Process for the production of 98% to 100% formic acid
GB461631A
Process for the production of insoluble coatings, impregnations, pressed masses and the like
DE670936C
Bleach for fats and oils
DE695058C
Substitute for pozzolans as hydraulic aggregates
GB421313A
Process for the production of chlorinated rubber
GB412525A
Process for the production of dispersions of chlorinated rubber
DE616447C
Process for the electrolytic extraction of tin from tin-salt solutions
GB416252A
Process for the production of chlorinated rubber
GB400898A
Process for the production of rubber chloride
DE695895C
sions
DE660524C
Process for the production of chlorinated rubber solutions by chlorination of rubber solutions under the action of light rays with strong light intensity
GB409710A
Process for the decomposition of siliceous aluminiferous minerals
GB386208A
Process for the production of potassium carbonate
GB386854A
Process for the decomposition of complex salts composed of double sulphates of potassium and calcium
DE596522C
Manufacture of potash
DE596569C
Process for the decomposition of multiple salts consisting of alkali sulphates and calcium sulphate