Abstract: This invention is a method to inhibit the polymerization of carbonyl compounds in a basic wash unit operation in a hydrocarbon cracking process, wherein a compound selected from the group consisting of alpha-amino acids and esters thereof and amides thereof and salts thereof and mixtures thereof or Mercaptoacetic acid and alkyl esters thereof, is added either to a stream comprising a carbonyl compound or to the basic wash unit operation; wherein the compound is selected such that it remains water-soluble and base-soluble and does not flocculate in the stream or in the basic wash unit operation; and wherein the stream is contacted with the compound either before or at the same time as the stream enters the basic wash unit operation; or wherein the compound is added to the basic wash unit operation before or while the stream enters the basic wash unit operation.

Abstract: A method for improving purification efficiency when distilling off aldehyde contaminants during chemical manufacturing processes by adding a substituted aromatic amine having electron donating group substituents prior to the distillation column. The method is particularly useful for removal of aldehydes such as acrolein, generated as a by-product of acrylonitrile manufacture. Preferred aromatic amines are 2-amino aniline, 3,4-dimethyl aniline and 4-ethyl aniline.

Abstract: A method of inhibiting the formation of fouling deposits occurring on the surfaces of an alkaline scrubber used to wash acid gases generated during the manufacture of olefins, which deposits are formed during the scrubbing of pyrolytically produced hydrocarbons contaminated with oxygen-containing compounds with a caustic solution having a pH>7, which comprises adding an effective depositing-inhibiting amount of a caustic solution-soluble substituted aromatic amine selected from the group consisting of: 2-aminophenol, 4-aminophenol, 4-aminobenzenesulfonic acid and salts thereof, 4-amino-o-cresol, 3-aminophenol, 2-aminobenzoic acid and salts thereof, 3-aminobenzoic acid and salts thereof, and 4-aminobenzoic acid and salts thereof to the caustic solution. A preferred substituted aromatic amine is the sodium salt of 4-amino- benzenesulfonic acid in aqueous solution.

Abstract: The present invention provides a method for inhibiting fouling deposits in chloroprene production units. The deposits are inhibited by addition to the chloroprene feedstock of an effective amount of a dispersant prepared in accordance with this invention. The dispersants comprise imides which are prepared by reacting substituted succinic anhydrides with amines.

Abstract: A class of compounds having the structural formula ##STR1## in which Ar is substituted phenyl and R is methyl or ethyl possesses improved activity as pre-emergent herbicides and insecticides.

Abstract: A class of compounds having the structural formula ##STR1## in which Ar is substituted phenyl and R is methyl or ethyl possesses improved activity as pre-emergent herbicides and insecticides.

Abstract: The novel compound having the structural formula ##STR1## is disclosed, as well as its use by pre-emergent application to control noxious grasses and some broadleaf weeds in cool season crops such as rape, sugar beets and flax.

Abstract: A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## In which R is C.sub.1 to C.sub.4 alkyl, alkenyl or aklynyl to which may be attached phenyl, pyridyl, benzoyl, phenoxy, halophenoxy, halobenzoyl, N-phenylcarbamyl, N-alkylcarbamyl, N-trifluoromethylthiadiazolylcarbamyl, carboxy, carbalkoxy or halo substituents,R.sup.1 is H, C.sub.1 to C.sub.3 alkyl, alkenyl or alkynyl to which may be attached phenyl, halophenyl or phenoxy groups, acetyl, or R and R.sup.1 together may be C.sub.2 to C.sub.4 alkylene,Ar is phenyl or benzoyl,R.sup.2 is C.sub.1 to C.sub.4 alkyl, alkoxy, alkylene, alkylamino or alkylthio, phenoxy, benzyloxy, carbalkoxy, acetyl, methylenedioxy, trifluoromethyl, nitro, halo or cyano and n may be zero or an integer from 1 to 4, with the provision that at least one position ortho to the point of attachment of a phenyl ring of the Ar structure must be unsubstituted,R.sup.

Abstract: Novel compounds having the structural formula ##STR1## in which R is H or agriculturally acceptable salts thereof, or C.sub.1 to C.sub.4 alkyl and R.sup.1 and R.sup.2 are hydrogen or C.sub.1 to C.sub.4 alkyl, alkoxy or carbalkoxy, halogen, thiocyano, hydroxy, phenoxy, methylenedioxy or methylthio are useful as plant growth regulators, particularly to increase fruit set with minimum deformative side effects.

