Recycling process for boron nitride
OwnerLloyd Chapman, Cressie Holcombeinventors
Life of this patent
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Abstract
A process for recycling boron nitride paint or powder is provided. Boron nitride paint or powder is removed in an acid wash to form a wash solution. A caustic is added to the wash solution to form a neutralized wash solution. The neutralized wash solution is filtered to collect a boron nitride cake. The boron nitride cake is then washed and formed into boron nitride paint or powder.
Claims62
A process for recycling boron nitride paint comprising the steps:
- removing said boron nitride paint in an acid wash to form a wash solution containing suspended boron nitride;
- adding a caustic to said wash solution to form a neutralized wash solution;
- filtering said neutralized wash solution to collect a boron nitride cake;
- washing said boron nitride cake;
- and
- forming a reconstituted boron nitride paint from said boron nitride cake.
A process for recycling boron nitride paint into boron nitride powder comprising the steps of:
- removing said boron nitride paint in an acid wash to form a wash solution;
- adding a caustic to said wash solution to form a neutralized wash solution;
- filtering said neutralized wash solution to collect a boron nitride cake;
- washing said boron nitride cake;
- drying said boron nitride cake;
- and
- milling said boron nitride cake into said boron nitride powder.
A process for recycling boron nitride paint comprising the steps of:
- removing said boron nitride paint from a surface by washing said surface with an acidic solution to form a boron nitride suspension;
- adding a caustic to said boron nitride suspension to yield a neutralized material;
- filtering said neutralized material to form a boron nitride cake;
- and
- washing said boron nitride cake to form reconstituted boron nitride.
A process for forming a material comprising the steps of:
- applying a boron nitride paint to said material;
- washing said boron nitride paint off of said material using an acid wash to form a wash solution;
- adding a caustic to said wash solution to form a neutralized wash solution;
- filtering said neutralized wash solution to collect a boron nitride cake;
- and
- washing said boron nitride cake to form boron nitride.
A process comprising:
- utilizing a boron nitride containing material in a process to form a boron nitride containing product;
- removing boron nitride byproduct from said boron nitride containing product;
- filtering said boron nitride byproduct to form a boron nitride cake;
- washing said boron nitride cake to form a once purified boron nitride cake;
- drying said once purified boron nitride cake to form a dried boron nitride cake;
- milling said dried boron nitride cake to from a powdered boron nitride;
- and
- reforming said boron nitride containing material from said powdered boron nitride.
Dependencies are inferred from the claim text.