Process for obtaining cellulose using seawater, characterized in that the plant material is subjected for a half hour to treatment in a solution of 1% naoh, at ordinary boiling and pressure, treating it subsequently for four hours with another solution of naoh at 4º c. % and temperature not exceeding 140ºC .; the resulting paste is first washed with sea water or a well located in its vicinity, in which all the hardnesses will have been precipitated in advance by treating them with a mixture of sodium carbonate and calcium oxide, with further decantation, and then said paste will be washed with water free of dissolved salts, finally proceeding to its bleaching under mild conditions. (Machine-translation by Google Translate, not legally binding)
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