IMPROVING AGENT FOR FILTERING AND DEHYDRATING PROPERTIES OF WATER SLURRY OF METALLIC HYDROXIDE

    公开(公告)号:JPS5849416A

    公开(公告)日:1983-03-23

    申请号:JP14782681

    申请日:1981-09-21

    Applicant: KAO CORP

    Abstract: PURPOSE:To dehydrate water slurry of water-insoluble metallic hydroxide extremely efficiently and economically by adding a specific anionic surfactnat to said slurry. CONSTITUTION:The alcohol expressed by R-OH (R is an alkyl group or an alkenyl group of 2-24) and maleic acid are esterified in the presence of a catalyst such as alkali to synthesize monoalkyl ester or dialkyl ester. Acid sodium sulfite is added to the monalkyl ester or dialkyl ester and is heated, whereby the anionic surfactent expressed by the formulaIis obtd. Said surfactant is added at about 10-1,000ppm in water slurry of metallic hydroxides. It is equally well to substitute a part of the anionic surfactant with the nonionic surfactant expressed by the formula II by using the alcohol expressed by R'-OH as a starting material, and adding alkylene oxide of 2-24 C thereto in the presence of a catalyst such as alkali.

    MALEIC ACID/(METH)ACRYLIC ACID COPOLYMER

    公开(公告)号:JPS57168906A

    公开(公告)日:1982-10-18

    申请号:JP5535181

    申请日:1981-04-13

    Applicant: KAO CORP

    Abstract: PURPOSE:The titled copolymer having excellent ability to disperse inorganic pigments and an ability to chelate calcium ions, prepared by copolymerizing (meth) acrylic acid with a specified excess molar amount of maleic acid in an aqueous solution maintained at a specified pH. CONSTITUTION:A copolymer satisfying the relationships: r=1.15-2.7, MW= 1,000-8,000 and rXMW>=3,000, wherein r is a maleic acid/(meth)acrylic monomer mol ratio and MW is an average MW, is produced by copolymerizing materials consisting of (meth)acrylic acid and 1.2-1.3mol, per mol of (meth)acrylic acid, of maleic acid in an aqueous solution adjusted at a pH of 3.5-5.0 with an alkali metal hydroxide and, if necessary, neutralizing the resulting copolymer. In prior arts, a copolymer having a MW>=1,000 has not been obtained in case where said mol ratio exceeds 1, but it can be obtained by carrying out the copolymerization in an aqueous solution at an adjusted pH. This copolymer is useful as a calcium ion scavenger, especially a scale-preventing agent.

    Surfactant for polymer emulsion
    83.
    发明专利
    Surfactant for polymer emulsion 失效
    聚合物乳液的表面活性剂

    公开(公告)号:JPS5778936A

    公开(公告)日:1982-05-17

    申请号:JP15485680

    申请日:1980-11-04

    Applicant: Kao Corp

    Inventor: MORIYAMA NOBORU

    Abstract: PURPOSE: To obtain a surfactant having a low frothing effect and excellent polymerization stability as well as excellent mechanical stability by using an anionic surfactant having specific structure as a surfactant for polymer emulsions.
    CONSTITUTION: As a surfactant for polymer emulsions, used in the emulsion polymerization of reactive monomers, e.g., ethylenic unsaturated monomers conjugated diene monomers, etc., an anionic surfactant of the formula Z-O-(RO)
    n -X (where Z is a C
    8 WC
    24 alkyk group, R is a C
    2 WC
    4 alkylene group, X is -SO
    3 M-, PO
    3 M, etc., and n is 2 to 100). The surfactant has a low frothing effect and can manufacture stable emulsions.
    COPYRIGHT: (C)1982,JPO&Japio

    Abstract translation: 目的:通过使用具有特定结构的阴离子表面活性剂作为聚合物乳液的表面活性剂,得到发泡效果低,聚合稳定性优异,机械稳定性优异的表面活性剂。 构成:作为聚合物乳液的表面活性剂,用于反应性单体例如乙烯类不饱和单体共轭二烯单体等的乳液聚合中,具有式ZO-(RO)nX的阴离子表面活性剂(其中Z为C8-C24 烷基,R为C2-C4亚烷基,X为-SO3M-,PO3M等,n为2〜100)。 表面活性剂起泡效果低,可制造稳定的乳液。

