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Oral presentation

Development of a long-life vitrification melter

Kato, Junya; Miyauchi, Atsushi; Yamasaki, Akito*

no journal, , 

no abstracts in English

Oral presentation

Development of a long-life vitrification melter

Kato, Junya; Miyauchi, Atsushi; Aoshima, Atsushi; Shiotsuki, Masao; Yamashita, Teruo; Nakajima, Masayoshi; Morikawa, Yo; Miura, Akihiko; Fukui, Toshiki*; Yamasaki, Akito*; et al.

no journal, , 

no abstracts in English

Oral presentation

Development of long-life vitrification melter, 7; Examination on the behavior of particulate in vitrified waste

Miyauchi, Atsushi; Morikawa, Yo; Sasage, Kenichi; Yamashita, Teruo; Shiotsuki, Masao

no journal, , 

no abstracts in English

Oral presentation

Development of long-life vitrification melter, 5; Characterization of vitrified waste

Sasage, Kenichi; Miyauchi, Atsushi; Morikawa, Yo; Yamashita, Teruo; Shiotsuki, Masao

no journal, , 

Viscosity and specific resistivity of simulated waste glass was measured to investigate characterization of waste glass processed by the long-life vitrification melter. The composition of the simulated waste glass was varied based on 8 cases of assumed spent fuel conditions and reprocessing flows including reprocessing of FBR fuel with minor actinides separation. The viscosity of the sample glasses was from 0.5 to 1.8 times that of waste glass with standard composition. The specific resistivity of the sample glasses was from 0.5 to 1.5 times that of standard waste glass.

Oral presentation

Development of long-life vitrification melter, 12; Examination on the discharge of particulate in vitrified waste

Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Toyoshima, Mikihiro; Yamashita, Teruo; Shiotsuki, Masao; Matsumoto, Shiro*

no journal, , 

no abstracts in English

Oral presentation

Development of advanced vitrification melter, 17; Accumulation behavior and particulate forms of noble metals in vitrified waste

Yamanaka, Atsushi; Miyauchi, Atsushi; Morikawa, Yo; Sasage, Kenichi; Yamashita, Teruo

no journal, , 

no abstracts in English

Oral presentation

Development of advanced vitrification melter; Accumulation behavior and particulate forms of noble metals in vitrified waste

Miyauchi, Atsushi; Yamanaka, Atsushi; Morikawa, Yo; Sasage, Kenichi; Yamashita, Teruo

no journal, , 

no abstracts in English

Oral presentation

Study on Noble Metals sedimentation and viscosity of molten glass

Miyauchi, Atsushi; Nakajima, Masayoshi; Morikawa, Yo; Masaki, Toshio; Kobayashi, Hidekazu; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Oral presentation

Influence of long-term melting on the noble metals shape and glass viscosity

Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Masaki, Toshio; Kobayashi, Hidekazu; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Oral presentation

Study on the noble metals sedimentation behavior in the melted glass

Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Oyama, Koichi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Oral presentation

Influence of long-term melting on the noble metals shape and glass viscosity, 2

Oyama, Koichi; Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Oral presentation

Study on the sedimentation behavior of the noble metal particles in molten borosilicate glass

Oyama, Koichi; Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Oral presentation

Oral presentation

Sedimentation behavior of noble metal particles in simulated high-level waste borosilicate glasses

Nakajima, Masayoshi; Oyama, Koichi; Morikawa, Yo; Miyauchi, Atsushi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

Noble metal elements (NME) contained in high level liquid waste (HLLW) are distributed in a vitrification melter. Some part of them forms sediment which causes negative effects to steady operation of the melter. The formation process and characteristics of the sediment is useful information for considering methods of removing or discharging them. Thus the sedimentation observation was carried out by using simulated glass. Samples with 1.1wt% of initial NME concentration held at 1100$$^{circ}$$C indicated zone settling, and the settling rate of interface is constant; 2.4 mm/h. This sedimentation behavior is the type of rapid settling. Following the rapid settling, the settling rate goes slower gradually, this is the type of compressive settling. The samples whose initial NME concentrations are 3.0wt% and 6.1wt% showed compression settling form the beginning. From the settling curve of interface, the maximum concentration of NME in sediment was estimated as around 23-26wt%. This value can specify the properties of sediment to be removed, Also, growth of NME particles was observed by holding at 1100$$^{circ}$$C for up to 2880 hours.

Oral presentation

Elemental analysis of simulated waste glass by laser ablation ICP-AES, 4; Verification of quantitative analysis of various elements in simulated waste glass

Inose, Takehiko*; Nishizawa, Daiji; Oyama, Koichi; Miyauchi, Atsushi; Nagai, Takayuki

no journal, , 

no abstracts in English

Oral presentation

Elemental analysis of simulated waste glass by laser ablation ICP-AES, 5; Application of LA-ICP-AES for inactive mock-up test of vitrification process

Inose, Takehiko*; Nishizawa, Daiji*; Miyauchi, Atsushi; Oyama, Koichi; Yamakawa, Atsushi*; Nagai, Takayuki

no journal, , 

no abstracts in English

Oral presentation

Application of laser ablation ICP-AES for inactive mock-up test of vitrification process

Oyama, Koichi; Inose, Takehiko*; Miyauchi, Atsushi; Nishizawa, Daiji*; Nagai, Takayuki

no journal, , 

no abstracts in English

Oral presentation

Elemental analysis of borosilicate glass by laser ablation ICP-AES

Inose, Takehiko*; Oyama, Koichi; Miyauchi, Atsushi; Nishizawa, Daiji*; Nagai, Takayuki

no journal, , 

no abstracts in English

Patent

ガラス固化体の元素濃度分析方法

西澤 代治; 大山 孝一; 宮内 厚志; 永井 崇之

猪瀬 毅彦*

JP, 2014-029623  Patent licensing information  Patent publication (In Japanese)

【課題】簡単、迅速、正確なガラス固化体の元素濃度を測定するレーザアブレーション法誘導結合プラズマ発光分光分析法を提供する。 【解決手段】光源としてYAGレーザが光源として用い、標準ガラス試料検量線が作成される工程、上記検量線が使用され、分析対象のガラス固化体の元素濃度が分析される工程を含む。更にYAGレーザは試料スキャン速度が100μM/S以上、パルス繰返し数が20HZ以上、レーザパルスエネルギー強度が5J/CM2以上で照射され、発生するエアロゾルがバッファ容器で一時蓄積され、平均化されて分析対象のガラス固化体中に偏在する白金族元素及び/又は異物の平均濃度が定量される工程を含む。

Patent

ガラス固化体中の異物の検出方法

西澤 代治; 大山 孝一; 宮内 厚志; 永井 崇之

猪瀬 毅彦*

JP, 2014-182856  Patent licensing information  Patent publication (In Japanese)

【課題】簡単で迅速なガラス固化体中の異物の検出方法を提供する。 【解決手段】YAG-5ωレーザが光源として用いられるレーザアブレーション法誘導結合プラズマ発光分光分析法(LA法ICP-AES)によるガラス固化体中の異物の検出方法が、当該レーザ光の線状照射により、(A)異物に特有な元素の局所的なICP発光強度又はICP発光強度の変化、若しくは(B)異物に特有な酸化物の局所的な濃度又は濃度変化が測定され、ガラス固化体中に混入又は偏在する異物が検出される工程を含む。

20 (Records 1-20 displayed on this page)
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