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    • 3. 发明授权
    • Process for preparing overbased magnesium sulfonates
    • 制备高碱性磺酸镁的方法
    • US4347147A
    • 1982-08-31
    • US213323
    • 1980-12-05
    • Ronald J. AllainDodd W. Fong
    • Ronald J. AllainDodd W. Fong
    • C10M159/24C10M169/00C10M1/40
    • C07C309/00C10M159/24
    • A method of preparing superbased magnesium sulfonates by dispersing MgO in the preformed low viscosity overbased magnesium sulfonates. The low viscosity overbased magnesium sulfonates is prepared by sulfonating an alkyl benzene with a material containing SO.sub.3, preferably oleum, and reacting the alkyl benzene sulfonate with magnesium oxide in the presence of a low viscosity diluent, such as No. 2 oil or LOPS (low odor paraffin solvent), together with water, alcohol, and CO.sub.2. The newness of the method lies in the steps of preferably positively utilizing oleum which contains a minor amount of sulfuric acid as a promoter and utilizing also a surfactant couple of a C.sub.12 -C.sub.18 fatty acid such as oleic acid and an ethanol amide such as a lauryl diethanol amide, which may be Witcamide 5138; where a ready made sulfonate is used, such as SA697 (Conoco), H.sub.2 SO.sub.4 is utilized. In certain instances the amide may be omitted with satisfactory results occurring by using the acid alone.Of particular interest is the preparation of a concentrated magnesium sulfonate wherein the water and alcohol are removed by distillation and a diluent such as LOPS or No. 2 oil is added to produce a slurry.An important feature of this process lies in the reduction in size of the magnesium oxide particles. CO.sub.2 is preferentially bubbled through the mixture after introduction of the magnesium oxide and at a temperature range of 30.degree.-80.degree. C. with stirring. A typical zone of particle size is 40-50% of about 200 A and 50-60% of 0.1-1.0 microns. This is quite advantageous where an emulsion is formulated and the percentage of magnesium is in the area of 14-23% and preferably 20% or over.
    • 通过将MgO分散在预制的低粘度高碱性磺酸镁中制备高碱性磺酸镁的方法。 低粘度高碱性磺酸镁通过用含有SO 3,优选发烟硫酸的材料磺化烷基苯,并在低粘度稀释剂如2号油或LOPS(低)下使烷基苯磺酸盐与氧化镁反应制备 气味石蜡溶剂),以及水,酒精和二氧化碳。 该方法的新颖性在于优选积极利用含有少量硫酸作为助催化剂的发烟硫酸的步骤,还利用C 12 -C 18脂肪酸如油酸和乙醇酰胺的表面活性剂对,例如月桂基 二乙醇酰胺,其可以是Witcamide 5138; 其中使用现成的磺酸盐,例如SA697(Conoco),使用H 2 SO 4。 在某些情况下,可以省略酰胺,并通过单独使用酸而发生令人满意的结果。 特别令人感兴趣的是制备浓缩的磺酸镁,其中通过蒸馏除去水和醇,并加入稀释剂如LOPS或NO 2油以产生浆料。 该方法的一个重要特征在于氧化镁颗粒的尺寸减小。 在引入氧化镁后,在搅拌下,在30〜80℃的温度范围内,CO 2优先鼓泡通过混合物。 典型的粒度区域是约200A的40-50%和0.1-1.0微米的50-60%。 当配制乳液并且镁的百分比在14-23%,优选20%或更高的范围内时,这是非常有利的。
    • 4. 发明授权
    • Process for preparing overbased magnesium sulfonates
    • 制备高碱性磺酸镁的方法
    • US4306983A
    • 1981-12-22
    • US184156
    • 1980-09-04
    • Ronald J. AllainDodd W. Fong
    • Ronald J. AllainDodd W. Fong
    • C10M159/24C10M169/00C10M1/40
    • C07C309/00C10M159/24
    • A method of preparing overbased or superbased magnesium sulfonates by sulfonating an alkyl benzene with a material containing SO.sub.3, preferably oleum, and reacting the alkyl benzene sulfonate with magnesium oxide in the presence of a low viscosity diluent, such as No. 2 oil or LOPS (low odor paraffin solvent), together with water, alcohol, and CO.sub.2. The newness of the method lies in the steps of preferably positively utilizing oleum which contains a minor amount of sulfuric acid as a promoter and utilizing also a surfactant couple of a C.sub.12 -C.sub.18 fatty acid such as oleic acid and an ethanol amide such as a lauryl diethanol amide, which may be Witcamide 5138; where a ready made sulfonate is used, such as SA697 (Conoco), H.sub.2 SO.sub.4 is utilized. In certain instances the amide may be omitted with satisfactory results occurring by using the acid alone.Of particular interest is the preparation of a concentrated magnesium sulfonate wherein the water and alcohol are removed by distillation and a diluent such as LOPS or No. 2 oil is added to produce a slurry.An important feature of this process lies in the reduction in size of the magnesium oxide particles. CO.sub.2 is preferentially bubbled through the mixture after introduction of the magnesium oxide and at a temperature range of 30.degree.-80.degree. C. with stirring.
    • 通过用含有SO 3的材料(优选发烟硫酸)磺化烷基苯,并在低粘度稀释剂(如2号油或LOPS)存在下使烷基苯磺酸盐与氧化镁反应来制备高碱性或高碱性磺酸镁的方法 低气味石蜡溶剂),以及水,酒精和二氧化碳。 该方法的新颖性在于优选积极利用含有少量硫酸作为助催化剂的发烟硫酸的步骤,还利用C 12 -C 18脂肪酸如油酸和乙醇酰胺的表面活性剂对,例如月桂基 二乙醇酰胺,其可以是Witcamide 5138; 其中使用现成的磺酸盐,例如SA697(Conoco),使用H 2 SO 4。 在某些情况下,可以省略酰胺,并通过单独使用酸而发生令人满意的结果。 特别令人感兴趣的是制备浓缩的磺酸镁,其中通过蒸馏除去水和醇,并加入稀释剂如LOPS或NO 2油以产生浆料。 该方法的一个重要特征在于氧化镁颗粒的尺寸减小。 在引入氧化镁后,在搅拌下,在30〜80℃的温度范围内,CO 2优先鼓泡通过混合物。