MANUFACTURING OF NITROGEN-CONTAINING MATERIALS
First Claim
1. A nitrogen-containing product produced by the process of:
- (a) combining polymeric material and a chemical reagent in a reaction vessel, wherein the chemical reagent is made by combining a nucleophilic agent and an electrophilic agent;
(b) heating the contents of the said reaction vessel to a temperature of between about 20-250°
C.
0 Assignments
0 Petitions
Accused Products
Abstract
It has been discovered that waste cross-linked polymer materials both synthetic (scrap tire rubber, used polyurethane, and epoxy and phenol resins in discarded printed circuit boards) and natural (wood biomass, keratin, and chitin) can be conveniently depolymerized at slightly elevated temperatures and moderate pressures by the action of a liquid chemical reagent. The proposed inexpensive process results in a substantial to total depolymerization of synthetic polymers and thereby recovers valuable liquid and solid materials. When applied to lignocellulosic biomass, the proposed process, depending on the reaction conditions, either unlocks the lignin-hemicellulose matrix making cellulose more available for fermenting microorganisms or results in carbonization, or coalification of the biomass that may be desirable in terms of sequestering excessive carbon from the Earth'"'"'s biosphere.
-
Citations
48 Claims
-
1. A nitrogen-containing product produced by the process of:
-
(a) combining polymeric material and a chemical reagent in a reaction vessel, wherein the chemical reagent is made by combining a nucleophilic agent and an electrophilic agent; (b) heating the contents of the said reaction vessel to a temperature of between about 20-250°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 47)
-
-
17. (canceled)
-
19. (canceled)
-
21. A process comprising:
-
(a) combining polymeric material and a chemical reagent in a reaction vessel, wherein the chemical reagent is made by combining a nucleophilic agent and an electrophilic agent; (b) heating the contents of the said reaction vessel to a temperature of between about 20-250°
C.
-
-
22-46. -46. (canceled)
-
48-50. -50. (canceled)
Specification