PROCESS FOR PRODUCING MICROCRYSTALLINE CELLULOSE WITH REDUCED NITRITE SALT CONTENT

A process for producing microcrystalline cellulose with a reduced nitrite sale content. The process comprises the steps of: i) acidic hydrolysis of cellulosic material to produce crude microcrystalline cellulose (MCC); ii) washing and at least partially neutralizing the crude MCC obtained in step i)...

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Bibliographische Detailangaben
Hauptverfasser:	ZHU, Koudi, PETERMANN, Oliver, APPELL, Robert B
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A process for producing microcrystalline cellulose with a reduced nitrite sale content. The process comprises the steps of: i) acidic hydrolysis of cellulosic material to produce crude microcrystalline cellulose (MCC); ii) washing and at least partially neutralizing the crude MCC obtained in step i) to obtain an MCC wet cake; and iii) spray-drying the MCC wet cake. After step ii) or step iii) or both of steps ii) and iii), the MCC is subjected to a heat treatment.