Manufacture and application of new lignone derivatives

Manufacture of black dye

Manufacture of new sulphurized derivatives of phenols

Manufacture of non-dyeing sulphurized derivatives of phenol

Manufacture of valuable products from ligninsulphonic acid,...

Means for accelerating the separation of water and solid...

Medicinally valuable, water-soluble, poly-n-quaternary...

Metal and sulphur-containing organic compounds

Metal lignin sulphonate manufacture

Method and apparatus for extracting pigments

Method and apparatus for making herbal extracts using...

Method and apparatus for producing continuously nitrohumic...

Method and apparatus involving supercritical fluid extraction

Method and reagent for reducing errors in enzymatic assays

Method for fractionating aqueous extracts from barks of trees

Method for improving the solubility of unstable organic...

Method for liquefying lignin

Method for manufacturing lignin for carbon fiber spinning

Method for preparing acetylenic compounds

Method for preparing and conserving free radicals