PRODUCTION OF ALKYLGLYCOSIDE
    21.
    发明专利

    公开(公告)号:JPH04224598A

    公开(公告)日:1992-08-13

    申请号:JP40660990

    申请日:1990-12-26

    Applicant: KAO CORP

    Abstract: PURPOSE:To improve productivity by producing a high-quality alkylglycoside excellent in hue and recycling separated unreacted sugar for the reaction. CONSTITUTION:In production of an alkylglycoside using a sugar and a higher alcohol, the sugar is reacted with the higher alcohol using an acid catalyst and unreacted solid sugar is subsequently separated from a reaction mixture containing the unreacted solid sugar. The resultant clean reaction solution is further subjected to an aging reaction using a thin membrane reactor, etc., thus giving the objective alkylglycoside containing

    PRODUCTION OF SULFONATE
    22.
    发明专利

    公开(公告)号:JPH0912531A

    公开(公告)日:1997-01-14

    申请号:JP16862095

    申请日:1995-07-04

    Applicant: KAO CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain a sulfonate compound free from impurities and odorous components and useful as a precursor of an organic peracid for a domestic bleaching agent such as mildew-removing agent, bleaching agent for kitchen and bleaching agent for clothes on an industrial scale in high efficiency. SOLUTION: The objective sulfonate compound of formula I (R is H, a 1-10C alkyl, etc.; R is a 1-8C alkylene, a phenylene, etc.; R is a 1-8C alkylene, etc.; R is a 1-5C alkylene; A is a 2-4C alkylene, etc.; M is an alkali metal atom, etc.; P is 0 or 1; n is an average addition molar number of alkylene oxide groups and is >0 and -SO3 M in the presence of an inert organic solvent capable of forming separated layers with water, mixing the obtained reaction product with water, separating the mixture into layers, recovering the aqueous layer and drying the layer. The drying of the aqueous layer is carried out by adding a decomposed starch having an average DE (defined by formula III) of >=2.

    PRODUCTION OF PHOSPHORIC MONOESTER
    23.
    发明专利

    公开(公告)号:JPH07316170A

    公开(公告)日:1995-12-05

    申请号:JP10937594

    申请日:1994-05-24

    Applicant: KAO CORP

    Abstract: PURPOSE:To readily obtain the high-purity compound with a low content of orthophosphoric acid without converting a reactional product into a high- viscosity gelatinous substance by reacting P2O5 with a phosphorylating agent such as phosphoric acid and an organic hydroxy compound according to a specified method. CONSTITUTION:This method for producing a phosphoric monoester is to initially mix P2O5 with a phosphorylating agent selected from phosphoric acid and polyphosphoric acid, an organic hydroxy compound and water so as to provide water including nH2O when the phosphorylating agent is expressed as P2O5.nH2 O in a molar amount of 0.5-1.5 times based on 1mol phosphorylating agent and the organic hydroxy compound in a molar amount of 0.4-1mol based on 1mol phosphorylating agent, then react the resultant mixture and subsequently add the organic hydroxy compound to the resultant product in a state satisfying conditions of the formula [A is the number of mol of the phosphorylating agent expressed in terms of P2O5 in the step; B is the number of mol of water including nH2O when the phosphorylating agent is expressed as P2O5.nH2O] and carry out the reaction.

    PRODUCTION OF ALKYLGLYCOSIDE
    24.
    发明专利

    公开(公告)号:JPH07109287A

    公开(公告)日:1995-04-25

    申请号:JP25551893

    申请日:1993-10-13

    Applicant: KAO CORP

    Abstract: PURPOSE:To provide a production process for alkylglycoside which has a good color phase, extremely good smell and extremely reduced content of unreacting higher alcohol with high economical advantage. CONSTITUTION:At first, higher alcohols are removed from the alkylglycoside products containing unreacting higher alcohol formed by reaction of a saccharide and higher fatty alcohol until the content is lowered lower than 2.5wt.%. Then, the resultant crude glycoside is allowed to flow in a thin film, which is brought into contact with steam or an inert gas at 100 to 200 deg.C under 25 to 200mmHg pressure, as the superficial linear velocity of the steam or the inert gas is set less than 10m/sec, to give the alkylglycoside of less than 0.5wt.% higher alcohol content.

    PRODUCTION OF PHOSPHORIC ACID MONOESTER SALT

    公开(公告)号:JPH06128277A

    公开(公告)日:1994-05-10

    申请号:JP27719192

    申请日:1992-10-15

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain a high-purity phosphoric acid monoester salt good in hue and odor in high yield. CONSTITUTION:The method for producing a phosphoric acid monoester salt M comprises neutralizing a phosphoric acid ester mixture containing a phosphoric acid monoester of formula I (R is residue, obtained by removing one OH from an organic hydroxy compound and containing 8-36C straight-chain or branched chain hydrocarbon) with a phosphoric acid diester of formula II with a basic compound in the presence of water and then regulated so that 1-100 pts.wt. water may be present based on 1 pt.wt. phosphoric acid ester and then separating the objective phosphoric acid monoester salt on the precipitate side and a phosphoric acid diester salt on the mother liquor side.

