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Class 204/909 - Heavy metal treating agent


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Subject matter wherein the designated nonreactant chemical
No. of patents: 10
Last issue date: 08/21/1984


NumberTitleIssue Date
4466870Organic sonochemistry process
The method of causing or promoting chemical changes involving the step of subjecting reactants to ultrasonic energy as a key treatment step, including methods of: (1) reducing aryl halides by treating a mixture of aryl halide and lithium aluminum hydride ...
08/21/1984
4451343Photo-initiators for decarboxylation reactions
A process is provided for the selective photochemical decarboxylation of alpha-hydroxy carboxylic acids to the corresponding alcohols. The process is enhanced with the use of photo-initiator compounds....
05/29/1984
4450059Photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid
A process is provided for the photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid to form the corresponding alcohol wherein the alpha-hydroxy carboxylic acid metal salt is exposed to light in the absence of a photosensitizing...
05/22/1984
4381980Process for the manufacture of sulfobetaines
The invention relates to a process for the manufacture of N-substituted 3-sulfopropylammonium betaines. N-substituted allylammonium compounds are reacted in the presence of initiators, such as oxygen, and catalytic acting transition metallic ions of the f...
05/03/1983
4332654Photoactivated catalytic hydrosilylation of carbonyl compounds
A process to form silyl ethers by contacting a carbonyl compound with an organosilicon hydride under reaction conditions in the presence of a catalyst, said catalyst being formed from a transition metal carbonyl coordination compound precursor by irradiat...
06/01/1982
4325793Catalysis of photochemical production of hydrogen from water
The invention is a catalytic process for splitting water to provide hydrogen by irradiating an aqueous solution with actinic light. The solution contains a catalyst comprising a complex compound of a metal of the Group Ib, IIb, IVb, Vb, VIb, VIIb and VIII...
04/20/1982
4287036Method for producing a reduction product using a photo-regenerated transition metal catalyst
A catalytic method of reducing chemical compounds in solution utilizing a transition metal alcoholate complex as the reducing agent is disclosed. More particularly, this active reducing complex is produced and regenerated from its oxidized inactive state ...
09/01/1981
4173521Photosensitive redox solutions
The invention provides aqueous solutions of (1) the reaction product of anhydrous trimethyl borate with titanium tetrachloride and (2) polyvinyl alcohol, preferably not exceeding about 0.5 weight percent of each. These solutions have a pH of about 1 but w...
11/06/1979
4152230Photooxidation process
A photochemically initiated oxidation process for organic materials using only catalytic quantities of the photochemical agent by conducting the reaction in the presence of a compound of a variable valency metal (especially copper) in order to trap the ph...
05/01/1979
4032503Process for the manufacturing of styrene derivatives, new styrene derivatives and their use as optical brighteners
Process for the manufacture of styrene compounds of the formula ##STR1## wherein A denotes one of the ring systems ##STR2## and wherein R1 denotes hydrogen, alkyl with 1 to 8 carbon atoms, cyclohexyl, phenylalkyl with 1 to 3 carbon at...
06/28/1977
 
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