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DE640626C
|
|
Process for the production of sulfur trioxide
|
|
DE576175C
|
|
Extraction of sulfur
|
|
DE581079C
|
|
Process for the production of practically silicon- and aluminum-free iron by means of a silicothermal reaction
|
|
DE551605C
|
|
Production of potassium bicarbonate or potassium carbonate
|
|
DE549341C
|
|
Process for the production of 1 - 1 - 2-trichloroethane
|
|
DE610097C
|
|
Manufacture of phosphoric acid
|
|
DE516970C
|
|
Process for the preparation of mixtures of monopotassium and monoammonium orthophosphate
|
|
DE547882C
|
|
Process for the preparation of primary alkali orthophosphates
|
|
DE540077C
|
|
Process for the production of secondary potassium orthophosphate with simultaneous production of tertiary ammonium phosphate
|
|
DE565388C
|
|
Production of alkali pyrophosphates from alkali chlorides and phosphoric acid and acidic phosphates
|
|
DE526602C
|
|
Production of tetraalkali pyrophosphates from alkali chlorides and monoalkali ammonium orthophosphates or monoalkali orthophosphates
|
|
DE550156C
|
|
Production of potassium bicarbonate or potassium carbonate
|
|
DE452266C
|
|
Production of hydrogen peroxide from barium peroxides by conversion with carbonic acid
|
|
DE465763C
|
|
Generation of hydrogen peroxide from barium peroxide by conversion with carbonic acid
|
|
DE460029C
|
|
Generation of hydrogen peroxide from barium peroxide by means of carbonic acid
|
|
DE460030C
|
|
Production of hydrogen peroxide from barium peroxide using carbonic acid
|
|
DE447537C
|
|
Process for the digestion of chrome ores with acids
|
|
DE454758C
|
|
Representation of arsenic acid
|
|
DE444122C
|
|
Process for the conversion of barium carbonate into barium oxide
|
|
DE443237C
|
|
Process for the conversion of barium carbonate into barium oxide
|
