The utility model belongs to the technical field of water washing for catalyst removal in the preparation process of carbon-9 petroleum resin, in particular to a water washing device for removing boron trifluoride catalyst. It consists of a static tank at the bottom of the tower, an alkali-washing tower, a static tank in the tower, a water-washing tower and a static tank at the top of the tower, which are successively arranged from the bottom to the top; a pure water tank is connected with a water-washing tower through a pipeline, and a pure water pump is arranged on the pipeline; a static tank at the top of the tower is connected with a resin polymerization tank through a pipeline, and an intermediate tank of the resin polymerization liquid is connected with a alkali-washing tower through a pipeline, A resin polymerizing liquid pump is provided, and a pipeline is arranged between the static tank at the bottom of the tower and the alkali washing tower, and the pipeline between the static tank at the bottom of the tower and the alkali washing tower is connected with the alkali tank through the alkali pump. The utility model effectively solves the emulsification phenomenon in the existing washing process, reduces the discharge of waste water, reduces the dynamic and static equipment, reduces the remote transmission control and the working labor intensity, realizes the continuous operation, and can reduce the working labor intensity and realize the continuous operation of washing.
【技术实现步骤摘要】
脱除三氟化硼催化剂的水洗装置
本技术属于碳九石油树脂制备过程中催化剂脱除的水洗
,具体涉及一种脱除三氟化硼催化剂的水洗装置。
技术介绍
碳九石油树脂主要是以石油裂解的乙烯副产碳九馏分在催化剂作用下聚合而成,通常是在常压、低温条件下聚合,虽操作难度不大,但在选择催化剂方面要求比较严格,一般选用BF3·乙醚络合、BF3气体以及BF3·苯酚络合催化剂。催化剂脱除主要有石灰-干洗法、醇洗脱除法、氨中和-水洗法、碱中和-水洗法等。石灰-干洗法因产生的固体废弃物难于处理,对环境危害较大,现在已经废弃。醇洗脱除法使用过程中产生的醇难以回收利用,此方法也不常用。相比后两种水洗方法,因碱中和-水洗法产生的废水较少,已被大多数石油树脂厂家采用。碱中和-水洗法一般采用水洗釜进行进行聚合液洗涤,在操作时采用多釜间歇中和-水洗或多釜连续中和-水洗。在洗涤时加入NaOH碱液中和催化剂,容易形成乳化现象,同时也因催化剂在反应体系中很容易被油相所包裹,在水洗釜中通过搅拌很难实现催化剂完全中和,而导致催化剂不能够脱除干净,最终会残留在树脂聚合液中,最终影响树脂的品质(色相、挥发分、稳定性、抗老化性、软化点等)。申请专利号CN201510073365.1介绍了一种减少石油树脂水洗脱除催化剂乳化的方法,采用聚合液与水的比例1:(3-4)进行水洗,产生的废水依然很大。申请专利号CN201520506809.1介绍一种减少石油树脂水洗系统中乳化现象的装置,其专利提到采用中和釜依次通过碱洗-水洗-水洗进行间歇脱除催化剂,中间过程特别第一步碱洗仍不可避免出现乳化现象,而且产生大量废水。申请专利号 ...
【技术保护点】
1.一种脱除三氟化硼催化剂的水洗装置,其特征在于:包括从下到上依次设置的塔底静止罐(12)、碱洗塔(8)、塔中静止罐(6)、水洗塔(4)和塔顶静止罐(3);纯水罐(1)通过管道连接水洗塔(4),纯水罐(1)和水洗塔(4)之间的管道上设有纯水泵(2),塔顶静止罐(3)通过管道连接树脂聚合罐(5),树脂聚合液中间罐(7)通过管道连接碱洗塔(8),树脂聚合液中间罐(7)与碱洗塔(8)之间的管道上设有树脂聚合液泵(11),塔底静止罐(12)和碱洗塔(8)之间设有管道,塔底静止罐(12)和碱洗塔(8)之间的管道上设有碱液循环泵(15),塔底静止罐(12)和碱洗塔(8)之间的管道通过碱液泵(13)与碱液罐(10)连接。
【技术特征摘要】
1.一种脱除三氟化硼催化剂的水洗装置,其特征在于:包括从下到上依次设置的塔底静止罐(12)、碱洗塔(8)、塔中静止罐(6)、水洗塔(4)和塔顶静止罐(3);纯水罐(1)通过管道连接水洗塔(4),纯水罐(1)和水洗塔(4)之间的管道上设有纯水泵(2),塔顶静止罐(3)通过管道连接树脂聚合罐(5),树脂聚合液中间罐(7)通过管道连接碱洗塔(8),树脂聚合液中间罐(7)与碱洗塔(8)之间的管道上设有树脂聚合液泵(11),塔底静止罐(12)和碱洗塔(8)之间设有管道,塔底静止罐(12)和碱洗塔(8)之间的管道上设有碱液循环泵(1...
【专利技术属性】
技术研发人员:魏锋,于星玉,廉燕,赵代利,郭希武,王恩峰,陈晓霞,
申请(专利权)人:山东齐隆化工股份有限公司,
类型:新型
国别省市:山东,37
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。