Home | Links | Contact Us | More About Intellectual Property | Bookmark

Search patents:

Home

Molecular Biology

Vapor-cleaning-system

Bioconversion of industrial cellulosic pulp materials to protein-enriched product

What I claim is: 1. A process for the formation of proteinaceous material, which consists of: (a) ...

Novel bioconverting microorganisms

OF THE INVENTION This invention relates to two Actinoplanes missouriensis strains which together ...

Mixed microbial fermentation of carbonaceous matter to road de-icer

I claim: 1. A process for production of mixed calcium-magnesium organic acid salts useful for de-...

Supercritical ammonia treatment of lignocellulosic materials

OF THE INVENTION As used throughout the specification, "bioavailability" refers to the relative ...

Apparatus for bioconversion of vegetal raw material

It is therefore an object of the present invention to ensure a uniform heat- and mass-transfer ...

Production of high methane content product by two phase anaerobic digestion

I claim: 1. In a process for production of high methane content product gas by two phase anaerobic ...

Process for the bioconversion of fumarate to L-malate

What is claimed is: 1. A process for preparing L-malate from fumarate comprising incubating under ...

Process for manufacture of alkaline earth acetates

As shown in FIG. 1, the process for Producing alkaline earth acetates employs a biomass feed 10, ...

Toner for electrophotography

We claim: 1. Toner for developing an electrostatic latent image, comprising a binder resin and a ...

Tubercidin preparation

What is claimed is: 1. Tubercidin-containing human red blood cells prepared by: 1. mixing whole ...

Vapor cleaning system

Details

Inventors: Houke, Howard F.; Anderson, Freeman C.;
Assignee: Collins Machinery Corporation (Concord, CA)
Primary Examiner: Bashore; S. Leon
Assistant Examiner: Caroff; Marc L.
Attorney, Agent or Firm: Nelson; Michael D.

A solid substance is cleaned by a vapor cleaning method. In the method, a cleaning vessel which is opened to the atmosphere at its top is used. A hazardous solvent is vaporized at the bottom of the vessel and cooling coils within the vessel condense the vapors as they travel upwardly to the open top. The solid substance to be cleaned is placed in a zone where the vapors are condensing. The invention resides in blanketing the top of the condensing vapors with an inert gas which is less hazardous than the volatile solvent thereby forming a buffer layer between the atmosphere and the solvent. The gas has a density at the conditions existent within the buffer layer which is greater than the density of air at ambient conditions, and has a boiling point below the boiling point of the solvent.

DETAILED DESCRIPTION OF THE INVENTION When references are made to the accompanying drawing, the similar characters of reference represent the same corresponding parts.
The accompanying drawing is a perspective view of a cleaning apparatus constructed in accordance with the present invention with a section removed to display the underlying structure and parts.
While only a preferred embodiment of the invention is illustrated by the drawing it should be understood that various changes or modifications may be made within the intended scope of the claims attached hereto without departing from the spirit of the invention.
Referring now to the drawing, cleaning apparatus 2 is illustrated with its top 4 open to the atmosphere.
The apparatus is arbitrarily divided into three zones.
The lowest zone A is for the collection of the solvent condensate.
The next zone B is the cleaning zone, and the top zone C is the gaseous buffer layer.
Cooling coils 6 are positioned within the cleaning zone B for removing heat, either continuously or intermittently, from this zone.
An inlet 8 and outlet 10 is provided for circulating a coolant through the cooling coils.
An electric heater 12 is positioned at the bottom 14, of the condensate receiving zone A and is controlled by wires 16.
Bottom 14 encloses the bottom of cleaning apparatus 2 so that the cleaning solvent may be contained within the apparatus.
At the top of the cleaning apparatus, two gas spargers 20 are provided to uniformly inject gas along the top of the apparatus at zone C.
This gas forms the gaseous buffer layer between the vapors of cleaning solvent and the atmosphere.
As the cleaning solvent is condensed in the cleaning zone, the condensate drops downwardly and is collected in zone A.
The condensate solvent carries with it the contaminates from the solid substance.
In order to avoid accumulation of contaminants within the cleaning solvent, a bleed stream is withdrawn from zone A through pipe 22 and control valve 24 to purifier 26.
An activating signal is connected to zone A through wire 28, and when the contaminants level reaches a designated level, a signal carried through wires 28 opens valve 24

Related patents

	Microbial degradation of obnoxious organic wastes into innocucous materials We claim: 1. A biologically pure culture of Pseudomonas cepacia var., niagarous selected from the group consisting of ATCC 31945, ATCC 31941, ATCC 31942, ATCC 31940, ATCC...
	Process of the pulping of bleaching of vegetable material A principal object of the present invention is to provide a process for producing pulp which incorporates improved pulping and bleaching steps therein. According to the ...
	Method of preparing galcatooligosaccharide OF THE INVENTION According to the present invention, .beta.-galactosidase having a galactosyl transfer reaction activity is utilized to serve as enzyme to hydrolyze ...
	Process for the two-stage decomposition of hemi-celluloses to xylose What is claimed is: 1. In a process for the two-stage decomposition of a hemi-cellulose of a xylan-containing natural product for the purpose of obtaining xylose wherein ...
	No dig seepage pit cleaner What is claimed is: 1. A seepage pit cleaner comprising a fluid conduit and a cleaning assembly, said entire assembly being insertable into a septic tank having a floor, ...
	Organosolv delignification and saccharification process for lignocellulosic plant materials We claim: 1. In a process for the production of carbohydrate hydrolysates of cellulose from a cellulosic material which can contain lignin by treating the material in a ...
	Tartrate catabolism gene What is claimed is: 1. A method for making an incompetent unicellular microorganism host competent to utilize L-tartrate as a carbon source, said method comprising ...
	Method of encapsulating cells in a tubular extrudate Methods and systems are disclosed for encapsulating viable cells which produce biologically-active factors. The cells are encapsulated within a semipermeable, polymeric ...
	Sulfur-containing antimicrobial ester-amides We claim: 1. A sulfur-containing ester amide having antimicrobial activity and the general structure: ##STR2## where R.sub.1 is a lower alkyl or alkenyl group of 1 to 6 ...
	Continuous anaerobic digestor system OF THE FIGURES FIG. 1 shows the simplest embodiment 10 of the invention, an improved system for anaerobic digestion of organic material to produce methane gas and ...

0.034
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved