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    • 1. 发明专利
    • FLAKE PRODUCTION APPARATUS
    • JPH01317537A
    • 1989-12-22
    • JP14864188
    • 1988-06-16
    • SUMITOMO CHEMICAL CO
    • NAKAMAE ISAO
    • B01J2/24
    • PURPOSE:To contrive to smooth-face the surface of a cake produced by providing a cylindrical damming-up means near the top of a rotating drum in its rotating direction and along the entire axial length thereof. CONSTITUTION:A rotating drum 2 is immersed in stock liquid L of a receiving pan 1 to produce a first cake 4 on the surface of said drum 2. A cylindrical damming-up means 31 is placed near the top of the drum 2 in its rotational direction and along the entire axial length of said drum 2, thereby forming a top reservoir L2 therebetween for holding the stock liquid. The damming-up means 31 is so positioned that its exterior surface is brought into contact with the surface of the first cake 4 formed on the surface of the drum 2 or very slightly spaced apart therefrom, whereby the surface of the first cake 4 can be smooth-faced and whereby the stock liquid can be supplied uniformly on the surface of the cake 4 at the top of the drum 2.
    • 4. 发明专利
    • JPH05238973A
    • 1993-09-17
    • JP4115392
    • 1992-02-27
    • SUMITOMO CHEMICAL CO
    • HAGITANI KOJUNAKAMAE ISAO
    • C07C37/84C07C39/06
    • PURPOSE:To obtain the subject compound reduced in the occurrence of fine powder, excellent in fluidity, operability and blocking resistance and useful as an antioxidant, etc., by dissolving di-t-butyl methylphenol in a mixture of an organic solvent immiscible with water and water, and then crystallizing the methylphenol derivative under specific conditions. CONSTITUTION:2,6-di-t-Btyl-4-methylphenol is dissolved in a mixture of an organic solvent immiscible with water, e.g. hexane and water, and then crystallized from a two layer system mixture consisting of an organic layer and a water layer under stirring condition where power P defined by the formula (Np, rho, n, d, gC and V are power number, liquid specific gravity, number of agitation, diameter of stirring blade, acceleration of gravity and liquid volume, respectively) is in the range of 12-120kg/s.m to provide the objective compound.
    • 5. 发明专利
    • PRODUCTION OF PARTICULATE MATERIAL
    • JPH05220374A
    • 1993-08-31
    • JP2382992
    • 1992-02-10
    • SUMITOMO CHEMICAL CO
    • NAKAMAE ISAOSASAKI YOSHIOYAMAUCHI NORIAKIYOSHIKOSHI KAZUMI
    • B01J2/00B01J2/16
    • PURPOSE:To uniformize a coated layer by allowing nucleus groups to fall into the space in a film state, spraying droplet groups to the oblique low part toward the whole middle part of the falling film part, combining the neuclei with the droplets of liquid material to produce combined particles and solidifying the same in a droplet solidifying section continued to the falling end point thereof. CONSTITUTION:Particulate material having prescribed size is produced by dispersing and spraying droplets formed of liquid material capable of sticking to granulated nucleus groups toward the same. In this case, the nucleus groups are allowed to fall from a slender falling port part 41 having a specified width so as to form a falling film part F in the space. On the other hand, the droplet groups of liquid material are sprayed to the oblique low part toward the whole middle region of the falling film part F from a spray nozzle N. Thereby, the nucleuses are combined with the droplets of liquid material to produce the combined particles. The combined particles are solidified in a droplet solidifying section 3 continued to the falling end point thereof. As a result, the coated layer is uniformized and also a device for sticking the droplets to the nucleous groups is miniaturized.