GB1305493A - - Google Patents
Info
- Publication number
- GB1305493A GB1305493A GB1050171A GB1050171A GB1305493A GB 1305493 A GB1305493 A GB 1305493A GB 1050171 A GB1050171 A GB 1050171A GB 1050171 A GB1050171 A GB 1050171A GB 1305493 A GB1305493 A GB 1305493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- borax
- solution
- ammonium borates
- stoichiometrically required
- aqueous solution
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
- C01B35/12—Borates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
1305493 Borax SOC CHIMICA LARDERELLO SpA 21 April 1971 [21 April 1970] 10501/71 Heading C1A Aqueous sodium borate solution, from which borax can be crystallized directly in the penta- and/or decahydrate form, is produced from a source of Na 2 O in the form of sodium hydroxide, sodium carbonate and/or sodium bicarbonate and from a clear aqueous solution of ammonium borates resulting from the treatment of one or more boron-calcium minerals with ammonia and CO 2 . The solution of ammonium borates is introduced into a distilllation column in which it is decomposed by heat to produce a solution which is substantially free of ammonia. There is introduced into the upper part of the distillation column (i) the clear aqueous solution of ammonium borates and (ii) at least 50% of the quantity of Na 2 O which is stoichiometrically required to convert the ammonium borates into borax, the remaining portion of the Na 2 O which is stoichiometrically required being subsequently introduced, as sodium hydroxide, into the solution which is taken out at the bottom of the column whereby an aqueous solution of borax is obtained from which penta- and/or decahydrated borax can be crystallized directly. Preferably stage (ii) comprises 50 to 82% of the Na 2 O which is stoichiometrically required.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE749245 | 1970-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1305493A true GB1305493A (en) | 1973-01-31 |
Family
ID=3856395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1050171A Expired GB1305493A (en) | 1970-04-21 | 1971-04-21 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE749245A (en) |
| GB (1) | GB1305493A (en) |
-
1970
- 1970-04-21 BE BE749245D patent/BE749245A/en unknown
-
1971
- 1971-04-21 GB GB1050171A patent/GB1305493A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE749245A (en) | 1970-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |