PL398B1 - Procedure for increasing the electrolytic efficiency of the current in the production of sodium perborate by electrolysis of sodium carbonate solution in the presence of borate. - Google Patents
Procedure for increasing the electrolytic efficiency of the current in the production of sodium perborate by electrolysis of sodium carbonate solution in the presence of borate. Download PDFInfo
- Publication number
- PL398B1 PL398B1 PL398A PL39820A PL398B1 PL 398 B1 PL398 B1 PL 398B1 PL 398 A PL398 A PL 398A PL 39820 A PL39820 A PL 39820A PL 398 B1 PL398 B1 PL 398B1
- Authority
- PL
- Poland
- Prior art keywords
- electrolysis
- procedure
- increasing
- borate
- electrolytic efficiency
- Prior art date
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- 238000005868 electrolysis reaction Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 title claims 2
- 229910000029 sodium carbonate Inorganic materials 0.000 title claims 2
- 229960001922 sodium perborate Drugs 0.000 title claims 2
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 title claims 2
- 239000003792 electrolyte Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
Description
Przy dalszem opracowaniu sposobu postepowania dla wyrobu nadboranów droga elektrolizy, poszukiwania nasunely pytanie, czy rzeczywiscie gestosc pradu nie wplywa wr szerokich granicach na sprawnosc elektrolityczna; spostrzezono, ze taki wplyw istnieje, a mianowicie, ze nieoczekiwanie sprawnosc elektrolityczna zwieksza sie z rosnaca gestoscia pradu.Wobec tego zastosowano przy wyro¬ bie nadboranów droga elektrolizy wy¬ soka gestosc pradu anodowa i katodowa.Ponizej podane doswiadczenia wyja¬ sniaja wplyw gestosci pradu na sprawnosc elektrolityczna: Elektrolit zawieral w 1 1 13,8 g Na2COs, 50 g dwuweglanu sodu, 20 g nad¬ boranu i potrzebna ilosc boraksu. Katoda skladala sie ze sztabki zelaznej, zanurzo¬ nej na 61 cm do elektrolitu. Za anode sluzyla siatka z drutu platynowego o 50 cm2 przy pierwszem doswiadczeniu, 25 cm2 przy drugiem, i 12Va cm2 przy trzeciem.Sila pradu wynosila przy wszystkich trzech doswiadczeniach 5 amp. tak, ze osia¬ gnieto gestosc pradu na anodzie w pierw¬ szem doswiadczeniu 1000 amp., w dru¬ giem—2000 amp,, w trzeciem—4000 amp. na 1 m2. Katodowa gestosc pradu byla ciagle jednakowa i wynosila okolo 820 amp.Doswiadczenia trwaly po 7 godz. kazde.Wyniki widac w nastepujacej tablicy: Czynn. tlenu Sprawnosc osiagn. gr. elektrolit.# Doswiadczenie I. . 1,43 g II. • 2,74 „ III. • 3,45 „ 13,55% 25,4% 33,5%Liczby nie przedstawiaja naturalnie wartosci granicznych, wskazuja tylko przy jednakowych warunkach otrzymane po¬ równawcze dane.Jezeli podniesie sie zarazem i anodo¬ wa i katodowa gestosc pradu, zreszta przy jednakowych warunkach, albo tez przy jednakowej stalej anodowej gestosci tylko katodowa, to otrzymuje sie równiez zwiekszenie sprawnosci elektrolitycznej, chociaz wplyw katodowej gestosci pradu na wydajnosc nie ma tak wysokiego zna¬ czenia. Przy jednakowej stalej anodowej gestosci pradu sprawnosc elektrolityczna przy wyzej podanych warunkach wzrasta z 14,4 do 20,5%) jezeli katodowa gestosc pradu podniesiemy z 1000 amp. na 2000 amp. na 1 m2. Przy dalszem podniesieniu wystepujejeszcze tylko nieznaczna zmiana. PLWith the further development of the procedure for the production of perborates, the path of electrolysis, the search raised the question whether the current density does not really affect the electrolytic efficiency within wide limits; it has been noticed that such an influence exists, namely that the electrolytic efficiency unexpectedly increases with increasing current density. Therefore, in the production of perborates, a high anode and cathode current density was used. The following experiments explain the effect of the current density on electrolytic efficiency: The electrolyte contained in 11.8 g of Na2COs, 50 g of sodium bicarbonate, 20 g of perborate and the required amount of borax. The cathode consisted of a bar of iron immersed 61 cm into the electrolyte. The anode was a 50 cm2 platinum wire mesh for the first experiment, 25 cm2 for the second, and 12 Va cm2 for the third experiment. The current strength for all three experiments was 5 amps. so that the current density at the anode was achieved in the first experiment 1000 amps, in the second - 2000 amps, and in the third - 4000 amps. per 1 m2. The cathodic current density was still uniform at around 820 amps. The experiments lasted 7 hours. each. The results are shown in the following table: Oxygen Efficiency achieved. gr. electrolyte. # Experience I.. 1.43 g II. • 2.74 "III. • 3.45 “13.55% 25.4% 33.5% The figures do not naturally represent the limit values, they only indicate, under the same conditions, the obtained comparative data. If both the anodic and cathode current densities increase, then under the same conditions, or with the same constant anodic density only the cathode, one also obtains an increase in the electrolytic efficiency, although the effect of the cathodic current density on the efficiency is not so significant. With the same constant anode current density, the electrolytic efficiency under the above-mentioned conditions increases from 14.4 to 20.5%) if the cathodic current density is increased from 1000 amps. for 2000 amp. per 1 m2. There is only a slight change on further lifting. PL
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Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL398B1 true PL398B1 (en) | 1924-07-30 |
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