Reaction equation
O.[O:2]=[CH:3][C@@H:4]([C@H:6]([C@@H:8]([C@@H:10]([CH2:12][OH:13])[OH:11])[OH:9])[OH:7])[OH:5].[C:14]([O-:26])(=[O:25])[CH2:15][C:16]([CH2:21][C:22]([O-:24])=[O:23])([C:18]([O-:20])=[O:19])[OH:17].[NH4+:27].[NH4+].[NH4+]>>[C:14]([O-:26])(=[O:25])[CH2:15][C:16]([CH2:21][C:22]([O-:24])=[O:23])([C:18]([O-:20])=[O:19])[OH:17].[NH4+:27].[NH4+:27].[NH4+:27].[O:2]=[CH:3][C@@H:4]([C@H:6]([C@@H:8]([C@@H:10]([CH2:12][OH:13])[OH:11])[OH:9])[OH:7])[OH:5]Participants
Procedure
Powdered dextrose monohydrate (1200 lbs) and powdered anhydrous citric acid (200 lbs) were combined in a 2000-gallon mixing tank that contained 1104 gallons of soft water. To this mixture were added 42.3 gallons of 19% aqueous ammonia under agitation, and agitation was continued for approximately 30 minutes to achieve complete dissolution of solids. To the resulting solution were added 6 lbs of SILQUEST A-1101 silane to produce a pH ˜8 solution (using pH paper), which solution contained approximately 13.4% dissolved dextrose monohydrate and dissolved ammonium citrate solids (as a percentage of total weight of solution); a 2-g sample of this solution, upon thermal curing at 400° F. for 30 minutes, would yield 8% solids (the weight loss being attributed to dehydration during thermoset binder formation). The solution was stirred for several minutes before being transferred to a binder hold tank from which it was used in the manufacture of glass fiber insulation, specifically, in the formation of a product called “R30 residential blanket.”
Sources & evidence
- ORD record
- ord-1a33afc82c20403b80c88f5ea4efcf37
- Source dataset
- uspto-grants-2010_08
- Patent number
- US07772347B2
Linked notes
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