Alkali Metal Cyanides TRIZ Cases
- Cyanide Crystallization Process With Controlled Hydroxide Addition
Controlled hydroxide addition before solid-liquid separation raises cyanide product stability while limiting HCN release, clumping, and drying load.
- HCN Polymer Coating for Universal Substrate Adhesion
Hydrogen cyanide monomers polymerize into stable polymeric layers on diverse substrates.
- Cyanide Recovery via UV Photodissociation and Membrane Absorption
Ultraviolet photodissociation breaks metal-cyanide complexes into free cyanide, which a gas-filled membrane captures as sodium cyanide without toxic handling.
- High Concentration Cation Exchange Metathesis Resin Control
Optimizing resin crosslinking and solution normality during univalent-divalent ion exchange minimizes waste volume while maintaining high product purity.
- Onsite Plasma Cyanide Production for Mining Safety
Plasma reactors synthesize cyanide from hydrocarbon and nitrogen sources at remote gold mining sites, eliminating hazardous long-distance transportation risks.
- Sodium Cyanide Preparation via Liquid Phase Absorption
Liquid phase absorption of hydrogen cyanide into alkali hydroxide enables solid sodium cyanide production.
- Cyanide Waste Gas Decontamination via Absorption and Segmented Combustion
Segments combustion to reduce nitrogen oxides while recirculating mother liquor to minimize waste.
- Inorganic Gold Compound Synthesis Using Halogen Oxidizers
Halogen oxidizers dissolve gold in hydrochloric acid to produce tetrachloroauric acid without chlorine gas.