申请人:EXXON RESEARCH AND ENGINEERING COMPANY
公开号:EP0121024A1
公开(公告)日:1984-10-10
The problem of sludge formation is avoided in the preparation of high base number calcium sulphonates in good yields by carbonating a mixture of:
a) an oil-soluble sulphonic acid or an alkaline earth metal sulphonate,
b) a hydrocarbon solvent
c) a C1-16 alcohol, preferably methanol,
d) oil, and
e) excess calcium hydroxide,
at a temperature not exceeding 35°C, heat soaking the carbonated mixture, and then separating the heat soaked product into an alcohol/water phase and a solvent/oil phase. The alcohol/water phase is removed before stripping the solvent/oil phase to yield the overbased product.
在制备高碱基磺酸钙的过程中,通过碳化以下物质的混合物可以避免形成淤泥的问题,而且产量很高:
a) 油溶性磺酸或碱土金属磺酸盐、
b) 一种烃类溶剂
c) C1-16 醇,最好是甲醇、
d) 油,以及
e) 过量氢氧化钙、
在不超过 35°C 的温度下,对碳酸化混合物进行热浸泡,然后将热浸泡产品分离成醇/水相和溶剂/油相。在剥离溶剂/油相之前,先除去醇/水相,得到过基产品。