PEP Support Laboratory Leaching and Permeate Stability Tests

Russell, Renee L.; Peterson, Reid A.; Rinehart, Donald E.; Buchmiller, William C.

doi:10.2172/968206

Cited by 3 publications

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“…271 With Buckingham's volte-face over the match, support for war was now virtually incompatible with opposition to the duke. 272 His authority at court was almost complete. The downfall of the ministers who had supported the marriage would, eventually, leave him to advise on, if not in effect to make, their successors.…”

Section: The Appointment Of William Bishop As Bishop Of Chalcedonmentioning

confidence: 99%

“…James had still not given up hope that a deal might be worked out with the Spaniards. 281 The decision to summon a parliament, which (according to Ruigh) was being considered in the second week of November 1623, was regarded, it seems, as a lever to bring the Spaniards to some kind of accommodation, rather than as a forum to break the treaties. 282 Certainly, there is evidence that English Catholics had not despaired of the Anglo-Spanish alliance.…”

Section: The Appointment Of William Bishop As Bishop Of Chalcedonmentioning

confidence: 99%

“…This was, as he points out, the period when 'theologically alert' members of the Commons, such as John Pym, began to be aware that there was a dangerous species of doctrinal novelty creeping in among English Protestants and creating serious dissent within the Church of England. 553 For Russell, however, the sudden and violent anti-popery scare of 1625, if it did not quite come out of nowhere, emerged from normal and traditional anti-popish feeling but at a time when there was no visible 'external' enemy to fight, and when the regime, though outwardly led by a godly Protestant sovereign who had broken with Spain, was forced to prevent the full implementation of that antipopish impulse. 554 Of course, we might wonder whether this was not the first time that this had happened in the 1620s.…”

Section: The 1625 Parliament and The Aftermath Of The Anglo-french Trmentioning

confidence: 99%

“…568 Following the extremely ill-received royal request on 8 July for an additional grant of supply, and a simultaneous announcement of the adjournment of the parliament from plague-ridden London to Oxford, the members reconvened there after intermission (11 July to 1 August). 569 There, the regime experienced a barrage of criticism over how it had conducted its recent business. 570 One of the topics which kept recurring was the issue of Catholicism.…”

Section: The 1625 Parliament and The Aftermath Of The Anglo-french Trmentioning

confidence: 99%

“…569 There, the regime experienced a barrage of criticism over how it had conducted its recent business. 570 One of the topics which kept recurring was the issue of Catholicism.…”

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Introduction

2009

Camden Fifth Series

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1 AAW, B 25-26, and B 47 have no regular foliation. There are two sets of numbering for the documents in B 26. The first set ceases with B 26, no. 50. In the second set, B 26, no. 50 is also numbered B 26, no. 53. However, rather than regarding B 26, according to the first set of document numbers, as unnumbered after B 26, no. 50 (as does Allison, RS), I have used the second set of numbers in B 26 for documents after no. 50/53.2 In the footnotes to the text of these newsletters I have tried to identify individuals where there is any uncertainty about their identity (for example, if they are mentioned via an alias), though this is done only on the first occasion that they are thus mentioned in each letter. I have not, however, for reasons of length, supplied detailed biographical information about such individuals unless it is directly relevant to the newsletter in which they are cited.3 See e.g. Adams, PC; Cogswell, BR.Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi

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Section: The Appointment Of William Bishop As Bishop Of Chalcedonmentioning

confidence: 99%

Section: The Appointment Of William Bishop As Bishop Of Chalcedonmentioning

confidence: 99%

Section: The 1625 Parliament and The Aftermath Of The Anglo-french Trmentioning

confidence: 99%

Section: The 1625 Parliament and The Aftermath Of The Anglo-french Trmentioning

confidence: 99%

“…569 There, the regime experienced a barrage of criticism over how it had conducted its recent business. 570 One of the topics which kept recurring was the issue of Catholicism.…”

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confidence: 99%

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Introduction

2009

Camden Fifth Series

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Alternative Sodium Recovery Technology?High Hydroxide Leaching: FY10 Status Report

Mahoney¹,

Neiner²,

Peterson³

et al. 2011

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SummaryBoehmite leaching tests were carried out at NaOH concentrations of 10 M and 12 M, temperatures of 85°C and 60°C, and a range of initial aluminate concentrations. These data, and data obtained during earlier 100°C tests using 1 M and 5 M NaOH, were used to establish the dependence of the boehmite dissolution rate on hydroxide concentration, temperature, and initial aluminate concentration. A semiempirical kinetic model for boehmite leaching was fitted to the data and used to calculate the NaOH additions required for leaching at hydroxide concentrations between 5 M and 12 M. The optimal NaOH concentration for boehmite leaching at 85°C was estimated, based on minimizing the amount of Na that had to be added in NaOH to produce a given boehmite conversion.It was found that the sodium is used most efficiently (i.e., the mass of sodium/mass of aluminum in the waste is minimized) at NaOH concentrations of 7 to 9 M, depending on the initial distribution of the aluminum-containing compounds. The simulations indicated that the amount of sodium could potentially be reduced to one-third of that needed for the 5-M case. Furthermore, significant reductions in leaching time (per batch) were also demonstrated to be attainable at higher NaOH concentrations, typically greater than 10 M.The semi-empirical kinetic model that minimized the prediction error was found to be The fitted values of the pre-exponential constant, 0.00618/hr/(M OH)1.471 , the activation energy, 115 kJ/mol, and the exponent of the free hydroxide concentration, 1.471, were sharply defined, statistically speaking. Relatively small percentage changes in these parameters, ± 17% for the rate constant, ± 11% for the activation energy, and ± 5% for the hydroxide exponent, caused the sum of squares of the model prediction errors to double. The exponents of the boehmite conversion and initial iv aluminate saturation terms were not defined nearly as well: the error doubled only for percentage changes of 40% to 100% in these parameters. There was some indication that the boehmite exponent was higher than 2 /3, corresponding to a boehmite particle surface whose fractal dimension was between 2 and 3, but the model fit has too little sensitivity to this exponent to make a strong statement about it.In general, the model gave good predictions of reaction rate and conversion over the range of 85°C to 100°C, 5 M NaOH to 12 M NaOH, and at a 0%, 40, or 70% initial aluminate saturation. At lower temperatures or hydroxide concentrations and at higher initial aluminate saturation, the model underpredicted conversion more often than it overpredicted.v

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