    Aqueous slurry of zeolite
    84.
    发明专利
    Aqueous slurry of zeolite 失效
    沸石的水性浆液

    公开(公告)号:JPS5761614A

    公开(公告)日:1982-04-14

    申请号:JP13548380

    申请日:1980-09-29

    Applicant: Kao Corp

    Abstract: PURPOSE: An aqueous slurry of zeolite, obtained by adding a specific amount of a water-soluble cellulosic derivative and a specific amount of a water-soluble alkaline metallic salt or ammonium slat to the zeolite, and stabilized at a high concentration.
    CONSTITUTION: 0.2W3.0wt% water-soluble cellulosic derivative and 0.1W3.0wt% water-soluble alkaline metallic salt or ammonium salt are added to zeolite. The zeolite has a particle diameter of 0.2W10μ, and carboxymethyl cellulose, hydroxyethyl cellulose or methyl cellulose may be cited as the water-soluble cellulosic derivative. As for the water-soluble alkaline metallic salt or ammonium salt, sodium sulfate, potassium sulfate or ammonium sulfate may be preferred.
    COPYRIGHT: (C)1982,JPO&Japio

    Abstract translation: 目的:通过向沸石中加入特定量的水溶性纤维素衍生物和特定量的水溶性碱金属盐或铵盐板,并以高浓度稳定地获得沸石的水性浆料。 构成:将0.2-3.0wt%水溶性纤维素衍生物和0.1-3.0wt%水溶性碱金属盐或铵盐加入到沸石中。 沸石的粒径为0.2-10μm,羧甲基纤维素,羟乙基纤维素或甲基纤维素作为水溶性纤维素衍生物。 对于水溶性碱金属盐或铵盐,可优选硫酸钠,硫酸钾或硫酸铵。

    DISPERSANT FOR AQUEOUS SLURRY OF COAL POWDER

    公开(公告)号:JPS5719024A

    公开(公告)日:1982-02-01

    申请号:JP9193480

    申请日:1980-07-04

    Applicant: KAO CORP

    Abstract: PURPOSE:To permit the transport of coal powder through a pipeline by dispersing the coal powder in water with the aid of a specific structure of an anionic surfactant as a dispersant for the aqueous slurry of coal powder. CONSTITUTION:As a dispersant component for the aqueous slurry of coal powder, having good fluidity, an anionic surfactant of the formula I [where R is a C4-22 aliphatic hydrocarbon group, l and n are each 0 to 150 (but l+n=2-150), m is 2-150 (but l+m+n=5-200), p is 1-3 (valency of pair ion M), and M is a mono- or trivalent cation], prepared by a method in which ethylene oxide and propylen oxide and added in blocks or partly blocked state to an alcohol or hydroxylated aromatic compound, and the addition product is subjected to sulfurization followed by salt-forming reaction, is used. Thus, the pipeline transportation of coal powder is made possible because the use of the dispersant makes the fluidity of aqueous slurry of coal powder better.

    PREVENTION OF SPONTANEOUS COMBUSTION OF HEAPED COAL

    公开(公告)号:JPS56133392A

    公开(公告)日:1981-10-19

    申请号:JP3799980

    申请日:1980-03-25

    Applicant: KAO CORP

    Abstract: PURPOSE:To suppress heat generation by oxidation, etc. and to prevent of spontaneous combustion of coal, by spraying an aqueous emulsion consisting essentially of a water-insoluble polymer, surface active agent, and water retentive agent on heaped coal so that a film having improved wetting properties, slightly causing cracks, is formed on the coal. CONSTITUTION:(A) 50-98wt% Water-insoluble polymer, e.g., vinyl acetate type polymer, etc. is blended with (B) 1-30wt% surface active agnet and (C) 1- 30wt% water retentive agent, e.g., lower alcohol, glycerol, etc. to give an aqueous emulsion consisting of 0.05-10wt% (preferably 0.5-5wt%) three components. A compound shown by the formula I (R1 is 8-18C alkyl, etc.; p is 3-100), and a compound shown by the formula II (R2 is 8-12C alkyl, etc.; q is 3-100) are especially preferable as the component B. In spraying, the heap of the coal and the spray of the emulsion are repeated alternately during piling the coal, so that the emulsion is effectively sprayed in layer state.