    PRODUCTION OF PHOSPHORIC ACID ESTER

    公开(公告)号:JPS62149691A

    公开(公告)日:1987-07-03

    申请号:JP29612885

    申请日:1985-12-25

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the titled compound useful as a detergent, etc., economically on an industrial scale, by phosphorylating an organic hydroxyl compound using a phosphorylation agent such as phosphorus pentoxide at a specific concentration and adding water to the reaction product to effect the hydrolysis of pyrophosphoric acid bond in the system. CONSTITUTION:An organic hydroxyl compound (e.g. dodecyl alcohol) is phosphorylated with one or more kinds is phosphorylation agents such as phosphorus pentoxide, polyphosphoric acid, orthophosphoric acid, etc. The amount of the phosphorylation agent is >=100% in terms of orthophosphoric acid. The reaction product is added with water and the compound of formula I (R is alkyl), etc., having pyrophosphoric acid bond and existing in the system is hydrolyzed under heating at 50-100 deg.C to obtain the objective compound of formula II (R' is alkyl) or III.

    PRODUCTION OF HIGH-PURITY PHOSPHATE ESTER SALT

    公开(公告)号:JPS62135481A

    公开(公告)日:1987-06-18

    申请号:JP27463685

    申请日:1985-12-06

    Applicant: KAO CORP

    Abstract: PURPOSE:A phosphoric acid ester is converted into a phosphate ester salt using a basic compound, and a combination of a specific hydrocarbon, a lower alcohol with water is used as a solvent to advantageously remove nonionic substances in the phosphoric acid ester. CONSTITUTION:After a phosphoric acid ester containing nonionic substances is converted into a phosphate ester salt using a basic compound, (a) at least one selected from 4-8C, straight-chain or branched-chain aliphatic hydrocarbons and 5-7C saturated alicyclic hydrocarbons, (b) a 1-4C lower alcohol, preferably isopropanol and water are used as a solvent to extract nonionic substances in the mixture into the phase (a), thus, phosphate ester salt of high purity which is used in detergent is obtained in a practical scale without emulsification of the phosphate ester salt and loss of phosphoric acid ester. This process according to the present invention can be applied to a mixture of phosphoric acid esters.

    PRODUCTION OF N-LONG-CHAIN ACYLAMINO ACID SALT

    公开(公告)号:JPH06256276A

    公开(公告)日:1994-09-13

    申请号:JP4095793

    申请日:1993-03-02

    Applicant: KAO CORP

    Abstract: PURPOSE:To simply obtain an N-long-chain acylamino acid salt capable of manifesting excellent surface-active and antimicrobial actions at a low cost. CONSTITUTION:This method for producing an N-long-chain acylamino acid salt is characterized by reacting an amino acid salt with a fatty acid halide at 40-60 deg.C maximum reactional temperature in a tubular type reactor having the mixing function in a method for producing the N-long-chain acylamino acid salt having the first step for reacting an amino acid with an alkaline substance and providing the amino acid salt and the second step for reacting the resultant amino acid salt with the fatty acid halide.

    PRODUCTION OF ALKYLGLYCOSIDE
    29.
    发明专利

    公开(公告)号:JPH04295491A

    公开(公告)日:1992-10-20

    申请号:JP5859791

    申请日:1991-03-22

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain an alkylglycoside having good hue by reacting a sugar with a higher alcohol in the presence of an acid catalyst and aging the reaction product in a state of thin film, thereby quickly decreasing the unreacted sugar dissolved in the reaction product. CONSTITUTION:A sugar (preferably =90%. The thin-film reactor to be used in the aging reaction is e.g. a falling-film reactor and a drum evaporator.

    PRODUCTION OF ALKYLGLYCOSIDE
    30.
    发明专利

    公开(公告)号:JPH04295490A

    公开(公告)日:1992-10-20

    申请号:JP5859691

    申请日:1991-03-22

    Applicant: KAO CORP

    Abstract: PURPOSE:To provide a process for the production of an alkylglycoside having minimized thermal history, capable of efficiently evaporating and removing excess unreacted higher alcohol to obtain the higher alcohol having sufficiently high quality to be usable for the production of alkylglycoside and effective for suppressing the facility cost to the lowest possible level. CONSTITUTION:An alkylglycoside containing unreacted higher alcohol is produced as a reaction product by directly reacting a sugar with a higher alcohol or reacting a sugar with a lower alcohol and then with a higher alcohol. The unreacted higher alcohol is removed from the reaction product using a spontaneous liquid film evaporator which does not necessitate mechanical force for the formation of liquid film. An alkylglycoside having unreacted higher alcohol content of

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