Chlor-alkali chemical industry technology exchange post ---- brine

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This post was last edited by sunjl1981 on 2013-1-6 20:09. Discussion thread on chlor-alkali chemical technology ---- Brine 1: What is the impact of high alkalinity in brine on ion exchange membranes? 2 Which manufacturers are currently using KAI membranes for primary brine filtration? 3 Which is better for primary brine pipelines: lining with PO or rubber? 4 In the process of treating sulfate ions in primary brine, what is the most ideal location for this treatment? 5 For primary brine, light brine, coarse brine, and refined brine, what material is suitable? 6. Free chlorine level in primary brine; 7. High TOC content in primary brine – how to deal with it? 8 Why is Mg2+ removed first and then Ca2+ from brine? 9 The refinement of brine: Brine with normal parameters is continuously desaturated; the salt recovered from membrane evaporation and centrifugation. 11 The process of treating brine using ceramic membranes. 12 If the iron ion content in brine is above the standard, what is the best way to deal with it? 13 Refining of brine once 14 Question: Which model of pressure pump for brine is more durable? 15 I would like to ask everyone about the concentration of primary brine. 16 What are the amounts of excess NaOH and Na2CO3 in primary brine? 17 The material used for stirring primary brine. 18 The application of CN membranes in the purification of primary brine. 19 How to deal with cyanide ions present in primary brine? 20 Control parameters for primary brine and secondary brine. 21 What are the reasons for the peeling of the coating on the filter plates of Gore filters used in primary brine? 22 Treatment of brine sludge in primary brine 23 Is anti-corrosion necessary for the primary brine system? 24 We are about to start the car. May I ask, what precautions should those with experience take when starting the car with saltwater? 25 DCS control of primary brine 26 What are the hazards of excessive chlorates and sulfate levels in the filtered brine supplied as primary brine? 27 Corrosion of pipes in the primary brine siphon filter 28 Ba2+ in primary brine 29 What are the problems caused by high excess alkali in primary brine? 30 Discussion on the CN process for primary brine 31 Amount of sodium hypochlorite added to primary brine 32 Regarding the primary brine pretreater 33 Can heat exchange with chlorine gas ensure the proper temperature of the brine in the resin tower? 34 How can the pressure pump for primary brine operate with a low failure rate? 35 Is it necessary to design the salt water pump used for filtering primary brine as a variable-frequency pump? 36 What are experts’ opinions on the use of PE materials in primary brine? 37 Could someone advise me on the material selection for the pipes from the dechlorination tower to the primary brine section? 38 I need information on the process related to primary brine; diagrams would be ideal! 39 The reaction tank often experiences backmixing after the use of primary brine. 40 The primary brine processing step. 41 How does the ceramic membrane primary brine purification process remove ammonium nitrogen? 42 What is the purpose of the intermediate tank for primary brine? 43 In the KAI membrane process, no pre-treater is needed, and the primary brine meets the required standards; let’s discuss this. 44 Primary brine heat exchanger. 45 Can low-pressure steam be used to heat primary brine instead of a titanium plate heat exchanger? 46 Request for assistance regarding brine quality issues. 47 Advanced processes for primary brine. 48 Primary brine tanks, filtered brine tanks, and recycled brine tanks. What are the differences in the requirements for calcium and magnesium? Thank you. 49: Issues with the release valve in the primary brine air flotation process. 50: Operations related to primary brine. 51: Issues regarding the amount of refining agents added to primary brine (seeking expert advice). 52: What is the red precipitate present in primary brine? 53 The best method for removing amine ions from primary brine and its associated hazards 54 Primary brine processing 55 Purification of primary brine 56 Selection of methods for purifying primary brine 57 Issues related to automatic control of the alkalinity level in primary brine 58 Addition of additives to primary brine 59 Problem of re-clouding in the clarification tanks for primary brine 60 Primary brine 61 Pre-treatment units in the purification of primary brine 62 Material balance for primary brine 63 Issues related to the reaction tanks used for primary brine 64 Pumps used for primary brine 65 Material selection for primary brine pipelines 66 Amount of chemicals used in the purification of primary brine 67 What is T.O.C. of primary brine? # ， ， &