PRODUCTION OF ALKYLGLYCOSIDE
    11.
    发明专利

    公开(公告)号:JPH0499789A

    公开(公告)日:1992-03-31

    申请号:JP21415890

    申请日:1990-08-13

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the subject compound useful as a detergent in high efficiency by reacting a sugar with a higher alcohol and removing the alcohol from the obtained alkylglycoside containing unreacted higher alcohol using a spontaneous liquid film evaporator and a forced thin film evaporator. CONSTITUTION:An alkylglycoside produced by the direct reaction of preferably a monosaccharide and a higher alcohol and containing unreacted higher alcohol is evaporated with a spontaneous liquid film evaporator until the content of the alcohol in the alkylglycoside is decreased to 30-60wt.%. The obtained crude alkylglycoside containing unreacted higher alcohol is evaporated with a forced thin film evaporator to remove the alcohol and obtain the objective compound containing

    CONTINUOUS PRODUCTION OF PHOSPHORIC MONOESTER

    公开(公告)号:JPH03188089A

    公开(公告)日:1991-08-16

    申请号:JP32889789

    申请日:1989-12-18

    Applicant: KAO CORP

    Abstract: PURPOSE:To readily and continuously obtain the subject compound with a high selectivity in a high yield while making the residence time short by carrying out a reaction between an aliphatic alcohol and polyphosphoric acid in a hydrocarbon-based solvent in a tubular reactor. CONSTITUTION:Using a tubular reactor, 8-36C chain aliphatic alcohol (e.g. octyl alcohol) is reacted with polyphosphoric acid in a hydrocarbon-based solvent (preferably cyclohexane, etc.) to obtain the objective compound. In addition, removal of heat of the reaction is preferably improved in the initial stage of the reaction using a multi-tubular reactor (d) and mixing and heat transfer in the reaction tube are preferably promoted in the initial stage of the reaction by equipping a static mixer in the flow path of the tubular reactor. As the direction of the liquid flow in the tubular reactor, rising flow or lowering flow is preferable.

    Preparation of crystalline aluminosilicate
    18.
    发明专利
    Preparation of crystalline aluminosilicate 失效
    水杨酸铝的制备

    公开(公告)号:JPS5926919A

    公开(公告)日:1984-02-13

    申请号:JP13709882

    申请日:1982-08-06

    Applicant: Kao Corp

    Abstract: PURPOSE: To prepare a crystalline aluminosilicate composed of fine particles, in high yield and productivity, by mixing a concentrated aqueous solution of a silicate with an aqueous solution of an aluminate, gelatinizing and crystallizing the mixture, and at the same time, pulverizing the coarse crystals.
    CONSTITUTION: A concentrated aqueous solution of a water-soluble aluminate having a concentration of 30W70wt% is mixed with an aqueous solution of a water-soluble silicate having a concentration of 30W50wt% at a ratio to obtain the molar ratios (Na
    2 O:Al
    2 O
    3 :SiO
    2 :H
    2 O) of (1.2W2.5):1:(1.5W3.0):(15W35), and the mixture is agitated, gelatinized and crystallized to obtain the crystals of aluminosilicate. In the above process, the system is heated at 60W110°C after the completion of the gelation, and the mixture is recycled, pulverized and crystallized to obtain the slurry of fine aluminate crystals having a particle diameter of 3W5μ, atmost 10μ. The slurry is neutralized with an acid and spray-dried to obtain fine crystals of aluminate having excellent characteristics as the builder for a detergent in high yield.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的:通过将硅酸盐的浓缩水溶液与铝酸盐水溶液混合,将高浓度的水溶液与铝酸钠水溶液混合,使得混合物凝胶化并使其结晶,从而以高产率和高生产率制备由细颗粒组成的结晶硅铝酸盐,同时, 晶体。 组成:将浓度为30-70重量%的水溶性铝酸盐的浓缩水溶液与浓度为30-50重量%的水溶性硅酸盐的水溶液以一定比例混合,以获得摩尔比(Na 2 O :Al 2 O 3 :SiO 2 :H 2 O):(1.2-2.5):1:(1.5-3.0):( 15-35),搅拌混合物,凝胶化并结晶,得到硅铝酸晶体。 在上述过程中,在凝胶化完成后将体系加热至60-110℃,将混合物再循环,粉碎和结晶,得到粒径为3-5μm的细铝酸盐晶体浆料 10亩。 用酸中和该浆料并进行喷雾干燥以获得具有优异特性的细小的铝酸盐晶体,作为洗涤剂的助洗剂以高产率。

    CONTINUOS PRODUCTION OF HIGH-PURITY PHOSPHORIC ACID ESTER SALT

    公开(公告)号:JPH05148276A

    公开(公告)日:1993-06-15

    申请号:JP31445491

    申请日:1991-11-28

    Applicant: KAO CORP

    Abstract: PURPOSE:To obtain the subject compound in good efficiency by adding a small amount of lower alcohol to a specified liquid mixture and a solvent in an extractor for continuous extraction by counter-current contact with the solvent so as to demulsify the emulsion state. CONSTITUTION:When a mixed solution of a phosphoric acid ester salt [e.g. a salt containing a monoalkyl phosphoric acid ester of the formula (R is 8-36C alkyl or alkenyl) as a main component] and a nonionic compound (e.g. organic hydroxyl compound) is continuously brought into counter-current contact with 4-8C aliphatic hydrocarbon or 5-7C saturated alicyclic hydrocarbon (preferably n-pentane) using an extractor to extract the nonionic compound into the solvent and separate the nonionic compound, a 1-4C alcohol (preferably ethanol is added so that the lower alcohol concentration in the mixed solution may become an amount of 0.5-2 pts.wt. based on 1 pts.wt. water and 1-5wt.% based on 1 pts.wt. solvent) is fed from one or more places to carry out the extraction.

Patent Agency Ranking