【Daily Question】Chemical Engineering Principles 420: Mixed Cation and Anion Resins (September 2)
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This post was last edited by “Back to Cambridge” on September 28, 2016, at 09:27. Starting today, the Chemical Engineering Theory section is launching the “Question of the Day” activity, aimed at helping everyone reinforce their basic knowledge of chemical engineering. Subsequently, series such as “Fundamentals of Chemical Engineering”, “Mass Transfer and Separation”, “Chemical Thermodynamics”, and “Chemical Process Technology” will also be introduced. We hope for your active participation! Wishing you all a Merry Christmas~~ For replies to the “Question of the Day” activity, answers can be viewed directly; however, the thread will be closed after one day! ! To encourage continued participation from everyone this year! You get 3 wealth rewards just for participating, and an additional 4 wealth points if you answer correctly~~~ Short answer question: How can yin and yang resins be separated when they are mixed together? Answer: They can be separated by taking advantage of the different densities of cationic and anionic resins, using a gravity-driven separation method. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a bottom-up water flow separation method. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they tend to separate more easily from the cation resins.
1) Inside the container, water enters from the bottom while it exits from the top; a bottom flow rate is utilized, and separation is achieved through the density difference between anion and cation resins. (2) Use a 10% NaOH solution. The anion resin mixed with cation resin is poured into a tank and stirred; once it settles, the anion and cation resins separate naturally. A small amount of resin can be processed using this method, but it is generally not used for large quantities of resin in production, mainly due to considerations of personal safety. (3) Separate using brine with a concentration of 25% or higher. Use two or more large tanks, fill them with 1/2 distilled water, add NaCl to achieve a concentration of over 25%, then pour in the resin and stir. After it settles, the cationic resin at the top is removed using a net and placed in bags, while the anionic resin sinks to the bottom.
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a bottom-up water flow separation method. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form.
Answer: They can be separated by taking advantage of the different densities of cationic and anionic resins, using a gravity-driven separation method. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a method of separation through water flow from top to bottom. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a method of separation through water flow from top to bottom. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a method of separation through water flow from top to bottom. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.
They can be separated by taking advantage of the different densities of cationic and anionic resins, using a bottom-up water flow separation method. Another method is to soak the mixed resin in saturated salt water or a solution of about 16% NaOH; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.
Answer: They can be separated by taking advantage of the different densities of cationic and anionic resins, using a bottom-up water flow separation method. Another method is to soak the mixed resin in saturated salt water or a 16% NaOH solution; in this case, the anionic resin will float, while the cationic resin will not. If the density difference between the two resins is small, the resins can first be transformed and then separated, as their densities change depending on their form. For example, the density of OH-type anion resins is lower than that of CL-type resins; once the anion resins are converted to the OH type, they become easier to separate from the cation resins.