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| Number | Title | Issue Date |
| 4386940 | Gasification of carbonaceous solids In a system of fluidized gasification of carbonaceous solids in which fines are burned in an external combustor to heat recycle solids, fines entrainment is reduced by introducing the finest of the fines into the combustor from the lower end of a fluidize... | 06/07/1983 |
| 4201667 | Process for removing arsenic from aqueous mediums A process for removing arsenic from aqueous mediums by adding, in the presence of phosphorus, sufficient calcium hydroxide to adjust the aqueous medium to a pH of from about 7.0 to 11.5, whereby precipitates of both arsenic and phosphorus are formed and a... | 05/06/1980 |
| 4097520 | Preparation of peracetic acid by oxidation of acetaldehyde This specification discloses a vapor phase process for oxidizing acetaldehyde to peracetic acid, acetic acid being formed as an additional product. Oxygen is used as the oxidizer at concentrations of less than 10% by using excess acetaldehyde and diluting... | 06/27/1978 |
| 4023976 | Manufacture of glass using briquettes An improved process is described for producing glass in which a glass batch is mixed with a binder, aged, compacted, and compressed into briquettes, which are heated to partially react the contents of the batch in a prereaction stage. Prereacted briquette... | 05/17/1977 |
| 4021527 | Production of sodium carbonate Method of preparing refined, dense soda ash from crude trona by calcining the crude trona to crude sodium carbonate, mixing the crude sodium carbonate with an aqueous solution of soda ash or water to form a substantially saturated crude sodium carbonate s... | 05/03/1977 |
| 4021361 | Storage-stable detergent composition containing sodium perborate and activator A storage-stable bleaching detergent composition is obtained by adding, to a typical solid detergent mix, sodium perborate or sodium carbonate peroxide as a bleaching agent, and from about 50% to about 100% of the weight of the sodium perborate of an acti... | 05/03/1977 |
| 4020879 | Power strapping tool A power strapping tool having an anvil and a tensioning wheel adapted to engage with overlapping portions of a strapping looped about a package and extending to a supply. The tensioning wheel is rotatable in a direction as to tension the loop of strapping... | 05/03/1977 |
| 4020148 | Process for drying sodium carbonate peroxide Manufacturing dry, free-flowing crystalline sodium carbonate peroxide by passing a gas stream at a temperature between 70° and 150° C into a drying zone containing moist sodium carbonate peroxide while maintaining the exit gas stream temperature between... | 04/26/1977 |
| 4016164 | Process for purifying crude cyanuric acid Process for purifying crude cyanuric acid whereby crude cyanuric acid is digested with an aqueous phosphoric acid solution containing about 10% to about 85% phosphoric acid at a temperature of about 180° C to about 220° C under at least the autogenously... | 04/05/1977 |
| 4014805 | Dry cleaning formulation Improved dry cleaning formulation containing a dry cleaning solvent, water, inorganic polyphosphate salt, hydrogen peroxide and a suitable detergent surfactant having a pH value of from 5 to 9, which minimizes equipment corrosion and maintains fabric stre... | 03/29/1977 |
| 4013575 | Dry cleaning with peracids Textile fabric stain removal is significantly improved by including in conventional dry cleaning solvent baths, a preformed or in situ generated peracid.... | 03/22/1977 |
| 4012476 | Molding process for the manufacture of shaped carbon articles A molding process for the manufacture of shaped carbon articles wherein a mixture of pitch, tar, finely-divided coke and microcrystalline cellulose is formed, the mixture compressed to form a shaped article, and the article calcined.... | 03/15/1977 |
| 4011196 | Stabilized polyester resin and processes for making them Process of making a polyester resin using a zinc esterification catalyst and a hindered phenol stabilizer.... | 03/08/1977 |
| 4007159 | Organic substrates stabilized by nitroalkane based hindered phenol compounds Organic substrates stabilized against oxidative deterioration by the use of high molecular weight hindered phenols based on the condensation of a nitroalkane with either a dialkyldithiocarbonate or with formaldehyde and a di-t-butylphenol or a substituted... | 02/08/1977 |
| 4006231 | N-aminosulfenylated derivatives of carbofuran A new class of chemical compounds useful for the control of insects consists of (methyl)(aminosulfenyl)carbamic acid esters of 2,3-dihydro-2,2-dimethyl-7-benzofuranol. The preparation of these compounds having a variety of (substituted-amino)sulfenyl grou... | 02/01/1977 |
| 4005647 | Strapping machine A strapping machine for applying a tensioned strap loop horizontally about the girth of an object in which a yoke for lacing a strap about an object and means for tensioning and securing such strap are together adjustable as a unit, first into a desired p... | 02/01/1977 |
