Narodna in univerzitetna knjižnica, Ljubljana (NUK)
-
B2O3 and CaO in the magnesium oxide from seawater = B2O3 in CaO v magnezijevem oksidu iz morske vodeMartinac, Vanja ; Labor, Miroslav ; Petric, NedjeljkaWe have examined the effect of distilled water with a pH of 12.50 during the rinsing of a precipitate of magnesium hydroxide, obtained from seawater by sub-stoichiometric precipitation with 80% of ... the stoichiometric quantity of dolomite lime as the precipitation reagent. However, with this precipitation method the content of B[sub]{2}O[sub]{3} in the product increases, i.e., magnesium oxide obtained from seawater. The purpose of this study was not onlyto reduce the B[sub]{2}O[sub]{3} quantity as much as possible, but also to determine the minimum number of rinses needed to obtain calcined magnesium oxide with a satisfactory quality. Specifically, boron causes significant disturbances in the electrolysis of magnesium chloride used to obtain metal magnesium if magnesium chloride obtained from seawater is used as the cell charge, and it also adversely affects the quality of the refractory material produced from the sintered magnesium oxide obtained from seawater. The results indicate that if this method of rinsing the magnesium hydroxide precipitate is used, the B[sub]{2}O[sub]{3} content in the MgO samples (80% precipitation) is 0.069 mass %, which is 66% less than the B[sub]{2}O[sub]{3} content in samples prepared without rinsing the magnesium hydroxide with alkalized distilled water (B[sub]{2}O[sub]{3}=0.200 mass %). We found that it is sufficient to carry out the rinsing by decantation three times, as further rinsing does not cause a further reduction in the amount of B[sub]{2}O[sub]{3} in the sample. This rinsing method does not change the CaO content in calcined magnesium oxide, which indicates that further rinsing should be done with non-alkalized distilled water.Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 40, št. 2, mar.-apr. 2006, str. 65-68)Vrsta gradiva - članek, sestavni delLeto - 2006Jezik - angleškiCOBISS.SI-ID - 424618
Avtor
Martinac, Vanja |
Labor, Miroslav |
Petric, Nedjeljka
Teme
morska voda |
magnezijev hidroksid |
izpiranje |
usedanje |
borov oksid |
magnezijev oksid
![loading ... loading ...](themes/default/img/ajax-loading.gif)
vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 40, št. 2, mar.-apr. 2006, str. 65-68)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|---|
Martinac, Vanja | ![]() |
Labor, Miroslav | ![]() |
Petric, Nedjeljka | ![]() |
Vir: Osebne bibliografije
in: SICRIS
Izberite prevzemno mesto:
Prevzem gradiva po pošti
Naslov za dostavo:
Med podatki člana manjka naslov.
Storitev za pridobivanje naslova trenutno ni dostopna, prosimo, poskusite še enkrat.
S klikom na gumb "V redu" boste potrdili zgoraj izbrano prevzemno mesto in dokončali postopek rezervacije.
S klikom na gumb "V redu" boste potrdili zgoraj izbrano prevzemno mesto in naslov za dostavo ter dokončali postopek rezervacije.
S klikom na gumb "V redu" boste potrdili zgoraj izbrani naslov za dostavo in dokončali postopek rezervacije.
Obvestilo
Trenutno je storitev za avtomatsko prijavo in rezervacijo nedostopna. Gradivo lahko rezervirate sami na portalu Biblos ali ponovno poskusite tukaj kasneje.
Gesla v Splošnem geslovniku COBISS
Izbira mesta prevzema
Gradivo iz matične enote je brezplačno. Če je gradivo na mesto prevzema dostavljeno iz drugih enot, lahko knjižnica to storitev zaračuna.
Mesto prevzema | Status gradiva | Rezervacija |
---|
Rezervacija v teku
Prosimo, počakajte trenutek.
Rezervacija je uspela.
Rezervacija ni uspela.
Rezervacija...
Članska izkaznica:
Mesto prevzema:
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi