US1375596A - Manufacture of perborates - Google Patents
Manufacture of perborates Download PDFInfo
- Publication number
- US1375596A US1375596A US356651A US35665120A US1375596A US 1375596 A US1375596 A US 1375596A US 356651 A US356651 A US 356651A US 35665120 A US35665120 A US 35665120A US 1375596 A US1375596 A US 1375596A
- Authority
- US
- United States
- Prior art keywords
- electrolysis
- perborates
- solution
- perborate
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 8
- 238000005868 electrolysis reaction Methods 0.000 description 11
- JMANVNJQNLATNU-UHFFFAOYSA-N glycolonitrile Natural products N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- -1 cyanogen compound Chemical class 0.000 description 7
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229960001922 sodium perborate Drugs 0.000 description 3
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000266 injurious effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
- C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/28—Per-compounds
- C25B1/32—Perborates
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
- D05B21/002—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets consisting of lateral displacement of the workpieces by a feed-dog or a fluted presser foot
Definitions
- This invention has for its object an improved process for the manufacture of perborates by electrolysis.
- the output decreases and may reach a point at which it is impossible to obtain solid perborate.
- Careful experiments which I have made have led to the conclusion that the unsatisfactory results referred to are due to the presence of catalytically acting substances, especially iron compounds. Based upon these considerations the correct course would seem to be to remove the said injurious substances.
- the present invention is based upon the surprising observation that the decrease in output referred to above does not take place when a cyanogen compound is added to the electrolyte, and in accordance with this observation the present invention has for its object to subject the solution in question to electrolysis in the presence of a cyanogen compound, such as for instance sodium cyanid.
- a cyanogen compound such as for instance sodium cyanid.
- the quantity of cyanid to be added to the bath varies within wide limits in accordance with the conditions in each instance.
- the effect will usually begin when the added quantity is about 0.3 g. of NaCN to the liter, and the addition may for instance be increased as desired, for instance to about 4 g. to the liter.
- An explanation of the surprising effect of the cyanogen compound may consist therein that the catalytically acting substances are converted into cyanogen compounds, from wlilich the metal is easily separated cathodica y.
- the cathod proper of the electrolyzer can be made use of, or one or more auxiliary cathodes may be arranged.
- the said auxiliary cathodes may have a larger surface than the cathodes proper, so that a more rapid and complete precipitation is attained.
- the purification of the electrolyte may also be eflected in a separate eel].
- the cyanid will be gradually decomposed, so that additional quantities of the cyanogen compound must be added. Instead of adding one single cyanogen compound, a mixture of such compounds may be used.
- the electrolysis is then interrupted.
- the solution is introduced into another vessel Where sodium perborate is caused'to crystallize by means of cooling or by other suitable means.
- the mother liquor is regenerated and prepared for repeated electrolyzation Additional quantities of cyanid are added to the electrolyte to replace that decomposed.
- Process for the production of perborate by electrolysis of a borate solution comprising the steps of subjecting the borate solution to electrolysis in the presence of a cyanogen compound.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Textile Engineering (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US356651A US1375596A (en) | 1919-04-03 | 1920-02-06 | Manufacture of perborates |
| NL14800A NL7319C (de) | 1919-04-03 | 1920-05-12 | |
| FR516629A FR516629A (fr) | 1919-04-03 | 1920-06-07 | Procédé pour la fabrication de perborates |
| AT91009D AT91009B (de) | 1919-04-03 | 1920-06-14 | Verfahren zur Darstellung von Perborat durch Elektrolyse. |
| CH86843D CH86843A (de) | 1919-04-03 | 1920-06-15 | Verfahren zur Darstellung von Natriumperborat durch Elektrolyse. |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO86843X | 1919-04-03 | ||
| US356651A US1375596A (en) | 1919-04-03 | 1920-02-06 | Manufacture of perborates |
| NL14800A NL7319C (de) | 1919-04-03 | 1920-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1375596A true US1375596A (en) | 1921-04-19 |
Family
ID=40262710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US356651A Expired - Lifetime US1375596A (en) | 1919-04-03 | 1920-02-06 | Manufacture of perborates |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1375596A (de) |
| AT (1) | AT91009B (de) |
| CH (1) | CH86843A (de) |
| FR (1) | FR516629A (de) |
| NL (1) | NL7319C (de) |
-
1920
- 1920-02-06 US US356651A patent/US1375596A/en not_active Expired - Lifetime
- 1920-05-12 NL NL14800A patent/NL7319C/xx active
- 1920-06-07 FR FR516629A patent/FR516629A/fr not_active Expired
- 1920-06-14 AT AT91009D patent/AT91009B/de active
- 1920-06-15 CH CH86843D patent/CH86843A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7319C (de) | 1922-07-15 |
| AT91009B (de) | 1923-01-25 |
| FR516629A (fr) | 1921-04-23 |
| CH86843A (de) | 1920-10-16 |
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