PL35618B1 - - Google Patents
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- Publication number
- PL35618B1 PL35618B1 PL35618A PL3561851A PL35618B1 PL 35618 B1 PL35618 B1 PL 35618B1 PL 35618 A PL35618 A PL 35618A PL 3561851 A PL3561851 A PL 3561851A PL 35618 B1 PL35618 B1 PL 35618B1
- Authority
- PL
- Poland
- Prior art keywords
- water
- magnesium oxide
- flotation
- sedimentation
- magnesium carbonate
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- 150000004760 silicates Chemical class 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- 238000001354 calcination Methods 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Description
W celu przygotowania wody do zastosowania w przemysle, zwlaszcza wody do zasilania ko¬ tlów wysokopreznych, wazne jest usuniecie z niej zwiazków krzemu. Znane sposoby odkrze¬ mowywania wody polegaja na dzialaniu na wo¬ de wodorotlenkiem wapnia lub tlenkiem magne¬ zu lub obydwoma czynnikami równoczesnie.Zauwazono przy tym, ze pewne gatunki han¬ dlowe tlenku magnezu daja dobre wyniki, nato¬ miast inne gatunki zupelnie nie nadaja sie do tego celu.Przedmiotem Wynalazku jest sposób otrzymy¬ wania tlenku magnezu, nadajacego sie do od¬ krzemowywania wody, wychodzac z powszech¬ nie dostepnego technicznego^ weglanu mag¬ nezu.Stwierdzono, ze przyczyna niepowodzen przy odkrzemowywaniu wody za pomoca pewnych gatunków itlenfcu magnezu jest badz obecnosc w nich pewnego typu krzemianów, badz zmniej¬ szona aktywnosc spowodowana niewlasciwym *) Wlasciciel patentu oswiadczyl, ze wynalazca jest kiz. Stanislaw Wolaki. prazeniem. Co sie tyczy krzemianów zawartych w tlenku magnezu stwierdzono, ze istnieja zwiazki krzemu, zawarte w tlenku magnezu obojetne dla odkrzemowywania wody oraz zwiaz¬ ki, które moga w wodzie zwiekszyc zawartosc krzemu i które czynia dany tlenek magnezu nie¬ przydatnym do odkrzemowywania wody. Dowodzi tego fakt, ze procentowa zawartosc krzemu, nie zawsze idzie w parze z wlasciwosciami danego tlenku magnezu wyrazajacymi sie jego przydat¬ noscia do odkrzemowywania wody. Stwierdzono, ze za pomoca flotacji wykonywanej na zimno, zwlaszcza przez mieszanie powietrzem zawie¬ siny weglanu magnezu oraz za pomoca frakcjo¬ nowanego osadzania tej zawiesiny, czyli tak zwanej sedymentacji, mozna otrzymac wieksza czesc produktu wolna od tych krzemianów, któ¬ re po przeprowadzeniu weglanu w tlenek wply¬ waja ujemnie na jego przydatnosc do odkrzemo¬ wywania wody. Co sie tyczy wyprazania wegla¬ nu na tlenek, stwierdzono, ze w granicach tem¬ peratury 4000 — 550In order to prepare water for industrial use, especially water for feeding high-pressure coils, it is important to remove silicon compounds therefrom. Known methods of removing water include treating the water with calcium hydroxide or magnesium oxide, or both. It has been found that some commercial grades of magnesium oxide perform well, while other grades are completely unsuitable. The subject of the invention is a method of obtaining magnesium oxide, suitable for water demilization, starting from commercially available technical magnesium carbonate. It has been found that the cause of the failure to remove water with certain grades of magnesium oxide is or the presence of certain types of silicates in them, or a reduced activity due to improper *) The patent owner stated that the inventor was kiz. Stanislaw Wolaki. ironing. With regard to the silicates contained in the magnesium oxide, it has been found that there are silicon compounds contained in the magnesium oxide that are inert to the de-sludging of water and compounds which can increase the silicon content in water and which render the respective magnesium oxide unsuitable for the de-silting of water. This is evidenced by the fact that the percentage of silicon does not always go hand in hand with the properties of a given magnesium oxide, expressed as its suitability for de-sludging water. It has been found that by means of cold flotation, especially by stirring a suspension of magnesium carbonate with air, and by means of fractional settling of the suspension, i.e. sedimentation, it is possible to obtain the greater part of the product free of these silicates, which, when carried out with carbonate the oxide has a negative effect on its suitability for the de-sludging of water. Regarding the carbonization to the oxide, it has been found that the temperature ranges from 4,000 to 550
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL35618B1 true PL35618B1 (en) | 1952-12-31 |
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