PRODUCTION OF SOLID DISPERSION LIQUID

    公开(公告)号:JPH10286478A

    公开(公告)日:1998-10-27

    申请号:JP9560997

    申请日:1997-04-14

    Applicant: KAO CORP

    Abstract: PROBLEM TO BE SOLVED: To prevent an article to be pulverized from being agglomerated caused by a heat generating in a pulverizer, and local residence of a slurry of the article to be pulverized and the article to be pulverized and a dispersant from being deteriorated thermally and mechanically, by controlling the feed speed of the slurry of the article to be treated to the pulverizer to be within a specified range. SOLUTION: In a wet type agitation pulverizer provided with a medium separation mechanism by a centrifugal separation, when

    PRODUCTION OF BLEACH-ACTIVATING AGENT COMPOSITION

    公开(公告)号:JPH09157697A

    公开(公告)日:1997-06-17

    申请号:JP31991695

    申请日:1995-12-08

    Applicant: KAO CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain a composition excellent in storage stability on the compounding of a detergent and in solubility under bleaching conditions and high in the content of the bleach-activating agent in a high density substantially without decomposing the bleach-activating agent by adding a specific surfactant or a salt, and an acid to the aqueous solution of the bleach-activating agent and subsequently drying the mixture. SOLUTION: The aqueous solution of (A) a bleach-activating agent such as tetraacetylethylenediamine, glucose pentaacetate or tetraacetylglycolurll is mixed with (B1 ) an anionlc surfactant such as an alkylbenzene sulfonate salt or (B2 ) a water-soluble salt such as ammonium sulfate, (C) an acid (e.g. an acid having a pKa of 1-7, concretely succinic acid), and, if necessary, (D) a water-soluble binder such as polyethylene glycol, and subsequently dried by a spray-drying method, etc., to obtain the composition e.g. comprising 40-80wt.% of the component A, 2-30wt.% of the component B1 or B2 , 2-30wt.% of the component C and 0-20wt.% of the component D.

    PRODUCTION OF AMORPHOUS ALUMINOSILICATE

    公开(公告)号:JPH05201720A

    公开(公告)日:1993-08-10

    申请号:JP19396092

    申请日:1992-07-21

    Applicant: KAO CORP

    Abstract: PURPOSE:To produce an amorphous aluminosilicate having high oil absorbing ability and high ion exchange ability with excellent production efficiency at a very high rate of filtration in a solid-liq. separation process in which fine particles are taken out of a slurry after a reaction. CONSTITUTION:An aq. alkali metal aluminate soln. is allowed to react with an aq. alkali metal silicate soln. in the presence of an alkali metal salt and/or an alkaline earth metal salt and the resulting slurry is subjected to solid-liq. separation to obtain the objective amorphous aluminosilicate.

    PRODUCTION OF ANHYDROUS PHENOLSULFONIC ACID SALT

    公开(公告)号:JPH04290862A

    公开(公告)日:1992-10-15

    申请号:JP5674291

    申请日:1991-03-20

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the subject faintly colored compound having high quality with a simple apparatus while suppressing the production of by-product by removing the hydration water of a phenolsulfonic acid salt hydrate in a specific solvent. CONSTITUTION:Hydrated phenolsulfonic acid salt is dehydrated by heating in a solvent having a solubility parameter of 7.5-13 (e.g. xylene), thereby distilling out the hydration water together with the solvent at 70-220 deg.C. The amount of the solvent is 1-10 pts.wt. based on 1 pt.wt. of the phenolsulfonic acid salt. The phenolsulfonic acid salt is monosalt, disalt or their mixture of sulfonic group and hydroxyl group, e.g. phenolsulfonic acid sodium salt. The dehydration is carried out by using a conventional apparatus furnished with a distillation column and a condenser. It is not necessary to use a particular apparatus such as drying machine.

    PRODUCTION OF ACYLOXYBENZENESULFONIC ACID OR ITS SALT

    公开(公告)号:JPH0952875A

    公开(公告)日:1997-02-25

    申请号:JP20355095

    申请日:1995-08-09

    Applicant: KAO CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound good in hue, with little side reaction at low cost in high yield and selectivity by adding specific additive(s) in the initial stage when an acyloxybenxene is to be sulfonated by SO3 using a thin- film type sulfonator. SOLUTION: The objective compound of formula II is obtained by sulfonating an acyloxybenzen of formula I (R is a 1-35C straight-chain or branched alkyl, phenyl, etc.; R is methoxy, ethoxy, etc.; (n) is 0-2) with SO3 using a thin-film type sulfonator. In this case, in the initial stage of the reaction, a total of 5-100mol%, based on the compound of formula I, of additive(s) selected from carboxylic acids (esters) of formula III (R is H or a 1-3C alkyl; R is a 2-35C straight-chain or branched alkyl, alkenyl, etc.) e.g. amides each having a functional group or linkage of formula IV (X is O or S) and carbonic ester compounds each having a functional group of formula V is added to the compound of formula I. It is preferable that the compound of formula I be phenyl laurate and the additive(s) lauric acid, etc.

    AMORPHOUS ALUMINOSILICATE AND ITS PRODUCTION

    公开(公告)号:JPH07187654A

    公开(公告)日:1995-07-25

    申请号:JP32704993

    申请日:1993-12-24

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain an amorphous aluminosilicate improved in oil absorption and ion-exchange capacity by allowing an alkali metal aluminate aq. soln. to react with an alkali metal silicate aq. soln. CONSTITUTION:(A) 10-100wt.% alkali metal aluminate aq. soln. having a molar ratio of M2O (M is an alkali metal)/Al2O3 of 1.0-6.0 and (B) 3-50wt.% alkali metal silicate aq. soln. having the molar ratio of SiO2/M2O of 1.0-4.0 are allowed to react under non-agitation or weak agitation of an agitating element tip speed of 0-1m/s to produce a reaction product. The remaining materials are added to this reaction product to allow to react, and an amorphous aluminosilicate having >=1.0mum and =150ml/100g oil absorption and >=150mgCaCO3 cation-exchange capacity and expressed by the formula (M is an alkali metal, Me is an alkaline earth metal, 0

    CONTINUOUS PRODUCTION OF AMORPHOUS ALUMINOSILICATE

    公开(公告)号:JPH0624734A

    公开(公告)日:1994-02-01

    申请号:JP17818192

    申请日:1992-07-06

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain, through a continuous production process, amorphous aluminosilicate having high oil absorptivity and high ion exchanging ability, also high in filtration rate. CONSTITUTION:A multistage tank-type reactor or tubular reactor is continuously charged with (A) an alkali metal salt and/or alkaline earth metal salt, (B) an alkali metal aluminate and (C) an alkali metal silicate so that the solution to be subjected to reaction have a composition: MxO/Al2O3/SiO2/H2O at molar ratio of (0.5-8):1:(1-7):(50-1500) (M is alkali metal, alkaline earth metal or mixture thereof; x is 1 or 2). In this case, at least one of the above components A, B, and C is continuously injected to plural sites followed by carrying out the reaction to deposit amorphous aluminosilicate, which is then separated from the reaction system, thus continuously affording the objective amorphous aluminosilicate.

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