Abstract:
A process for reducing an ore which comprises:(A) gasifying a solid carbonaceous granular fuel by contacting the same in a fixed bed with oxygen and steam at a pressure of 5 to 50 bars;(B) subjecting the gas produced from said gasification to shift conversion in order to reduce the residual carbon monoxide content to 1 to 10 percent by volume of dry gas(C) scrubbing the gaseous shift conversion gas to remove sulfur compounds and to reduce the CO.sub.2 content to no more than 3 percent by volume whereby to provide a scrubbed gas containing more than 70 percent by volume hydrogen and carbon monoxide which gas contains more than 10 percent by volume methane(D) admixing the so scrubbed gas with reduction process exhaust gas formed by reduction of ore(E) reforming the resultant mixture of gases at a pressure of 1.5-10 bars a temperature of 800.degree. to 1500.degree. C.; and(F) feeding at least a portion of such gas containing up to 3 percent by volume CO.sub.2 and 5 percent by volume methane at 700.degree.-1000.degree. to an ore-reducing plant and therein contacting said ore therewith.
Abstract:
Water-soluble dyes which contain one or two fiber-reactive groups of the formula ##STR1## in which each R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, it being possible for both R to have a meaning which is identical to or different from one another, Y is the vinyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --X in which X represents a substituent which can be eliminated as an anion, and m represents the number 2 or 3. These novel dyes can be used to dye hydroxy and/or carboxamide group-containing materials in particular fiber-materials, such as, in particular, cellulose fiber materials, in fast shades.
Abstract:
Method for preparation of dispersible, water-soluble polygalactomannans and polyglactomannan derivatives by crosslinking with borate ions, in which the polygalactomannan-containing endosperm of legumes is allowed to soak in an aqueous alkaline solution of a material containing borate ions in which the concentration of the borate ions, expressed as borax, is between 0.001 and 0.09 wt. % and the hydroxyl ion concentration, expressed as NaOH, is between 0.2 and 10 wt. % of the polygalactomannan and after taking up the solution, the cell structure of the splits is mechanically destroyed using high shear forces in a flaking, crushing or extruder process and then the product of the process is dried and ground in known fashion.
Abstract:
The invention relates to new alkyl ethers and phosphoric acid esters of Cassia tora polygalactomannans and their use, alone or in combination with other thickening agents, as thickening agents.
Abstract:
The invention relates to gelling agents and thickeners based on Cassia-galactomannans and comprising a synergistic mixture of (a) Cassia-galactomannan, and (b) carrageenan, agar and/or xanthan.
Abstract:
Compounds according to the general formula ##STR1## in which: D is phenyl, optionally substituted by sulfo, carboxy, alkyl, alkoxy, alkanoylamino and/or chlorine, at least by sulfo or carboxy, or is a sulfosubstituted naphthyl;E is 1,4-phenylene, substituted by alkyl, alkoxy, alkanoylamino, ureido and/or chlorine, or is 1,4-naphthylene optionally substituted by sulfo;K is 1,4-phenylene, substituted by alkyl, alkoxy, alkanoylamino, ureido and/or chlorine, or is a 1,4-naphthylene optionally substituted by sulfo;A is a direct bond or is methylene or is a bivalent amino, alkylamino or (.beta.-cyanoethyl)-amino group;Y is vinyl or .beta.-chloroethyl.These compounds are fiber-reactive and have dyestuff properties and dye hydroxy--and/or carboxamido-containing material, in particular fiber material such as wool and, in particular cellulose, in strong color-fast shades.
Abstract:
The invention relates to gelling agents and thickeners based on Cassia-galactomannans and especially a synergistic mixture of (a) Cassia-toragalactomannan, and (b) carrageenan, agar and/or xanthan.
Abstract:
A process for producing colorless, odorless and tasteless cassia endosperm flour is revealed in which the endosperm is extracted at least once, either in a whole or comminuted state, with a mixture of (a) water, and (b) alkanol and/or acetone.
Abstract:
Method for preparation of dispersible, water-soluble polygalactomannans and polygalactomannan derivatives by crosslinking with borate ions, in which the polygalactomannan-containing endosperm of legumes is allowed to soak in an aqueous alkaline solution of a material containing borate ions in which the concentration of the borate ions, expressed as borax, is between 0.001 and 0.09 wt % and the hydroxyl ion concentration, expressed as NaOH, is between 0.2 and 10 wt % of the polygalactomannan and after taking up the solution, the cell structure of the splits is mechanically destroyed using high shear forces in a flaking, crushing or extruder process and then the product of the process is dried and ground in known fashion.
Abstract:
In a flat-knitting machine having a needle bed and a plurality of carriages which orbit the needle bed in a predetermined path, the needles which are to knit in accordance with a predetermined pattern are selected by advancing electromechanical controllers in a path other than the predetermined path and transmitting activating signals to them via trailing cables from a stationary control unit when the controllers move in the same direction as and parallel to the carriages.