Abstract:
Processes for forming high iron content ferric chloride solutions, reconstituting ferric chloride solutions, and transporting the stable ferric chloride solutions with the high iron content are disclosed.
Abstract:
Processes for forming high iron content ferric chloride solutions, reconstituting ferric chloride solutions, and transporting the stable ferric chloride solutions with the high iron content are disclosed.
Abstract:
The present invention provides an improved process for the recovery of hydrogen gas and a metallic salt. The metallic salt may be calcium citrate, magnesium citrate, or ferric chloride.
Abstract:
A process for the production of metal fluorides comprising introducing a predetermined weight of anhydrous hydrofluoric acid into a reaction vessel and initiate a mixing action, preheating a predetermined weight of anhydrous metal to a predetermined reaction temperature, introducing aliquots of the anhydrous metal into the reaction vessel at intervals until the entire predetermined weight of the anhydrous metal has been added, removing excess anhydrous hydrofluoric acid from the reaction vessel, and remove a metal fluoride resultant product from the reaction vessel.
Abstract:
The present invention relates to a field of preparing high-purity ferric chloride from hydrochloric solutions containing impurities. More specifically the invention concerns a ferric iron extraction from water solutions as a result of concentrated hydrochloric acid interaction with iron-containing concentrates, as a result of multi-stage extraction of ferric chloride from solutions of complicated composition and due to processing of industrial wastes, including spent etching solutions of metallurgical plants after chlorination. The essence of the invention is that the proposed method includes two stages of concentration, extraction, and stripping steps. As an extracting agent use is made of aliphatic alcohol, predominantly octanol-1, octanol-2, 2-ethylgexanol, and decanol-1 or their mixtures. The alcohol content in organic phase is up to 100 %. Attained technical result consists in obtaining high-purity ferric chloride solution with not less than 300 kg/m3 FeCl3 concentration. Ferric chloride recovery is 96-98 % irrespective of the nature of impurities present in a feed hydrochloric solution concurrently with the limitation of waste solutions and optimization of material flows and equipment used. The resulting ferric chloride solutions are feasible for further processing in high performance installations of spray roasting which permit combine in one process receiving of high-purity ferric oxide and regenerated hydrochloric acid of high concentration.
Abstract:
The present invention relates to a field of preparing high-purity ferric chloride from hydrochloric solutions containing impurities. More specifically the invention concerns a ferric iron extraction from water solutions as a result of concentrated hydrochloric acid interaction with iron-containing concentrates, as a result of multi-stage extraction of ferric chloride from solutions of complicated composition and due to processing of industrial wastes, including spent etching solutions of metallurgical plants after chlorination. The essence of the invention is that the proposed method includes two stages of concentration, extraction, and stripping steps. As an extracting agent use is made of aliphatic alcohol, predominantly octanol-1, octanol-2, 2-ethylgexanol, and decanol-1 or their mixtures. The alcohol content in organic phase is up to 100 %. Attained technical result consists in obtaining high-purity ferric chloride solution with not less than 300 kg/m3 FeCl3 concentration. Ferric chloride recovery is 96-98 % irrespective of the nature of impurities present in a feed hydrochloric solution concurrently with the limitation of waste solutions and optimization of material flows and equipment used. The resulting ferric chloride solutions are feasible for further processing in high performance installations of spray roasting which permit combine in one process receiving of high-purity ferric oxide and regenerated hydrochloric acid of high concentration.
Abstract:
The invention relates to a method for recycling chlorine in the production of titanium tetrachloride. Further, the invention refers to the use of this method in the chloride process to produce titanium dioxide.
Abstract:
본 발명은 자성 산화철-그래핀 복합체의 제조 방법, 이에 따라 제조된 자성 산화철-그래핀 복합체 및 이를 포함하는 전자파 차폐용 조성물에 관한 것으로, FeCl 3 를 사용한 stage 1-GIC로부터 그래핀을 제조함으로서, 제조 과정에서 FeO x 형태의 자성 입자가 자연스럽게 그래핀 표면에 형성된다는 특징이 있다. 또한, 그래핀의 결함을 최소화하면서 자성 물질을 그래핀 표면에 형성함으로서, 본 발명에 따라 제조된 자성 산화철-그래핀 복합체는 전자파 흡수체로 유용하게 사용할 수 있다.