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1970-08-25
Desalination distillation using barium carbonate as descaling agent
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1990-12-11
Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges
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1998-02-12
Magnesium-unterstützte Auswaschung von Schwefeldioxid mit Herstellung von Gips
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1933-12-05
Manufacture of sulphites
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1976-11-30
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1956-02-07
Method of introducing sulfite waste
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1993-11-09
Modification of magnesium-enhanced lime flue gas desulfurization process to improve solids dewatering
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1972-12-19
Process for the manufacture of sodium sulphate
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1908-03-03
Process of extracting uranium and vanadium from ores.
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1986-10-15
Способ получени сульфита натри из сточных вод
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1904-01-05
Method of clarifying liquors
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1927-05-17
Process of making ligno-tanning material from waste sulphite liquor
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1913-05-20
Process of precipitating ulmic compounds from the black liquors of soda pulp-mills.
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1920-10-05
Process for obtaining potassium chlorid
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1985-07-15
Способ гидрометаллургической переработки сурьмусодержащих продуктов
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1994-10-26
低铁硫化钠的制作工艺
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1943-02-16
Process of regeneration of an absorption liquid consisting of basic aluminium sulphate for the recovery of sulphur dioxide
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1927-11-22
Process of producing ferrocyanides from crude calcium cyanides
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1985-10-23
Способ переработки боксита
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1977-01-30
Способ извлечени селена из водных растворов
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1972-06-13
Production of barium hydroxide
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1926-07-13
Process of preparing concentrated sulphite cellulose extract containing magnesium compounds
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1941-05-20
Manufacture of sodium sulphate
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1932-11-22
Treatment of caustic solutions for the production of solutions and of solid caustic soda of a high degree of purity
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1970-09-03
Process for the separation of useful compounds from waste formed from the production of alumina by the bayer process