Method for handling solids capable of deflagration

Patent metadata

Field	Value
Publication number	US-9731265-B2
Application number	US-201414773824-A
Country	US
Kind code	B2
Filing date	Mar 7, 2014
Priority date	Mar 12, 2013
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

Method of processing and handling solids and mixtures capable of deflagration, in particular of processing materials capable of deflagration in the chemical and pharmaceutical industry, wherein the processing and handling is carried out in an environment under a reduced pressure of ≦500 mbara and the processing and/or handling comprises one or more process steps selected from the group consisting of filtration, milling, sieving, mixing, homogenization, granulation, compacting, packaging, drying, storage and transport in a transport container and other steps in apparatuses having mechanical internals.

First claim

The invention claimed is:

1. Method of processing and/or handling solids and mixtures capable of deflagration, wherein the processing and/or handling is carried out in an environment under a reduced pressure of ≦500 mbara and the processing and/or handling comprises one or more process step selected from the group consisting of filtration, milling, sieving, mixing, homogenization, granulation, compacting, packaging, drying, storage and transport in a transport container and other steps in apparatuses having mechanical internals.

2. Method according to claim 1 , wherein the process step is transport in transport screws or by means of star feeders.

3. Method according to claim 1 , wherein the process step is carried out in a ploughshare mixer, screw mixer or another mixer having mechanical mixing and/or chopping tools.

4. Method according to claim 1 , wherein the process step is carried out in a flat-bed filter, an oscillating sieve, a rotational sieve and/or another filtration or sieving device having mechanical tools.

5. Method according to claim 1 , wherein the process step is carried out in a roller crusher, spiked roller crusher or toothed roller crusher mill or another comminution apparatus.

6. Method according to claim 1 , wherein the process step is carried out in a paddle dryer, plate dryer or fluidized-bed dryer.

7. Method according to claim 1 , wherein storage or intermediate buffering is carried out in containers without mechanical tools.

8. Method according to claim 1 , wherein transport is carried out in a transport container.

Assignees

• Bayer Ag

Inventors

• Morhenn Heinrich
• Salg Steffen

Classifications

• C07C311/48

  having nitrogen atoms of sulfonamide groups further bound to another hetero atom · CPC title

• F42D5/04

  Rendering explosive charges harmless, e.g. destroying ammunition ({F42B39/14 and F42B39/20 take precedence } ; extracting primers, dismantling ammunition F42B33/04, F42B33/06 {; chemical deactivating of explosives C06B21/0091}); Rendering detonation of explosive charges harmless · CPC title

• C07C245/04

  with nitrogen atoms of azo groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings · CPC title

• B01J19/002 Primary

  Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions · CPC title

• B01J2219/00263

  Preventing explosion of the chemical mixture · CPC title