    GRANULATING AGENT FOR AQUEOUS SLURRY OF COAL POWDER

    公开(公告)号:JPS56116792A

    公开(公告)日:1981-09-12

    申请号:JP2032680

    申请日:1980-02-20

    Applicant: KAO CORP

    Abstract: PURPOSE:To granulate coal powder in a compacted form in a short time and at the same time remove ash in the coal, by adding an oil as a binder together with a specific cationic or betaine type surfactant to the slurry of coal powder. CONSTITUTION:The aqueous slurry of coal powder is mixed with an oil (A) as a binder and 0.01-5.0wt% (based on coal) cationic surfactant (B) of formula I (where R1 is a C8-C22 alkyl or alkenyl group, R2 is a C1-C22 alkyl, alkenyl, or benzyl group, and X is a halogen), e.g., octyltrimethylammonium chloride, etc., or a betaine type surfactant of formula II (where R3 is a C8-C22 alkyl or alkenyl group). Then, the mixture is stirred by a high-speed blender, etc., for granulation, and then filtered to obtain granulated coal. USE:The granulated coal obtained is used as such or after being mixed with an oil as a fuel.

    GRANULATING AGENT USED IN AQUEOUS SLURRY OF COAL POWDER

    公开(公告)号:JPS5688497A

    公开(公告)日:1981-07-17

    申请号:JP16647779

    申请日:1979-12-21

    Applicant: KAO CORP

    Abstract: PURPOSE:Titled granulating agent which promotes granulation of coal powder in water and facilitates removal of ashes and minerals, comprising a specified anionic surfactant. CONSTITUTION:An anionic surfactant represented by the formula, wherein R is a C4-22 (un)saturated aliphatic group, a C4-18 substituted alkyl-containing alkyl- substituted aromatic hydrocarbon group, 1 and (n) are each 0-150, 1+n is 2-150, (m) is 2-150, 1+m+n is 5-200, (p) is 1-3 and M is a mono-to trivalent cation, is prepared by adding at least two alkylene oxides to an aliphatic alcohol or an aromatic hydroxy compound, so as to form (partial) blocks, and then sulfating the terminal OH groups. To a coal/water slurry, concentration 20-85wt%, is added 0.01-5.0wt% said anionic surfactant as a granulating agent. Then, the coal powder is granulated.

    AQUEOUS DISPERSION STABILIZER OF FINE POWDER

    公开(公告)号:JPS5662537A

    公开(公告)日:1981-05-28

    申请号:JP13818879

    申请日:1979-10-25

    Applicant: KAO CORP

    Abstract: PURPOSE:To present an aqueous dispersion stabilizer which is obtained by converting an ester of sulfuric or phosphoric acid the compound obainable by adding propylene oxide and ethylene oxide to specific active hydrogen compound and which is superior in dispersion effect and does not cause hard caking of precipitate. CONSTITUTION:The compound obtainable by adding propylene oxide then ethylene oxide to the hydroxy compound, such as glycerol, and trimethylol propane, having 3 or more of active hydrogen is sulfated or phosphated. This yields the water-base dispersion stabilizer which is expressed by the formula [I], has superior dispersion effect to fine powder and does not make any hard cake when precipitate. In the formula, A denotes the residual groups after deducting active hydrogen from the compound having x atoms of active hydrogen in one molecule, X is -OSO3M, -OPO3M2 or (=O2PO2M)1/2 and M denotes alkali metal ions or quaternary ammonium ions.

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