heading C2C A mineral acid and formic acid are separated from an aqueous reaction liquid formed in the synthesis of 4,4-dimethyl dioxane-1,3 from isobutene and formaldehyde in the presence of a strong mineral acid by subjecting the reaction liquid to a two-step electrodialysis. Any residual acid may be removed by means of an ion exchange resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1848472A GB1375788A (en) | 1972-04-20 | 1972-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1848472A GB1375788A (en) | 1972-04-20 | 1972-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1375788A true GB1375788A (en) | 1974-11-27 |
Family
ID=10113224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1848472A Expired GB1375788A (en) | 1972-04-20 | 1972-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1375788A (en) |
-
1972
- 1972-04-20 GB GB1848472A patent/GB1375788A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |