Magnetic cellulose-derivative structures

Patent · Tue Sep 16 00:00:00 EDT 1986

OSTI ID:865987

Walsh, Myles A ^[1]; Morris, Robert S ^[2]

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1. Falmouth, MA
2. Fairhaven, MA

Structures to serve as selective magnetic sorbents are formed by dissolving a cellulose derivative such as cellulose triacetate in a solvent containing magnetic particles. The resulting solution is sprayed as a fine mist into a chamber containing a liquid coagulant such as n-hexane in which the cellulose derivative is insoluble but in which the coagulant is soluble or miscible. On contact with the coagulant, the mist forms free-flowing porous magnetic microspheric structures. These structures act as containers for the ion-selective or organic-selective sorption agent of choice. Some sorbtion agents can be incorporated during the manufacture of the structure.

• Research Organization: Cape Cod Research Inc
• DOE Contract Number: AC02-83ER80030
• Assignee: Cape Cod Research, Inc. (Buzzards Bay, MA)
• Patent Number(s): US 4612247
• Application Number: 06/624,956
• OSTI ID: 865987
• Country of Publication: United States
• Language: English

Related Subjects

/428/210/427/435/
agent
agents
cellulose
cellulose triacetate
cellulose-derivative
chamber
chamber containing
choice
coagulant
contact
containers
containing
containing magnetic
derivative
dissolving
fine
formed
forms
free-flowing
incorporated
insoluble
ion-selective
liquid
magnetic
magnetic particle
magnetic particles
manufacture
microspheric
miscible
mist
n-hexane
organic-selective
particles
porous
porous magnetic
resulting
resulting solution
selective
serve
soluble
solution
solvent
solvent containing
sorbents
sorbtion
sorption
sprayed
structure
structures
triacetate