• Register

Welcome to Kemandi Q&A, where you can post problems of Math, Physics, Chemistry and other subjects and receive answers from other members of the community. It is to help high school and college students study and share knowledge.

The use of the site is free.

Need a help on using this site? click here

Recent questions and answers in Chemistry

0 votes
0 answers
Basaltic sand making machine basic

Basalt is a kind of rock mine, the application of the stone is very wide, in addition to the application in the construction industry, but also can be used in indoor and outdoor decoration, outdoor landscape, floor stone and other fields, the domestic demand for the rock is very large, So the material has been widely used.
Basalt sand making machine, also known as the basalt impact sand machine, we can find from the name: the equipment is both sand equipment, but also crushing equipment, but they can be collectively referred to as gravel equipment. With the continuous expansion of demand for basalt resources, the application of the equipment and the use of the field has also been significantly improved, especially with the rapid development of science and technology, the equipment performance and advantages are more and more prominent feature is Stable operation, high production efficiency, fine grain size, etc. In addition, the device can also achieve noise-free production mode of operation, the move on the realization of energy saving and environmental protection also played a positive significance. Basalt sand making machine manufacturers have a lot, which one of the most favorable equipment prices it? Based on the sales report in 2015 and the recommendation of industry authorities, we have chosen SBM Group, which is reasonably fair and reasonable to meet the actual needs of our customers. The price of the equipment is not fixed. It is related to many factors. , The following we discuss the impact of the price in detail.

asked 2 days ago in Chemistry by anonymous
0 votes
0 answers
Beneficiation action of gold ore bathrobe

Gold is a gold ore or gold deposit, gold ore is a acceptable agreeable of gold and automated use of mineral aggregates. But we calm aback is not anon gold, we charge to access the gold through the beneficiation, gold beneficiation action includes: flotation, alluring separation, re-election, etc., and re-election and abutment is frequently acclimated method, admixture is Gold assembly of the endure process.
Flotation adjustment Abutment method: Abutment adjustment for ambidextrous with coarse, average atom accustomed gold adamant ore. The accessories acclimated is jaw crusher, cone crusher, cavernous screen, brawl mill, abutment apparatus and so on. Gold ore is torn into the brawl comminute afterwards grinding, and again into the abutment apparatus into the abutment apparatus flotation. Abutment action with sodium carbonate as a regulator, xanthate and amine atramentous biologic as a collector. Abutment can not aftermath accomplished gold, a lot of of the gold can alone be concentrated in a array of sulfide concentrate, so about do not use a individual abutment process, but the abutment as one of the collective action of the process.
The a lot of able and economical adjustment for the alternative of beach gold and accomplished gold, the assumption of mineral processing is based on differences in mineral body selection, the capital accessories acclimated chute, Shaker, jig and abbreviate cone cyclone. The gold ore crusher beach into the annular sieve, through the high-pressure baptize for the ore, the clarify than the clarify through the bad, the belt transported to the tailings; beneath than the clarify through the bus into the jig, by 3 Segment jig beneficiation, concentrates into the shaker, the coarse, fine, sweep, and ultimately aftermath accomplished beach mine.
Mixed mercury adjustment gold deposit: alloyed mercury adjustment is an age-old gold abstraction action for accustomed gold anchored bolt base atom size, stored in pyrite and added sulfide ore base gold monomer recovery, mineral processing costs Low and the action is simple, but the greater abuse to the environment. The alpha of the alloyed mercury adjustment and abutment are torn and grinding, cutting to add sodium carbonate, abrasive soda, etc., can finer advance the mercury accretion rate, afterwards the mercury bowl for gold recovery, the accretion amount of up to 70 %.
Heap leaching gold method: abundance leaching is the best way to accord with low brand gold-bearing ore, low cost, simple operation, simple equipment. Abundance leaching gold for large-scale, low-grade gold, the action is in the basal of the actual on the heap, through the sodium cyanide band-aid apportionment spray, so that the ore in the gold and argent attenuated out.
The gold-making action is acceptable for altered types of gold, gold casting action about accept to breach through the crusher, cutting action of the brawl mill, and again baddest the beneficiation process. In fact, the beneficiation bulb in the acclamation will about use at atomic two kinds of mineral processing action accumulated with the way, because the agreement of gold minerals is added complex, afterwards a array of action to accommodated the appropriate superior of the concentrate.

asked Jul 3 in Chemistry by anonymous
0 votes
0 answers
How is the bentonite Raymond mill?


