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    Re: Room Temperature Biodiesel process

    I'll mention , Portland Cement is about 60% calcium oxide , made from limestone . Methoxide made with calcium oxide has some of the calcium hydroxide dissolved in the mix . So calcium soap is...
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    Re: Room Temperature Biodiesel process

    I took organic chemistry in college for two semesters . If I recall correctly the professor said , generally for a ten degree celcius temperature increase the reaction rate is twice as fast . There...
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    Re: Indonesia goes to B50 next year

    In United States politics today is proposed "The Green New Deal' , by liberals . There is talk of zero carbon emissions and stopping fossil fuel . It will not happen . It's pre-election propaganda ,...
  4. Re: Difference between Biodiesel & Methylated seed oil

    There are at least 2 ways to make methylated seed oil . One is transesterification of vegetable oil with methanol using caustic as a catalyst . Another way is to make free fatty acids from vegetable...
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    Re: Filtering post dry wash

    JimV8; I make small amounts of biodiesel . I dry washed some of it with magnesium silicate . Maybe that's another issue . After treating the product biodiesel with magnesium silicate it's allowed...
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    Re: Commercial biodiesel

    In the United States I believe commercial diesel fuel contained 5% biodiesel . A problem with biodiesel and even diesel can be low temperature . Biodiesel is usually a mixture of fatty acid methyl...
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    Re: Best RV Furnaces for Using Biodiesel

    I can answer a part of the question . When I burned kerosene it produces soot , usually . But when I burned kerosene in an old hand held blow torch , no soot was produced . I don't know why , but...
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    Re: Best RV Furnaces for Using Biodiesel

    For cool weather use of biodiesel there is fractional crystallization . The temperature is lowered some as solids formed they are separated from the liquid . In this way a lower temperature...
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    Re: COVID-19 hurting oil feedstocks?

    Without doing much research , I've read in the USA gasoline was down to one USA dollar per gallon . The Russians and Saudi Arabians had a recent price war on petroleum , selling for five USA dollars...
  10. Re: Has the Infopop Biodiesel Forum ceased to operate?

    INFOPOP is down , so is Biodiesel Forum Ireland . One of the latest unanswered question on Biodiesel Forum Ireland was doing pyrolysis of plastics and or used vegetable oil to obtain useful...
  11. Re: Has the Infopop Biodiesel Forum ceased to operate?

    I am still here . I made biodiesel from acorns 3/5/2011 . I used a solvent extraction method to obtain the vegetable oil . I don't have the numbers in front of me but I might have got 5% oil from...
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    Re: Full volume of a 20L cubie?

    3DB I heated a round bottom boiling flask in a pan of hot vegetable oil. During the experiment the oil overflowed on the hot heating element. Vegetable oil expands in volume as it gets hotter. ...
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    Re: Using the tote?

    I didn't express what I meant to write simply. It's likely that with elevated temperature the plastic in a tote would be more vulnerable to chemical attack. I made methyl salicylate once, putting...
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    Re: Using the tote?

    I made biodiesel from new corn oil , potassium hydroxide , calcium oxide and methanol in a 1 liter glass bottle at room temperature. It's not all that slow. A problem was keeping the methoxide...
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    Re: Can I reprocess if failed 27/3 test?

    Under reacted biodiesel would have mono and di glycerides in it. Not titrating may cause soap excessive due to possible high titrating oil. I would experiment with 1/2-1 litre product in washing to...
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    Re: My first wash. AARGGHH

    I was interrupted while typing a reply. To continue, I made potassium or sodium soap from sodium or potassium hydroxide, on purpose. So I made normal soap. I put maybe 1/4 gram of the known...
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    Re: My first wash. AARGGHH

    Acetic acid is a stronger acid than free fatty acids. The sodium or potassium salt of free fatty acids (soaps) switch the sodium or potassium to acetic acid giving sodium acetate salt and the free...
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    Re: My first wash. AARGGHH

    With my purified biodiesel distilled water poured right through it to form two layers (phases) quickly. So there maybe another issue. If soap content is an issue sodium chloride, table salt, might...
  19. Re: Practicalities of measuring liquids on a larger scale

    Vegetable oil expands when it is heated. I had a hot vegetable oil bath overflow due to expansion of the hot oil. I don't know how to calculate that mathmatically. It might be measured...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    Dr Mark Are you still drying your methoxide solution prior to the transesterification reaction? Maybe drying with cement? Le Chatlier's principle would indicate one advantage to that in the...
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    Re: The chemistry of the glycerol (and soap) phase

    smithy: The equilibrium Dr Mark refers to is calculated mathmatically by multiplying the concentration of the products of a reaction divided by the concentration of the reactants of a reaction. This...
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    Re: The chemistry of the glycerol (and soap) phase

    Tony from West Oz; The molecular mass is calculated by adding the atomic mass of the elements present in the molecule. Hydrogen 1.00794 oxygen 15.9994 carbon 12.011 potassium 39.0983 the units used...
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    Re: The chemistry of the glycerol (and soap) phase

    What information do I get from the graph? It looks like as the methoxide concentration at 25 degrees centigrade increases so does the water. I don't know the units used in the graph, under...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    Dr Mark You asked for my reference on drying alcohol, but I can't find where the question was. My reference is Textbook of Practical Organic Chemistry , Longman (publishers) , by Arthur Vogel , 3rd...
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    Re: Foolproof Room Temperature (FRT) Biodiesel

    I used the regular D.P method with new vegetable oil , potassium hydroxide , strong mixing , new dryish methanol to react at room temperature. I mixed it for maybe six hours with strong mixing. ...
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