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  1. orion1

    Without ts2 on the Rheo test

    Dear All, After mixing some rubber batches with isoprene elastomere formulation there missing ts2 on the Rheo testing? After remmiling there are ts2 but ts1 is much lower. What is the main cause that Ts2 is missing? Thanks in advance, Orion1
  2. orion1

    Pipes cleaning SS304L after installation

    Dear all, Pipelines SS304L will be installed in our plant (classical welding not orbital) for transportation of liquid raw materials ( mineral oils, silicon oils.. ) . So how it should be cleanend after installation because it must be completely clean an dry? Do we need cleaning with...
  3. orion1

    Rubber,mixing-hardnes?

    Hello, We have problem with rubber hardness it is sometimes higher and sometimes lower with same raw materials, so could somebody tell me how can we encrease hardness during mixing step in our production. Does the odrder of adding raw matterials has some infulance of the hardness or temperature...
  4. orion1

    Rubber hardness-mixing?

    Hello, We have problem with rubber hardness it is sometimes higher and sometimes lower with same raw materials, so could somebody tell me how can we encrease hardness during mixing step in our production. Does the odrder of adding raw matterials has some infulance of the hardness or temperature...
  5. orion1

    Liquid-liquid coalescers

    We are small producers of biodiesel and we want to increase our production capacity to 20000 tons per year. One of the problems is slow separation of methylester and glycerin phase. We have horizontal gravity separators .Does anybody know what kind of coalescing mediums are being used for the...
  6. orion1

    How to size reflux condenser?

    Hi ,I want to size vertical condenser for methanol vapours above the batch reactor of 2 m3 volume. Reaction time is 1 hour, temperature is 50 C, and the pressure is 1 bar. Problem for me is to determine the quantity of methanol that evaporates in 1 hour. Thanks. Orion1.
  7. orion1

    Isopropyl amine , materials and seals

    Would anyone know what materials for equipment and seals I can use for isopropyl amine at 35 deg C ? Thanks ?
  8. orion1

    Air leakage flow in air pipeline

    I want to calculate air leakage out of the pressuresed air pipeline through the hole . How can I calculate air flow as a function of pressure in the pipe and as the function of the diametar of the hole ? For example: we have hole diametar=6 mm and pressure= 6 bar? It is the ambient...
  9. orion1

    "ION SCALE BUSTER" -experience -descaling &anticorrosion

    Does anybody has experience with the application of the "ION SCALE BUSTER" in the cooling towers recilculation water systems and heating circulation water systems .It is the device for decreasing of scaling in the system and for corrosion protection. Thank you. ORION 1
  10. orion1

    70 % NaOH storage material

    Dear colleagues, Does anybody know's what material I can use for storage of 70 % solution of NaOH at room temperature ? Thank you. Regards , Chemical Engineer Kukoljac Milos.

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