ALKALI METAL BICARBONATE PARTICLES WITH EXCEPTIONAL FLOWABILITY

• Main Author: SAVARY, DAVID JEAN LUCIEN
• Format: Patent
• Language: English; French
• Published: 30.06.2016
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLICBEVERAGES; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INORGANIC CHEMISTRY; METALLURGY; MILLING GRAIN; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATORY TREATMENT OF GRAIN FOR MILLING; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR RELEVANT APPARATUS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING

The invention leads to powder compositions comprising alkali metal bicarbonate particles and an amino acid as additive. The invention also relates to a process for preparing alkali metal bicarbonate particles by spray-drying of an aqueous solution comprising 1 - 10 % by weight of alkali metal bicarbonate and an amino acid as additive. The invention furthermore relates to a process for preparing alkali metal bicarbonate particles by co-grinding the alkali metal bicarbonate in the presence of an amino acid as additive.