Abstract: A price calculation device 200 includes a condition information acquisition unit 221 that acquires condition information representing the condition of a user who is receiving a service, a situation information acquisition unit 222 that acquires situation information representing the situation of the user, and a calculation unit 223 that calculates the price of the service on the basis of the condition information acquired by the condition information acquisition unit 221 and the situation information acquired by the situation information acquisition unit 222.

Abstract: Provided is a surfactant composition which includes high concentrations of a surfactant, has fluidity in a wide concentration range, and does not become clouded when diluted with hard water. This surfactant composition includes component A, component B, and component C described below, wherein a total content of the component A and the component B is 35 to 80% by mass and wherein the component A is at least one sulfonate compound selected from the group consisting of a hydroxyalkane sulfonate and an olefin sulfonate, the component B is a polyoxyalkylene alkyl ether, and the component C is water.

Abstract: The present invention provides a surfactant composition which includes a surfactant at a high concentration, while having fluidity over a wide concentration range. A surfactant composition according to the present invention contains the components A, B, C and D described below, and is configured such that: the total content of the components A, B and C is from 30% by mass to 80% by mass (inclusive); the mass ratio of the total content of the components A and B to the content of the component C, namely (A+B)/C is from 20/80 to 80/20; and the mass ratio of the content of the component A to the content of the component B, namely A/B is from 98/2 to 45/55. A: an internal olefin sulfonic acid and/or a salt thereof; B: an anionic surfactant other than the component A; C: a nonionic surfactant; D: water.

Abstract: Provided is a surfactant composition which includes high concentrations of a surfactant, has fluidity in a wide concentration range, and does not become clouded when diluted with hard water. This surfactant composition includes component A, component B, and component C described below, wherein a total content of the component A and the component B is 35 to 80% by mass and wherein the component A is at least one sulfonate compound selected from the group consisting of a hydroxyalkane sulfonate and an olefin sulfonate, the component B is a polyoxyalkylene alkyl ether, and the component C is water.

Abstract: The present invention provides a surfactant composition which includes a surfactant at a high concentration, while having fluidity over a wide concentration range. A surfactant composition according to the present invention contains the components A, B, C and D described below, and is configured such that: the total content of the components A, B and C is from 30% by mass to 80% by mass (inclusive); the mass ratio of the total content of the components A and B to the content of the component C, namely (A+B)/C is from 20/80 to 80/20; and the mass ratio of the content of the component A to the content of the component B, namely A/B is from 98/2 to 45/55.

Abstract: The present invention relates to a process for producing 2,5-furan dicarboxylic acid by subjecting 5-hydroxymethylfurfural to oxidation reaction in the presence of water, oxygen and an activated carbon-supported metal catalyst containing a noble metal, the process including the following steps (1) and (2) in which the steps (1) and (2) are carried out under a pressure of not less than 0.1 MPa and less than 1.0 MPa while maintaining a reaction solution at a pH of not more than 7, and an amount of the oxygen fed until a time at which the step (2) is terminated is not less than 120 mol % and not more than 140 mol % on the basis of the 5-hydroxymethylfurfural charged: step (1): conducting the oxidation reaction at a temperature of not lower than 50° C. and not higher than 110° C.

Abstract: The present invention relates to a process for producing 2,5-furan dicarboxylic acid by subjecting 5-hydroxymethylfurfural to oxidation reaction in the presence of water, oxygen and an activated carbon-supported metal catalyst containing a noble metal, the process including the following steps (1) and (2) in which the steps (1) and (2) are carried out under a pressure of not less than 0.1 MPa and less than 1.0 MPa while maintaining a reaction solution at a pH of not more than 7, and an amount of the oxygen fed until a time at which the step (2) is terminated is not less than 120 mol % and not more than 140 mol % on the basis of the 5-hydroxymethylfurfural charged: step (1): conducting the oxidation reaction at a temperature of not lower than 50° C. and not higher than 110° C.