Abstract: A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## in which R.sup.1 is: C.sub.1 to C.sub.4 alkyl, nitro or halo and n is zero or an integer from 1 to 4R.sup.2 and R.sup.3 are: H or C.sub.1 to C.sub.4 alkyl, or benzyl andAr is: adamantyl, C.sub.3 to C.sub.4 alkyl or alkenyl, benzyl, halobenzyl, naphthyl, phenyl or phenyl bearing thereon from one to three of the substituents: cyano, benzyloxy, nitro, bromo, chloro, trifluoromethyl and C.sub.1 to C.sub.4 alkyl, alkenyl, alkoxy, alkylthio and alkyl-substituted amino.

Abstract: A class of novel compounds is disclosed which has utility as plant growth regulators, having the general formula: ##STR1## in which X is O or S,Y is one of the group: ##STR2## R is H or CH.sub.3, Q is phenyl or chlorophenyl whenQ' is hydrogen, or Q and Q' together may form the remainder of a benzene ring.

Abstract: A novel class of growth regulator compounds of the structural formula ##STR1## is disclosed, in which Y is --COOH or an agriculturally acceptable salt thereof, --COOR, --CH.sub.2 OH, --CHO, --R, --OR or halogen and R is C.sub.1 to C.sub.4 alkyl or alkenyl.

Abstract: A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## In which R is cyano C.sub.1 to C.sub.5 alkyl, alkenyl or alkynyl to which may be attached phenyl, halophenyl, methylphenyl, pyridyl, benzoyl, trimethylacetyl, phenoxy, halophenoxy, halobenzoyl, N-phenylcarbamyl, N-alkylcarbamyl, N-trifluoromethylthiadiazolylcarbamyl, carboxy, carbalkoxy or halo substituents,R.sup.1 is H, acetyl C.sub.1 to C.sub.3 alkyl, alkenyl or alkynyl to which may be attached phenyl, halophenyl, carbethoxy, vinyloxy or phenoxy groups, or R and R.sup.1 together may be C.sub.2 to C.sub.4 alkylene,Ar is phenyl or benzoyl,R.sup.2 is C.sub.1 to C.sub.

Abstract: The novel compound having the structural formula ##STR1## is disclosed, as well as its use by pre-emergent application to control noxious grasses and some broadleaf weeds in cool season crops such as rape, sugar beets and flax.

Abstract: New compounds of the general structural formula ##STR1## are disclosed, in which Q is one of the following: ##STR2## R is methyl or ethyl, R.sup.1 is H or lower alkyl, R.sup.2 is lower alkyl and Y represents substituents, alike or unlike, selected from the following group: lower alkyl, lower alkoxy, lower alkylthio, bromo, chloro, fluoro, cyano, trifluoromethyl and 1-methylene and n=0 to 3, which are useful as plant growth regulators, both in the basic form illustrated above and also as the hydrohalide salts.

Abstract: A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## in which R.sup.1 is; C.sub.1 to C.sub.4 alkyl, nitro or halo and n is zero or an integer from 1 to 4R.sup.2 and R.sup.3 are; H or C.sub.1 to C.sub.4 alkyl or hydroxyalkyl, or benzyl andAr is; adamantyl, C.sub.3 to C.sub.4 alkyl or alkenyl, benzyl, halobenzyl, naphthyl, phenyl or phenyl bearing thereon from one to three of the substituents: cyano, benzyloxy, methylenedioxy, nitro, bromo, chloro, trifluoromethyl and C.sub.1 to C.sub.4 alkyl, alkenyl, alkoxy, alkylthio and alkyl-substituted amino.

Abstract: A novel class of growth regulator compounds of the structural formula ##STR1## is disclosed, in which Y is --COOH or an agriculturally acceptable salt thereof, --COOR, --CH.sub.2 OH, --CHO, --R, --OR or halogen and R is C.sub.1 to C.sub.4 alkyl or alkenyl.

Abstract: Unwanted vegetation is combated both pre- and post-emergently by application of various compounds having the general structural formula: ##STR1## in which R is H, lower alkyl or cycloalkyl, lower alkoxy, phenyl or substituted phenyl and R' is one of the following: H; ##STR2## or phenylsulfonyl.

Abstract: A group of 5-substituted-2-thiadiazolyl thiocarboxamides is useful as selective herbicides, particularly in combating weeds in grain crops. The herbicidal properties of the compounds are superior to those of corresponding carboxamides.