GB423295A - A process for the simultaneous manufacture of primary sodium phosphate and boric acid - Google Patents
A process for the simultaneous manufacture of primary sodium phosphate and boric acidInfo
- Publication number
- GB423295A GB423295A GB25019/34A GB2501934A GB423295A GB 423295 A GB423295 A GB 423295A GB 25019/34 A GB25019/34 A GB 25019/34A GB 2501934 A GB2501934 A GB 2501934A GB 423295 A GB423295 A GB 423295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boric acid
- sodium phosphate
- primary sodium
- mother liquor
- simultaneous manufacture
- 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
- C01B35/06—Boron halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Boric acid and primary sodium phosphate are obtained by treating an aqueous solution of borax with orthophosphoric acid, crystallizing the boric acid formed, separating it from the mother liquor and treating the mother liquor for the recovery of the primary sodium phosphate. According to an example, an aqueous solution of borax was treated while stirring with 65 per cent phosphoric acid at a temperature of 70 DEG C. Boric acid was crystallized by cooling to 10 DEG C., and separated from the mother liquor by centrifuging. The mother liquor was freed from residual boric acid by treatment with steam and primary sodium phosphate was then crystallized out. The final mother liquor may be re-used. The boric acid which may contain a small proportion of primary sodium phosphate may be used in the manufacture of glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE423295X | 1933-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB423295A true GB423295A (en) | 1935-01-29 |
Family
ID=6469343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25019/34A Expired GB423295A (en) | 1933-11-02 | 1934-08-30 | A process for the simultaneous manufacture of primary sodium phosphate and boric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB423295A (en) |
-
1934
- 1934-08-30 GB GB25019/34A patent/GB423295A/en not_active Expired
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