Chemistry of Acrylamide and Its Effects
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Questions and Answers

What impact does the finished product have on aquatic organisms?

  • The finished product enhances the habitat for aquatic organisms
  • The finished product is only harmful in large quantities
  • The finished product can be harmful to aquatic organisms (correct)
  • The finished product has no impact on aquatic life

    • Which inhibitors are commonly used in acrylamide?

  • Urea and salt (correct)
  • Organic acids and bases
  • Copper and oxygen
  • Heavy metals and anions

    • When is it appropriate to add the thermal catalyst to the reactor?

  • After the addition of TBP
  • Five minutes after drawdown begins (correct)
  • Before the propagation process starts
  • Immediately at reactor start

    • What by-product is generated from the production of post hydro?

    <p>Carbon dioxide</p> Signup and view all the answers

    Smaller granulator screens do not cause high amps to occur.

    <p>False</p> Signup and view all the answers

    Centrifugal pumps are not used to transport aqueous phase solution to the reactors.

    <p>False</p> Signup and view all the answers

    What equipment is used to measure the amount of product transferred to the reactor?

    <p>Flow meter</p> Signup and view all the answers

    Product 934 SH does not require the additive BVE.

    <p>False</p> Signup and view all the answers

    Caustic does not cause temperature to increase when charging a dissolution tank.

    <p>False</p> Signup and view all the answers

    Aqueous solutions can be allowed outside of the dike to be disposed of improperly.

    <p>False</p> Signup and view all the answers

    In which form is acrylamide considered most dangerous?

    <p>Crystallization (solid) form</p> Signup and view all the answers

    Is it acceptable to use homemade tools for clearing equipment clogs?

    <p>No, it is not acceptable</p> Signup and view all the answers

    Which chemical is known to be a carcinogen in polymerization?

    <p>MEHQ</p> Signup and view all the answers

    What is the approved amount of catalyst to have in the plant at any given time?

    <p>48 hours worth</p> Signup and view all the answers

    What is one hazard associated with using nitrogen?

    <p>It is a flammable gas</p> Signup and view all the answers

    What does BVE create more of in the dissolution tank?

    <p>Foam</p> Signup and view all the answers

    What type of charge do anionic products have?

    <p>Negative</p> Signup and view all the answers

    When are dissolution tank samples discarded?

    <p>Once a corresponding reactor sample to QC silo blend is confirmed</p> Signup and view all the answers

    When should you take a gel sample?

    <p>When we fail any kind of QC result and the product becomes non-conformed</p> Signup and view all the answers

    Where is the dryer pressure transmitter located?

    <p>In the bed of the dryer</p> Signup and view all the answers

    What protective equipment is required when handling caustic soda?

    <p>All of the above</p> Signup and view all the answers

    What is the primary purpose of a reactor pressure test?

    <p>Identify potential leaks</p> Signup and view all the answers

    What is a possible consequence of over sparging in a reaction?

    <p>Inadequate catalyst mixing</p> Signup and view all the answers

    What are the steps involved in reaction curve polymerization?

    <p>Initiation, propagation, termination</p> Signup and view all the answers

    What is the purpose of the dryer cyclones?

    <p>To allow the dryer air to vent out through the ducts and stack, while returning the product to the dryers.</p> Signup and view all the answers

    Why is it important to set dissolution tanks to -2 degrees C when polymerizing at 0 degrees C?

    <p>To prevent unexpected reactions</p> Signup and view all the answers

    What is the effect of increasing redox catalyst?

    <p>Will result in a faster kinetic.</p> Signup and view all the answers

    If product is emitting from the stack, what could be the problem?

    <p>The dryer is overfilled beyond its capacity.</p> Signup and view all the answers

    Why are dryer moistures important?

    <p>To assure that all rotors are compatible.</p> Signup and view all the answers

    What two parts make the Kason vibrate?

    <p>Air flow from the dryer cyclones and the center spiral gasket.</p> Signup and view all the answers

    Should empty catalyst bags be discarded?

    <p>Yes, they should be discarded.</p> Signup and view all the answers

    Why are samples taken from dissolution tanks?

    <p>Due to issues and drying upsets.</p> Signup and view all the answers

    What might happen if too much product is in a dryer?

    <p>It could lead to the flame not lighting.</p> Signup and view all the answers

    What is flocculation primarily associated with?

    <p>The removal of sediment from a fluid.</p> Signup and view all the answers

    What could insufficient oil flow lead to in a granulator?

    <p>Granulator high amps.</p> Signup and view all the answers

    What type of reactors are used at snt flopa?

    <p>Tube reactors</p> Signup and view all the answers

    What could cause high moisture levels coming out of dryer 1?

    <p>Operator could be using the wrong drying conditions</p> Signup and view all the answers

    What does a brownish gel color signify?

    <p>Glycol could be leaking through the exchanger</p> Signup and view all the answers

    Why should catalyst not be mixed for too long?

    <p>Mixing too long can cause chemicals to lose potency</p> Signup and view all the answers

    What must be in place inside the granulator to enable a lower flow rate of oil?

    <p>Atomizer</p> Signup and view all the answers

    Is hydrolysis the chemical breakdown of a compound due to reaction with water?

    <p>Yes, hydrolysis is the chemical breakdown due to reaction with water.</p> Signup and view all the answers

    Does over drying products cause filter ratio to fail?

    <p>Yes, it can cause the filter ratio to fail.</p> Signup and view all the answers

    What is the purpose of oiling reactors?

    <p>To aid in draining out the gel.</p> Signup and view all the answers

    Is it true that 4 liters of water is added to the polymerization catalyst pitchers?

    <p>Yes, exactly 4 liters is added consistently.</p> Signup and view all the answers

    Does acetic acid and caustic help in adjusting the pH?

    <p>Yes, both are used to adjust pH.</p> Signup and view all the answers

    What could low pressure in the dryer potentially cause?

    <p>High moistures</p> Signup and view all the answers

    What might a low reading on the pressure transmitter indicate?

    <p>Pressure transmitter could be clogged</p> Signup and view all the answers

    What does VHM represent in a chemical context?

    <p>Very high molecular weight</p> Signup and view all the answers

    Which inhibitors are commonly utilized in acrylic acid production?

    <p>MEHQ and oxygen</p> Signup and view all the answers

    Why is it important to store TBHP in a flammable cabinet?

    <p>It can cause a fire if it comes in contact with a reducer</p> Signup and view all the answers

    Study Notes

    True/False Questions

    • Smaller granulator screens can cause high amps to occur. (True/False)
    • Centrifugal is the type of pump we use to transport aqueous phase solution to the reactors. (True/False)
    • Product 934 SH requires the additive BVE. (True/False)
    • Caustic causes temperature to increase when charging a dissolution tank. (True/False)
    • Aqueous solution should never be allowed outside of the dike so it can be contained and disposed of properly. (True/False)
    • The granulator hopper measure weight by the use of a flow meter. (True/False)
    • Hypo is used as a chain-transfer agent but has a reducer properties. (True/False)
    • The purpose of the Kason is to help transport powder through piping. (True/False)
    • Diffusion is the type of drying done in dryer 1. (True/False)
    • Evaporative is the type of drying done in dryer 2. (True/False)
    • Only powders shift supervisors are authorized to work in solenoid control panels. (True/False)

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    Description

    Explore the critical aspects of acrylamide production, including its impact on aquatic organisms, common inhibitors, and the appropriate use of catalysts. This quiz covers safety concerns, by-products, and operational guidelines in chemical processing.

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