Abstract: [Object] It is intended to provide a crystalline maltitol powder less prone to consolidation, which is free from the formation of a lump during delivery or storage thereof, does not require pulverization or re-classification in use, is easy to handle in transfer, package opening, addition or mixing to another food material, and so on, and allows for automated transportation and so on. [Means for Solving the Object] The crystalline maltitol powder less prone to consolidation is obtained by charging crystalline or powdery maltitol into a shelf type dryer, a tunnel-type dryer, a cylindrical container, or the like and subjecting the equipment or container to a treatment wherein an air having a temperature of 30 to 33° C. and a relative humidity of 5% is allowed to flow into the equipment or container from one side thereof and withdrawn out of the other side thereof at a space velocity of 11 to 12 for consecutive 24 hours.

Abstract: [Object] It is intended to provide a crystalline maltitol powder less prone to consolidation, which is free from the formation of a lump during delivery or storage thereof, does not require pulverization or re-classification in use, is easy to handle in transfer, package opening, addition or mixing to another food material, and so on, and allows for automated transportation and so on. [Means for solving the object] The crystalline maltitol powder less prone to consolidation is obtained by charging crystalline or powdery maltitol into a shelf type dryer, a tunnel-type dryer, a cylindrical container, or the like and subjecting the equipment or container to a treatment wherein an air having a temperature of 30 to 33° C. and a relative humidity of 5% is allowed to flow into the equipment or container from one side thereof and withdrawn out of the other side thereof at a space velocity of 11 to 12 for consecutive 24 hours.

Abstract: [Object] It is intended to provide a crystalline maltitol powder less prone to consolidation, which is free from the formation of a lump during delivery or storage thereof, does not require pulverization or re-classification in use, is easy to handle in transfer, package opening, addition or mixing to another food material, and so on, and allows for automated transportation and so on. [Means for solving the object] The crystalline maltitol powder less prone to consolidation is obtained by charging crystalline or powdery maltitol into a shelf type dryer, a tunnel-type dryer, a cylindrical container, or the like and subjecting the equipment or container to a treatment wherein an air having a temperature of 30 to 33° C. and a relative humidity of 5% is allowed to flow into the equipment or container from one side thereof and withdrawn out of the other side thereof at a space velocity of 11 to 12 for consecutive 24 hours.

Abstract: [Object] It is intended to provide a crystalline maltitol powder less prone to consolidation, which is free from the formation of a lump during delivery or storage thereof, does not require pulverization or re-classification in use, is easy to handle in transfer, package opening, addition or mixing to another food material, and so on, and allows for automated transportation and so on. [Means for Solving the Object] The crystalline maltitol powder less prone to consolidation is obtained by charging crystalline or powdery maltitol into a shelf type dryer, a tunnel-type dryer, a cylindrical container, or the like and subjecting the equipment or container to a treatment wherein an air having a temperature of 30 to 33° C. and a relative humidity of 5% is allowed to flow into the equipment or container from one side thereof and withdrawn out of the other side thereof at a space velocity of 11 to 12 for consecutive 24 hours.

Abstract: To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.

Abstract: To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.

Abstract: To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.