IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0116767
(2002-04-04)
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발명자
/ 주소 |
- Amendola,Steven C.
- Kelly,Michael T.
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출원인 / 주소 |
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대리인 / 주소 |
Dickstein Shapiro Morin &
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인용정보 |
피인용 횟수 :
32 인용 특허 :
7 |
초록
The present invention relates to compositions and processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds.
대표청구항
▼
What is claimed is: 1. A process for producing borohydride compounds, comprising: (A) reacting methane with a Y-containing species of formula Y2O to obtain Y, carbon monoxide and H2; (B) reacting the Y with H2 to obtain YH; (C) reacting a boron-containing species of the formula BX 3 with the YH to
What is claimed is: 1. A process for producing borohydride compounds, comprising: (A) reacting methane with a Y-containing species of formula Y2O to obtain Y, carbon monoxide and H2; (B) reacting the Y with H2 to obtain YH; (C) reacting a boron-containing species of the formula BX 3 with the YH to obtain YHBX3; (D) separately reacting BX3 with H2 to obtain B2H6 and HX; and (E) reacting the YHBX3 with B2H6 to obtain YBH4 and BX3, wherein Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, an ammonium ion, and quaternary amines of formula NR4+, wherein R is independently selected from H and straight or branched C1 to C4 alkyl groups; and wherein X is selected from the group consisting of halides, alcohols, alkoxides, chalcogens, and chalcogenides. 2. The process according to claim 1, wherein Y is selected from the group consisting of H, Li, Na, K, Rb, Cs, Fr, NH4+ , Tl, and quaternary amines of formula NR4+, wherein R is independently selected from H and straight or branched C1 to C4 alkyl groups; and wherein X is selected from the group consisting of F, Cl, Br, I, At,--OH, a C1 to C4 alkoxide, O, S, Se, Te, Po,--SR,--SeR, and--TeR, wherein R is H or a straight or branched C1 to C4 alkyl group. 3. The process according to claim 2, wherein Y is selected from the group consisting of Na, Li, and K. 4. The process according to claim 1, wherein the BX3 of step (D) is hydrogenated with an aldehyde selected from the group consisting of formaldehyde, benzaldehyde, acetaldehyde, and mixtures thereof. 5. The process according to claim 1, wherein the steps (D) and (E) are replaced with the following step of reacting YHBX3 with H2 to produce YBH4 and HX. 6. The process according to claim 1, wherein the BX3 produced in step (B) is recycled for use in steps (C) and (D). 7. The process according to claim 1, wherein the H2 produced in step (A) is recycled for use in steps (B) and (D). 8. The process according to claim 1, further comprising reacting methane and water to produce H2 and carbon monoxide; combining the carbon monoxide produced in the previous step and in step (A); reacting the combined carbon monoxide with water to produce additional H2 and carbon dioxide; and recycling the H2 for use in steps (B) and (D). 9. The process according to claim 1, wherein the Y-containing species of the formula Y2O and the boron-containing species of the formula BX3 are obtained by the process comprising: (1) reacting a borate of the formula YBO2 with HX to obtain YX, BX3, and water; (2) reacting the YX with water to obtain YOH and HX; and (3) converting the YOH to Y2O and H2O, wherein Y and X are defined in claim 1. 10. The process according to claim 9, wherein Y is an alkaline earth metal; and wherein YBO2 is replaced with Y(BO 2)2, YX is replaced with YX2, YOH is replaced with Y(OH) 2, Y2O is replaced with YO, YH is replaced with YH2 , YHBX3 is replaced with Y(HBX3)2, and YBH 4 is replaced with Y(BH4)2. 11. The process according to claim 9, wherein the BX3 is obtained by the process comprising: reacting a borate ore of the formula Y2B2O4 with CO2 and H 2O to obtain YHCO3 and B(OH)3; and reacting the B(OH)3 with HX to obtain BX3 and H2O. 12. The process according to claim 9, wherein the X is independently selected to be the same or different in each applicable step. 13. The process according to claim 9, wherein the BX3 produced in step (E) is recycled for use in steps (C) and (D). 14. The process according to claim 9, wherein the H2 produced in step (A) is recycled for use in steps (B) and (D). 15. The process according to claim 9, wherein the HX produced in steps (D) and (2) are recycled for use in step (1). 16. The process according to claim 9, further comprising reacting methane and water to produce H2 and carbon monoxide; combining the carbon monoxide produced in the previous step and in step (A); reacting the combined carbon monoxide with water to produce additional H2 and carbon dioxide; and recycling the H2 for use in steps (B) and (D). 17. The process according to claim 1, wherein the Y-containing species of formula Y2O and the boron-containing species of the formula BX3 and obtained by the process comprising: (i) reacting a borate of the formula YBO2 with CO 2 and H2O to obtain YHCO3 and B2O 3; (ii) converting the YHCO3 to Y2O, CO 2, and H2O; and (iii) reacting the B2O3 with HX to obtain BX3 and H2O, wherein Y and X are defined in claim 1. 18. The process according to claim 17, wherein Y is an alkaline earth metal; and wherein YBO2 is replaced with Y(BO 2)2, YHCO3 is replaced with Y(HCO3) 2, Y2O is replaced with YO, YH is replaced with YH2 , YHBX3 is replaced with Y(HBX3)2, and YBH 4 is replaced with Y(BH4)2. 19. The process according to claim 17, wherein the BX3 and YHCO3 are obtained by the process comprising: reacting a borate ore of the formula Y2B2O4 with CO 2 and H2O to obtain YHCO3 and B(OH)3; and reacting the B(OH)3 with HX to obtain BX3 and H 2O. 20. The process according to claim 17, wherein the B2 O3 and YHCO3 are obtained by the process comprising reacting a borate ore of the formula Y2B2O4 with CO2 and water to obtain YHCO3 and B2O 3. 21. The process according to claim 17, wherein the X is independently selected to be the same or different in each applicable step. 22. The process according to claim 17, wherein steps (ii) and (A) are substituted with the following steps (ii1) and (A1): (ii1) converting YHCO3 to Y2CO3, water and carbon dioxide; and (A1) reacting the Y2CO3 with carbon to obtain 2Y and carbon monoxide. 23. The process according to claim 17, wherein the BX3 produced in step (E) is recycled for use in steps (C) and (D). 24. The process according to claim 17, wherein the H2 produced in step (A) is recycled for use in steps (B) and (D). 25. The process according to claim 17, wherein the HX produced in step (D) is recycled for use in step (iii). 26. The process according to claim 17, wherein carbon dioxide produced in step (ii) is recycled for use in step (i). 27. The process according to claim 17, further comprising reacting methane and water to produce H2 and carbon monoxide; combining the carbon monoxide produced in the previous step and in step (A); reacting the combined carbon monoxide with water to produce additional H2 and carbon dioxide; recycling the H2 for use in steps (B) and (D); and recycling the carbon dioxide for use in step (i).
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