Processes for producing a smokable and/or combustible tobacco material
AssigneeR. J. Reynolds Tobacco Company
InventorsFreddie W. Best, Jackie L. White
Life of this patent
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Abstract
Smokable and/or combustible tobacco material is provided by altering the character of tobacco material. Tobacco material is extracted using a solvent to provide a tobacco extract within the solvent and an extracted tobacco material. The extracted tobacco material is separated from at least a portion of the extract and solvent. The extracted tobacco material is subjected to pyrolysis conditions to provide a pyrolyzed material. The pyrolysis conditions can include a temperature of from about 300.degree. C. to about 1250.degree. C. and a non-oxidizing atmosphere. The pyrolyzed material can then be formed into a predetermined shape such as by extrusion, casting and the like.
Claims34
A process for altering the character of tobacco material comprising the steps of:
- (a) extracting a tobacco material using a solvent to provide (i) a tobacco extract within the solvent, and (ii) an extracted tobacco material;
- (b) separating the extracted tobacco material from at least a portion of the extract and solvent;
- and
- (c) subjecting the extracted tobacco material to pyrolysis conditions of a temperature of about 300.degree. C. to about 1250.degree. C. to effect a weight loss of about 35 to about 95 percent to provide a pyrolyzed material.
A process for altering the character of tobacco material comprising the steps of:
- (a) extracting a tobacco material using a solvent to provide (i) a tobacco extract within the solvent, and (ii) an extracted tobacco material;
- (b) separating the extracted tobacco material from at least a portion of the extract and solvent;
- (c) subjecting the extracted tobacco material to pyrolysis conditions of a temperature of about 300.degree. C. to about 1250.degree. C. to effect a weight loss of about 35 to about 95 percent after to provide pyrolyzed tobacco material;
- and
- (d) forming the pyrolyzed tobacco material into a predetermined shape.
A process for altering the character of tobacco material comprising the steps of:
- (a) extracting a tobacco material using a solvent to provide (i) a tobacco extract within the solvent, and (ii) an extracted tobacco material;
- (b) separating extracted tobacco material from at least a portion of the extract and solvent;
- (c) subjecting the extracted tobacco material to pyrolysis conditions of a temperature of from about 300.degree. C. to about 1250.degree. C. to effect a weight loss of about 35 percent to about 95 percent in a non-oxidizing atmosphere to provide a pyrolyzed tobacco material;
- and
- (d) forming the pyrolyzed tobacco material into a predetermined shape.
Dependencies are inferred from the claim text.