5-amino-1,2,3,4-tetrahydroanthraquinone, as a new industrial product, is disclosed together with its preparation by reduction from 5-nitro-1,2,3,4-tetrahydroanthraquinone.

PURPOSE:To increase the coke grain size of a briquette coal block, and to utilize the blast furnace dust effectively, by adding a silicon compound to blended coal, forming the coal to a block having specific bulk density, and carbonizing the block in a chamber oven. CONSTITUTION:A blended coal is added with a silicon compound, and formed to a block somewhat smaller than the inner space of a chambe...

PURPOSE:To reduce the cost of manufacturing an offshore working platform by a method in which a portion to share reaction which acts on cords constituting the support legs of the platform is provided in all circumferential direction and the supporting structure of the legs is simplified. CONSTITUTION:A platform 1 having an upper guide 15 and a lower guide 16 as horizontal reaction-sharing parts is...

PURPOSE:To detect a fault with just a single processor by connecting an originating and an incoming part to actuate for the information on a processor to be tested and monitoring the transferred information to detect the fault. CONSTITUTION:A calling signal CR delivered from the transmission part 301A of the originating part 301 of a CPU30 is received at the reception part 302B of the incoming par...

PURPOSE:To execute a transmission program for phase pulse signal of the next cycle in a normal way through an arithmetic processor by resetting immediately an arithmetic device when a program has a runaway. CONSTITUTION:The reference pulse supplied from a reference pulse generating circuit 2 is impressed to the synchronizing input terminal 4 of the arithmetic processor CPU3, and therefore the CPU3...

PURPOSE:To previously perform the test for evaluating IC chips and facilitate the exchange of defective IC chips after mounting by adhesion-fixing electrode patterns of the first and second substrate after the first substrate loaded with an IC chip is combined with the second substrate wherein it can be fitted. CONSTITUTION:After fusing the IC chip 3 to the first substrate 7 by means of solder, th...

PURPOSE:To increase the octane number and decrease the NOx content in the exhaust gas, by reacting a lower alcohol with isobutylene under specific conditions, and by incorporating the reaction product with a fuel for internal combustion engines after removal of unreacted compounds.

PURPOSE:To increase the processing speed of a vector data with a comparatively small quantity of hardware by using a data buffer of loading/storing pipeline and an aligning part in common with each other. CONSTITUTION:A vector register 11 consisting of one or plural elements is provided together with a main memory 12, an access pipeline 13 which reads data out of the memory 12 to write them into t...

A foam article suitable for use as a seat cushion includes a supportive bottom layer of firm high density foam, a comfortable top layer of soft low density foam and a border or side wall of foam of intermediate density. The foam article has a sag factor of about 4.5 to about 6.5, and the foam layers and the side wall are bonded together without employing adhesives. A method of preparing the foam a...

A foam article suitable for use as a seat cushion includes a supportive bottom layer of firm high density foam, a comfortable top layer of soft low density foam and a border or side wall of foam of intermediate density. The foam article has a sag factor of about 4.5 to about 6.5, and the foam layers and the side wall are bonded together without employing adhesives. A method of preparing the foam a...

Cationic dyestuffs of the formula in which R represents hydrogen, an alkyl, alkenyl, cycloalkyl or aralkyl radical, R1 represents hydrogen or an alkyl, alkenyl, cycloalkyl or aralkyl radical, with the proviso that at least one of the radicals R and R1 represents a C2-C4-hydroxyalkyl group and An(-) represents an anion, and in which the cyclic and acyclic radicals can contain nonionic s...

PURPOSE:To form a thick film integrated circuit of good heat dissipating effect by forming a thick film resistor on an electric insulation silicon carbide ceramic substrate via a glass film. CONSTITUTION:Using the electric insulation Si carbide ceramic substrate 1, the thick film conductor film 2 is formed on the substrate 1, and a semiconductor element 4 is connected to the thick film conductor f...

PURPOSE:To obtain a hot-rolled wire rod and steel bar having the characteristic equivalent to those by ordinary spheroidizing annealing by combining a specific hot rolling condition and cooling condition. CONSTITUTION:A steel material is subjected to finish rolling continuously under the condition of >=80% total draft in a temp. region from the Ar1 transformation point temp. to the temp. which is ...

The invention relates to a cargo pallet preferaly intended to transport corrugated cardboard containers and the like. The pallet is characterized in that it is assembled of two components in the form of struts 1,2 provided with blocks and capable in carrying position to be interlocked by action of gravity, one said strut 1 entering a groove in said second strut 2. The struts are pivotal relative o...

The cover layer of the surfacing is produced from a binding composition consisting essentially of brick dust, mineral material and tile adhesive. The mineral material used is preferably finely divided quartz sand. The strength of the cover layer, its slip behaviour and softness can be adjusted substantially by appropriate selection of the component fractions and of the cover layer thickness. For p...

A high-foaming liquid detergent composition, suitable inter alia for hand dishwashing, contains from 2 to 60% by weight of an active detergent system including a dialkyl sulphosuccinate (at least 2%), and also contains an added magnesium salt providing from 0.02 to 0.24% by weight of magnesium ions. The last-mentioned ingredient gives improved product stability, as demonstrated by a lower clear po...

1525509 Hydrodesulphurization of heavy oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 22 Dec 1975 [24 March 1975] 52346/75 Heading C5E The catalytic hydrodesulphurization of heavy vanadium-containing oils is carried out in substantial absence of water vapour until the average vanadium content of the catalyst has increased by at least 5 parts by weight per 100 parts of the catalyst carrier and ...

Combustion gas passes upwardly through the radiant section of a fired process heater having vertical tubes in such manner that the gas is in predominantly back-mixed flow condition in the lower portion of the radiant section and predominantly plug-flow condition in the upper portion of the radiant section.