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PL281036A1
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Method of obtaining a copper-chromium catalist
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PL276956A1
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Method for extraction of high-purity hydrogen for organic syntheses
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PL270068A1
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Cress-section of an outrigger in particular that carrying a working platform
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PL269433A1
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Method of obtaining esters
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PL269388A1
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Method of obtaining urea-formaldehyde resins for impregnation of paper substrates
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PL258008A1
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Method of obtaining urea-formaldehyde adhesives for use in production of wood-like boards
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PL251227A1
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Method of isolating phtalic anhydride from gases and apparatus therefor
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PL250889A1
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Method of obtaining saturated fatty alcohols
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PL250219A1
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Method of obtaining phtalic esters
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PL249756A1
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Condenser for condensing phtalic anhydride
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PL245966A1
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Method of manufacture of unsaturated fatty acids
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PL247648A1
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Method of obtaining phtalic esters
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PL243337A1
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Stationary reactor for catalytical oxydation of hydrocarbons
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PL243078A1
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Sealing plug for stopping stub pipes
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PL242444A1
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Method of manufacture of anthraquinone
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PL241183A1
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Method of receiving of condensate in the process of washing out of carbon dioxide from synthesis gas
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PL237245A1
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Distillation apparatus
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PL236396A1
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Apparatus for vaporization of naphtalene in the process of manufacture of phtalic anhydride
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PL236334A1
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Apparatus for oxidation of nitrogen oxides with concentrated nitric acid
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PL235199A1
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Burner for hydrocarbon incomplete burning reactor
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