Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Boyer; Carl W.
Address:
Wyalusing, PA
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
4612183 Method of producing crystalline ammonium metatungstate September 16, 1986
A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating ammonium paratungstate in a multiple hearth furnace at from about 200.degree. C. to about 400.degree. C. to form a relatively uniformly heated ammonium para
4612181 Method of producing crystalline ammonium metatungstate September 16, 1986
A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating the ammonium paratungstate in a multiple hearth furnace at from about 200.degree. C. to about 400.degree. C. to form a relatively uniformly heated ammonium
4560539 Removal of ammonia from sodium tungstate solutions December 24, 1985
A process is disclosed for removing ammonia from a sodium tungstate solution. The process involves heating the solution at from about 80.degree. C. to about 95.degree. C., while at the same time maintaining the pH above about 9.4 by addition of sodium hydroxide to the sodium tungstat
4360503 Recovery of tungsten values from alkali tungstate solutions by solvent extraction November 23, 1982
In a two component extraction system for producing ammonium tungstate from aqueous alkali metal tungstate from aqueous alkali metal tungstate solution, the stripped organic is washed to form a wash solution which is mixed with concentrated ammonia solution to form an aqueous ammonia










 
 
  Recently Added Patents
Method and apparatus for supporting HARQ
Assisted hybrid mobile browser
Method and device for evaluating evolution of tumoural lesions
Blur correction device and imaging apparatus
Resin composition and molded article
Vectorization of program code
Traffic signal mapping and detection
  Randomly Featured Patents
Image forming apparatus
Column repair circuit in ferroelectric memory
Processing of data to determine compatability in an input/output processing system
Sintered spherical pellets
Illuminating scanner lid for an optical scanner
Continuous process for the preparation of acetic anhydride or mixtures of acetic anhydride and acetic acid
Conveyor apparatus and method for supplying a medicine-solution mixture
Di(7-octenyl) carbonate
Telephone base
Dual polarization broadband antenna having with single pattern