Titan Kogyo Kabushiki Kaisha

Nobuyuki Hashimoto

Makoto Komatsu

Takeshi Izumi

Takashi Sakuma

Toshimasa Seki

Hidenori Ishioka

Takafumi Tanaka

Tomoko Yoshimi

Kiyoshi Nakahara

Koji Nakata

Ayaka Ando

Takayasu Tanaka

Shigeru Nagaoka

Hiroaki Uchida

Hideaki Tokunaga

Koji Kurosaki

Noriyuki Itofuji

Kouji Kurosaki

Seiji Shinohara

Provided are a cobalt ion adsorption material which has a large adsorption capacity and which tends not to generate fine powder, and a method for producing the same. This cobalt ion adsorption material is a powder with a particle diameter of 100-1,000 μm, and contains 0.3-8.0 parts by mass of a binder constituted of a water-insoluble metal oxide or metal hydroxide fine particles with respect to 100 parts by mass of a cobalt adsorption main agent constituted of potassium hydrogen dititanate hydrate.

Cobalt ion adsorption material and method for producing same

The present invention provides a particulate cobalt ion adsorbent which has a high adsorption capacity. A particulate cobalt ion adsorbent which contains potassium hydrogen dititanate hydrate represented by chemical formula KHO.2TiO.nHO (wherein x is 0.5 or more and 1.3 or less, and n is greater than 0), and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.

Cobalt ion adsorbent, method for producing same and treatment apparatus for cobalt ion-containing liquid

Provided is a particulate alkaline earth metal ion adsorbent having a large adsorption capacity. The particulate alkaline earth metal ion adsorbent comprising: a potassium hydrogen dititanate hydrate represented by a chemical formula KHO&#xb7;2TiO&#xb7;nHO, wherein x is 0.5 or more and 1.3 or less, and n is greater than 0; and no binder, wherein the particulate alkaline earth metal ion adsorbent has a particle size range of 150 &#x3bc;m or more and 1000 &#x3bc;m or less.

Alkaline earth metal ion adsorbent, and production method of the same, and alkaline earth metal ion-containing liquid treatment apparatus

The present invention provides a novel titanium-based composite oxide being usable as an electrode material for a lithium secondary battery and having a high capacity and an excellent cycle stability, a method for producing the same and a lithium secondary battery using the titanium-based composite oxide. Disclosed is a compound obtained by compositing titanium oxide with elements other than titanium, specifically a titanium-based composite oxide wherein the relevant chemical formula is TiMO, M is the element Nb or the element P, or a combination of these two elements in an optional ratio therebetween, x is such that 0&#x3c;x&#x3c;0.17, y is such that 1.8&#x2266;y&#x2266;2.1, x is the sum of Nb and P when M is a combination of the element Nb and the element P, and the present invention provides a lithium secondary battery using as an electrode the titanium-based composite oxide.

Titanium oxide-based compound for electrode and lithium secondary battery using the same

For the purpose of increasing the electric capacity of lithium secondary batteries comprising titanium-based negative electrode materials, the present invention aims to produce a titanium oxide compound whose crystal structure, crystallite size, specific surface area and primary particle size are controlled, and to provide a lithium secondary battery comprising such a compound. The present invention produces a lithium secondary battery by using, as an electrode active material, a titanium oxide compound for use in an electrode, which is represented by TiO.(HO)a.(AO)b (wherein A is Na or K, a is 0&#x3c;a=1, and b is 0&#x3c;b=0.1) and has a main peak at 2&#x3b8;=20&#xb0; to 30&#xb0; and a minor peak at 2&#x3b8;=45&#xb0; to 55&#xb0; in its X-ray diffraction pattern, wherein the crystallite size determined from the main peak ranges from 40 &#x212b; more to 500 &#x212b; or less.

Titanium oxide compound for use in electrode and lithium secondary battery comprising the same

A black pigment powder having a low value of magnetization according to the present invention is characterized in that it consists of a composite oxide containing FeTiOas a main component, wherein the total amount of Fe (II) and Fe (III) to Ti is from 150 to 300 atomic %, in such an amount that the amount of Fe (II) to the total amount of Fe (II) and Fe (III) is 0.50 or more, and that the L value of a coating according to the Hoover-type muller method is 9.0 or less. It is employed to produce a toner composition, a coating composition, a resin composition, a cosmetic material and the like.

Black pigment powder having a low value of magnetization, process for producing the same, and applications thereof

In a process for producing hydrated iron oxide which comprises the steps of adding an aqueous alkali solution to an aqueous solution of a ferrous salt in an amount no more than a neutralizing equivalent amount with respect to said ferrous salt, oxidizing the resulting ferrous hydroxide containing suspension to produce the seed crystals of hydrated iron oxide and subsequently supplying an additional amount of alkali and oxidizing the hydrated iron oxide to grow, sulfurous acid or a sulfite is added to either the aqueous ferrous salt solution or the aqueous alkali solution or the suspension containing ferrous hydroxide before the oxidation of ferrous hydroxide starts. The resulting hydrated iron oxide may be used as a raw material to produce berthollide, maghemite or a cobalt-doped ferromagnetic iron oxide.

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Ube, Japan

Nobuyuki Hashimoto