Brief Introduction of Bentonite Raymond Mill
Bentonite Raymond Mill is a new type of Raymond Mill developed by SBM Machine Factory for bentonite characteristics. It can be more specialized and targeted for efficient milling of bentonite, which is other traditional mill on the market Can not be achieved. The equipment has an unparalleled structure and performance advantages, the use of three-dimensional structure design, can reduce the size, reduce the area, more convenient transportation, installation and application, with good flexibility; Second, the equipment roller, Rings and other major components are made of high-strength wear-resistant materials, has a very good durability, its quality fully meet the international standards of the highest standards of service life than ordinary milling machine increased by 80% or more; In addition, the equipment also It has the advantages of high degree of automation, simple operation, strong system, low price, good grinding effect, strong energy saving ability, zero pollution, low noise and so on. It is popular with domestic and foreign bentonite processing enterprises. So what about bentonite raymond mill? What is the practical effect?
Bentonite Raymond Mill User Feedback
Bentonite Raymond Mill excellent performance to attract a lot of grinding business investment eyes, the following are some of the customer's real feedback:
1, Shanxi Taiyuan bentonite processing plant official said: Our company is a specialized export of bentonite powder processing enterprises, there are five to Bentonite Raymond Mill-based milling production line, are by the SBM machine technical staff for the We tailored design, these production lines from raw materials processing to milling and then to the final packaging and transportation, forming an independent and complete production system, very easy to use, but also for us to save a lot of investment costs. At present, the operation of the five production lines has been very stable, the output is very high, the production of bentonite powder by the customer's unanimously approved in the market has a good price for my company to become the city's largest bentonite processing enterprises laid The foundation.
2, Henan Luanchuan bentonite processing plant official said: My company had three bentonite milling production line, but its operation has been less than ideal, the main reason is the performance of the mill is not stable enough. By the friend, my company decided to use SBM machine production of bentonite Raymond Mill on the original production line transformation, and SBM machine after the contract, the company directly selected professional and technical personnel to my company site investigation, according to the actual situation for us Equipped with three new Bentonite Raymond Mill, and free for our on-site installation, commissioning, while guiding some of our operations and daily maintenance details, to be run only a month after the production line to return, this spirit really touched us. After the transformation of the milling production line running effect is very good, the finished product quality is solid, high purity, high efficiency, no pollution, low noise, just use 3 months time, for my company set a nearly one million economic benefits, So that my company's production efficiency to a higher level of a new level.
3, Shandong, a bentonite processing plant official said: Since the company used the SBM machine production of bentonite ultrafine mill, has never been a bad failure, the energy-saving effect of the mill is very significant, excellent milling effect , At present my company's bentonite powder in the market has a very good sales, brought us far beyond the expected profit margins. In addition, SBM machine staff is very enthusiastic, from the equipment purchase, contract signing, installation commissioning, after-sales service, has been wholeheartedly for us to do guidance and timely solve the problem, for us to save a lot of trouble.
From the customer point of view, the true and effective reflection of the actual application of bentonite Raymond mill effect, fully proved the excellent performance of the device. At present, Bentonite Raymond Mill is not only in the domestic market has a very good reputation, but also in the international community also enjoy a high market position, become my company's most popular products, to promote the global use of bentonite resources played an important role.

asked Jun 27 in Chemistry by anonymous
0 votes
1 answer
answered Apr 11, 2016 in Chemistry by anonymous
0 votes
1 answer
0 votes
1 answer
Determine the molar mass of the following compound.

Ammonium Dichromate ((NH4)2Cr2O7)

answered Sep 13, 2015 in Chemistry by thb (2,000 points)
0 votes
1 answer
Calculate the number of moles in the following.

Positive and negative ions in 1.75 moles of calcium fluoride (CaF2)

answered Sep 13, 2015 in Chemistry by thb (2,000 points)
0 votes
1 answer
Calculate the number of moles in the following.

Atoms of each element in 3.35 moles of aspirin (C9H8O4)

answered Sep 13, 2015 in Chemistry by thb (2,000 points)
0 votes
1 answer
Calculate the number of moles in 346 g of zinc

How many moles of Zinc react in this equation: Zn + 2HCl > ZnCl2 +H2?

You have 12 mols of HCl.

answered Sep 13, 2015 in Chemistry by thb (2,000 points)
To see more, click for all the questions in this category.
...