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US 11,629,100 B2Granted
Methods and apparatus for conducting heat exchanger based reactions
AssigneeMelior Innovations, Inc.
InventorsRichard Landtiser, Wen Liao, Connor Kilgallen, Douglas Dukes, Isabel Burlingham
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Abstract
Methods, apparatus and systems using heat exchanger reactors to form polymer derived ceramic materials, including methods for making polysilocarb (SiOC) precursors.
Claims16
A method comprising:
- providing a polysilocarb material and an organic crosslinking agent;
- combining the polysilocarb material and the organic crosslinking agent in a heat exchanger to initiate a reaction between the polysilocarb material and the organic crosslinking agent;
- and
- forming a polymer derived ceramic precursor.
1 more element
A method comprising:
- preheating n-octylhexamethylcyclotetrasiloxane in a holding tank to a temperature of about 40° C.;
- preheating symtetramethyldisiloxane in a separate holding tank to a temperature of about 40° C.;
- mixing the n-octylhexamethylcyclotetrasiloxane and the symtetramethyldisiloxane in an n-octylhexam ethylcyclotetrasiloxane:
- symtetramethyldisiloxane ratio of 20:1 with sulfuric acid;
- pumping the n-octylhexamethylcycl otetrasiloxane, symtetramethyldisiloxane, and sulfuric acid mixture into a heat exchanger;
- heating the n-octylhexamethylcyclotetrasiloxane, symtetramethyldisiloxane, and sulfuric acid mixture up to about 80° C. in the heat exchanger to form a reaction product, wherein the reaction product is a polymer derived ceramic precursor comprising cyclosiloxanes and linear polymers.
3 more elements
Dependencies are inferred from the claim text.