Abstract: To provide a lubricant for metallic material working and a method of press working a metallic material that makes it possible to improve the working accuracy of a press worked product and prolong the life of the die assembly beyond prior levels of life. [Solution] A lubricant for metallic material working comprises a mixture of a sulfur-based extreme pressure agent, an organic zinc compound, a calcium-based additive, and an ester compound, with lubricant base oil. The sulfur-based extreme pressure agent has a sulfur content of 5% by weight or higher based on the total weight of the lubricant. The organic zinc compound has a zinc content of 0.5% by weight or higher based on the total weight of the lubricant. The calcium-based additive has a calcium content of 0.5% by weight or higher based on the total weight of the lubricant. And the ester compound occupies a content of 1.0% by weight or higher based on the total weight of the lubricant.

Abstract: A lubricant for use in processing of a metallic material includes a lubricant base and additives added to the lubricant base. The additives include a sulfuric extreme pressure agent, a rust inhibitive agent and a calcium ingredient. Content of sulfur contained in the sulfuric extreme pressure agent is not less than 0.5 wt % of total weight of the lubricant and not greater than 20 wt % of total weight of the lubricant. Content of the rust inhibitive agent is not less than 0.1 wt % of total weight of the lubricant and not greater than 15 wt % of total weight of the lubricant. Further, content of calcium contained in the calcium ingredient is not less than 0.1 wt % of total weight of the lubricant and not greater than 15 wt % of total weight of the lubricant.

Abstract: A lubricant for use in processing of a metallic material includes a lubricant base composed of at least one paraffinic hydrocarbon and a modifier oil added to the lubricant base at a rate of 2-20 wt % of total weight of the lubricant. The modifier oil contains (a) a sulfuric extreme pressure agent, (b) a rust inhibitive agent and (c) a calcium ingredient. Content of sulfur is 0.5-20 wt % of total weight of the modifier oil. Content of the rust inhibitive agent is 0.1-15 wt % of total weight of the modifier oil. Further, content of calcium is 0.1-15 wt % of total weight of the modifier oil.

Abstract: A lubricant for use in processing of a metallic material includes a lubricant base and additives added to the lubricant base. The additives include a sulfuric extreme pressure agent, a rust inhibitive agent and a calcium ingredient. Content of sulfur contained in the sulfuric extreme pressure agent is not less than 0.5 wt % of total weight of the lubricant and not greater than 20 wt % of total weight of the lubricant. Content of the rust inhibitive agent is not less than 0.1 wt % of total weight of the lubricant and not greater than 15 wt % of total weight of the lubricant. Further, content of calcium contained in the calcium ingredient is not less than 0.1 wt % of total weight of the lubricant and not greater than 15 wt % of total weight of the lubricant.

Abstract: A nonchlorine lubricant for use in processing of a metallic material includes a lubricant base. The lubricant base includes at least one member selected from the group consisting of the vegetable oils and the neopentylated polyol esters. The lubricant may further include an additive added to the lubricant base. The additive comprises a sulfuric extreme pressure agent, an organozinc compound and a calcium ingredient. Preferably, the additive is added to the lubricant base such that sulfur content, zinc content and calcium content in the lubricant are respectively 5.0-50 wt %, 0.2-10 wt % and 0.01-10 wt % of total weight of the lubricant.

Abstract: A thread rolling lubricant of a nonchlorine species, in which a lubricant base oil is blended with 25 through 35 weight % of (A) a sulfur species extreme pressure agent, 6 through 16 weight % of (B) an organic zinc compound, 2 through 12 weight % of (C) a calcium species additive, and 2 through 13 weight % of (D) an oiliness agent for carrying out thread rolling.

Abstract: [Object] To provide a lubricant for metallic material working and a method of press working a metallic material that makes it possible to improve the working accuracy of a press worked product and prolong the life of the die assembly beyond prior levels of life. [Solution] A lubricant for metallic material working comprises a mixture of a sulfur-based extreme pressure agent, an organic zinc compound, a calcium-based additive, and an ester compound, with lubricant base oil. The sulfur-based extreme pressure agent has a sulfur content of 5% by weight or higher based on the total weight of the lubricant. The organic zinc compound has a zinc content of 0.5% by weight or higher based on the total weight of the lubricant. The calcium-based additive has a calcium content of 0.5% by weight or higher based on the total weight of the lubricant. And the ester compound occupies a content of 1.0% by weight or higher based on the total weight of the lubricant.

Abstract: A non-chlorine type lubricant in which a sulfur type extreme pressure additive, an organic zinc compound, a calcium type additive, and an ester compound are blended with a base oil for the lubricant, and having a kinetic viscosity from 5 to 50 mm2/s at 40° C.

Abstract: A lubricant for use in press working of a metallic material includes a paraffinic hydrocarbon. The paraffinic hydrocarbon is contained at a rate of 96-100 wt % of total weight of the lubricant. The lubricant has a kinetic viscosity of 2.0 or less at 40° C. Preferably, the paraffinic hydrocarbon has a carbon number of 8-13 and a boiling point of 210° C. or less.

Abstract: A process for producing an [S,S]-ethylenediamine-N,N'-disuccinic acid alkali metal salt which comprises reacting fumaric acid with ethylenediamine in an aqueous medium in the presence of an ion of at least one metal selected from the group consisting of alkaline earth metals and transition metals by the action of ethylenediamine-disuccinic acid ethylenediamine lyase of microorganism origin, adding an alkali hydroxide to a reaction product mixture thereby to separate and recover the metal ion as an insoluble precipitate, and obtaining an [S,S]-ethylenediamine-N,N'-disuccinic acid alkali metal salt.

Abstract: This invention relates to a method for removing fumarase activity from a microorganism or processed product thereof having ethylenediamine-N,N'-disuccinic acid ethylenediamine lyase activity, which includes treating the microorganism or processed product thereof with an aqueous alkaline solution at a pH of 8.0 to 10.5 in the presence of at least one salt with a concentration of 5 mM to 1000 mM. The salt is preferably selected from the group consisting of sodium, potassium, ammonium and C.sub.2-6 alkanediamine salts of boric acid, phosphoric acid, hydrochloric acid, sulfuric acid, acetic acid, oxalic acid, fumaric acid, maleic acid and ethylenediamine-N,N'-disuccinic acid, and mixtures thereof.

Abstract: A process for producing an optically active aminopolycarboxylic acid, such as S,S-ethylenediamine-N,N'-disuccinic acid, from a mixture of a diamine, such as ethylenediamine, with fumaric acid using a microorganism having a lyase activity, wherein at least one metal ion selected from the group consisting of an alkaline earth metal, iron, zinc, copper, nickel, aluminum, titanium and manganese is added to the reaction system. According to this process, aminopolycarboxylic acids, such as S,S-ethylenediamine-N,N'-disuccinic acid, or metal complexes thereof, can be appropriately and efficiently produced while improving the reaction yield.

Abstract: The present invention relates to a DNA derived from microorganisms of the genus Rhodococcus and conferring kanamycin resistance on hosts with a DNA sequence coding for the amino acid sequence of Sequence No. 1 or a polypeptide containing a partial sequence thereof. The kanamycin resistance gene of the present invention is useful to construct vectors for microorganisms of the genus Rhodococcus, particularly vectors for self-cloning of Rhodococcus rhodochrous.