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DE731471C
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Device for obtaining water from air
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DE675015C
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Method of preserving herrings
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DE620170C
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Process for the production of barium hydroxide
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DE657291C
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Process for the production of hydrogen peroxide
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DE558431C
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Production of hydrogen peroxide from the elements
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DE461183C
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Production of coarsely crystalline sodium perborate
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DE454862C
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Process for the production of high percentage, non-molten, highly active lead oxide
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DE441259C
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Distillation or concentration of hydrogen peroxide
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DE417019C
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Process for the production of strontium oxide from strontium carbonate
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DE416005C
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Process for the digestion of alkaline earth sulfates, especially barium sulfate
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DE355299C
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Process for the production of pure chlorinated barium from barium carbonate and chloromagnesium lye
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DE396214C
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Process for the extraction of porous, spongy, high-percentage barium oxide from barium carbonate
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DE330448C
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Process for coloring raw materials
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US1041583A
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Process of obtaining porous and fairly-pure barium oxid from barium carbonate.
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