Abstract: In a press forming device and a press forming method for press-forming a workpiece that includes a load control region to which a constant load is to be applied, the press forming device includes a die unit that includes an upper die and a lower die that sandwich the workpiece; a slider that holds the upper die; a bolster that holds the lower die; a pressing mechanism that presses the slider toward the bolster at a plurality of pressing points; and one or more support blocks arranged around the die unit, between the bolster and the slider. The support block is arranged farther outward than the pressing points, on a line that extends, in an arrangement direction of the pressing points, from a reference point on an end portion of the load control region.

Abstract: A method of purifying a crude nickel sulfate solution to give pure nickel sulfate through solvent extraction, in which the impurities such as cobalt, calcium, magnesium, iron, zinc, copper, sodium, ammonia and others to be in the crude solution are removed while, if necessary, effectively recovering cobalt, and for which the amount of a neutralizer to be used is reduced and the cost of treating wastewater is also reduced includes an extraction step of adding an organic acid extractant to a crude nickel sulfate solution to thereby extract nickel into the extractant to give a nickel-loaded organic phase, followed by a scrubbing step of scrubbing the organic phase as obtained in the previous extraction step with a nickel-containing scrub solution to thereby remove sodium and ammonia from the organic phase; and a second purifying step of adding a crude nickel sulfate solution to the nickel-retaining organic phase as obtained in the previous first purifying step so as to exchange the nickel in the organic phase wi

Abstract: A method of solvent extraction of a nickel sulfate solution uses a multi-stage, counter-current, organic solvent extraction system composed of at least two extractors connected in series, and includes a first extraction step of feeding a crude nickel sulfate solution that contains sodium and ammonium impurities into a second-stage extractor, wherein it is treated in countercurrent flow and at a pH of 6.5 to 7.0 with an organic extractant fed into the second-stage extractor from the first-stage extractor, to thereby extract some of nickel in the crude nickel sulfate solution into the organic extractant; and a second extraction step of transferring the nickel-containing, organic phase to an organic phase-scrubbing step to remove sodium and ammonium, while transferring the nickel sulfate solution, from the first extraction step and from which some of nickel has been removed, to the first-stage extractor, wherein it is treated in countercurrent flow and at a pH of 5.5 to 6.

Abstract: The invention relates to a combination popsicle wherein an ice layer whose surface is uneven is formed on the circumference of a core stuff, a method for making the same and a device for the method. As an ice material for forming the ice layer, irregular ice crystals in size are used which is provided by collecting uniformly dispersed fine ice crystals in a cohering process to form into lumps and by crushing the lumps. Because of this, with the irregular ice crystals, uneven form which is clear can be constantly formed on the surface of the ice, popsicle.

Abstract: The invention relates to a combination popsicle wherein an ice layer whose surface is uneven is formed on the circumference of a core stuff, a method for making the same and a device for the method. As an ice material for forming the ice layer, irregular ice crystals in size are used which is provided by collecting uniformly dispersed fine ice crystals in a cohering process to form into lumps and by crushing the lumps. Because of this, with the irregular ice crystals, uneven form which is clear can be constantly formed on the surface of the ice, popsicle.