Abstract: New products are provided for the correction of iron chlorosis in plants. The products are iron chelates prepared by adding ferric iron salts to concentrated solutions of hot caustic effluents from bleach plants of wood pulp mills. The dried chelate is added to the soil in which the plants are growing or to the soil in which plants are to be grown.

Abstract: The method of flue and fireplace cleaning includes the preparatory steps, if needed, of cleaning out ashes from a pit or sump, followed by connecting a vacuum hose to a low point in each system and spraying an industrial type detergent steam spray through a steam hose from the top of the chimney downward, loosening all sooty deposits in the form of a wet slurry which is collected and removed through the vacuum hose. A fireplace is cleaned by a similar steam spray and vacuum operation after sealing the fireplace opening by means of a tight-fitting shield having openings for the steam and vacuum conduits. In flue cleaning the vacuum hose is connected by means of an adaptor having an inwardly projecting ledge which intercepts falling debris and directs it into the hose, and in industrial installations the vacuum removal system may be replaced by a removable receptacle occupying the bottom of a stack in a position to receive the debris from periodic steam cleaning operations.

Abstract: A method of producing a sorption body is disclosed in which a plurality of sheets of asbestos paper are formed from a fiber pulp having molecular sieves placed therein. The sheets are arranged in contact with one another at spaced points to form transectional channels therebetween for the media which are to pass through the body, with the sheets supporting each other. The assembled sheets are subjected to an increase in temperature sufficient to drive off the organic binding agents present in the paper and to break down the asbestos fiber to a powdery consistency.

Abstract: Process and apparatus for the liquid treatment of a surface by projecting sponge-like elements. The said elements are metered seriation from a hopper in a controlled positive manner by a paddle-wheel means.

Abstract: This invention concerns polymeric orthoesters having a repeating mer comprising a hydrocarbon radical and an orthoester functionality of the general formula: ##STR1## wherein R.sub.1 is a monovalent radical, R.sub.2 is a hydrocarbon radical, a is 2 to 3, and n is at least 10. The polymers are useful for making articles of manufacture and as coatings for beneficial agents.

Abstract: Disclosed are hydrolytically stable spray oil containing plant assimilating boron compounds for improving plant growth. Suitable boron compounds include the esters of boric, boronic and borinic acids including the cyclic esters, the alkanolamine esters, the non-alpha hydrogen and branched alkyl esters and amine-borate adducts. The spray oils are formulated to contain from 0.01 to 2.0 weight/volume percent of boron.

Abstract: Apparatus for producing a homogeneous, chemically reactive system of a starting material of highly viscous or pasty consistency, and at least one further reaction partner which is added to the starting material to chemically treat the starting material. The apparatus includes a substantially vertically oriented vessel having a cylindrical interior side wall and a frontal face at the top of the vessel. An inlet opening is provided for the starting material to be treated and an inlet opening is provided for each of the other reaction partners. The inlet openings are disposed in the frontal face of the vessel, are arranged in close juxtaposition when seen in the circumferential direction, and are in the vicinity of the interior wall of the vessel. A driven rotor, studded with a plurality of blades, is coaxially arranged in the interior of said vessel. The rotor has a first ring of blades which is arranged so that it scrapes over the openings of the inlet openings in the form of a knife edge.

Abstract: Use of a cationic copolymer prepared by incremental addition of a cationic monomer during the polymerization reaction of a nonionic monomer in the drainage of formed paper provides improved performance characteristics.

Abstract: A nitrogen containing slow release glass fertilizer is prepared by co-melting phosphorus oxynitride with phosphorus pentoxide, an alkaline metal oxide and an oxide of a metal of Group II or Group III of the periodic table.

Abstract: Polymers comprising a plurality of adjacent activated unsaturations and which are hydrophilic are particularly useful as wet and dry strength improvers for cellulosic substrates.